Статті в журналах: "Shape memory assisted self-healing"

1

Luo, Xiaofan, and Patrick T. Mather. "Shape Memory Assisted Self-Healing Coating." ACS Macro Letters 2, no. 2 (February 2013): 152–56. http://dx.doi.org/10.1021/mz400017x.

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2

Xie, Fang, Zhongxin Ping, Wanting Xu, Fenghua Zhang, Yuzhen Dong, Lianjie Li, Chengsen Zhang, and Xiaobo Gong. "A Metal Coordination-Based Supramolecular Elastomer with Shape Memory-Assisted Self-Healing Effect." Polymers 14, no. 22 (November 12, 2022): 4879. http://dx.doi.org/10.3390/polym14224879.

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Rubber materials are widely used in aerospace, automotive, smart devices and artificial skin. It is significant to address the aging susceptibility of conventional vulcanized rubber and to impart it rapid self-healing performance for destructive crack damage. Herein, a novel supramolecular rubber elastomer is prepared by introducing metal coordination between carboxyl-terminated polybutadiene and polystyrene-vinylpyridine copolymer. Based on the metal coordination interaction, the elastomer exhibits shape memory and self-healing properties. Moreover, a rapid closure-repair process of destructive cracks is achieved by presetting temporary shapes. This shape memory-assisted self-repair model is shown to be an effective means for rapid repair of severe cracks. An approach to enhance the mechanical and self-healing properties of elastomer was demonstrated by adding appropriate amounts of oxidized carbon nano-onions (O-CNO) into the system. The tensile strength of the elastomer with an O-CNOs content of 0.5 wt% was restored to 83 ± 10% of the original sample after being repaired at 85 °C for 6 h. This study confirms that metal coordination interaction is an effective method for designing shape memory self-healing rubber elastomer. The shape memory-assisted self-healing effect provides a reference for the rapid self-repairing of severe cracks.

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3

Bhattacharya, Swapnil, Richard Hailstone, and Christopher L. Lewis. "Thermoplastic Blend Exhibiting Shape Memory-Assisted Self-Healing Functionality." ACS Applied Materials & Interfaces 12, no. 41 (September 15, 2020): 46733–42. http://dx.doi.org/10.1021/acsami.0c13645.

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4

Menon, Aishwarya V., Giridhar Madras, and Suryasarathi Bose. "The journey of self-healing and shape memory polyurethanes from bench to translational research." Polymer Chemistry 10, no. 32 (2019): 4370–88. http://dx.doi.org/10.1039/c9py00854c.

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In this critical review, we have enlisted a comprehensive summary of different approaches that have been used over the past decade to synthesize self-healing polyurethanes including “close then heal” and “shape memory assisted self-healing” concept.

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5

Xu, Yurun, and Dajun Chen. "Shape memory-assisted self-healing polyurethane inspired by a suture technique." Journal of Materials Science 53, no. 14 (April 20, 2018): 10582–92. http://dx.doi.org/10.1007/s10853-018-2346-9.

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6

Yang, Li, Xili Lu, Zhanhua Wang, and Hesheng Xia. "Diels–Alder dynamic crosslinked polyurethane/polydopamine composites with NIR triggered self-healing function." Polymer Chemistry 9, no. 16 (2018): 2166–72. http://dx.doi.org/10.1039/c8py00162f.

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A new kind of ultrafast near-infrared light responsive shape memory assisted self-healing polymer composite was prepared by introducing polydopamine particles (PDAPs) into polyurethane containing Diels–Alder bonds.

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7

Wang, Q., J. Meng, Y. Ma, and L. Xia. "Thermally assisted self-healing and shape memory behaviour of natural rubber based composites." Express Polymer Letters 15, no. 10 (2021): 929–39. http://dx.doi.org/10.3144/expresspolymlett.2021.75.

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8

Rodriguez, Erika D., Xiaofan Luo та Patrick T. Mather. "Linear/Network Poly(ε-caprolactone) Blends Exhibiting Shape Memory Assisted Self-Healing (SMASH)". ACS Applied Materials & Interfaces 3, № 2 (21 січня 2011): 152–61. http://dx.doi.org/10.1021/am101012c.

