改性氨基四官能环氧基固体润滑涂层的研究

A Study on the Solid Lubrication Coating Containing a Modified Amino-Epoxy with Four Functional Groups

用差动扫描量热技术(DSC)研究了AG-80环氧树脂与钛酸丁酯混合体系的固化特性,确定了该体系中固化剂的最佳含量为20～25％(wt),固化起始温度为150℃,然后缓慢升温至175℃恒温1h,接着再升温到250℃便能使树脂充分固化。试验结果表明,经有机钛及活性氧化铜改性的AG-80环氧树脂具有较好的机械性能和耐温性能;有机钛可以作为环氧树脂的改性剂,也是环氧树脂的一种很好的固化剂,添加少量的活性氧化铜可以改善涂层的热性能和摩擦学性能;在制膜工艺上于喷膜后室温下放置2～5h可以明显改善涂层的摩擦学性能(特别是耐磨性)。

The Solidification characteristics of the composition system based on AG-80 epoxy resin and butyl titanate were investigated by means of differential scanning calorimetry (DSC) . The optimal content of the solidifying agent in this system is between 20% to 25% (wt) . The initial solidifying temperature was 150℃, and then the temperature rose slowly to 175℃, and was kept constantly for 1 hour, and then the temperature rose continuously up to 250℃ so as to solidifying the resin. The test results showed that the AG-80 modified epoxy resin, which was modified by organic titan and active copper oxide, is of good mechanical property and thermostable; the organic titan can be used as good modifying agent and solidifying agent; adding a little active copper oxide can improve the thermal stability and the tribological properties of the coating; especially, the wear-resistance can be improved obviously when the coating is kept at room temperature for 2-5 hours after coating.