| Kevlar－49芳纶纤维表面接枝改性 |
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| 引用本文： | 金士九,张春昕,王霞,余云照.Kevlar－49芳纶纤维表面接枝改性[J].高技术通讯,1994(7). |
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| 作者姓名： | 金士九 张春昕 王霞 余云照 |
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| 作者单位： | 中国科学院化学研究所 |
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| 摘 要： | 采用空气等离子体处理Ｋｅｖｌａｒ－４９并在活化处理后的纤维表面接枝聚丙烯酸（ＰＡＡ）、聚丙烯酸乙酯（ＰＥＡ）及丙烯酸和丙烯酸乙酯的共聚物（ＰＡＡ／ＥＡ）。单丝拔出实验研究表明，空气等离子体改性的Ｋｅｖｌａｒ－４９／环氧树脂体系的界面结合强度和界面破坏能均有明显提高，其中接枝了Ｐ（ＡＡ／ＥＡ）的Ｋｅｖｌａｒ－４９／环氧树脂体系的界面破坏能（５５Ｊ／ｍ２）比未改性体系的界面破坏能（２７．８Ｊ／ｍ２）提高了一倍。
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| 关 键 词： | Kevlar－49纤维，表面改性，等离子体处理 |
Surface Modification of Kevlar-49 by Plasmas Grafting Polymer |
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| Jin Shijiu, Zhang Chunxin, Wang Xia, Yu Yunzhao.Surface Modification of Kevlar-49 by Plasmas Grafting Polymer[J].High Technology Letters,1994(7). |
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| Authors: | Jin Shijiu Zhang Chunxin Wang Xia Yu Yunzhao |
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| Abstract: | Aramid fiber(Kevlar-49)surface was treated with air cold plasmas and poly acrylic acid(PAA),poly ethyl acrylate(PEA)and their copolymer(PAA-EA)were grafted onto its surface.Interfacialadhesion between aramid fibre and epoxy resin was studied through single fibre pull out tests.P(AA/EA)grafted fibers achieved optimum improvements,modified Kevlar-49/epoxy resin interfacial fracture energy increased from 28 J/m2 to 55 J/m2. |
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| Keywords: | Kevlar-49 fiber Surface modification Plasmas treatment |
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