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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and characterization of benzoxazine based nanocomposites: Comprehensive study in curing kinetics and enhanced thermal stabilities
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Preparation and characterization of benzoxazine based nanocomposites: Comprehensive study in curing kinetics and enhanced thermal stabilities

机译：苯并恶嗪基纳米复合材料的制备和表征：固化动力学和增强的热稳定性的综合研究

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摘要

Several bisphenol-A benzoxazine (BEN) based nanocomposites incorporated with several polyhedral oligomeric silsesquioxane (POSS), carbon nanotubes (CNTs), and clays, were prepared successfully. The influences of the nanofillers on curing kinetics, network formation, and thermal stability of the BEN were investigated comprehensively. The addition of the nanofillers showed different influence on curing kinetics of BEN. Furthermore, the incorporation of the nanofillers showed good improvement on thermal stability of BEN. An increase of 70 and 336 degrees C at the onset and the half-life decomposition temperature were observed with the addition of 5 wt % 30B clay in nitrogen atmosphere. With the incorporation of 5 wt % POSS, the half-life of decomposition and char yield enhanced by 280 degrees C and 13 wt % in nitrogen atmosphere. For the 4 wt % MWCNT-COOH/BEN nanocomposite, the half-life of decomposition and char yield at 800 degrees C increased by 286 degrees C and 14 wt % in nitrogen atmosphere, respectively. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41903.
机译：成功地制备了几种基于双酚A苯并恶嗪（BEN）的纳米复合材料，其中包含几种多面体低聚倍半硅氧烷（POSS），碳纳米管（CNT）和粘土。全面研究了纳米填料对BEN的固化动力学，网络形成和热稳定性的影响。纳米填料的添加对BEN的固化动力学表现出不同的影响。此外，掺入纳米填料显示出对BEN的热稳定性的良好改善。通过在氮气气氛中添加5 wt％的30B粘土，观察到开始和半衰期分解温度分别升高70和336摄氏度。通过掺入5重量％的POSS，在氮气气氛下分解的半衰期和炭的产率提高了280℃和13重量％。对于4 wt％的MWCNT-COOH / BEN纳米复合材料，在氮气氛下，800℃下的分解半衰期和炭产率分别增加了286℃和14 wt％。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41903。

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