刘娟, 侯占峰, 沈梅, 辛振祥*
(青岛科技大学 高分子科学与工程学院,山东 青岛 266042)
摘要: 通过改变粉末成型的温度(150~170 ℃)和时间(10~30 min),确定胶粉成型的最佳工艺条件。试验结果表明,随着成型温度的增加和时间的延长,胶片的拉伸强度和拉断伸长率均增大,交联密度逐渐降低;当成型温度为170 ℃,成型时间为20 min时,胶粉成型的性能最佳。
关键词: 胶粉; 粉末成型; 交联密度; 成型温度; 成型时间
中图分类号: TQ 330.6+6 文献标志码: A
Effects of Molding Temperature and Time on Performance of Film Made by Powder Compacting of the Whole Tire Rubber Powder
LIU Juan, HOU Zhanfeng, SHEN Mei, XIN Zhenxiang
(College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: The effects of molding temperature (150—170 ℃) and time (10—30 min) on the performance of the film made by powder compacting of the whole tire rubber powder were studied.The results showed that the tensile strength and elongation at break increased with the extension of the molding temperature and time, while the crosslinking density decreased.The optimum of powder compacting is 170 ℃ molded 20 min.
Key words: powder; powder compacting; crosslinking density; molding temperature; molding time
收稿日期: 20140702
基金项目: 国家自然科学基金项目(51273098).
作者简介: 刘娟(1988—),女,硕士研究生. * 通信联系人.