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9

Ručigaj, Aleš, Rok Ambrožič, and Matjaž Krajnc. "Thermally Assisted Self‐Healing and Shape Memory Behavior of Diphenolic Acid‐Based Benzoxazines." Macromolecular Materials and Engineering 305, no. 12 (October 12, 2020): 2000463. http://dx.doi.org/10.1002/mame.202000463.

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10

Shojaei, Amir, Soodabeh Sharafi, and Guoqiang Li. "A multiscale theory of self-crack-healing with solid healing agent assisted by shape memory effect." Mechanics of Materials 81 (February 2015): 25–40. http://dx.doi.org/10.1016/j.mechmat.2014.10.008.

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11

Wu, X. L., W. M. Huang, Z. G. Seow, W. S. Chin, W. G. Yang, and K. Y. Sun. "Two-step shape recovery in heating-responsive shape memory polytetrafluoroethylene and its thermally assisted self-healing." Smart Materials and Structures 22, no. 12 (November 14, 2013): 125023. http://dx.doi.org/10.1088/0964-1726/22/12/125023.

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12

Dong, Yuhua, Yuanyuan Yin, Xueyan Du, Chunmei Liu, and Qiong Zhou. "Effect of MXene@PANI on the self-healing property of shape memory-assisted coating." Synthetic Metals 291 (December 2022): 117162. http://dx.doi.org/10.1016/j.synthmet.2022.117162.

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13

Dzhardimalieva, Gulzhian I., Bal C. Yadav, Igor E. Uflyand, Cesar M. Oliva González, Boris I. Kharisov, Oxana V. Kharissova, and Beatriz Ortega García. "A review on the polymers with shape memory assisted self-healing properties for triboelectric nanogenerators." Journal of Materials Research 36, no. 6 (March 28, 2021): 1225–40. http://dx.doi.org/10.1557/s43578-021-00149-x.

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14

Lazauskas, Algirdas, Dalius Jucius, Valentinas Baltrušaitis, Rimantas Gudaitis, Igoris Prosyčevas, Brigita Abakevičienė, Asta Guobienė, Mindaugas Andrulevičius, and Viktoras Grigaliūnas. "Shape-Memory Assisted Scratch-Healing of Transparent Thiol-Ene Coatings." Materials 12, no. 3 (February 4, 2019): 482. http://dx.doi.org/10.3390/ma12030482.

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A photopolymerizable thiol-ene composition was prepared as a mixture of pentaerythritol tetrakis(3-mercaptopropionate) (PETMP) and 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (TTT), with 1 wt. % of 2,2-dimethoxy-2-phenylacetophenone (DMPA) photoinitiator. A systematic analytical analysis that investigated the crosslinked PETMP-TTT polymer coatings employed Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, differential scanning calorimetry, thermogravimetric analysis, pencil hardness, thermo-mechanical cyclic tensile, scratch testing, and atomic force microscopy. These coatings exhibited high optical transparency and shape-memory that assisted scratch-healing properties. Scratches produced on the PETMP-TTT polymer coatings with different constant loadings (1.2 N, 1.5 N, and 2.7 N) were completely healed after the external stimulus was applied. The strain recovery ratio and total strain recovery ratio for PETMP-TTT polymer were found to be better than 94 ± 1% and 97 ± 1%, respectively. The crosslinked PETMP-TTT polymer network was also capable of initiating scratch recovery at ambient temperature conditions.

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15

Huang, Jiarong, Zhou Gong, and Yukun Chen. "A stretchable elastomer with recyclability and shape memory assisted self-healing capabilities based on dynamic disulfide bonds." Polymer 242 (March 2022): 124569. http://dx.doi.org/10.1016/j.polymer.2022.124569.

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16

Ren, Du, Yujie Chen, Hua Li, Hafeez Ur Rehman, Yunli Cai, and Hezhou Liu. "High-efficiency dual-responsive shape memory assisted self-healing of carbon nanotubes enhanced polycaprolactone/thermoplastic polyurethane composites." Colloids and Surfaces A: Physicochemical and Engineering Aspects 580 (November 2019): 123731. http://dx.doi.org/10.1016/j.colsurfa.2019.123731.

