采用超细聚四氟乙烯（PTFE）粉末作为减摩功能填料,碳纤维（CF）作为增强材料,制备了CF-PTFE/PA6复合材料;利用60Co-γ射线对该复合材料进行了辐射改性,对复合材料的力学性能和摩擦学性能进行了研究,并采用SEM观察了该复合材料冲击断面的表面形貌。结果表明：添加8%的PTFE和13%的CF的CF-PTFE/PA6复合材料不仅具有较好的力学强度和摩擦学性能,而且经过120 kGy辐射处理后,其弯曲强度、拉伸强度和冲击强度分别提高了9.9%、7.9%和11.7%。
Carbon fiber-polytetrafluoroethylene/polyamide 6（CF-PTFE/PA6） composites were prepared using ultrafine PTFE powder as a friction-reducing function filler,and CF as a reinforcement.The CF-PTFE/PA6 composites were irradiated by 60Co-γ rays.The mechanical and tribological properties of the composites were studied,and the impact fracture surface morphology of the composites was observed by SEM.The results show that CF-PTFE/PA6 composites with mass fraction of 8% PTFE and 13% CF not only exhibited better mechanical strength and tribological properties,but also possessed higher bending strength,tensile strength and impact strength,which increased by 9.9%,7.9% and 11.7%,respectively,after optimum adsorbed dose of 120kGy.
参考文献
| [1] | 王冲,魏刚,闫光红,等.聚酰胺工程塑料的摩擦学改性研究进展[J].中国塑料,2007,21(9):1-6. |
| [2] | 邓如生,魏运方,陈步宁.聚酰胺树脂及其应用[M].北京:化学工业出版社,2002:70-85. |
| [3] | 王元瑞,任亮,孟庆新,孙树林.UHMWPE/PA1010塑料合金的制备及性能[J].复合材料学报,2009,26(5),54-59. |
| [4] | Palabiyik M, bahadur S. Mechanical and tribological propertiesof polyamide 6 and high density polyethylene polyblends with and without compatibilizer [J]. Wear, 2000, 246(1/2): 149-158. |
| [5] | Palabiyik M, bahadur S. Tribologieal studies of polyamide 6 and high-density polyethylene blends filled with PTFE and copper oxide and reinforced with short glass fibers [J]. Wear, 2002, 253(3/4): 369-376. |
| [6] | Thomason J L. The influence of fibre length, diameter and concentration on the impact performance of long glass-fibre reinforced polyamide 6, 6 [J]. Composites Part A, 2009, 40 (2) : 114-124. |
| [7] | 葛世荣,张德坤.碳纤维增强PA1010的力学性能及其对摩擦磨损的影响[J].复合材料学报,2004,21(2):99-104. |
| [8] | 王军祥,顾明元,朱真才,葛世荣,刘维民.碳纤维和二硫化铝混杂增强PA复合材料的摩擦学性能研究[J].复合材料学报,2003,20(2):13-18. |
| [9] | 岳群峰,任俊芳,王宏刚,等.PTFE对纤维增强PA66材料摩擦学性能的影响[J].机械工程材料,2005,29(10);32-37. |
| [10] | 黄丽,孙正滨.PTFE复合材料力学与摩擦性能的研究[J].复合材料学报,2000,17(4):54-57. |
| [11] | 刘先科.PTFE基自润滑复合材料制备工艺与性能研究[D].哈尔滨:哈尔滨工业大学,2006. |
| [12] | 翟茂林,伊敏,哈鸿飞.高分子材料辐射加工技术及进展[M].北京:化学工业出版社,2004:250-256. |
| [13] | 张艳,谢雷东,盛康龙.SBS辐射交联对SBS/PA6共混物性能的影响[J].辐射研究与辐射工艺学报,2009,27(6):345-349. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%