超硬磨具用耐高温树脂结合剂的性能研究  

Study on properties of heat-resistant resin binder for superhard abrasive tools

作　　者：袁天顺 简亚溜 邹文俊[1] 彭进[1] 宋旭东 刘鹏展 YUAN Tianshun;JIAN Yaliu;ZOU Wenjun;PENG Jin;SONG Xudong;LIU Pengzhan(School of Material Science and Engineering, Henan University of Technology, Zhengzhou 450000, China;Metastable Materials Science and Technology State Key Laboratory, Yanshan University, Qinhuangdao 066004, Hebei, China)

机构地区：[1]河南工业大学材料科学与工程学院,郑州450000 [2]燕山大学,亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《金刚石与磨料磨具工程》2020年第2期32-35,共4页Diamond & Abrasives Engineering

摘　　要：采用甲基三甲氧基硅烷(MTMS)为改性剂,通过酯交换方式制备出有机硅酚醛树脂(SPF),并用傅里叶变换红外光谱分析、热重分析、力学性能测试等表征方法对SPF进行测定。结果表明:MTMS被成功引入SPF树脂结构中,且SPF耐热性能优良,受热质量损失10%时温度为462℃,较普通酚醛树脂(PF)的温度提高了90℃。与以PF为结合剂的超硬磨具相比,以SPF为结合剂制造的超硬磨具的力学性能明显提高,磨削比提高了51.1%;同时,后者的弯曲强度和冲击强度较前者的分别提高了14.2%和5.7%。A silicone phenolic resin(SPF)was synthesized by transesterification using methyltrimethoxysilane(MTMS)as a modifier.The SPF was determined by FTIR analysis,TGA analysis,mechanical property test and other characterization methods.The results show that MTMS is successfully introduced into the structure of the resin;the resin has excellent heat-resistance,whose temperature at weight loss 10%is 462℃,90℃higher than that of ordinary phenolic resin(PF);the mechanical performance is obviously improved and the grinding ratio of superhard abrasive tools with SPF as resin binder is 51.1%higher than that of superhard abrasive tools with PF as resin binder.Meanwhile,the bending strength and impact strength of superhard abrasive tools with SPF as resin binder are 14.2%and 5.7%higher than that of another one,respectively.

关 键 词：硅酚醛树脂 超硬磨具 热稳定性 磨削比 

分 类 号：TQ163[化学工程—高温制品工业] TG74[金属学及工艺—刀具与模具]