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17

Wang, C. C., W. M. Huang, Z. Ding, Y. Zhao, H. Purnawali, L. X. Zheng, H. Fan, and C. B. He. "Rubber-like shape memory polymeric materials with repeatable thermal-assisted healing function." Smart Materials and Structures 21, no. 11 (September 21, 2012): 115010. http://dx.doi.org/10.1088/0964-1726/21/11/115010.

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18

Cao, Ying, Jiatian Zhang, Dandan Zhang, Yan Lv, Jie Li, Yiting Xu, Kaibin He, et al. "A novel shape memory-assisted and thermo-induced self-healing boron nitride/epoxy composites based on Diels–Alder reaction." Journal of Materials Science 55, no. 25 (May 26, 2020): 11325–38. http://dx.doi.org/10.1007/s10853-020-04842-w.

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19

Chen, Yi, Xing Zhao, Yan Li, Zhao-Yuan Jin, Yi Yang, Ming-Bo Yang, and Bo Yin. "Light- and magnetic-responsive synergy controlled reconfiguration of polymer nanocomposites with shape memory assisted self-healing performance for soft robotics." Journal of Materials Chemistry C 9, no. 16 (2021): 5515–27. http://dx.doi.org/10.1039/d1tc00468a.

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20

Lazauskas, Algirdas, Dalius Jucius, Brigita Abakevičienė, Asta Guobienė, and Mindaugas Andrulevičius. "Trilayer Composite System Based on SiO2, Thiol-Ene, and PEDOT:PSS. Focus on Stability after Thermal Treatment and Solar Irradiance." Polymers 13, no. 19 (October 7, 2021): 3439. http://dx.doi.org/10.3390/polym13193439.

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The trilayer composite was fabricated by combining functional layers of fumed SiO2, thiol-ene, and poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT-PSS). Optical, scratch-healing, non-wetting, and electrical stability was investigated at different instances of time after thermal and solar irradiance treatment. The trilayer composite was found to be optically stable and highly transparent for visible light after thermal and irradiance treatment for 25 h. Both treatment processes had a minor effect on the shape-memory assisted scratch-healing performance of the trilayer composite. Thermal treatment and solar irradiance did not affect the superhydrophobic properties (contact angle 170 ± 1°) of the trilayer composite. The sheet resistance increased from 90 ± 3 Ω/square (initial) to 109 ± 3 Ω/square (thermal) and 149 ± 3 Ω/square (irradiance) after 25 h of treatment, which was considered as not significant change.

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21

Shi, Xiangchao, Yachao Zhang, Dong Wu, Tao Wu, Shaojun Jiang, Yunlong Jiao, Sizhu Wu, et al. "Femtosecond Laser-Assisted Top-Restricted Self-Growth Re-Entrant Structures on Shape Memory Polymer for Dynamic Pressure Resistance." Langmuir 36, no. 41 (September 23, 2020): 12346–56. http://dx.doi.org/10.1021/acs.langmuir.0c02335.

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22

Mkhize-Mthembu, Ntokozo S., Khulekani Luthuli, Nontuthuko Phewa, and Siphiwe Madondo. "Using Memory Work To Recall Childhood Experiences of Learning: Collaborative Reflections on Four Self-Study Projects." Educational Research for Social Change 11, no. 2 (October 28, 2022): 1–15. http://dx.doi.org/10.17159/2221-4070/2021/v11i2a2.

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We are South African self-study researchers who started building our collaborative relationship as critical friends completing our doctoral studies. We have a keen interest in self-study research, and we all received our doctorates through self-study using arts-based research. Our collective self-study explores our doctoral work as critical friends teaching and learning using arts-based research in education. This article presents how we used memory work in a self-study project to elicit childhood memories for teacher-learner engagement and mentor-mentee knowledge sharing. We understand that a sociocultural theoretical perspective highlights the fundamental requirement of working together in educational contexts to make sense of collective and personal experiences. In addition, employing self-study research and revisiting our learning has assisted or even encouraged us to engage deeply with past life experiences to improve our teaching practice. We understand that our past experiences have the power to shape our teaching practices now and in the future. Although these experiences occur both inside and outside the classroom, the principles that we endorse remain the same: collaborative and interactive teaching and learning, and acknowledging the children's and our own earlier learning and backgrounds.

