应用化学2025，Vol.42Issue(5)：684-692,9.DOI:10.19894/j.issn.1000-0518.240363
丁二烯-异戊二烯聚合物纳米复合材料中黏弹性测试及其参数间相关性
The Relationships Between Different Parameters of Visco-Elastic Testing for Nano-Composites of Butadiene-Isoprene Copolymers
摘要
Abstract
Based on butadiene-isoprene rubbers of different Mooney viscosities,the relationships of different rheological parameters for raw rubbers,uncured compounds and crosslinking reaction in the synthetic rubber application were studied.The results show that:Mooney viscosity of raw rubber,MVraw rubber,shows an exponential relationship with the area under the relaxation curve(A)(MVraw rubber=72.39lg A-129.76)and the frequency(MVraw rubber=-30.205lg fc+24.97)corresponding to τrep(fc)with the R2＞0.98.The Mooney viscosity of rubber composites,MVcompound,is dominated by MVraw rubber,and the relative parameters of MVraw rubber,MVcompound,ML and G'γ=100%display linear relationships;the R2 of MVcompound with ML and G'γ=100%are 0.9474 and 0.954,respectively;and the R2 for other parameters is between 0.9722 and 0.9908.The scorch behavior of rubber composites is influenced by molecular weight of raw rubber;the higher MVraw rubber results in short scorch time and higher torque,but it hardly affects the crosslinking rate(MCR),and the R2 between MCR and all other rheological parameters is below 0.1.关键词
稀土丁二烯-异戊二烯聚合物/纳米复合材料/流变测量学/黏弹性参数Key words
Butadiene-isoprene copolymers/Nano composites/Rheological measurement/Viscoelastic parameters分类
化学引用本文复制引用
周天翊,张小虎,胡广利,刘三荣,毕吉福..丁二烯-异戊二烯聚合物纳米复合材料中黏弹性测试及其参数间相关性[J].应用化学,2025,42(5):684-692,9.基金项目
高分子物理与化学全国重点实验室基金项目(No.PPCL2023-19),173基础加强计划项目(No.2023-JCJQ-JJ-1080)和国家科技重大专项(No.2024ZD0603200)资助 Supported by the Research Project of the State Key Laboratory of Polymer Physics and Chemistry(No.PPCL2023-19),173 Basic Strengthening Program(No.2023-JCJQ-JJ-1080)and National Science and Technology Major Project(No.2024ZD0603200) （No.PPCL2023-19）
