环氧树脂因韧性差而限制了其在高端领域的应用,为了改善环氧树脂的韧性同时改善环氧树脂的热稳定性,将长径比不同的多壁碳纳米管(MWNTs)进行酸化,对蒙脱土(MMT)进行有机化处理,将MWNTs和MMT共掺杂环氧树脂通过溶液共混法制备三相环氧树脂纳米复合材料。结果表明,当碳纳米管质量分数为1%时,C-MWNTs40-60/O-MMT/EP和C-MWNTs10-20/O-MMT/EP环氧树脂纳米复合材料的冲击强度比未改性的环氧树脂分别提高了107.1%、127.9%,热分解温度比未改性的环氧树脂高20℃、21℃,马丁耐热温度比未改性的环氧树脂高12.4℃、13.8℃。
Epoxy resin can not be used in high-end application because of its poor toughness.In order to solve the problem and increase the thermal properties of epoxy resin,it was presented that the multi walled carbon nanotubes (MWNTs) with different aspect ratios and montmorillonite (MMT) were treated by acidification and organic treatment respectively.The MWNTs,MMT and epoxy resin were prepared into three-phase epoxy nanocomposite by solution blending method.Results showed that when the carbon nanotubes content was 1(wt)%,the impact strength of C-MWNTs40-60/O-MMT/EP and C-MWNTs10-20/O-MMT/EP were 107.1%,127.9% higher than that of unmodified epoxy resin.The thermal decomposition temperature of C-MWNTs40-60/O-MMT/EP and C-MWNTs10-20/O-MMT/EP were 20℃,21℃ higher than that of unmodified epoxy resin.Martin heat resistant temperature of C-MWNTs40-60/O-MMT/EP and C-MWNTs10-20/O-MMT/EP were 12.4℃,13.8℃ higher than that of unmodified epoxy resin.
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基金资助
黑龙江省博士后面上项目一等资助(LBH-Z16089);中国博士后面上项目一等资助(2017M610212);工程电介质及其应用教育部重点实验室前沿项目预研基金(2018EDAQY05);哈尔滨市科技创新人才(2017RAQXJ105);黑龙江省普通本科高等学校青年创新人才培养计划
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