活化改性对冷冻胶粉堆积体积和表观形貌的影响  

Effects of activated modification on stacking volume and apparent morphology of FWRP

作　　者：刘广永[1] 李雪健[1] 李旭宁 成垦 龚瑞歆 邓炜航 邱桂学[1] LIU Guangyong1, LI Xuejian1 , LI Xuning2 , CHENG Ken2, GONG Ruixin2 ,DENG Weihang2, QIU Guixue1(1.Key Laboratory of Rubber Plastics of Ministry of Education ,Qingdao University of Science and Technology, Qingdao 266042, China ; 2. China Gezhouba Group Liiyuan Technology Co., Ltd., Shenzhen 518052,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 [2]中国葛洲坝集团绿园科技有限公司,广东深圳518052

出　　处：《弹性体》2018年第5期39-43,共5页China Elastomerics

基　　金：山东省自然科学基金项目(ZR2017BEM015)

摘　　要：采用机械力剪切作用对冷冻胶粉进行活化改性,以提高冷冻胶粉的表面活性,分别研究了活化温度(15~130℃)和时间(5~15min)对冷冻胶粉堆积体积和表观形貌变化的影响规律。结果表明,冷冻胶粉在60℃活化时堆积体积变化率最大,且随着活化温度的升高,堆积体积逐渐减小。经过活化处理后,冷冻胶粉颗粒之间形成"胶粉聚集体",并且该"胶粉聚集体"之间存在大量的空洞,从而导致冷冻胶粉的堆积体积增加。Activated modification of the frozen waste rubber powder（FWRP） was conducted by using mechanical shearing force in order to improve its surface activity, and the effects of activation temperature（15-130℃） and time（5-15 min） on the stacking volume and apparent morphology of FWRP were studied in this work. The results showed that FWRP exhibits the maximum rate of stacking volume change at 60℃ and further decreases with an increase of activation temperature.After activation treatment, the FWRP particles form many ＂FWRP aggregates＂ containing lots of holes which increase the stacking volume.

关 键 词：冷冻胶粉 堆积体积 表观形貌 活化改性 

分 类 号：TQ335[化学工程—橡胶工业]