摘要
研究了端羟基聚醚砜(PES-OH)含量对双马来酰亚胺三元共聚树脂性能的影响。研究结果表明:PES-OH含量变化对固化反应、热稳定性和热机械性能无明显影响,热分解温度均在415℃左右,玻璃化转变温度均在285℃以上;随着PES-OH含量的增加,固化树脂的力学性能均呈现先增加后减小的趋势,且当PES-OH含量为10%时,断裂伸长率为3.1%,相比于未增韧时提升了72%,同时拉伸强度和弯曲强度分别提高了40%和27%。
The effect of mass concentration of polyethersulfone with phenolphthalein(PES-OH)on the properties of the bismaleimide resins were investigated.The results indicated that there were no significant effects of mass concentration of PES-OH on their curing behavior,heat resistance and dynamic thermo-mechanical properties with the thermal decomposition temperature about 415℃and the glass transition temperature above 285℃;the mechanical properties of the resins increased firstly and then decreased with the increase of PES-OH.When the proportion of PES-OH was 10%,the elongation was 3.1%,increased by 72%.In addition,the tensile strength and flexural strength were increased by 40%and 27%,respectively.
作者
刘思扬
马秀萍
赵振宁
吴凡
张承双
霍炳呈
LIU Si-yang;MA Xiu-ping;ZHAO Zhen-ning;WU Fan;ZHANG Cheng-shuang;HUO Bing-cheng(Xi’an Aerospace Composites Research Institute,Xi’an 710025,Shaanxi,China)
出处
《合成材料老化与应用》
2021年第1期11-13,共3页
Synthetic Materials Aging and Application
基金
大尺寸碳纤维复合材料壳体结构隔热一体化成型基础问题(U1837601)。
关键词
端羟基聚醚砜
双马来酰亚胺
热性能
力学性能
polyethersulfone with phenolphthalein
bismaleimide
thermal properties
mechanical properties
