CAJ | 학술논문

首先对碳纳米管进行酸化处理,在聚氨酯合成过程中分别利用共混法和原位聚合法制备碳纳米管/聚氨酯复合材料,利用碳纳米管的性能对聚氨酯材料进行改性.利用傅立叶变换红外光谱分析仪研究了酸化对碳纳米管性能的影响,微机控制电子万能试验机、动态力学分析仪和数字超高电阻、微电流测量仪对碳纳米管聚氨酯复合材料力学、热力学和导电性能进行了研究,对比研究了两种制备方法对改善聚氨酯材料性能的不同影响.结果表明:通过两种方法制备的复合材料均可以提高聚氨酯材料的力学、热力学和导电性能,原位聚合法制备的复合材料在性能上的提高要比共混法更为明显有效.
수선대탄납미관진행산화처리,재취안지합성과정중분별이용공혼법화원위취합법제비탄납미관/취안지복합재료,이용탄납미관적성능대취안지재료진행개성.이용부립협변환홍외광보분석의연구료산화대탄납미관성능적영향,미궤공제전자만능시험궤、동태역학분석의화수자초고전조、미전류측량의대탄납미관취안지복합재료역학、열역학화도전성능진행료연구,대비연구료량충제비방법대개선취안지재료성능적불동영향.결과표명:통과량충방법제비적복합재료균가이제고취안지재료적역학、열역학화도전성능,원위취합법제비적복합재료재성능상적제고요비공혼법경위명현유효.
Carbon nanotubes and polyurethane composites were prepared via blending and in situ polymerization to modify the properties of polyurethane. Fourier transform infrared spectroscopy (FT-IR) measurement was employed to assess the influence of acid treatment on carbon nanotubes. Mechanical, thermal and electoral conductivity prop-erties of composites were charactered by tensile tester machine, dynamic mechanical analysis (DMA) and ohmme-ter to investigate the difference influence of preparation via blending and in situ polymerization on the modification to polyurethane. It indicated that carbon nanotubes could improve the mechanical, thermal and electoral conductivi-ty properties of polyurethane, and the composites prepared via in situ polymerization could improve the properties of polyurethane more significantly compared to the composites prepared via blending.