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摘要: 用Charpy冲击实验装置研究凹凸棒土(AT)增强聚丙烯(PP)复合材料的断裂韧性。测量AT含量为10wt%~40wt%试样的断裂韧性。结果显示,在AT含量为10wt%~30wt%范围内,复合材料的断裂韧性(Gc)高于纯基体PP.这说明,在一定条件下,加入AT可以改善PP的断裂韧性。Abstract: Impact fracture toughness of composite materials PP/AT with packing particle AT: 0, 10wt%, 15wt%, 20wt%, 30wt% and 40wt% is studied by means of Charpy impact testing machine respectively. Results demonstrate that adding AT can increase fracture toughness of PP/AT under a certain range of AT fraction, and the best fraction is between 20wt% and 30wt%.
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Key words:
- attapulgite /
- composites /
- fracture toughness
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Rice J R. J Appl Mech, 1968, 35: 379. Wiliams J G, et al. Poly Eng Sci, 1975, 15: 470. Marshall G P, Willams J G, Turner E E. J Mat Sci, 1973, 8: 949. 戴兰宏. 复合材料断裂破坏的Fractal分析. 合肥: 合肥工业大学, 1992. Large F F. Phil Mag, 1970, 22: 983.
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