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精密磨擦材料氧化铝/聚酰亚胺磨片的制备
Properties of a polyimide composite filled with Al2O3 as a kind of precision grinding material
【摘要】 采用一次成膜和程序升温法,制备了以聚酰亚胺为基底的氧化铝新型磨片(Al2O3/PI),可用于硬脆性机件表面的精加工和抛光。扫描电镜(SEM)显示,Al2O3/PI磨片为双层膜型,磨料层厚度约50μm,基底厚度约150μm。差热分析(DSC/TGA)、拉伸强度和断裂伸长率测试表明显示,Al2O3/PI磨片的热分解温度大于500℃,并具有PI膜的高强度和良好的柔韧性。对磨片制备过程的主要影响因素及铜片的抛光效果进行了讨论。
【Abstract】 By using the method of the procedure heat and once filming,a new grinding material of Al2O3/PI was prepared.This grinding material can be used into polishing of the firm and brittle material.Scanning electron microscope(SEM) showed that Al2O3/PI was a double-layer-film.The top-layer full of Al2O3 was about 50 μm thick.The under-layer which was PI was about 150μm thick.DSC/TG data and tension test displayed that Al2O3/PI grinding slice maintained the excellent properties of PI.The preparation process and polished effect of sheet copper were also discussed.
【Key words】 polyimide(PI)； Alumina(Al2O3)； precision grinding material； grinding sheet；
- 【文献出处】 化工新型材料 ,New Chemical Materials , 编辑部邮箱 ,2007年12期
- 【分类号】TQ320.72
- 【下载频次】122