摘要
通过原位聚合的方法合成了聚对苯二甲酸乙二醇酯(PET)/Ti3N4纳米复合材料。通过多功能内耗仪和动态力学分析仪(DMA)对该纳米复合材料的蠕变及动态力学性能进行了测试分析,结果表明,随纳米粒子含量的增加,复合材料的蠕变能力降低,内耗峰的峰高具有相同的变化趋势,当纳米Ti3N4添加量增加至3%时,其蠕变能力和内耗峰高分别降低为纯PET的7.1%和11.9%。但复合材料的储能模量较纯PET高,因此该复合材料有望在工程材料领域得到应用。
Polyethylene terephthalate （PET）/Ti3N4 nanocomposites were synthesized by in situ polymerization. The relaxation behavior of neat PET and PET/Ti3N4 nanocomposites was investigated by dynamic mechanical analysis（DMA） and creep method. The results show that with the content of filled nanoparticles for nanocomposites increasing, the peak heights of the a relaxation gradually increase, and the trends are in accordance with creep curves. While the content of filled nanoparticles increases to 3%, the creep strength and peak height of internal friction reduce to 7.1% and 11.9 % of those of neat PET, respectively. The storage modulus is higher than that of neat PET. Therefore, the nanocomposites are expected to be applied in the field of engineering materials.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2013年第12期39-42,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(11074254)
