大气等离子体处理对三元乙丙绝热层表面性能的影响  

Effects of atmospheric pressure plasma treatmenton surface properties of EPDM insulation

作　　者：梁夏敏 李东峰[1] 杨洁 李华兴 刘征哲 罗国勤[1] 桑丽鹏[1] 王玉[1] 尹华丽[1,2] LIANG Xiamin;LI Dongfeng;YANG Jie;LI Huaxing;LIU Zhengzhe;LUO Guoqin;SANG Lipeng;WANG Yu;YIN Huali(Hubei Institute of Aerospace Chemotechnology,Xiangyang 441003,China;Science and Technology on Aerospace Chemical Power Laboratory,Xiangyang 441003,China)

机构地区：[1]湖北航天化学技术研究所,襄阳441003 [2]航天化学动力重点实验室,襄阳441003

出　　处：《固体火箭技术》2023年第2期272-278,共7页Journal of Solid Rocket Technology

基　　金：国家自然科学基金面上项目(NSFC22175059)。

摘　　要：为解决三元乙丙(EPDM)绝热层机械打磨效率低、噪音大、粉尘多,以及溶剂清洗带来的安全、操作人员的健康等问题,探究大气等离子体处理技术取代机械打磨的可行性。运用大气等离子体对EPDM绝热层进行表面处理,通过傅里叶红外光谱、扫描电子显微镜-能量色散谱仪、表面能测量仪对处理前后EPDM绝热层表面形貌、化学元素组成和表面润湿性进行表征,采用万能材料试验机对处理前后EPDM绝热层和衬层的界面粘接性能进行测试。实验结果表明,等离子体处理后的EPDM绝热层表面新增含氧基团,表面氧元素含量增加,表面形貌更加均匀,表面能由25.43 mN/m升高到43.06 mN/m,EPDM绝热层/衬层的界面粘接强度由1.89 MPa提高到2.16 MPa,证明了大气等离子体处理技术取代机械打磨具有可行性。For solving the problems of low efficiency,loud noise,dust during the mechanical grinding of EPDM insulation,as well as safety and health of operators in solvent cleaning,the feasibility replacing the mechanical grinding with the atmospheric pressure plasma treatment technology was explored.The surface of EPDM insulation was treated by means of the atmospheric pressure plasma treatment technology.The surface morphology,chemical composition and surface wettability of EPDM insulation before and after treatment were characterized by Fourier transform infrared spectroscopy(FTIR),scanning electron microscope-X-ray energy dispersive spectroscopy(SEM-EDS)and surface energy measuring meter.The interfacial bonding properties between EPDM insulation and liner were tested by universal material testing machine.The experimental results show that the surface of EPDM insulation after plasma treatment occur the new oxygen-containing chemical groups,and the oxygen content on the surface is increased;the surface morphology is more uniform,the surface energy increases from 25.43 mN/m to 43.06 mN/m,and the interfacial bonding strength between EPDM insulation and liner increases from 1.89 MPa to 2.16 MPa.It is proved that replacement of mechanical grinding with the atmospheric pressure plasma treatment technology is feasible.

关 键 词：表面处理 大气等离子体 三元乙丙绝热层 表面能 粘接强度 

分 类 号：V255[一般工业技术—材料科学与工程]