PREPARATION OF POLYSTYRENE HOLLOW MICROSPHERES FROM WASTE FOAMED POLYSTYRENE PLASTICS BY MICROENCAPSULATION METHOD
Waste foamed polystyrene plastics were used as the main raw materials for the preparation of polystyrene hollow microspheres with high additional value by microencapsulation method. Firstly the preparation conditions were studied, such as the emulsifying time, the temperature and time of the solidification of oil phase, and then the method of removing the encapsulated water was discussed. The factors which influenced the average diameter and tap density of polystyrene hollow microspheres were also investigated, and finally the recycling technology of reagents used in experiment was discussed. Under optimum conditions, polystyrene hollow microspheres with the lowest tap density of 0.12g·cm-3 and average diameter from 40μm to 650μm were successfully produced.
waste foamed polystyrene plastics polystyrene hollow microspheres microencapsulation method preparation conditions tap density average diameter
Wei Bin Wang Shujun Liu Hongyan Liu Ning
State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China School of Chemical Science and Engineering,China University of Petroleum,Beijing 102249,China
国际会议
成都
英文
160-164
2009-10-11（万方平台首次上网日期，不代表论文的发表时间）