碳纳米管/环氧树脂复合材料摩擦磨损性能
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摘要
为提高环氧树脂的耐摩擦磨损性能,通过对多壁碳纳米管酸处理和胺基功能化,研究不同含量的碳纳米管对环氧树脂纳米复合材料磨擦磨损性能的影响,以及干湿条件对碳纳米管/环氧树脂复合材料摩擦磨损性能的影响.结果显示:功能化碳纳米管在环氧树脂基体中的分散性和稳定性比未修饰的多壁碳纳米管在树脂基体中的分散效果更好,功能化碳纳米管的加入提高了环氧树脂复合材料的耐磨性能,摩擦系数明显降低,添加质量分数1.0%的胺基化多壁碳纳米管/环氧树脂复合材料的磨损率为2.025×10~(-4)g/min,相对于纯环氧树脂,降低了53.18%.特别是在湿态条件下的耐磨性能增强更为显著,磨损率仅为0.28×10~(-4)g/min.
In order to improve the friction and wear resistance of epoxy polymer.Multi-walled carbon nanotubes(MWCNTs)were functionalized by acid treatment and amination reaction,and the effect of different MWCNTs on friction and wear behavior of MWCNT/epoxy composites was investigated under dry and wet condition.The results showed that the dispersibility and disperse stability of functionalized MWCNTs were much better than that of pristine MWCNTs,the addition of MWCNTs improved the friction and wear resistance of MWCNT/epoxy composites.The friction coefficient was obviously reduced,and the wear rate was 2.025×10~(-4)g/min with the addition of 1.0 wt.% amino-MWCNTs,especially under wet condition,the enhancement of wear resistance was more significant,the wear rate was only 0.28×10~(-4)g/min.
In order to improve the friction and wear resistance of epoxy polymer.Multi-walled carbon nanotubes(MWCNTs)were functionalized by acid treatment and amination reaction,and the effect of different MWCNTs on friction and wear behavior of MWCNT/epoxy composites was investigated under dry and wet condition.The results showed that the dispersibility and disperse stability of functionalized MWCNTs were much better than that of pristine MWCNTs,the addition of MWCNTs improved the friction and wear resistance of MWCNT/epoxy composites.The friction coefficient was obviously reduced,and the wear rate was 2.025×10~(-4)g/min with the addition of 1.0 wt.% amino-MWCNTs,especially under wet condition,the enhancement of wear resistance was more significant,the wear rate was only 0.28×10~(-4)g/min.
引文
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[12]王世凯,陈晓红,宋怀河,等.多壁碳纳米管/环氧树脂纳米复合材料的摩擦磨损性能研究[J].摩擦学学报,2004,24(5):387-391.
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[14]梁绍磊,史乐,李广芬,等.改性Hummer法制备高羧基化多壁碳纳米管及其性能研究[J].功能材料,2016,47(9):9207-9210.
[15]赵世海,蒋秀明,淮旭国,等.风机叶片用玄武岩纤维增强复合材料的摩擦磨损性能[J].天津工业大学学报,2008,27(6):4-6.
[2]SALVETAT J P,BONARD J M,THOMSON N H,et al.Mechanical properties of carbon nanotubes[J].Applied Physics A,1999,69(3):255-260.
[3]DERVISHI E,LI Z R,XU Y,et al.Carbon nanotubes:synthesis,properties,and applications[J].Particulate Science and Technology,2009,27(2):107-125.
[4]章明秋,容敏智,凌聪.混杂填充改善环氧树脂的减摩耐磨性能[J].材料研究与应用,2010,4(4):722-725.
[5]LIM D S,AN J W,LEE H J.Effect of carbon nanotube addition on the tribological behavior of carbon/carbon composites[J].Wear,2002,252(5):512-517.
[6]YANG K,GU M,GUO Y,et al.Effects of carbon nanotube functionalization on the mechanical and thermal properties of epoxy composites[J].Carbon,2009,47(7):1723-1737.
[7]CHEN H,JACOBS O,WU W,et al.Effect of dispersion method on tribological properties of carbon nanotube reinforced epoxy resin composites[J].Polymer Testing,2007,26(3):351-360.
[8]SINNOTT S B.Chemical functionalization of carbon nanotubes[J].Journal of Nanoscience and Nanotechnology,2002,2(2):113-123.
[9]KATHI J,RHEE K Y,LEE J H.Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites[J].Composites Part A:Applied Science and Manufacturing,2009,40(6):800-809.
[10]CUI L J,WANG Y B,XIU W J,et al.Effect of functionalization of multi-walled carbon nanotube on the curing behavior and mechanical property of multi-walled carbon nanotube/epoxy composites[J].Materials and Design,2013,49:279-284.
[11]MEN X H,ZHANG Z Z,SONG H J,et al.Functionalization of carbon nanotubes to improve the tribological properties of poly(furfuryl alcohol)composite coatings[J].Composites Science and Technology,2008,68(3/4):1042-1049.
[12]王世凯,陈晓红,宋怀河,等.多壁碳纳米管/环氧树脂纳米复合材料的摩擦磨损性能研究[J].摩擦学学报,2004,24(5):387-391.
[13]MENG H,SUI G X,XIE G Y,et al.Friction and wear behavior of carbon nanotubes reinforced polyamide 6composites under dry sliding and water lubricated condition[J].Composites Science and Technology,2009,69(5):606-611.
[14]梁绍磊,史乐,李广芬,等.改性Hummer法制备高羧基化多壁碳纳米管及其性能研究[J].功能材料,2016,47(9):9207-9210.
[15]赵世海,蒋秀明,淮旭国,等.风机叶片用玄武岩纤维增强复合材料的摩擦磨损性能[J].天津工业大学学报,2008,27(6):4-6.