摘要
为了研究出一种耐磨性能优异的环氧树脂基纳米复合材料,将球形纳米氧化铝经γ-氨丙基三甲氧基硅烷改性后负载到氧化石墨烯表面,再将其作为填料加入到环氧树脂中,制备出球形纳米氧化铝/氧化石墨烯/环氧树脂新型纳米复合材料。利用硬度计、磨耗仪及万能试验机,分别对纳米复合材料的硬度、磨损量、弯曲性能和冲击性能进行测试。试验结果表明:该新型纳米复合材料相较于纯环氧树脂,磨损量减少了52.5%;弯曲强度达到了121.4 MPa,为纯环氧树脂的1.44倍;冲击强度达到了27.4 J/m^(2),为纯环氧树脂的5.96倍。球形纳米氧化铝大的比表面积与表面作用力增强了片层状氧化石墨烯和环氧树脂的表面作用,进而使该新型纳米复合材料表现出了优异的耐磨性能。
For developing an epoxy resin-based nanocomposite with excellent wear resistance,the spherical nano-alumina was modified byγ-aminopropyltrimethoxysilane and loaded on the surface of graphene oxide,and then it was added as a filler to epoxy resin to prepare a spherical nano-alumina/graphene oxide/epoxy resin novel nanocomposite material.Moreover,the hardness,wear amount,bending and impact properties of the nanocomposite materials were tested by the means of hardness tester,abrasion tester and universal testing machine.Results showed that in the comparison of pure epoxy resin,the new nanocomposite material had 52.5%reduction in wear amount.The bending strength of this nanocomposite material reached 121.4 MPa,which was 1.44 times that of pure epoxy resin;the impact strength reached 27.4 J/m^(2),which was 5.96 times that of pure epoxy resin.Furthermore,the large specific surface area and surface force of the spherical nano-alumina enhanced the surface action of the sheet-shaped graphene oxide and epoxy resin,and thereby enabled the new nanocomposite material to exhibit excellent wear resistance.
作者
张瑞珠
张豪
崔祥程
邵玉飞
黄建林
ZHANG Rui-zhu;ZHANG Hao;CUI Xiang-cheng;SHAO Yu-fei;HUANG Jian-lin(School of Mechanical Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450045,China;Henan Tianma New Materials Co.,Ltd.,Zhengzhou 450011,China)
出处
《材料保护》
CAS
CSCD
2021年第6期34-39,58,共7页
Materials Protection
基金
河南省工程技术研究中心资助项目(豫科2016-221号-高新35)
第三批智汇郑州1125·聚才计划-创新紧缺人才资助项目(郑政[2018]-45号-15)。
