Natural Rubber Crosslinking Structure and Homogenization Stress Affected by Zinc 1,5-Pentylidene Dithiocarbamate

XIAO Xiao-kun; LIU Da-chen; ZHU Bo-cong; XUE Ao-nan; WANG Zhi-qiang

doi:10.14028/j.cnki.1003-3726.2024.23.232

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Natural Rubber Crosslinking Structure and Homogenization Stress Affected by Zinc 1,5-Pentylidene Dithiocarbamate

更新时间：2024-01-25

- Natural Rubber Crosslinking Structure and Homogenization Stress Affected by Zinc 1,5-Pentylidene Dithiocarbamate
- Polymer Bulletin Vol. 37, Issue 2, Pages: 238-244(2024)
- 作者机构：
  
  1..沈阳化工大学材料科学与工程学院，沈阳 110142
  2..蔚林新材料科技股份有限公司，濮阳 457000
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2024.23.232
  CLC：
- Published：20 February 2024，
  
  Received：06 July 2023，
  
  Accepted：28 July 2023
- 稿件说明：
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引用：肖小坤, 刘大晨, 朱博聪, 薛奥楠, 王志强. 促进剂1,5-亚戊基二硫代氨基甲酸锌赋予天然橡胶的交联结构及均化应力作用. 高分子通报, 2024, 37(2), 238–244

Citation: Xiao, X. K.; Liu, D. C.; Zhu, B. C.; Xue, A. N.; Wang, Z. Q. Natural rubber crosslinking structure and homogenization stress affected by zinc 1,5-pentylidene dithiocarbamate. Polym. Bull. (in Chinese), 2024, 37(2), 238–244
引用：肖小坤, 刘大晨, 朱博聪, 薛奥楠, 王志强. 促进剂1,5-亚戊基二硫代氨基甲酸锌赋予天然橡胶的交联结构及均化应力作用. 高分子通报, 2024, 37(2), 238–244 DOI： 10.14028/j.cnki.1003-3726.2024.23.232.

Citation: Xiao, X. K.; Liu, D. C.; Zhu, B. C.; Xue, A. N.; Wang, Z. Q. Natural rubber crosslinking structure and homogenization stress affected by zinc 1,5-pentylidene dithiocarbamate. Polym. Bull. (in Chinese), 2024, 37(2), 238–244 DOI： 10.14028/j.cnki.1003-3726.2024.23.232.

摘要

以1

5-亚戊基二硫代氨基甲酸锌(ZPDC)为促进剂，对天然橡胶(NR)的交联结构和均化应力作用进行研究。研究发现，促进剂ZPDC配合NR的硫化胶交联键以多硫键为主，对比于同类促进剂二正丁基二硫代氨基甲酸锌(BZ)具有更高含量的多硫键，赋予橡胶更好的均化应力作用，主要表现在抗撕裂性能的显著提升。此外，通过对NR配合促进剂ZPDC的硫化历程和力学性能的分析研究，发现适宜的硫化温度条件为120~130 ℃，用量为1.5~2.0 phr，硫化胶表现出最好的均化应力作用。

Abstract

The crosslinking structure and homogenization stress of natural rubber (NR) were studied by using zinc 1

5-pentyldithiocarbamate (ZPDC) as accelerator. It was found that the crosslinking bond of the vulcanizate of accelerator ZPDC combined with NR was mainly polysulfide bond. Compared with the similar accelerator zinc dibutyldithiocarbamate (BZ)

it had a higher content of polysulfide bond

which gave the rubber a better homogenizing stress effect

mainly in the significant improvement of tear resistance. In addition

through the analysis of the vulcanization process and mechanical properties of the NR compound accelerator ZPDC

the results show that the suitable vulcanization temperature conditions are 120–130 ℃

the amount of 1.5–2.0 phr

and the vulcanizate shows the best homogenization stress effect.

关键词

天然橡胶均化用力作用交联结构抗撕裂性能

Keywords

Natural rubberHomogenization force effectCrosslinking structureTear resistance

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