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	合成橡胶工业 CHINA SYNTHETIC RUBBER INDUSTRY 2010 Vol.33 No.2 P.131-134

炭黑填充胶热导率模型的推导及应用

何燕　李海涛　马连湘　

摘　要：研究了炭黑填充胶复合材料的传热机理;基于最小热阻力法则和比等效导热系数相等法则,建立了热传导模型,并推导出热导率计算方程;用该方程分别估算了炭黑N 234和N 539填充胶的热导率,并与实验结果进行比较.结果表明,当炭黑体积分数低于20%时,热导率的预测值与实验值有较好的一致性;随着炭黑填充量的增加,炭黑填充胶的热导率逐渐增加;填充量相同时,N 234填充胶的热导率大于N 539填充胶,体积分数越低,两者的热导率相差越小,反之则越大.
关键词：炭黑;热导率;填充胶;导热模型
分类号：TQ330.38　文献标识码：B
文章编号：1000-1255(2010)02-0131-04

Derivation and application of thermal conductivity model of carbon black filled rubber

He Yan（College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China）　 Li Haitao（College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China）　 Ma Lianxiang（College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China）　

Abstract：The heat transfer mechanism of carbon black filled rubber was studied. Thermal conductivity model was established based on the laws of minimal thermal resistance and specific equivalent thermal conductivity coefficient. An equation for the thermal conductivity was derived, by which the thermal conductivities of two types of rubber filled with carbon black N 234 and N 539 were estimated respectively, and the obtained results were compared with experimental ones. The results showed that the estimated thermal conductivities were of the same as the experimental ones when the volume fraction of carbon black filled was less than 20%, and the thermal conductivity of filled rubber increased with the increase of carbon black. The thermal conductivity of rubber filled with N 234 was larger than that of rubber filled with N 539 at the same filling amount. The difference of thermal conductivities of the two materials was smaller as the volume fraction of carbon black was lower, and vice versa.
Keywords：carbon black; thermal conductivity; filled rubber; thermal conductivity model

基金项目：国家自然科学基金资助项目(50773034);山东省自然科学基金资助项目(Y 2007 F 38);山东省教育厅科技计划资助项目(J 07 YA 14).
作者简介：何燕(1973-),女,博士,副教授.已发表论文30余篇.
作者单位：何燕（青岛科技大学,机电工程学院,山东,青岛266061）　
　　　　　李海涛（青岛科技大学,机电工程学院,山东,青岛266061）　
　　　　　马连湘（青岛科技大学,机电工程学院,山东,青岛266061）　

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收稿日期：2009年5月21日

修稿日期：2009年12月10日

出版日期：2010年3月15日