Academic literature on the topic 'Unsaturated polyester alkyds'

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Journal articles on the topic "Unsaturated polyester alkyds"

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Kaska, J., and F. Lešek. "Processes and equipment for alkyd and unsaturated polyester resin manufacture." Progress in Organic Coatings 19, no. 4 (November 1991): 283–331. http://dx.doi.org/10.1016/0033-0655(91)80016-c.

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Mironi-Harpaz, Iris, David Alperstein, Dafna Knani, and Moshe Narkis. "Curing of styrene-free unsaturated polyester alkyd: synthesis, characterization and simulation." Polymer International 59, no. 6 (March 9, 2010): 836–41. http://dx.doi.org/10.1002/pi.2796.

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Mahadi, M. B., I. M. Rasib, N. Z. Abas, M. A. Rahman, I. SH Azmi, and M. J. Jalil. "Selective epoxidation of the unsaturated fatty acids." IOP Conference Series: Materials Science and Engineering 1257, no. 1 (October 1, 2022): 012017. http://dx.doi.org/10.1088/1757-899x/1257/1/012017.

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Abstract Nowadays, epoxidized vegetable oils are of major significance since they are derived from renewable and sustainable natural resources and are eco-friendly. Epoxide is a crucial chemical precursor to produce alcohols, glycols, and polymers such as polyester and epoxy resin. Oleic acid’s long alkyl chain including an unsaturated double bond (C=C) makes it an appealing fatty acid for producing eco-friendly epoxide. The epoxidation of unsaturated fatty acid was accomplished by generating performic acid in situ to yield epoxidized oleic acid. The result of this reaction will be dihydroxystearic acid (DHSA). DHSA is one of the chemical precursors used to manufacture cosmetics. The optimal level of epoxidized unsaturated oleic acid was 82%.
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Spyros, A. "Characterization of unsaturated polyester and alkyd resins using one- and two-dimensional NMR spectroscopy." Journal of Applied Polymer Science 88, no. 7 (March 4, 2003): 1881–88. http://dx.doi.org/10.1002/app.11950.

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Mironi-Harpaz, I., M. Narkis, and A. Siegmann. "Curing of Styrene-Free Unsaturated Polyester Alkyd and Development of Novel Related Clay Nanocomposites." Macromolecular Symposia 242, no. 1 (October 2006): 201–7. http://dx.doi.org/10.1002/masy.200651028.

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Rozyanty, A. R., H. D. Rozman, and G. S. Tay. "Ultra-Violet Radiationcured Composites Based on Unsaturated Polyester Resin Filled with MMT and Kenaf Bast Fiber." Advanced Materials Research 264-265 (June 2011): 712–18. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.712.

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In this study, nanocomposites based on unsaturated polyester cured by ultra-violet (UV) radiation were prepared using Kenaf bast fibre and Montmorillonite (MMT) as reinforcing agent at different percentages. MMT was modified using an ion exchange process by replacing the sodium ions with alkyl ammonium ions from Cetyltrimethylammonium Bromide (CTAB). From the results obtained, the microstructure of MMT modified with CTAB (MMT-CTAB) showed the interlayer spacing of MMT-CTAB was increased and X-ray diffraction analysis indicated that cation exchange between CTAB and MMT was evident. As for the composites prepared from untreated MMT-CTAB, it showed higher mechanical properties as compared to those prepared from untreated MMT. On the other hand, the percentage of Kenaf fiber in the nanocomposites system also plays a crucial role in determining the nanocamposites properties.
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Danilov, Vladimir A., Oleg A. Kolyamshin, Nadezhda E. Temnikova, Oleg V. Stoyanov, and Marina V. Kolpakova. "MODIFICATION OF OLIGOESTER MALEINATE BY ALKYL ESTER OF N-MALEINIMIDOBENZOIC ACID." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 12 (December 8, 2019): 78–84. http://dx.doi.org/10.6060/ivkkt.20196212.6109.