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23

Xie, Qiaolian, Qiaoling Meng, Wenwei Yu, Rongna Xu, Zhiyu Wu, Xiaoming Wang, and Hongliu Yu. "Design of a soft bionic elbow exoskeleton based on shape memory alloy spring actuators." Mechanical Sciences 14, no. 1 (March 27, 2023): 159–70. http://dx.doi.org/10.5194/ms-14-159-2023.

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Abstract. Shape memory alloy (SMA) is a kind of active deformation material with a self-sensing and driving ability. It is very similar to the performance of human muscles, and through temperature changes to produce phase changes to output force and displacement, it has the ability to restore the initial shape and size. The combination of SMA and wearable robotic technology has the advantages of being light weight, energy-saving, and having great human–exoskeleton interaction. However, the existing flexible exoskeletons driven by SMA are only designed with bionic primary muscles, ignoring the role of antagonistic muscles. This study presents a novel soft bionic elbow exoskeleton based on SMA spring actuators (Sobee-SMA). The exoskeleton adopts a bionic design, combining active deformation material SMA and a high-elastic-material rubber band to simulate the contraction and relaxation of elbow skeletal muscles. Through a pulse width modulation (PWM) experiment, the driving voltage is selected as 12 V, the PWM duty cycle is 90 % during heating, and the PWM duty cycle is 18 % during heat preservation. In a relaxed state of healthy subjects, the range of motion of the elbow is about 0–80∘, and the maximum temperature is about 60–70 ∘C. During the circular movement of the elbow, the maximum temperature can be maintained within the SMA operating temperature without a high temperature. In conclusion, the exoskeleton provides elbow-assisted motion and ensures the safety of the heating process.

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24

Accorsi, Mauricio. "Virtual planning for vertical control using temporary anchorage devices." APOS Trends in Orthodontics 5 (June 26, 2015): 162–65. http://dx.doi.org/10.4103/2321-1407.159414.

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The new and innovative technologies are unprecedentedly improving the level of proficiency in orthodontics in the recent history of this area of expertise. The proliferation of advances, such as self-ligating systems, temporary anchorage devices, shape-memory wires, robotically wire bending, intraoral scanners, cone-beam computed tomography, bring the virtual planning, and confection of dental devices through CAD/CAM systems to the real world. In order to get efficiency and efficacy in orthodontics with these new technologies, we must understand the importance of systemically managed clinical information, medical, and dentistry history of the patients, including the images resources, which ensures the use of a communication that is assisted by the technology, with an interdisciplinary team so that the database is able to help and support the process of therapeutic decision-making. This paper presents the clinical case of a borderline patient for orthognathic surgery who had his final treatment planning supported by these new tools for three-dimensional diagnosis and virtual planning.

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25

Hornat, Chris C., and Marek W. Urban. "Shape memory effects in self-healing polymers." Progress in Polymer Science 102 (March 2020): 101208. http://dx.doi.org/10.1016/j.progpolymsci.2020.101208.

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26

Wang, C. C., Z. Ding, H. Purnawali, W. M. Huang, H. Fan, and L. Sun. "Repeated Instant Self-healing Shape Memory Composites." Journal of Materials Engineering and Performance 21, no. 12 (September 11, 2012): 2663–69. http://dx.doi.org/10.1007/s11665-012-0374-1.

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27

Kong, Deyan, Jie Li, Anru Guo, Xintong Zhang, and Xinli Xiao. "Self-healing high temperature shape memory polymer." European Polymer Journal 120 (November 2019): 109279. http://dx.doi.org/10.1016/j.eurpolymj.2019.109279.

