基于乙烯基POSS改性的厌氧胶的制备及性能研究  

Preparation and performance study of anaerobic adhesives modified with vinyl-based POSS

作　　者：王新礼 李生 吴正江[2] 田盼 李冬冬 冯增辉 Wang Xinli;Li Sheng;Wu Zhengjiang;Tian Pan;Li Dongdong;Feng Zenghui(State Key Laboratory of Special Surface Protection Materials and Application Technology,China Academy of Machinery Wuhan Research Institute of Materials Protection Co.,Ltd.,Wuhan 430030,China;Design&Research Institute of Wuhan Second Ship,Wuhan 430064,China)

机构地区：[1]中国机械总院集团武汉材料保护研究所有限公司特种表面保护材料及应用技术国家重点实验室,湖北武汉430030 [2]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《电镀与精饰》2024年第8期41-50,共10页Plating & Finishing

摘　　要：针对机械设备维护与修理中厌氧胶连接件的可拆卸性问题,本研究利用乙烯基二甲基硅氧基笼状聚倍半硅氧烷(POSS-V)对厌氧胶连接件的力学性能进行改性。通过红外光谱对固化前后的厌氧胶进行了表征,并结合摩擦磨损试验、扫描电镜分析、流变学测试、扭矩测试以及剪切强度的测试,深入研究了POSS-V对厌氧胶性能的影响机制。研究发现,POSS-V的引入显著提升了厌氧胶的耐热性,并通过交联作用,使破坏扭矩最大可提高64.75%,POSS-V与丙烯酸酯产生交联反应形成了球状颗粒,有效减少了摩擦系数。在提高厌氧胶破坏扭矩的同时,还维持甚至降低了拆卸扭矩值,从而优化了厌氧胶的综合性能。This research used ethenyl-functionalized polyhedral oligomeric silsesquioxane(POSS-V)to modify the mechanical properties of anaerobic adhesive connectors to address the issue of their disassembly in the maintenance and repair of mechanical equipment.The study characterized the anaerobic adhesive before and after curing using infrared spectroscopy,and combined friction and wear tests,scanning electron microscopy analysis,rheological testing,torque testing,and shear strength testing to thoroughly investigate the impact mechanism of POSS-V on the performance of anaerobic adhesive.The research found that the introduction of POSS-V significantly improved the heat resistance of the anaerobic adhesive.Through cross-linking,the maximum destructive torque could be increased by 64.75%,and the cross-linking reaction between POSS-V and acrylic ester formed spherical particles,effectively reducing the friction coefficient.While increasing the destructive torque of the anaerobic adhesive,it also maintained or even reduced the disassembly torque value,thus optimizing the overall performance of the anaerobic adhesive.

关 键 词：乙烯基POSS 厌氧胶 摩擦系数 黏度 扭矩 

分 类 号：TQ437.4[化学工程]