ZHU Chensen, DENG Guodong, WANG Yujiao, WANG Qinghua
(National Special Superfine Powder Engineering Research Centre, Nanjing University of Science and Technology, Nanjing 210094, China)
Abstract：To solve the problem that the oversize of chlorinated polyvinyl chloride resin particles leads to low adhesion and low degree of finish and low efficiency of cover, the twin-disc cutting mill was used for ultrafine grinding of chlorinated polyvinyl chloride resin. The effect of materials concentration, crushing times, gap between cutters and pill speed on particle size of chlorinated polyvinyl chloride resin was studied. The results show the best grinding conditions are that the mass fraction of the rein is 20%, cutting times is 4, motor speed is 2 000 r/min, and the gap between cutters is 0.5 mm. With the best grinding condition, the grinding process is stable. The median particles size d50 of chlorinated polyvinyl chloride decreases from 296 to 96 μm, which can meet the application requirements of coating.
Keywords: chlorinated polyvinyl chloride resin; ultrafine grinding; twin-disc cutting mill
中图分类号：TQ63 文献标志码：A
文章编号：1008-5548（2014）05-0077-04
DOI:10.13732/j.issn.1008-5548.2014.05.020
收稿日期：2013-12-23， 修回日期：2014-02-19，在线出版时间：2014-10-11。
第一作者简介：朱陈森(1990—)，男，硕士研究生，研究方向为微纳米材料制备。 E-mail:869180116@qq.com。
通信作者简介：邓国栋(1965—)，男，高级工程师，研究方向为含能材料微纳米化制备。 E-mail:dypdgd@126.com。
