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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and evaluation of nano-epoxy composite resins containing electrospun glass nanofibers
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Preparation and evaluation of nano-epoxy composite resins containing electrospun glass nanofibers

机译：含电纺玻璃纳米纤维的纳米环氧复合树脂的制备与评价

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In this study, electrospun glass (structurally amorphous SiO _2) nanofibers (EGNFs) with diameters of a 400 nm were incorporated into epoxy resin for reinforcement and/or toughening purposes; the effects of silanization treatment (including different functional groups in silane molecules) and mass fraction of EGNFs on strength, stiffness, and toughness of the resulting nano-epoxy composite resins were investigated. The experimental results revealed that EGNFs substantially outperformed conventional glass fibers (CGFs, with diameters of a 10 ?) in both tension and impact tests, and led to the same trend of improvements in strength, stiffness, and toughness at small mass fractions of 0.5 and 1%. The tensile strength, Young's modulus, work of fracture, and impact strength of the nano-epoxy composite resins with EGNFs were improved by up to 40, 201, 67, and 363%, respectively. In general, the silanized EGNFs with epoxy end groups (G-EGNFs) showed a higher degree of toughening effect, while the silanized EGNFs with amine end groups (A-EGNFs) showed a higher degree of reinforcement effect. The study suggested that electrospun glass nanofibers could be used as reinforcement and/or toughening agent for making innovative nano-epoxy composite resins, which would be further used for the development of high-performance polymer composites.
机译：在这项研究中，将直径为400 nm的电纺玻璃（结构无定形SiO _2）纳米纤维（EGNF）掺入环氧树脂中以增强和/或增韧。研究了硅烷化处理（包括硅烷分子中不同的官能团）和EGNFs的质量分数对所得纳米环氧复合树脂强度，刚度和韧性的影响。实验结果表明，在拉伸和冲击试验中，EGNFs的性能明显优于常规玻璃纤维（CGF，直径为10？），并且在质量分数为0.5和0.5的情况下，强度，刚度和韧性得到了改善的相同趋势。 1％。含EGNF的纳米环氧复合树脂的拉伸强度，杨氏模量，断裂功和冲击强度分别提高了40％，201％，67％和363％。通常，带有环氧基端基的硅烷化EGNF表现出较高的增韧效果，而带胺端基的硅烷化EGNF表现出更高的增强效果。研究表明，电纺玻璃纳米纤维可以用作增强剂和/或增韧剂，用于制造创新的纳米环氧复合树脂，并将其进一步用于开发高性能聚合物复合材料。

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