| POM/UHMWPE共混物摩擦磨损性能研究 |
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| 引用本文： | 陈金耀,曹亚,李惠林. POM/UHMWPE共混物摩擦磨损性能研究[J]. 塑料工业, 2004, 32(11): 39-42 |
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| 作者姓名： | 陈金耀 曹亚 李惠林 |
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| 作者单位： | 高分子材料工程国家重点实验室,四川大学高分子研究所,四川,成都,610065 |
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| 基金项目： | 国家 8 63计划资助项目 (2 0 0 2AA3 3 3 0 70 ) |
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| 摘 要： | 将3种不同的超高摩尔质量聚乙烯(UHMWPE)和聚甲醛(POM)共混，制成POM自润滑材料，并研究了共混物的摩擦磨损性能。结果表明：采用自制的PP改性UHMWPE(M-UHMWPE)与POM共混，能有效提高POM的摩擦磨损性能；当M．UHMWPE质量分数为5％时，POM／M-UHMWPE共混物的摩擦系数从纯POM的0．32降低到共混物的0．16，磨痕宽度从POM的5．00mm下降为3．56mm；SEM分析表明，在摩擦过程中，M-UHMWPE向磨损界面转移形成磨屑，有效地隔离了两摩擦面的接触，起到了减摩耐磨剂的作用，明显降低了POM树脂的摩擦系数，提高了POM的耐磨损性能。
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| 关 键 词： | 超高摩尔质量聚乙烯 聚甲醛 共混 摩擦磨损性能 聚丙烯 聚四氟乙烯 硅油 二硫化钼 改性剂 双螺杆挤出机 |
| 文章编号： | 1005-5770(2004)11-0039-04 |
| 修稿时间： | 2004-08-18 |
Study on Friction and Wear Properties of POM/UHMWPE Blend |
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| CHEN Jin-yao,CAO Ya,LI Hui-lin. Study on Friction and Wear Properties of POM/UHMWPE Blend[J]. China Plastics Industry, 2004, 32(11): 39-42 |
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| Authors: | CHEN Jin-yao CAO Ya LI Hui-lin |
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| Abstract: | Self-lubricate POM materials were prepared by blending POM with H-UHMWPE,C-UHMWPE and M-UHMWPE, and the friction and wear properties of the blends were studied. It was found that the friction and wear properties of POM/M-UHMWPE blends were greatly improved by blending POM with M-UHMWPE. When the mass fraction of M-UHMWPE was 5%, the coefficient of friction of POM/M-UHMWPE blend reduced from 0.32 of POM to 0.16, and the wear scar width of POM/M-UHMWPE blend was decreased from 5.00 mm to 3.56 mm. The SEM of the worn surface showed in the course of friction and wear, the debris formed by M-UHMWPE transferring to the worn surface exited in the contact surface, and acted as anti-friction and wear resisting agent. The friction coefficient of POM was thus reduced remarkably and the wear resistance of POM was improved greatly. |
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| Keywords: | POM UHMWPE Friction and Wear Properties |
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