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Effective thermal conductivity of three-phase styrene butadiene composites

机译:三相苯乙烯丁二烯复合材料的有效导热系数

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Transient plane source technique was used for the simultaneous measurement of thermal conductivity and thermal diffisivity of three-phase styrene butadiene rubber composites. Two series of styrene butadiene rubber composites were studied, having natural rubber as a variable filler in both the composites along with 10 phr of silica and clay, respectively. The measurements were done at room temperature and normal pressure. The experimental results show that there is a small variation in the thermal conductivity of both the composites with the filler (NR) fraction. It is interesting to note that the thermal conductivity shows a sharp decrease at 10 phr filler loading and then increases. The comparative study of these composites shows that the conductivity as well as the diffusivity of the silica reinforced composites is larger than that of the clay composites. The thermal conductivity of the filler NR has been evaluated using the Agari model. It has also been found that the composite with 40 phr of NR has the maximum thermal conductivity. (C) 2000 John Wiley & Sons, Inc. [References: 17]
机译:瞬态平面源技术用于同时测量三相丁苯橡胶复合材料的热导率和热扩散率。研究了两种系列的丁苯橡胶复合材料,其中两种橡胶中均含有天然橡胶作为可变填料,并分别含有10 phr的二氧化硅和粘土。在室温和常压下进行测量。实验结果表明,两种具有填料(NR)分数的复合材料的导热系数都有很小的变化。有趣的是,在10 phr填料载荷下,热导率显示出急剧下降,然后上升。对这些复合材料的比较研究表明,二氧化硅增强复合材料的电导率和扩散率比粘土复合材料大。填料NR的导热系数已使用Agari模型进行了评估。还已经发现,具有40phr的NR的复合材料具有最大的热导率。 (C)2000 John Wiley&Sons,Inc. [参考:17]

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