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采用共价接枝的方法,将羧基、乙二胺(EDA)、二氨基二苯甲烷(DDM)、二氨基二苯醚(DDE)和对氨基苯甲酸(p-ABA)等官能团接枝到碳纳米管表面,制备了碳纳米管/氰酸酯复合材料,并研究了碳纳米管对氰酸酯树脂性能的影响.结果表明:与纯氰酸酯树脂体系相比,采用p-ABA修饰的碳纳米管/氰酸酯树脂复合材料其弯曲强度提高了17.6%,冲击强度提高了24.6%;碳纳米管的加入并未明显改变氰酸酯树脂的玻璃化转变温度,因此并不影响其作为耐高温材料的使用;凝胶点测试表明,碳纳米管的加入对氰酸酯树脂的固化有一定促进作用.
By covalent grafting, functional groups such as carboxyl, ethylenediamine (EDA), diaminodiphenylmethane (DDM), diaminodiphenyl ether (DDE) and p-aminobenzoic acid The effect of carbon nanotubes on the properties of cyanate ester resin was studied.The results show that compared with the pure cyanate ester resin system, the modification of p-ABA Of the CNTs / cyanate resin composites increased the flexural strength by 17.6% and the impact strength by 24.6%. The addition of carbon nanotubes did not significantly change the glass transition temperature of the cyanate resin and therefore did not affect its flexural strength As the use of high temperature materials; gel point test showed that the addition of carbon nanotubes on the curing of cyanate resin has a certain role in promoting.