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28

Zang, Xiaoling, Yonglin He, Zizheng Fang, Xusheng Wang, Junhui Ji, Yapei Wang, and Mianqi Xue. "Self‐Healing and Shape‐Memory Superconducting Devices." Macromolecular Materials and Engineering 305, no. 2 (December 17, 2019): 1900581. http://dx.doi.org/10.1002/mame.201900581.

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29

Lee, Jeong Hwan, Ronan Hinchet, Sung Kyun Kim, Sanghyun Kim, and Sang-Woo Kim. "Shape memory polymer-based self-healing triboelectric nanogenerator." Energy & Environmental Science 8, no. 12 (2015): 3605–13. http://dx.doi.org/10.1039/c5ee02711j.

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We introduce a new smart SMP–TENG structure and studied its degradation and healing process. The SMP improves the endurance and lifetime, and thus demonstrates the huge potential of self-healing SMP–TENGs.

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30

Bellah, Masum, Michael Nosonovsky, and Pradeep Rohatgi. "Shape Memory Alloy Reinforced Self-Healing Metal Matrix Composites." Applied Sciences 13, no. 12 (June 6, 2023): 6884. http://dx.doi.org/10.3390/app13126884.

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This paper reviews the synthesis, characterization, healing assessment, and mechanics of NiTi and other shape memory alloy (SMA)-reinforced self-healing metal matrix composites (SHMMCs). Challenges to synthesizing and characterizing the SMA-reinforced SHMMCs and the strategies followed to overcome those challenges are discussed. To design the SMA-reinforced SHMMCs, it is necessary to understand their microstructural evolution during melting and solidification. This requires the knowledge of the thermodynamics of phase diagrams and nonequilibrium solidification, which are presented in this paper for a model self-healing composite system. Healing assessment provides information about the autonomous and multicycle healing capability of synthesized SHMMCs, which ultimately determines their success. Different techniques to assess the degree of healing of SHMMCs are discussed in this paper. Strategies are explored to find the optimum volume fraction of SMA wires needed to yield the matrix and prevent damage to the SMA wires for the most effective healing. Finally, major challenges, knowledge gaps, and future research directions, including the need for autonomous and multicycle healing capability in SMA-reinforced SHMMCs, are outlined.

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31

Habault, Damien, Hongji Zhang, and Yue Zhao. "Light-triggered self-healing and shape-memory polymers." Chemical Society Reviews 42, no. 17 (2013): 7244. http://dx.doi.org/10.1039/c3cs35489j.

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32

Salowitz, Nathan, Ameralys Correa, Trishika Santebennur, Afsaneh Dorri Moghadam, Xiaojun Yan, and Pradeep Rohatgi. "Mechanics of nickel–titanium shape memory alloys undergoing partially constrained recovery for self-healing materials." Journal of Intelligent Material Systems and Structures 29, no. 15 (June 18, 2018): 3025–36. http://dx.doi.org/10.1177/1045389x18781260.

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Engineered self-healing materials seek to create an innate ability for materials to restore mechanical strength after incurring damage, much like biological organisms. This technology will enable the design of structures that can withstand their everyday use without damage but also recover from damage due to an overload incident. One of the primary mechanisms for self-healing is the incorporation of shape memory fibers in a composite type structure. Upon activation, these shape memory fibers can restore geometric changes caused by damage and close fractures. To date, shape memory–based self-healing, without bonding agents, has been limited to geometric restoration without creating a capability to withstand externally applied tensile loads due to the way the shape memory material has been integrated into the composite. Some form of bonding has been necessary for self-healing materials to resist an externally applied load after healing. This article presents results of new study into using a form of constrained recovery of nickel–titanium shape memory alloys in self-healing materials to create residual compressive loads across fractures in the low temperature martensitic state. Analysis is presented relating internal loads in self-healing materials, potentially generated by shape memory alloys, to the capability to resist externally applied loads. Supporting properties were experimentally characterized in nickel–titanium shape memory alloy wires. Finally, self-healing samples were synthesized and tested demonstrating the ability to resist externally applies loads without bonding. This study provides a new useful characterization of nickel–titanium applicable to self-healing structures and opens the door to new forms of healing like incorporation of pressure-based bonding.

