空心玻璃微珠／聚四氟乙烯复合材料的性能研究

PTFE

空心玻璃微珠／聚四氟乙烯复合材料的性能研究
张明强 曾黎明 向昊武汉理工大学材料学院,湖北武汉430070

摘　要:采用共混方法制备了空心玻璃微珠／聚四氟乙烯复合材料。研究了复合材料的密度、吸水性、压缩强度、冲击强度、邵氏硬度、隔热性能，并借助SEM探讨了冲击断面的微观形态结构，对各影响因素进行了分析。结果表明：加入适量的玻璃微珠可以提高复合材料的隔热性能，降低复合材料的密度；由于空心玻璃微珠强度低及界面缺陷的存在，复合材料的机械性能下降，但在加入少量空心玻璃微珠时，模压过程中产生的玻璃碎片提高了复合材料的压缩强度。[著者文摘]

关键词:空心玻璃微珠 聚四氟乙烯 复合材料 隔热
分类号:　TQ325.4[著者标引]文献标识码：B文章编号：1005-5770（2008）09-0013-03栏目信息：树脂改性与合金
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Study on Property of Hollow Glass Microballon/PTFE CompositeZHANG Ming-qiang, ZENG Li-ming, XIANG Hao College of Materials Sci. , Wuhan University of Sci. and Eng. , Wuhan 430070, ChinaAbstract:Hollow glass microballon/PTFE composite was prepared by means of blending. The density, water absorption, compressive strength, impact strength, Shore hardness, and thermal insulating property of the composite were analyzed, the microstructures of the impact fracture surface of the composite were studied by means of SEM, and the factors having effects on the property of the composite were further discussed. The results showed the addition of the microballon could effectively improve the thermal insulating property and decrease the density of the composite; because of the low strength and interface defect of the microballon, the mechanical properties of the composite downgraded. However, when only a small amount of the microballon was filled, the glass chips caused by the moulding upgraded the compressive strength of the composite.[著者文摘]

Key words:Hollow Glass Microballon; PTFE ; Composite ; Heat Insulation