CAJ | 학술논문

以偶联剂Si69原位改性法制备碳纳米管/纳米氧化铝/天然橡胶（NR）复合材料，对其性能进行探讨。结果表明：复合材料的动态力学性能优异，动态压缩生热较低；碳纳米管与纳米氧化铝并用对提高复合材料导热性能具有协同效应，复合材料的导热性能良好。碳纳米管和纳米氧化铝并用可以解决内部温升造成复合材料寿命缩短的问题。
이우련제Si69원위개성법제비탄납미관/납미양화려/천연상효（NR）복합재료，대기성능진행탐토。결과표명：복합재료적동태역학성능우이，동태압축생열교저；탄납미관여납미양화려병용대제고복합재료도열성능구유협동효응，복합재료적도열성능량호。탄납미관화납미양화려병용가이해결내부온승조성복합재료수명축단적문제。
The carbon nano-tube/nano-alumina/natural rubber composites were prepared and the properties of the composites were investigated. The fillers were in-situ modified by silane coupling agent Si69 during the preparation of the composites. The experimental results showed the composites possessed good dynamic mechanical properties and low heat build-up in the dynamic compression test. The carbon nano-tube and nanoalumina showed a synergistic effect on improvement of the thermal conductivity of the composites. For example, with 100 phr of nano alumina, the thermal conductivity increased by 120%, and with 5 phr of carbon nanotube, it increased by 23%;but when 100 phr of nano-alumina and 5 phr of carbon nano-tube were jointly used in the composite, an increased by 155%was achieved. Overall, the thermal conductivity of the composites was quite good. For the applications in which the service life of the natural rubber product was shortened due to the increase of internal temperature, combined addition of carbon nano-tube and nano-alumina was an effective solution.