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33

Jacobson, Nathan D., and Jude Iroh. "Shape Memory Corrosion-Resistant Polymeric Materials." International Journal of Polymer Science 2021 (June 29, 2021): 1–18. http://dx.doi.org/10.1155/2021/5558457.

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Анотація:

Shape memory alloys, materials capable of being deformed and maintaining the deformation and additionally capable of returning to the initial position, are valued for a range of applications from actuators to flexible microdevices. Maintaining the properties that make them useful, their ability to deform and reform, requires that shape memory alloys must be protected against corrosion, in which the integration of shape memory polymers can act as a means of protection. Thus, this review is to highlight the utility of self-healing shape memory polymers as a means of corrosion inhibition. Therefore, this review discusses the benefits of utilizing self-healing shape memory polymers for the protection of shape memory, several types of self-healing polymers that could be used, means of improving or tailoring the polymers towards specific usages, and future prospects in designing a shape memory polymer for use in corrosion inhibition.

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34

Saeedi, Ali, and Mahmood M. Shokrieh. "A novel self-healing composite made of thermally reversible polymer and shape memory alloy reinforcement." Journal of Intelligent Material Systems and Structures 30, no. 10 (April 17, 2019): 1585–93. http://dx.doi.org/10.1177/1045389x19844015.

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Анотація:

A novel self-healing polymer composite made of the thermally reversible polymer matrix and shape memory alloy reinforcement is introduced. The healing system is designed in such a way that by heating the structure, activation of shape recovery in shape memory alloy and chemical reversible reactions in polymer occur simultaneously. In the present healing method, the required crack closure force is provided by activating the embedded shape memory alloy wires in the polymer. Both superelastic and shape memory effects of shape memory alloy are considered on the fracture behavior of composites by investigating the passive and active reinforcement methods, respectively. Double cleavage drilled compression tests are utilized in order to study the fracture behavior and healing efficiency of composites. In the case of passive reinforcement, embedding 2% prestrained shape memory alloy wires caused 15% enhancement in the fracture toughness of composites. In this prestrain level, results of the micromechanical model are in good agreement with experiments. Promising results are also obtained for healing efficiency of composites in the case of active reinforcement. The average healing efficiency of 92% is achieved for shape memory alloy-reinforced thermally reversible epoxy composites. The excellent healing performance, without the necessity of external force and pressure, makes the present healing method as an ideal candidate for utilizing self-healing composite structures.

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35

Wang, Qi, Yutao Li, Jianbin Xiao, and Lin Xia. "Intelligent Eucommia ulmoides Rubber/Ionomer Blends with Thermally Activated Shape Memory and Self-Healing Properties." Polymers 15, no. 5 (February 26, 2023): 1182. http://dx.doi.org/10.3390/polym15051182.

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Анотація:

Intelligent Eucommia ulmoides rubber (EUR) and ionomer Surlyn resin (SR) blends were prepared and studied in this manuscript. This is the first paper to combine EUR with SR to prepare blends with both the shape memory effect and self-healing capability. The mechanical, curing, thermal, shape memory and self-healing properties were studied by a universal testing machine, differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA), respectively. Experimental results showed that the increase in ionomer content not only improved mechanical and shape memory properties but also endowed the compounds with excellent self-healing ability under the appropriate environmental conditions. Notably, the self-healing efficiency of the composites reached 87.41%, which is much higher than the efficiency of other covalent cross-linking composites. Therefore, these novel shape memory and self-healing blends can expand the use of natural Eucommia ulmoides rubber, such as in special medical devices, sensors and actuators.

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36

Luo, Hongsheng, Huaquan Wang, Huankai Zhou, Xingdong Zhou, Jinlian Hu, Guobin Yi, Zhifeng Hao, and Wenjing Lin. "Shape Memory-Enhanced Electrical Self-Healing of Stretchable Electrodes." Applied Sciences 8, no. 3 (March 7, 2018): 392. http://dx.doi.org/10.3390/app8030392.

