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超细煤粉表面润湿性的研究
Study on the surface wet characteristic of ultrafine coal powder
【摘要】 为了研究不同变质程度的煤经超细化处理后表面润湿性的变化,利用德国产的接触角自动测量仪(OperatingmanualDCAT21)对所制的5种不同变质程度的超细煤粉进行了接触角的测定.测试结果表明,虽然各煤样的变质程度和平均粒径各不相同,但超细化粉碎后,表面润湿性都发生了很大的变化,不同变质程度的超细煤粉表面都变成了强疏水表面.
【Abstract】 In order to study ultrafine coal surface wettability change, used the operating manual DCAT21 which made in Germany to determine the five ultrafine coal powder that were made from different metamorphism coal.The test results indicated that through the metamorphism and average particle size diameter of all coal samples are different, ultrafine coal powder samples surface wettability are deeply modified, middling metamorphism ultrafine coal powder samples surface are become strongly hydrophoby surface.
【关键词】 超细煤粉;
表面润湿性;
变质程度;
接触角;
【Key words】 ultrafine coal powder; surface wattability; metamorphism; contact angle;
【Key words】 ultrafine coal powder; surface wattability; metamorphism; contact angle;
【基金】 黑龙江省科技厅2002年攻关项目(20020101)
- 【文献出处】 煤炭学报 ,Journal of China Coal Society , 编辑部邮箱 ,2004年03期
- 【分类号】TQ533
- 【被引频次】92
- 【下载频次】956