|本期目录/Table of Contents|

[1]黄 鑫,公维颖,邓 涛.两相共混复数黏度比对丙烯酸酯橡胶/聚甲醛热塑性硫化胶相态及性能的影响[J].合成橡胶工业,2025,02:123-128.
　HUANG Xin,GONG Wei-ying,DENG Tao.Effect of two-phase blend complex viscosity ratio on phase state and properties of acrylate rubber/polyformaldehyde thermoplastic vulcanizate[J].China synthetic rubber industy,2025,02:123-128.
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两相共混复数黏度比对丙烯酸酯橡胶/聚甲醛热塑性硫化胶相态及性能的影响(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:10-2023/TQ]

期数:
2025年02
页码:
123-128
栏目:
出版日期:
2025-03-15

文章信息/Info

Title:
Effect of two-phase blend complex viscosity ratio on phase state and properties of acrylate rubber/polyformaldehyde thermoplastic vulcanizate
文章编号:
1000-1255（2025）02-0123-06
作者:
黄 鑫; 公维颖; 邓 涛
青岛科技大学 高分子科学与工程学院，山东 青岛 266042
Author(s):
HUANG Xin;  GONG Wei-ying;  DENG Tao
School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
关键词:
热塑性硫化胶; 丙烯酸酯橡胶; 聚甲醛; 复数黏度比; 相态; 物理机械性能; 动态力学性能; 应力松弛
Keywords:
thermoplastic vulcanizate;  acrylate rubber;  polyformaldehyde;  complex viscosity ratio;  phase state;  physical and mechanical property;  dynamic mechanical property;  stress relaxation
分类号:
TQ 334.1
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2025.02.0123
文献标识码:
A
摘要:
通过调整加工温度对丙烯酸酯橡胶（ACM）相及聚甲醛（POM）相的共混复数黏度比进行调控，研究共混复数黏度比对ACM/POM热塑性硫化胶（TPV）相态和物理机械性能、应力松弛性能、动态力学性能及耐老化性能的影响。结果表明，加工温度从170 ℃升高至190 ℃时两相的共混复数黏度比增大了47%；共混复数黏度比的增大对ACM相在体系中的剪切破碎和团聚作用、相畴都有明显影响，可以减少ACM颗粒的团聚作用，使TPV的定伸应力下降；当共混复数黏度比为28.62时，TPV的拉伸强度增高到11.9 MPa、扯断伸长率增加到234%，同时在80~140 ℃温度范围内的滞后损失最小；当共混复数黏度比为23.30时，TPV的应力松弛性能保持率最高、松弛速率最小、耐热空气和热油性能最佳。
Abstract:
The blend complex viscosity ratio of acrylate rubber(ACM) phase and polyformaldehyde (POM) phase was regulated by adjusting the proces-sing temperature. The effects of complex viscosity ratio on phase state, physical and mechanical pro-perties, stress relaxation properties, dynamic mecha-nical properties and aging resistance of ACM/POM thermoplastic vulcanizate(TPV) were studied. The results showed that the complex viscosity ratio of two phases increased by 47% when the process temperature increases from 170 ℃ to 190 ℃. The increase of complex viscosity ratio had a significant effect on the shear breakage, agglomeration and phase domain of ACM phase in the system, which could reduce the agglomeration of ACM particles and the tensile stress of TPV. When the complex viscosity ratio was 28.62, the tensile strength of TPV increased to 11.9 MPa, elongation at break increased to 234%, and hysteresis loss was minimized in the temperature range from 80 ℃ to 140 ℃. When the complex viscosity ratio was 23.30, the stress relaxation performance retention rate of TPV was the highest, relaxation rate was the smallest, and hot air and hot oil resistance were the best.

参考文献/References

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更新日期/Last Update: 1900-01-01