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碳纳米管/纳米氧化铝/天然橡胶复合材料的性能研究 |
Properties of Carbon Nano-tube/Nano-alumina/Natural Rubber Composites |
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DOI: |
中文关键词: 碳纳米管 纳米氧化铝 天然橡胶 复合材料 动态力学性能 导热性能 协同效应 |
英文关键词: carbon nano-tube nano-alumina natural rubber composite material dynamic mechanical property thermal conductivity synergistic effect |
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中文摘要: |
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。 |
英文摘要: |
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. |
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