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Polybenzoxazine thermosets with enhanced toughness via blending with phthalazinone‐bearing thermal plastic copoly(aryl ether nitrile)s
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-09-30 , DOI: 10.1002/app.48508 Lishuai Zong 1 , Jinlong Li 1 , Cheng Liu 1 , Yuan Zu 1 , Nan Li 1 , Jinyan Wang 1 , Xigao Jian 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-09-30 , DOI: 10.1002/app.48508 Lishuai Zong 1 , Jinlong Li 1 , Cheng Liu 1 , Yuan Zu 1 , Nan Li 1 , Jinyan Wang 1 , Xigao Jian 1
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Matrix resin with excellent toughness finds extensive applications in structural material fields recently. In this article, phthalazinone‐bearing copoly(biphenyl ether nitrile) (PPBEN) was synthesized, followed by solution blending with commercial benzoxazine resins to enhance their toughness. The relationship between loading amount of PPBEN and combined performance of the blend system was systematically detected via the characterization of their curing behavior, thermal properties, mechanical properties, and surface morphology. The results indicated that the presence of PPBEN significantly improved the impact strength of polybenzoxazine (PBOZ) when with 10% PPBEN loading, the impact strength of PPBEN/PBOZ blends was 202% higher than that of neat PBOZ. Simultaneously, the blending system maintained a commendable flexural strength, modulus, glass transition temperature, and thermal stability. The morphology study suggested that PPBEN microparticles dispersing uniformly in bulk played an important role in releasing external energy and were responsible for final toughness during impact process. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48508.
中文翻译：
通过与含酞嗪酮的热塑性塑料共聚（芳基醚腈）共混，可增强韧性的聚苯并恶嗪热固性塑料
具有优异韧性的基体树脂最近在结构材料领域中得到了广泛的应用。在本文中，合成了含酞嗪酮的共聚（联苯醚腈）（PPBEN），然后将其与市售的苯并恶嗪树脂进行溶液共混以提高其韧性。通过表征其固化性能，热性能，机械性能和表面形态，系统地检测了PPBEN的负载量与共混体系综合性能之间的关系。结果表明，PPBEN的存在显着提高了聚苯并恶嗪（PBOZ）的冲击强度，当PPBEN含量为10％时，PPBEN / PBOZ共混物的冲击强度比纯PBOZ高202％。同时，共混体系保持了值得称道的抗弯强度，模量，玻璃化转变温度和热稳定性。形态学研究表明，均匀散装的PPBEN微粒在释放外部能量方面起着重要作用，并且对冲击过程中的最终韧性起着重要作用。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学2020，137，48508。
更新日期：2019-12-22
中文翻译：
通过与含酞嗪酮的热塑性塑料共聚（芳基醚腈）共混，可增强韧性的聚苯并恶嗪热固性塑料
具有优异韧性的基体树脂最近在结构材料领域中得到了广泛的应用。在本文中，合成了含酞嗪酮的共聚（联苯醚腈）（PPBEN），然后将其与市售的苯并恶嗪树脂进行溶液共混以提高其韧性。通过表征其固化性能，热性能，机械性能和表面形态，系统地检测了PPBEN的负载量与共混体系综合性能之间的关系。结果表明，PPBEN的存在显着提高了聚苯并恶嗪（PBOZ）的冲击强度，当PPBEN含量为10％时，PPBEN / PBOZ共混物的冲击强度比纯PBOZ高202％。同时，共混体系保持了值得称道的抗弯强度，模量，玻璃化转变温度和热稳定性。形态学研究表明，均匀散装的PPBEN微粒在释放外部能量方面起着重要作用，并且对冲击过程中的最终韧性起着重要作用。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学2020，137，48508。
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