用于超硬磨具的新型催化剂固化的酚醛树脂的性能  

Properties of new catalyst curing phenolic resin for superhard abrasive tools

作　　者：简亚溜 袁天顺 彭进[1] 邹文俊[1] 宋旭东 刘鹏展 王俊珂 JIAN Yaliu;YUAN Tianshun;PENG Jin;ZOU Wenjun;SONG Xudong;LIU Pengzhan;WANG Junke(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;Zhengzhou Boiler Co. , Ltd. , Zhengzhou 450000, 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试验室,河北秦皇岛066004 [3]郑州锅炉股份有限公司,郑州450000

出　　处：《金刚石与磨料磨具工程》2020年第5期64-68,共5页Diamond & Abrasives Engineering

摘　　要：六次甲基四胺(hexamethylenetetramine,HMTA)作为最常用的热塑性酚醛树脂的催化固化剂,大量应用于磨具制造领域。由于结构中芳核间仅以亚甲基相连,因此树脂表现为较大脆性。以自制苯酰胺类衍生物(sulfonamide derivatives,PTSA)替代六次甲基四胺用于酚醛树脂的固化,采用热重分析(thermogravimetric analysis,TGA)、力学性能以及冲击测试等方法进行表征及分析。结果表明:PTSA固化酚醛树脂失重10%时的热失重温度为396℃,较HMTA固化的酚醛树脂的提高了24℃,耐热性优良;以PTSA固化树脂作结合剂制备的超硬磨具,较HMTA固化树脂作结合剂的超硬磨具的磨削比提高36.18%。Hexamethylenetetramine(HMTA)is the most commonly used catalytic curing agent for thermoplastic phenolic resins,and is widely used in the field of abrasive grinding.However,the cured resin exhibits greater brittleness due to the methylene linkage between the aromatic nuclei in structure.In this study,the sulfonamide derivatives(PTSA)was used to replace the hexamethylenetetramine for the curing of phenolic resin.The phenolic resin cured by PTSA and HMTA was characterized and analyzed by TGA,mechanical properties and impact test.The results show that the weight loss temperature of PTSA cured phenolic resin at 10%weight loss is 396℃,which is 24℃higher than that of HMTA cured phenolic resin,and the heat resistance is excellent.The grinding ratio of super-hard abrasives made by using PTSA cured resin as binder is 36.18%higher than that of HMTA cured resin as binder.

关 键 词：酚醛树脂 超硬磨具 力学性能 热稳定性 磨削比 

分 类 号：TG74[金属学及工艺—刀具与模具]