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首页> 外文期刊>Journal of Applied Polymer Science >Controllable design of nanostructure in block copolymer reinforced epoxy composites
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Controllable design of nanostructure in block copolymer reinforced epoxy composites

机译：嵌段共聚物增强环氧复合材料中纳米结构的可控设计

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The modification of epoxy composites through the construction of nanostructures via the self-organization of block copolymers in epoxy has become a hot topic. In this research, polystyrene-b-poly(-caprolactone)-b-polydimethylsiloxane-b-poly(-caprolactone)-b-polystyrene (PS-PCL-PDMS-PCL-PS) block copolymers with different lengths of PS subchains were synthesized and incorporated into epoxy thermoset. Due to the difference in the length of PS subchains, two different sizes of core-shell nanostructures were obtained. When these two block copolymers were incorporated into epoxy, the tensile strength, elongation at break, damping temperature in range (tan >0.2), and storage modulus of the epoxy thermoset below 105 degrees C were simultaneously improved. Meanwhile, the effects of the lengths of PS subchains on the size of nanostructures and the relationship between microstructure and macroscopic properties of epoxy composites were systematically investigated. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46362.
机译：通过环氧树脂的自组织通过嵌段共聚物构建纳米结构的环氧复合材料的改性已成为热门话题。在该研究中，聚苯乙烯-B-聚（ - 己内酯）-B-聚二甲基硅氧烷-B-聚二甲基硅氧烷-B-聚二甲基 - 聚苯乙烯（PS-PCL-PDMS-PCL-PS）嵌段共聚物，具有不同长度的PS亚基的嵌段共聚物并掺入环氧树脂热固性。由于PS草中的差异，获得了两种不同尺寸的核 - 壳纳米结构。当将这两种嵌段共聚物掺入环氧树脂中时，抗拉强度，断裂处的伸长率，阻尼温度（棕褐色> 0.2），并同时提高了低于105℃以下的环氧热固性的储存模量。同时，系统地研究了PS亚丘的长度对纳米结构尺寸的影响和环氧复合材料的微观结构和宏观性质之间的关系。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46362。

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