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首页> 外文期刊>Journal of Applied Polymer Science >Design of the phthalonitrile-based composite laminates by improving the interfacial compatibility and their enhanced properties
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Design of the phthalonitrile-based composite laminates by improving the interfacial compatibility and their enhanced properties

机译：通过改善界面相容性和增强性能来设计酞泊基的复合层压材料

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摘要

Phthalonitrile containing benzoxazine (BA-ph) and cyanate ester (CE) were chosen as the thermosetting matrix and the glass fiber (GF) reinforced laminates formed at low temperature were designed. The polyarylene ether nitriles containing pendent carboxyl groups (CPEN) was selected to modify the interfacial interaction between the resin matrix and GFs. Two methods of introducing CPEN were compared and the effects of CPEN on curing behaviors and properties of the composites were investigated. Results showed that with the CPEN, exothermic peaks shifted to lower temperature and curing temperatures of BA-ph/CE decreased slightly. The mechanical and thermal properties of GF-reinforced composites were discussed and the results indicated that the composites of modified GFs with CPEN exhibited outstanding mechanical properties, higher glass transition temperature (T-g > 290 degrees C) than that of composites composed of CPEN mixed with BA-ph/CE. Moreover, GF-reinforced composites showed stable dielectric constants (3.8-4.5) and low dielectric loss (0.005-0.01), which were independent of the frequency. In sum, the various methods of the introduction of CPEN in the GF-reinforced composites may provide a new route to prepare improved composites, meanwhile, composites with outstanding processability and excellent mechanical and thermal properties are expected to be widely applied in the fields of high-performance structural materials. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45881.
机译：选择含有苯并恶嗪（Ba-pH）和氰酸酯（Ce）的邻苯二甲腈作为热固性基质，设计在低温下形成的玻璃纤维（GF）增强层压物。选择含有骨羧基（CPEN）的聚亚芳基醚腈，以改变树脂基质和GFS之间的界面相互作用。比较了两种引入CPE的方法，研究了CPEN对复合材料的固化行为和性质的影响。结果表明，利用CPEN，放热峰移至较低的温度和Ba-pH / Ce的固化温度略微下降。讨论了GF增强复合材料的机械和热性能，结果表明，具有CPEN的改性GFS的复合材料表现出优异的机械性能，比由与BA混合的CPEN组成的复合材料的玻璃化转变温度（Tg> 290℃）的复合材料-ph / ce。此外，GF增强复合材料显示稳定的介电常数（3.8-4.5）和低介电损耗（0.005-0.01），其与频率无关。总之，在GF增强复合材料中引入CPE的各种方法可以提供新的制备改进复合材料的新途径，同时，预计具有出色的可加工性和优异的机械和热性能的复合材料将被广泛应用于高处的领域 - 形态结构材料。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,45881。

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  • 作者

    Ren Dengxun; Lei Yangxue; Pan Hai; Yan Liang; Xu Mingzhen; Liu Xiaobo;

  • 作者单位

    Univ Elect Sci &

    Technol China High Temp Resistant Polymers &

    Composites Key Lab Sch Microelect &

    Solid State Elect Chengdu 610054 Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China High Temp Resistant Polymers &

    Composites Key Lab Sch Microelect &

    Solid State Elect Chengdu 610054 Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China High Temp Resistant Polymers &

    Composites Key Lab Sch Microelect &

    Solid State Elect Chengdu 610054 Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China High Temp Resistant Polymers &

    Composites Key Lab Sch Microelect &

    Solid State Elect Chengdu 610054 Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China High Temp Resistant Polymers &

    Composites Key Lab Sch Microelect &

    Solid State Elect Chengdu 610054 Sichuan Peoples R China;

    Univ Elect Sci &

    Technol China High Temp Resistant Polymers &

    Composites Key Lab Sch Microelect &

    Solid State Elect Chengdu 610054 Sichuan Peoples R China;

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  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    copolymers; crosslinking; manufacturing; ring-opening polymerization;

    机译：共聚物;交联;制造;开环聚合;

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