石油测井仪器用耐高温高湿热环氧树脂复合材料的制备与性能  

Preparation and Properties of High Temperature and High Humidity Resistant Epoxy Resin Composites for Petroleum Logging Instruments

作　　者：吴亚民 张健 WU Yamin;ZHANG Jian(Xi′an Yongxing Science Technology Development Co.,Ltd.,Xi′an 710099,China)

机构地区：[1]西安永兴科技发展有限公司,陕西西安710099

出　　处：《绝缘材料》2022年第8期28-31,共4页Insulating Materials

摘　　要：以多功能AG80环氧树脂和酚醛环氧树脂为复合型环氧树脂基体,以复配二氨基二苯砜(DDS)为固化剂,2-乙基-4-甲基咪唑为促进剂,采用真空浸胶和热压罐成型工艺制得高性能玻璃纤维增强环氧树脂复合材料。结果表明:制备的高性能环氧树脂复合材料具有优越的耐高温高湿热性能。当复配DDS含量为35份时,环氧树脂复合材料的室温拉伸强度、压缩强度和弯曲强度分别达到385、549、407 MPa,绝缘电阻达到1.0×10^(9)Ω,并且在200℃高温条件下弯曲强度达到210 MPa。此外,环氧树脂复合材料在205℃和140 MPa高温高压湿热试验后依然保持良好的力学性能和绝缘性能,能够满足石油测井仪器在高温高湿热环境下的使用要求。High performance glass fiber reinforced epoxy resin composites were prepared by vacuum impregnation and autoclave molding using multifuctional AG80 epoxy resin and phenolic epoxy resin as composite epoxy resin matrix, composite diaminodiphenyl sulfone(DDS) as curing agent and 2-ethyl-4-methylimidazole as accelerator.The results show that the prepared high performance epoxy resin composites have excellent high temperature and high humidity resistance. When the content of DDS is 35 phr, the tensile strength, compressive strength, and bending strength of epoxy resin composites reach 385, 549 and 407 MPa at room temperature, respectively, the insulation resistance reaches 1.0×10^(9)Ω, and the bending strength reaches 210 MPa at 200℃. In addition, the epoxy resin composite still maintains good mechanical properties and insulating properties after high temperature and high pressure hygrothermal test at 205℃ and 140 MPa, which can meet the application requirements of petroleum logging tools in high temperature and high humidity environment.

关 键 词：酚醛环氧树脂 高温高湿热 真空浸胶 热压罐成型 

分 类 号：TM215[一般工业技术—材料科学与工程]