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首页> 外文期刊>Journal of Applied Polymer Science >Bis[4-(4-maleimidephen-oxy)phenyl]propane/N,N-4,4'-Bismaleimidodiphenylmethyene Blend Modified with Diallyl Bisphenol A
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Bis[4-(4-maleimidephen-oxy)phenyl]propane/N,N-4,4'-Bismaleimidodiphenylmethyene Blend Modified with Diallyl Bisphenol A

机译：二烯丙基双酚A修饰的双[4-（4-马来酰亚胺苯氧基）苯基]丙烷/ N，N-4,4'-二苯甲基亚氨基二苯基甲基丙烯共混物

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摘要

In this article, 2,2'-bis[4-(4-maleimidephen-oxy)phenyl)]propane (BMPP) resin and N,N-4,4'-bismaleimidodiphenylmethyene (BDM) resin blends were modified by diallyl bisphenol A (DABPA). The effects of the mole concentration of BMPP on mechanical properties, fracture toughness, and heat resistance of the modified resins were investigated. Scanning electron microscopy was used to study the microstructure of the fractured modified resins. The introduction of BMPP resin improves the fracture toughness and impact strength of the cured resins, whose thermal stabilities are hardly affected. Dynamic mechanical analysis shows that the modified resins can maintain good mechanical properties at 270.0℃, and their glass transition temperatures (T_g) are above 280.0℃. When the mole ratio of BDM: BMPP is 2: 1(Code 3), the cured resin performs excellent thermal stability and mechanical property. Its T_g is 298℃, and the Charpy impact strength is 20.46 KJ/m~2. The plane strain critical stress intensity factor (K_(IC)) is 1.21 MPa·m~(0.5) and the plane strain critical strain energy release rate (G_(IC)) is 295.64 J/m~2. Compared with that of BDM/DABPA system, the K_(IC) and G_(IC) values of Code 3 are improved by 34.07% and 68.10%, respectively, which show that the modified resin presented good fracture toughness.
机译：在本文中，通过二烯丙基双酚A改性了2,2'-双[4-（4-（4-马来酰亚胺苯氧基）苯基）]丙烷（BMPP）树脂和N，N-4,4'-双马来酰亚胺基二苯甲基（BDM）树脂共混物（DABPA）。研究了BMPP的摩尔浓度对改性树脂的力学性能，断裂韧性和耐热性的影响。扫描电子显微镜用于研究断裂改性树脂的微观结构。 BMPP树脂的引入提高了固化树脂的断裂韧性和冲击强度，其热稳定性几乎不受影响。动态力学分析表明，改性树脂在270.0℃时可以保持良好的力学性能，玻璃化转变温度（T_g）高于280.0℃。当BDM∶BMPP的摩尔比为2∶1（代码3）时，固化的树脂表现出优异的热稳定性和机械性能。 T_g为298℃，夏比冲击强度为20.46 KJ / m〜2。平面应变临界应力强度因子（K_（IC））为1.21 MPa·m〜（0.5），平面应变临界应变能释放速率（G_（IC））为295.64 J / m〜2。与BDM / DABPA体系相比，Code 3的K_（IC）和G_（IC）值分别提高了34.07％和68.10％，表明改性树脂具有良好的断裂韧性。

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