A Review on Styrene Substitutes in Thermosets and Their Composites
A Review on Styrene Substitutes in Thermosets and Their Composites
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DOI：
10.3390/polym11111815
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发表时间：
2019-11
期刊：
影响因子：
5
通讯作者：
Yuchao Wu;M. Fei;R. Qiu;Wendi Liu;Jianhui Qiu
中科院分区：
文献类型：
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作者：
Yuchao Wu;M. Fei;R. Qiu;Wendi Liu;Jianhui Qiu
近几十年来，热固性塑料及其复合材料受到了极大的关注和技术发展。不饱和双键固化体系的热固性树脂和复合材料因其用途广泛而备受关注。为了进一步开发此类树脂，通常掺入具有不饱和位点的反应性稀释剂（RD）以改善其可加工性和机械性能。传统的RD，苯乙烯，是一种有毒的挥发性有机化合物，也是美国国家卫生研究院警告的预期致癌物之一。在热固性塑料及其复合材料的生产中，人们对减少苯乙烯的使用量做了大量的努力，但很少有文献对这些文献进行系统的总结。本文综述了热固性塑料及其复合材料中苯乙烯替代物的研究进展。详细讨论了潜在的苯乙烯替代品，如苯和（甲基）丙烯酸酯的乙烯基衍生物。重点介绍了通过在可再生原料如碳水化合物、木质素和脂肪酸上接枝不饱和官能团来开发新型RD单体的策略。本文还重点介绍了RD单体的发展和特点，以及它们对热固性材料和复合材料的加工性能和力学性能的影响。
In recent decades, tremendous interest and technological development have been poured into thermosets and their composites. The thermosets and composites with unsaturated double bonds curing system are especially concerned due to their versatility. To further exploit such resins, reactive diluents (RDs) with unsaturated sites are usually incorporated to improve their processability and mechanical properties. Traditional RD, styrene, is a toxic volatile organic compound and one of the anticipated carcinogens warned by the National Institute of Health, USA. Most efforts have been conducted on reducing the usage of styrene in the production of thermosets and their composites, while very few works have systematically summarized these literatures. Herein, recent developments regarding styrene substitutes in thermosets and their composites are reviewed. Potential styrene alternatives, such as vinyl derivatives of benzene and (methyl)acrylates are discussed in details. Emphasis is focused on the strategies on developing novel RD monomers through grafting unsaturated functional groups on renewable feedstocks such as carbohydrates, lignin, and fatty acids. This review also highlights the development and characteristics of RD monomers and their influence on processability and mechanical performance of the resulting thermosets and composites.