硼改性酚醛树脂在机油滤纸中的应用

Application of Boron Modified Phenolic Resin in Oil Filter Paper

关键词:  硼改性酚醛树脂  机油滤纸  耐老化

Key Words:boric acid modified phenolic resin  oil filter paper  aging resistance

摘要:本研究采用水杨醇法制备硼改性酚醛树脂（BPF），并将其应用于机油滤纸以增强其物理性能。研究结果表明，最佳的BPF合成条件为：苯酚：甲醛：硼酸物质的量比1.0∶1.4∶0.2、反应温度110℃、反应时间1.5 h，其在800℃的残余质量为68.4%。当固化温度180℃，上胶量（24±1）%时，BPF浸渍固化滤纸性能最佳，耐破指数达2.67 kPa·m²/g，抗张指数达50.2 N·m/g，滤纸纵向挺度为6.37 mN·m。180℃老化试验（老化12 h）后滤纸耐破指数为1.38 kPa·m²/g，抗张指数为44.4 N·m/g。且在150℃的机油中老化192 h后，耐破度为196 kPa，满足JB/T 12651.1中对机油滤纸的质量要求。

Abstract:The boron-modified phenolic resin （BPF） was prepared via salicyl alcohol method and applied to oil filter paper to enhance its physical properties in this study. The results showed that the best BPF synthesis conditions were as follows： molar ratio of phenol， formaldehyde and boric acid was 1.0∶1.4∶0.2， reaction temperature was 110℃， reaction time was 1.5 h， and its residual mass at 800℃ was 68.4%. When the curing temperature was 180℃， and glue content was （24±1）%， the BPF impregnated cured filter paper had the best performance. The break resistance index reached 2.67 kPa·m²/g， tensile index reached 50.2 N·m/g， the longitudinal stiffness of filter paper was 6.37 mN·m. After aging test at 180℃ for 12 h， the breaking resistance index of filter paper was 1.38 kPa·m²/g， and the tensile resistance index was 44.4 N·m/g. And the rupture resistance was 196 kPa after aging test in oil at 150℃ for 192 h， which met the quality requirements of JB/T 12651.1.