超声波脱硫新工艺制备轮胎胶粉再生胶及其性能研究  

Preparation of tire rubber powder recycled rubber by a new process of ultrasonic desulfurization and its performance study

作　　者：张小萍[1,2] 韦帮风 张航天 寇振扬 Zhang Xiaoping;Wei Bangfeng;Zhang Hangtian;Kou Zhenyang(Xuzhou College of Industrial Technology,Rubber Recycling Engineering Technology R&D Center of Jiangsu Province,Xuzhou 221140,Jiangsu,China;Department of Polymer Engineering,The University of Akron,Akron,OH 44325-0301,USA;Xuzhou Armour Rubber Co.LTD.,Xuzhou 221011,Jiangsu,China)

机构地区：[1]徐州工业职业技术学院,江苏省橡胶循环利用工程技术研发中心,江苏徐州221140 [2]Department of Polymer Engineering,The University of Akron,Akron,OH 44325-0301,USA [3]徐州徐轮橡胶有限公司,江苏徐州221011

出　　处：《橡塑技术与装备》2023年第6期18-23,共6页China Rubber/Plastics Technology and Equipment

基　　金：江苏省高校优秀中青年教师境外研修项目;徐州工业职业技术学院高水平院校建设专项(XGY2020HA02);江苏省高职院校青年教师企业实践培训项目(2022QY SJPX101)。

摘　　要：采用负载超声波发生装置的同向旋转双螺杆挤出机对40目废旧轮胎胶粉(GTR)进行超声波脱硫,对比研究了不施加超声波及不同超声波振幅作用下脱硫GTR(DGTR)的凝胶含量、流变性能、硫化特性以及DGTR硫化胶的力学性能。结果表明,在13μm超声波振幅作用下得到的DGTR的凝胶含量、黏度及储能模量最低,说明在该条件下交联键断裂数量最多,脱硫程度最高;在8μm超声波振幅作用下得到的DGTR脱硫程度最低,但在相同硫化配合剂用量下其硫化胶的拉伸强度和拉断伸长率最高,分别为8.26 MPa和192%。A co-rotating twin screw extruder with a loaded ultrasonic generator was used for ultrasonic desulfurization of 40 mesh waste tire rubber powder(GTR).The gel content,rheological properties,vulcanization properties and mechanical properties of desulfurized GTR(DGTR)vulcanizates without ultrasonic and with different ultrasonic amplitudes were compared.The results indicate that,the gel content,viscosity and storage modulus of DGTR obtained under the action of ultrasonic amplitude of 13 um are the lowest,indicating that the number of crosslinked bonds broken is the largest and the degree of desulfurization is the highest under this condition.The desulfurization degree of DGTR obtained under the action of 8 um ultrasonic amplitude is the lowest,but the tensile strength and elongation at break of its vulcanizate are the highest at the same amount of vulcanizing agent,with 8.26 MPa and 192%,respectively.

关 键 词：超声波脱硫 轮胎胶粉 凝胶含量 流变性能 硫化特性 力学性能 

分 类 号：TQ336.1[化学工程—橡胶工业]