液体再生胶在输送带覆盖胶中的应用  

Application of liquid recycled rubber in conveyor belt covering rubber

作　　者：刘显贞 顾兆磊 李慧 史金炜 陈琪[1] LIU Xianzhen;GU Zhaolei;LI Hui;SHI Jinwei;CHEN Qi(Rubber and Plastic Materials and Engineering Key Laboratory of Minisstry of Education,School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Suqian Green Gold Giant Rubber&Plastic Machinery Co.Ltd.,Suqian 223800,China)

机构地区：[1]青岛科技大学高分子科学与工程学院橡塑材料与工程教育部重点实验室,山东青岛266042 [2]宿迁绿金人橡塑机械有限公司,江苏宿迁223800

出　　处：《弹性体》2024年第1期50-56,共7页China Elastomerics

基　　金：国家重点研发计划项目(2022YFD2301202)。

摘　　要：将不同工艺制得的两种再生胶加入输送带覆盖胶,研究了不同门尼黏度再生胶及其用量对输送带覆盖胶性能的影响。结果表明,随着再生胶用量的增加,混炼胶的正硫化时间变短,转矩差变小,Payne效应变强;硫化胶的硬度、拉伸强度、定伸应力下降,拉断伸长率上升,耐磨性能下降,疲劳温升和耐屈挠性上升。液体再生胶门尼黏度低,对混炼胶硫化曲线中的转矩差影响更大,Payne效应变小,拉伸强度和拉断伸长率增加,耐磨性能下降,耐屈挠性增加。Adding two kinds of recycled rubber made by different processes to conveyor belt cover rubber,the effects of different Mooney viscosity reclaimed rubber and its dosage on the performance of conveyor belt cover rubber were investigated.The results show that with the increase of the amount of recycled rubber,the optimum cure time of the mixed rubber becomes shorter,the torque difference becomes smaller,and the Payne effect becomes stronger;the hardness,tensile strength,and percent modulus of the vulcanized rubber decreases,the elongation at pull-off rises,the abrasion resistance decreases,the fatigue temperature rise rises,and the flexibility resistance rises.Liquid recycled rubber Mooney viscosity is low,the torque difference in the vulcanization curve of the mixing rubber has a greater influence,the Payne effect becomes smaller,the tensile strength and elongation increase,abrasion resistance decreases,and the flexural resistance increases.

关 键 词：液体再生胶 溶胶含量 门尼黏度 PAYNE效应 

分 类 号：TQ335[化学工程—橡胶工业]