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When using products from unsaturated polyester resins (NPS), often increased requirements for thermal and chemical resistance are raised. Increasing the thermal stability of the PS is possible due to the modification of resins by polymerization compounds, which can copolymerize with both oligoether maleinate and styrene. One of such effective additives is N-phenylmaleinimides. The paper presents the results of modification of unsaturated polyester grade PN-1 UT with alkyl ethers n-maleinimidobenzoic acid. The properties of terpolymers are investigated. The effect of substituents of the aromatic group with N-phenylmaleinimides on the properties of terpolymers was investigated. It is also of interest to study the effect of substituents of the aromatic group in N-phenylmaleinimide on the properties of modified polymers. It is shown that terpolymers due to their maleinimides are superior in strength and thermomechanical properties of the copolymers of oligoestermaleinate and styrene. The increase in the size of the hydrocarbon radical substituents of the aromatic group of maleinimides contributes to the increase of the thermo-and physico-mechanical properties of terpolymers. It is also shown that the glass transition temperature of polymers depends on the content of maleinimides, as well as on the structure of the aromatic group. With an increase in the content of maleinimides (up to 5 wt. %) there is an increase in the glass transition temperature and the beginning of the destructive flow. The greatest increase in glass transition temperature (30 °C) is observed at a content of 3 wt. % butyl ether of n-maleimidobenzoic acid. The increase in the length of the hydrocarbon radical (С5Н11 and С8Н17) of the ester group of n-maleimidobenzoic acid leads to the appearance of a plasticizing effect. Synthesized terpolymers can be recommended as binders in the production of heat-resistant composite materials, in particular, fiberglass.
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Tran, Thanh Duy, Ngan Thi Kim Nguyen, Mao Dang Nguyen, and Tai Tan Dang. "STRUCTURE AND PROPERTIES OF NANOCOMPOSITE MATERIAL FROM UNSATURATED POLYESTER AND POLY (ETHYLENE OXIDE) – MODIFIED CLAY." Science and Technology Development Journal 15, no. 2 (June 30, 2012): 35–44. http://dx.doi.org/10.32508/stdj.v15i2.1799.

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In recent years, polymer clay nanocomposites are attracting considerable interests in polymers science because of many advantages. There are many scientists having researched about this kind of material and demonstrated that when matrix polymer is added little weight of clay, properties of material is enhanced considerably. Because clay is a hydrophilic substance so it is difficult to use as filler in matrix polymer having hydrophobic nature, so clay needs to be modified to become more hydrophobic. In this study, Poly (Ethylene Oxide) was used as a new modifier for clay to replace some traditional ionic surfactants such as primary, secondary, tertiary, and quaternary alkyl ammonium or alkylphosphonium cations having disadvantages: disintegrate at high temperature, catalyze polymer degradation, and make nano-products colorific…. In order to evaluate modifying effect of Poly (Ethylene Oxide), modified clay products were characterized by X-ray spectrum. And then organoclay was used to prepare nanocomposite based on Unsaturated Polyester. Morphology and properties of nanocomposites were measured by X-ray diffraction, Transmission electron microscopy, tensile strength and thermal property. The results show that clay galleries changed to intercalated or exfoliated state in the nanocomposites. Properties of nanocomposites were (significantly improved) improved a lots when the loading of the organoclay was used at 1phr.
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Spyros, A. "Quantitative determination of the distribution of free hydroxylic and carboxylic groups in unsaturated polyester and alkyd resins by31P-NMR spectroscopy." Journal of Applied Polymer Science 83, no. 8 (December 18, 2001): 1635–42. http://dx.doi.org/10.1002/app.10069.

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Duy Thanh, Tran, Nguyen Dang Mao, Nguyen Thi Kim Ngan, Ha Thuc Chi Nhan, Ha Thuc Huy, and Anne-Cecile Grillet. "Study Structure and Properties of Nanocomposite Material Based on Unsaturated Polyester with Clay Modified by Poly(ethylene oxide)." Journal of Nanomaterials 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/841813.

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In recent years, polymer clay nanocomposites have been attracting considerable interests in polymers science because of their advantages. There are many scientists who researched about this kind of material and demonstrated that when polymer matrix was added to little weight of clay, properties were enhanced considerably. Because clay is a hydrophilic substance so it is difficult to use as filler in polymer matrix having hydrophobic nature, so clay needs to be modified to become compatible with polymer. In this study, poly(ethylene oxide) was used as a new modifier for clay to replace some traditional ionic surfactants such as primary, secondary, tertiary, and quaternary alkyl ammonium or alkylphosphonium cations having the following disadvantages: disintegrate at high temperature, catalyze polymer degradation, and make nanoproducts colorific, and so forth. In order to evaluate modifying effect of poly(ethylene oxide), modified clay products were characterize d by X-ray spectrum. Then organoclay was used to prepare nanocomposite based on unsaturated polyester. Morphology and properties of nanocomposites were measure d by X-ray diffraction, transmission electron microscopy, tensile strength, and thermal stability. The results showed that clay galleries changed to intercalated state in the nanocomposites. Properties of nanocomposites were improved a lot when the loading of the organoclay was used at 1 phr.
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Book chapters on the topic "Unsaturated polyester alkyds"

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"6. Unsaturated polyesters." In Polyester and Alkyd Resins, 151–64. Vincentz Network, 2020. http://dx.doi.org/10.1515/9783748602835-007.

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