应用化学 ›› 2025, Vol. 42 ›› Issue (5): 684-692.DOI: 10.19894/j.issn.1000-0518.240363

• 研究论文 • 上一篇    下一篇

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

周天翊1, 张小虎2, 胡广利2, 刘三荣3, 毕吉福2,3()   

  1. 1.华东理工大学材料科学与工程学院,上海 200237
    2.广东粤港澳大湾区黄埔材料研究院,航空轮胎大科学中心,广州 510700
    3.中国科学院长春应用化学研究所,高分子科学与技术全国重点实验室,长春 130022
  • 收稿日期:2024-11-11 接受日期:2025-04-01 出版日期:2025-05-01 发布日期:2025-06-05
  • 通讯作者: 毕吉福
  • 基金资助:
    高分子物理与化学全国重点实验室基金项目(PPCL2023-19);173基础加强计划项目(2023-JCJQ-JJ-1080);国家科技重大专项(2024ZD0603200)

The Relationships Between Different Parameters of Visco-Elastic Testing for Nano-Composites of Butadiene-Isoprene Copolymers

Tian-Yi ZHOU1, Xiao-Hu ZHANG2, Guang-Li HU2, San-Rong LIU3, Ji-Fu BI2,3()   

  1. 1.School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China
    2.Huangpu Institute of Materials,Center for Aircraft Tire Science,Guangzhou 510700,China
    3.State Key Laboratory of Polymer Science and Technology,Changchun Institute of Applied Chemistry Chinese Academy of Sciences,Changchun 130022,China
  • Received:2024-11-11 Accepted:2025-04-01 Published:2025-05-01 Online:2025-06-05
  • Contact: Ji-Fu BI
  • About author:bijifu@ciac.ac.cn
  • Supported by:
    the Research Project of the State Key Laboratory of Polymer Physics and Chemistry(PPCL2023-19);173 Basic Strengthening Program(2023-JCJQ-JJ-1080);National Science and Technology Major Project(2024ZD0603200)

摘要:

以不同门尼黏度(MV)的稀土丁二烯-异戊二烯(BIR)聚合物为基础,研究了BIR应用中聚合物及其在加工中不同阶段的流变学参数之间的关系。 结果表明,BIR门尼黏度(MVraw rubber)与其门尼松弛曲线下的面积A的关系为MVraw rubber=72.39lg A-129.76,其决定系数R2为0.989; 而MVraw rubber和爬行时间(τrep)对应的频率(fc)之间关系为MVraw rubber=-30.205lg fc+24.97,其决定系数R2为0.9872; MVraw rubber决定了BIR-纳米复合材料的门尼黏度(MVcompound),不同黏度相关的参数MVraw rubber、MVcompound、硫化测试中的最小扭矩(ML)和100%应变下的模量(Gγ'=100%)之间具有线性关系,其中MVcompound与交联过程测试中的ML和Gγ'=100%之间的决定系数R2为0.9474和0.9540,其他任意2个参数之间R2在0.9722~0.9908之间; MVraw rubber对BIR聚合物的早期焦烧行为具有一定的影响,门尼黏度越高,早期焦烧时间越短,同时交联后扭矩越大,但门尼黏度对交联反应速率参数几乎没有影响,所有参数与其R2均在0.1以下。

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

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 τrepfc) 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 Gγ'=100% display linear relationships; the R2 of MVcompound with MLand Gγ'=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.

Key words: Butadiene-isoprene copolymers, Nano composites, Rheological measurement, Viscoelastic parameters

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