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首页> 外文期刊>RSC Advances >Controlling nanodomain morphology of epoxy thermosets templated by poly(caprolactone)-block-poly(dimethylsiloxane)-block-poly(caprolactone) ABA triblock copolymer
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Controlling nanodomain morphology of epoxy thermosets templated by poly(caprolactone)-block-poly(dimethylsiloxane)-block-poly(caprolactone) ABA triblock copolymer

机译：聚己内酯-嵌段-聚（二甲基硅氧烷）-嵌段-聚己内酯ABA三嵌段共聚物为模板的环氧热固性塑料的纳米域形貌控制

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In this paper, triblock copolymer was incorporated into epoxy to prepare nano thermosets. After studying the compatibility between polydimethylsiloxane (PDMS), polycaprolactone (PCL) and bisphenol A epoxy resin (E-54), poly(caprolactone)–poly(dimethylsiloxane)–poly(caprolactone) (PCL-b-PDMS-b-PCL) triblock copolymer was incorporated into bisphenol A epoxy resin (E-54) and cured with DDS. A nano structure was formed and the size of the spherical phase became larger with increasing PCL-b-PDMS-b-PCL. According to the fact that TGDDM/PCL was compatible and TGDDM/PDMS was incompatible during the curing reaction, the mechanism of nano structure formation was self-assembly. The factors of influencing nano structure formation were discussed with regard to different curing temperatures and accelerators. Curing kinetics was utilized to study the effect of accelerator on nano structure formation.
机译：在本文中，将三嵌段共聚物掺入环氧树脂中以制备纳米热固性材料。在研究了聚二甲基硅氧烷（PDMS），聚己内酯（PCL）和双酚A环氧树脂（E-54），聚己内酯-聚二甲基硅氧烷-聚己内酯（PCL- b -PDMS- b -PCL）三嵌段共聚物被掺入双酚A环氧树脂（E-54）中并用DDS固化。随着PCL- b -PDMS- b -PCL的增加，形成了纳米结构，球形相的尺寸变大。根据固化反应过程中TGDDM / PCL相容，TGDDM / PDMS不相容这一事实，纳米结构的形成机理为自组装。关于不同的固化温度和促进剂，讨论了影响纳米结构形成的因素。利用固化动力学研究促进剂对纳米结构形成的影响。

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