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首页> 外文期刊>Journal of Applied Polymer Science >Toughening of Cyanate Ester Resin by N-Phenylmaleimide-Styrene Copolymers
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Toughening of Cyanate Ester Resin by N-Phenylmaleimide-Styrene Copolymers

机译：N-苯基马来酰亚胺-苯乙烯共聚物对氰酸酯树脂的增韧

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摘要

The N-phenylmaleimide-styrene copolymer (PMS) was prepared and used to improve the brittleness of the cyanate ester resin.PMS was an effective modifier for improving the brittleness of the resin.The morphologies of the modified resins depended on PMS molecular weight and content.The most effective modification of the cyanate ester resin was attained because of the cocontinuous phase structure of the modified resin.Inclusion of 10 wt % PMS (M_w 133,000) led to an 160% increase in the fracture toughness (K_(IC) for the modified resin with a slight loss of flexural strength and retention of flexural modulus and the glass transition temperature,compared to the values for the unmodified resin.Low water absorptivity of the parent-cured resin was not deteriorated by modification.The toughening mechanism was discussed in terms of the morphological and dynamic viscoelastic behaviors of the modified cyanate ester resin system.
机译：制备了N-苯基马来酰亚胺-苯乙烯共聚物（PMS）并用于改善氰酸酯树脂的脆性，PMS是改善树脂脆性的有效改性剂，改性树脂的形态取决于PMS分子量和含量由于改性树脂的共连续相结构，使氰酸酯树脂获得了最有效的改性。加入10 wt％的PMS（M_w 133,000）可使断裂韧性（K_（IC））提高160％与未改性树脂的值相比，抗弯强度和弯曲模量和玻璃化转变温度的损失略有下降。改性不会使母体固化树脂的低吸水率变差。讨论了增韧机理改性氰酸酯树脂体系的形态和动态粘弹性行为。

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