高能电子束辐射对硼酚醛树脂的影响  

EFFECT OF ELECTRON BEAM RADIATION ON THE BORON PHENOLIC RESIN

作　　者：王秀飞[1] 黄启忠[1] 高莹[1] 刘立海[1] 苏哲安[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083

出　　处：《炭素技术》2007年第6期21-24,共4页Carbon Techniques

基　　金：国家重点基础研究发展计划(973计划)资助项目(2006CB600901)

摘　　要：对硼酚醛树脂进行了高能电子束辐射,并进行了差热分析、热失重分析、残炭率和炭化后的粉末电阻率测试。结果表明:硼酚醛树脂辐射前在100—200℃之间有一个明显的吸热反应峰,固化温度范围较大;而经过辐射后,100—300℃反应峰较少,硼酚醛树脂的固化温度范围明显减小,且固化温度降低。炭化后粉末电阻率由辐射前的3899.6μΩ·m显著提高为辐射后的4951.6μΩ·m;残炭率由60.6%降低为58.1%。The boron phenolic resin was radiated by the high energy electron beam in this article. The comparison performance of the boron phenolic resin before and after the radiation was investigated with the differential thermal analysis, thermal - gravimetric analysis, carbon yield and resistivity. The results show before the radiation of boron phenolic resin, an obvious endothermic reaction peak is located between 100-200℃ and the curing temperature scope is wide. But after the radiation, the reaction peaks are less between 100-300℃, the scope of curing temperature is obviously shorten and the curing temperature is declined in the boron phenolic resin too The resistivity of the carbonized powder improves from 3899. 6 μΩ· m before radiation to 4951.6μΩ· m after radiation and the remained carbon ratio decreases from 60. 6% to 58.1%.

关 键 词：硼酚醛树脂 高能电子柬 辐射 残炭率 差热分析 

分 类 号：O613.81[理学—无机化学] TQ323.1[理学—化学]