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鳞片石墨取向对鳞片石墨/聚丙烯、鳞片石墨/尼龙66复合材料导热性能的影响

, PP. 610-616

Keywords: 鳞片石墨,取向,聚丙烯,尼龙66,热导率,复合材料

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Abstract:

为了研究鳞片石墨在基体中的取向对复合材料导热性能特别是不同方向导热性能的影响,通过双螺杆挤出混合及注射成型制备了鳞片石墨/聚丙烯(PP)、鳞片石墨/尼龙66(PA66)导热复合材料,并利用扫描电子显微镜和超声波测试对制备的样品进行了分析。结果表明:鳞片石墨的粒径越小,平面取向度越高,平面与垂直方向的热导率差值越大。加工中双螺杆挤出机的过度剪切会破坏鳞片石墨的片层结构,影响鳞片石墨导热网络的形成,降低复合材料的热导率,但提高了材料导热的各向均匀性。适度的剪切可以打开鳞片石墨的片层结构,提高复合材料的热导率,注射成型更多影响到制品导热的各向异性。

References

[1]  林 锦, 张海燕, 洪浩群, 等. 碳包铝纳米粒子填充硅橡胶制备散热复合材料 [J]. 复合材料学报, 2011, 28(4): 46-51. Lin Jin, Zhang Haiyan, Hong Haoqun, et al. Preparation of silicone rubber heat dissipation composites filled by carbon coated aluminum nanoparticles [J]. Acta Materiae Compositae Sinica, 2011, 28(4): 46-51.
[2]  钟 毅, 尹建成, 潘晟旻. 微通道换热器研究进展 [J]. 制冷与空调, 2009, 9(5): 1-4. Zhong Yi, Yin Jiancheng, Pan Shengmin. Research progress of microchannel heat exchanger [J]. Refrigeration and Air Conditioning, 2009, 9(5): 1-4.
[3]  Agari Y, Ueda A, Nagai S. Thermal conductivity of a polymer composite [J]. Journal of Applied Polymer Science, 1993, 49(9): 1625-1634.
[4]  Luyt A S, Molefi J A, Krum P H. Thermal mechanical and electrical properties of copper powder filled low-density and linear low-density polyethylene composites [J]. Polymer Degradation and Stability, 2006, 91(7): 1629-1636.
[5]  石志想, 傅仁利, 何兵兵, 等. 无机填料对环氧模塑料导热和阻燃性能的影响 [J].复合材料学报, 2011, 28(6): 8-13. Shi Zhixiang, Fu Renli, He Bingbing, et al. Influence of inorganic fillers on thermal and flame retardant properties of epoxy molding plastic [J]. Acta Materiae Compositae Sinica, 2011, 28(6): 8-13.
[6]  涂文英, 张海燕, 林 锦, 等. 多层石墨/硅树脂导热复合材料的制备与性能 [J]. 复合材料学报, 2013, 30(2): 70-74. Tu Wenying, Zhang Haiyan, Lin Jin, et al. Preparation and thermal performance of multilayer graphite/silicon resin composites [J]. Acta Materiae Compositae Sinica, 2013, 30(2): 70-74.
[7]  Hsieh C Y, Chung S L. High thermal conductivity epoxy molding compound filled with a combustion synthesized AIN powder [J]. Journal of Applied Polymer Science, 2006, 102(5): 4734-4740.
[8]  Tu H M, Ye L. Thermal conductive PS/graphite composites [J]. Polymers for Advanced Technologies, 2009, 20(1): 21-27.
[9]  King J A, Johnson B A, Via M D, et al. Effects of carbon fillers in thermally conductive polypropylene based resins [J]. Polymer Composites, 2010, 31(3): 497-506.
[10]  魏明坤, 王雪飞, 宋剑敏, 等. 钛酸酯偶联剂在无机填料中的应用 [J]. 化工新型材料, 2003, 31(8): 40-42. Wei Mingkun, Wang Xuefei, Song Jianmin, et al. Application of titanate coupling agent in the inorganic fillers [J]. Chemical New Materials, 2003, 31(8): 40-42.
[11]  陶国良, 涂善东. 石墨/碳纤维/聚丙烯高强导热材料的研究[J]. 中国塑料, 2004, 18(11): 32-35. Tao Guoliang, Tu Shandong. Research on graphite/carbon fiber/polypropylene high thermal conductive composite [J]. China Plastic, 2004, 18(11): 32-35.
[12]  Keith J M, Hingst C D, Miller M G, et al. Measuring and predicting in-plane thermal conductivity of carbon-filled nylon 6, 6 polymer composites [J]. Polymer Composites, 2006, 27(1): 1-7.
[13]  Chen J, Xiong X, Xiao P, et al. The catalytic effect of boric acid on polyacrylonitrile-based carbon fibers and the thermal conductivity of carbon/carbon composites produced from them [J]. Carbon, 2010, 48(8): 2341-2346.
[14]  Ye C M, Shentu B Q, Weng Z X. Thermal conductivity of high density polyethylene filled with graphite [J]. Journal of Applied Polymer Science, 2006, 101(6): 3806-3810.
[15]  Assael M J, Antoniadis K D, Metaxa I N. et al. Measurements on the enhancement of the thermal conductivity of an epoxy resin when reinforced with glass fiber and carbon multiwalled nanotubes [J]. Journal of Chemical & Engineering, 2008, 54(9): 2365-2370.
[16]  Hourston D J, Hughes I D. Dynamic mechanical and sonic velocity behaviour of polystyrene-poly(vinyl methyl ether) blends [J]. Polymer, 1978, 19(10): 1181-1185.
[17]  Hourston D J, Hughes I D. Polymeric systems for acoustic damping. I. Poly(vinyl chloride)-segmented polyether ester blends [J]. Journal of Applied Polymer Science, 1977, 21(11): 3099-3109.
[18]  Singh Y P, Singh R P. Compatibility studies on solutions of polymer blends by viscometric and ultrasonic techniques [J]. European Polymer Journal, 1983, 19(6): 535-541.
[19]  Shaikh S, Li L, Lafdi K, et al. Thermal conductivity of an aligned carbon nanotube array [J]. Carbon, 2007, 45(13): 2608-2613.

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