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37

Quadrini, Fabrizio, Denise Bellisario, Leandro Iorio, Loredana Santo, Panagiotis Pappas, Nikolaos Koutroumanis, George Anagnostopoulos, and Costas Galiotis. "Shape Memory Composite Sandwich Structures with Self-Healing Properties." Polymers 13, no. 18 (September 10, 2021): 3056. http://dx.doi.org/10.3390/polym13183056.

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In this study, Polyurea/Formaldehyde (PUF) microcapsules containing Dicyclopentadiene (DCPD) as a healing substance were fabricated in situ and mixed at relatively low concentrations (<2 wt%) with a thermosetting polyurethane (PU) foam used in turn as the core of a sandwich structure. The shape memory (SM) effect depended on the combination of the behavior of the PU foam core and the shape memory polymer composite (SMPC) laminate skins. SMPC laminates were manufactured by moulding commercial carbon fiber-reinforced (CFR) prepregs with a SM polymer interlayer. At first, PU foam samples, with and without microcapsules, were mechanically tested. After, PU foam was inserted into the SMPC sandwich structure. Damage tests were carried out by compression and bending to deform and break the PU foam cells, and then assess the structure self-healing (SH) and recovery capabilities. Both SM and SH responses were rapid and thermally activated (120 °C). The CFR-SMPC skins and the PU foam core enable the sandwich to exhibit excellent SM properties with a shape recovery ratio up to 99% (initial configuration recovery). Moreover, the integration of microcapsules (0.5 wt%) enables SH functionality with a structural restoration up to 98%. This simple process makes this sandwich structure ideal for different industrial applications.

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38

Kazemi-Lari, Mohammad A., Mohammad H. Malakooti, and Henry A. Sodano. "Active photo-thermal self-healing of shape memory polyurethanes." Smart Materials and Structures 26, no. 5 (April 5, 2017): 055003. http://dx.doi.org/10.1088/1361-665x/aa677d.

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Rohatgi, P. K. "Al-shape memory alloy self-healing metal matrix composite." Materials Science and Engineering: A 619 (December 2014): 73–76. http://dx.doi.org/10.1016/j.msea.2014.09.050.

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Gyarmati, Benjámin, Barnabás Áron Szilágyi, and András Szilágyi. "Reversible interactions in self-healing and shape memory hydrogels." European Polymer Journal 93 (August 2017): 642–69. http://dx.doi.org/10.1016/j.eurpolymj.2017.05.020.

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Li, Shuai, Jun Zhang, Jianjun Chen, Ming Yao, Xuepeng Liu, and Zhiguo Jiang. "Self-Healing Polycarbonate-Based Polyurethane with Shape Memory Behavior." Macromolecular Research 27, no. 7 (May 30, 2019): 649–56. http://dx.doi.org/10.1007/s13233-019-7090-8.

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42

Birjandi Nejad, Hossein, Katie L. Garrison, and Patrick T. Mather. "Comparative analysis of shape memory-based self-healing coatings." Journal of Polymer Science Part B: Polymer Physics 54, no. 14 (April 13, 2016): 1415–26. http://dx.doi.org/10.1002/polb.24061.

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43

Nguyen, Le-Thu T., Thuy Thu Truong, Ha Tran Nguyen, Lam Le, Viet Quoc Nguyen, Thang Van Le, and Anh Tuan Luu. "Healable shape memory (thio)urethane thermosets." Polymer Chemistry 6, no. 16 (2015): 3143–54. http://dx.doi.org/10.1039/c5py00126a.

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(Thio)urethane networks combining SM properties and self-healability under mild temperature conditions via the DA chemistry were developed. The effect of various network architectures in SM-aided scratch healing was evaluated.

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44

Zhou, Huankai, Hongsheng Luo, Xingdong Zhou, Huaquan Wang, Yangrong Yao, Wenjing Lin, and Guobin Yi. "Healable, Flexible Supercapacitors Based on Shape Memory Polymers." Applied Sciences 8, no. 10 (September 25, 2018): 1732. http://dx.doi.org/10.3390/app8101732.

