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通过一步法得到了力学性能优异的碳纳米管(CNT)改性的聚癸二酸甘油酯纳米复合材料。将CNT分散在甘油中后与癸二酸进行缩聚反应,通过改变碳纳米管的添加量、癸二酸与甘油之间的配比以及固化时间得到了一系列的聚酯纳米复合材料。结果表明:CNT能明显的提高弹性体的强度和硬度,该纳米复合材料具有优异的力学性能,同时研究了CNT对玻璃化转变温度和凝胶含量等影响,并通过扫描电镜观察材料断面形貌,可以发现一定量的碳纳米管可以较均匀地分散在聚合物中。
The carbon nanotubes (CNT) modified poly (sebacate) nanocomposites with excellent mechanical properties were obtained by one-step method. After dispersing CNT in sebacic acid, polycondensation reaction of sebacic acid and CNTs was carried out. A series of polyester nanocomposites were obtained by changing the amount of carbon nanotubes, the ratio of sebacic acid to glycerol and the curing time. The results show that CNT can significantly improve the strength and hardness of the elastomer. The nanocomposites have excellent mechanical properties. At the same time, the influence of CNT on the glass transition temperature and gel content is also studied. The morphology of the material is observed by scanning electron microscopy , It can be found that a certain amount of carbon nanotubes can be more evenly dispersed in the polymer.