摘要
以马来海松酸酐为原料,通过与多元胺(二乙烯三胺、三乙烯四胺、四乙烯五胺)进行酰胺化反应,合成了3种环氧树脂固化剂马来海松酸酐聚酰胺,分别命名为聚酰胺样品Ⅰ、聚酰胺样品Ⅱ、聚酰胺样品Ⅲ。利用傅里叶红外光谱仪(FT-IR)、热重分析仪(DTA)、拉力机等分析测试手段,对环氧树脂/马来海松酸酐聚酰胺体系固化产物的特征性能进行了表征。结果表明,环氧树脂分别与3种聚酰胺样品按理论质量配比100∶51、100∶45、100∶45混匀后,在室温放置6 h后再于80℃固化4 h,可完全固化,环氧树脂/聚酰胺样品Ⅰ剪切强度可达21.6 MPa,3种固化体系热分解温度均大于300℃,可望在对剪切强度、耐热等级要求较高的固化剂领域得到广泛应用。
Three kinds of curing agents for epoxy resin polyamides,which named polyamide sampleⅠ,polyamide sampleⅡ,polyamide sample Ⅲ,were prepared from maleopimaric acid anhydride by amidation with polyamines（including diethylenetriamine,triethylenetetramine and tetraethylenepentamine）.Properties of the cured products of epoxy resin/polyamides were characterized by FT-IR,TGA and tensile tester.It was found that epoxy resin can be cured completely with polyamides at temperature of 25 ℃ for 6 h,and then at temperature of 80 ℃ for cured 4 h using a theoretical mass ratios of 100∶51,100∶45,100∶45,respectively.The shear strength of the cured product of epoxy resin/polyamide sampleⅠreached to 21.6 MPa,the thermal decomposition temperatures of the three cured systems were over 300 ℃.The polyamides would have a wide applications in higher shear strength and heat-resistance products.
出处
《生物质化学工程》
CAS
2011年第3期21-26,共6页
Biomass Chemical Engineering
基金
国家863计划资助(2009AA05Z437)
国家自然科学基金资助项目(30700634)
关键词
环氧树脂
马来海松酸酐
二乙烯三胺
三乙烯四胺
四乙烯五胺
epoxy resin
maleopimaric acid anhydride
diethylenetriamine
triethylenetetramine
tetraethylenepentamine
