Tribological Property and Tensile Properties of MPU/UHMWPE Blends
摘 要
通过添加超高分子量聚乙烯(UHMWPE)和聚乙烯接枝马来酸酐(PE-g-MAH)对混炼型聚氨酯弹性体(MPU)进行减摩改性, 研究了UHMWPE和相容剂PE-g-MAH加入量对共混体系摩擦因数、表面能和拉伸性能的影响, 通过扫描电子显微镜对共混体系的相容性进行了分析。结果表明: 随着UHMWPE加入量的增多, 共混体系的摩擦因数、表面能和断裂伸长率逐渐降低, 弹性模量则不断增大, 拉伸强度先增大后减小; 随着PE-g-MAH加入量的增多, 共混体系的摩擦因数不断降低, 而表面能先逐渐升高后趋于平缓, 拉伸强度、断裂伸长率先增大后减小, 弹性模量不断增大; 当共混体系配比为w(MPU)∶w(PE-g-MAH) ∶w(DCP) ∶w(UHMWPE)=100∶8∶0.05∶15时, 共混体系的改性效果最好, 摩擦因数达到最低且拉伸性能保持最佳。
Abstract
Millable polyurethane rubber (MPU) was modified to reduce its friction coefficient by adding ultra-high molecular weight polyethylenes (UHMWPE) and maleic anhydride-grafted polythene (PE-g-MAH). The friction coefficient, surface energy and tensile properties of the blend were influenced by the adding amount of UHMWPE and PE-g-MAH. Compatibility of the blend was analyzed by SEM. The results show that with the increase of adding amount of UHMWPE, the friction coefficient, surface energy and break elongation of the blend reduced, but the elastic modulus increased, and the tensile strength increased at first and then decreased. With the increase of adding amount of PE-g-MAH, the friction coefficient of the blend reduced continuously, the surface energy, tensile strength and break elongation increased at first and then decreased, and the elastic modulus increased. The modified effect of the blend was best in the condition of w(MPU)∶w(PE-g-MAH)∶w(DCP)∶w(UHMWPE)=100∶8∶0.05∶15, and the blend prepared in this condition had the minimum friction coefficient and optimal tensile properties.
中图分类号 TQ323.8
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(51273060)
收稿日期 2014/3/22
修改稿日期 2014/10/1
网络出版日期
作者单位点击查看
备注李娇(1989-), 女, 湖北荆门人, 硕士研究生。
引用该论文: LI Jiao,SUN Yi-ming,PENG Shao-xian,CHENG Yan. Tribological Property and Tensile Properties of MPU/UHMWPE Blends[J]. Materials for mechancial engineering, 2015, 39(4): 35~38
李娇,孙义明,彭少贤,程燕. MPU/UHMWPE共混体系的摩擦学性能及拉伸性能[J]. 机械工程材料, 2015, 39(4): 35~38
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】BHARAT B, STANLEY G, RICHARD W, et al. Development of low-friction elastomers for bearings and seals[J].Lubrication Engineering, 1982, 38:626-634.
【2】李长生, 张伟, 刘艳清, 等.NbSe2纳米颗粒的合成及减摩性能[J].机械工程材料, 2011, 35(9): 48-51.
【3】SHI G, ZHANG M Q, RONG M Z, et al. Friction and wear of low nanometer Si3N4 filled epoxy composites[J].Wear,2003,254 (7/8):784 -796.
【4】李小慧.聚酯纤维布增强聚氨酯树脂复合材料的摩擦学性能[J].机械工程材料, 2010, 34(7): 74-79.
【5】KUBARTA T, POLCARC T, KOPECKYB L. Influence of nanometer lanthanum fluoride on friction and wear behaviors of bonded[J].Surface & Coatings Technology,2005,193:230-233.
【6】李文娟, 游一兰, 李笃信, 等.PTFE及UHMWPE改性PA6复合材料的摩擦学性能研究[J].摩擦学学报, 2013, 33(2): 123-128.
【7】王宏刚, 简令奇, 杨生荣, 等.尼龙共混复合材料的摩擦学性能研究[J].机械工程材料, 2003, 27(10): 40-42.
【8】谢晓芳.UHMWPE超细无机分体填充、有机交联改性复合材料性能研究[ D].北京: 北京化工大学, 2004.
【9】袁浩, 胡鹏.超高相对分子质量聚乙烯和聚氨酯共混物的相容性[J].上海塑料, 2002(2): 32-33.
【10】VINK P, BOTS T L. Formulation parameters influencing self-stratification of coatings[J]. Progress in Organic Coating,1996,28:173-181.
【11】孙国恩, 任露泉, 刘朝宗, 等.PA6/UHMWPE /HDPE-g-MAH共混物反应增容作用的研究[J].高分子材料科学与工程, 2001, 17(2): 64-67.
【2】李长生, 张伟, 刘艳清, 等.NbSe2纳米颗粒的合成及减摩性能[J].机械工程材料, 2011, 35(9): 48-51.
【3】SHI G, ZHANG M Q, RONG M Z, et al. Friction and wear of low nanometer Si3N4 filled epoxy composites[J].Wear,2003,254 (7/8):784 -796.
【4】李小慧.聚酯纤维布增强聚氨酯树脂复合材料的摩擦学性能[J].机械工程材料, 2010, 34(7): 74-79.
【5】KUBARTA T, POLCARC T, KOPECKYB L. Influence of nanometer lanthanum fluoride on friction and wear behaviors of bonded[J].Surface & Coatings Technology,2005,193:230-233.
【6】李文娟, 游一兰, 李笃信, 等.PTFE及UHMWPE改性PA6复合材料的摩擦学性能研究[J].摩擦学学报, 2013, 33(2): 123-128.
【7】王宏刚, 简令奇, 杨生荣, 等.尼龙共混复合材料的摩擦学性能研究[J].机械工程材料, 2003, 27(10): 40-42.
【8】谢晓芳.UHMWPE超细无机分体填充、有机交联改性复合材料性能研究[ D].北京: 北京化工大学, 2004.
【9】袁浩, 胡鹏.超高相对分子质量聚乙烯和聚氨酯共混物的相容性[J].上海塑料, 2002(2): 32-33.
【10】VINK P, BOTS T L. Formulation parameters influencing self-stratification of coatings[J]. Progress in Organic Coating,1996,28:173-181.
【11】孙国恩, 任露泉, 刘朝宗, 等.PA6/UHMWPE /HDPE-g-MAH共混物反应增容作用的研究[J].高分子材料科学与工程, 2001, 17(2): 64-67.
相关信息