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Supercapacitors as novel and efficient energy storage devices could provide a higher power density and energy density compared to other electronics and devices. However, traditional supercapacitors are readily damaged, which leads to degraded performance or even failure. To make them more durable and efficient, healable flexible shape memory-based supercapacitors were unprecedentedly explored by a transfer process, in which the conductive nano-carbon networks were decorated with pseudocapacitance materials, followed by embedding them into a shape memory polymer matrix containing healing reagents. The composite exhibited flexibility, supercapacitance and self-healing capability originating from the shape memory effect and healing reagent. The morphologies, thermal, mechanical and capacitive properties, and the self-healability of the composite were investigated. In particular, the influence of the compositions on the healing efficiency was considered. The optimized composite exhibited good capacitance (27.33 mF cm−1), stability (only 4.08% capacitance loss after 1500 cycles) and healable property (up to 93% of the healing efficiency). The findings demonstrated how to endow the flexible polymeric electronics with healable bio-mimetic properties and may greatly benefit the application of intelligent polymers in the field of multi-functional electrical materials.

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45

Hassan, M. R., M. Mehrpouya, Sattar Emamian, and M. N. Sheikholeslam. "Review of Self-Healing Effect on Shape Memory Alloy (SMA) Structures." Advanced Materials Research 701 (May 2013): 87–92. http://dx.doi.org/10.4028/www.scientific.net/amr.701.87.

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Self-healing has usually an emphasis on special materials that is metallic materials. When there is a minor damage, almost all biological organisms, even complex ones, have the ability to repair themselves. Recently, a novel field of materials science is constituted by self-healing in organic materials or material systems and it is rapidly expanding. These materials have a particular ability to heal themselves. The initial crack is healed to the point that upon reloading, a new crack is formed next to the original, rather than the original crack reopening. Only simple heating can reverse transformation and cause reinforcement for these cracks. The shape memory alloy wires are activated by heating the system and therefore the healing begins. Due to the heat, the wires relapse to their original shape at the shape change in martensite to austenite transition temperature. The concentration of most of the studies so far has been on polymers and ceramics and the reason is that it includes self-healing in non-metallic materials. Also, they are more convenient than including it in metallic materials. In this review paper the design principles of self-healing materials and their improvement methods are investigated.

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Sun, Siqin, Chaoxian Chen, Jianghong Zhang, and Jianshe Hu. "Biodegradable smart materials with self-healing and shape memory function for wound healing." RSC Advances 13, no. 5 (2023): 3155–63. http://dx.doi.org/10.1039/d2ra07493a.

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(A) SMPs suture for the wound; (B) schematic process of the SMPs; (C) illustration picture of the construction of the SMPs ; (D) the network structure of the SMPs; (E) the 1H NMR spectrum of the monomer MBC, initiator, and elastomer P2.

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47

Nji, Jones, and Guoqiang Li. "A biomimic shape memory polymer based self-healing particulate composite." Polymer 51, no. 25 (November 2010): 6021–29. http://dx.doi.org/10.1016/j.polymer.2010.10.021.

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Neuser, S., V. Michaud, and S. R. White. "Improving solvent-based self-healing materials through shape memory alloys." Polymer 53, no. 2 (January 2012): 370–78. http://dx.doi.org/10.1016/j.polymer.2011.12.020.

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Feng, Xianqi, Gongzheng Zhang, Bo Xu, Haoyang Jiang, Quanming Bai, and Huanjun Li. "Self-healing elastomer assembly towards three-dimensional shape memory devices." RSC Advances 5, no. 86 (2015): 70000–70004. http://dx.doi.org/10.1039/c5ra13537k.

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Wang, Luntao, Leping Deng, Dawei Zhang, Hongchang Qian, Cuiwei Du, Xiaogang Li, Johannes M. C. Mol, and Herman A. Terryn. "Shape memory composite (SMC) self-healing coatings for corrosion protection." Progress in Organic Coatings 97 (August 2016): 261–68. http://dx.doi.org/10.1016/j.porgcoat.2016.04.041.

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