Impact of Thioamide Derivative Composite Preservation System on Vulcanization of Natural Rubber
Yuhang Hong, Liguang Zhao, Yazhong Song, Honghai Huang, Jianwei Li, Tuo Dai, Tao Zhao, Minmin Chen, Rentong Yu, Haoran Geng, Hongxing Gui, Jianhe Liao
TL;DR
A new thioamide derivative improves the preservation and vulcanization of natural rubber, making it faster and stronger.
Contribution
A novel thioacetamide derivative with pyridine and thioamide groups is shown to enhance vulcanization efficiency and mechanical properties of natural rubber.
Findings
TD significantly reduces vulcanization time and outperforms ETU, 3-HP, and TAA in efficiency.
TD and 3-HP together improve tensile strength, tear resistance, and hardness of vulcanized rubber.
TD increases energy storage modulus while maintaining low loss factor, enhancing rigidity without compromising flexibility.
Abstract
The thioacetamide derivative (TD)-composite preservation system (TDCPS) exhibits superior preservation effects on natural rubber (NR) latex and significantly enhances its vulcanization efficiency and mechanical properties. This study assessed TDCPS for NR, with a particular focus on its effects in promoting vulcanization. The TD containing both pyridine and thioamide groups was evaluated against other additives, namely thione accelerator ETU, pyridine 3-HP, and thioacetamide TAA. The results indicated that TD significantly reduced vulcanization time and enhanced efficiency, surpassing the moderate effects of ETU and 3-HP, as well as the minimal activity of TAA. Furthermore, TD and 3-HP demonstrated a synergistic effect in enhancing the properties of vulcanized NR, including elongation stress, tensile strength, tear resistance, and hardness, with TD achieving more rapid and complete…
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Taxonomy
TopicsPolymer Nanocomposites and Properties · Plant biochemistry and biosynthesis · Plant-Derived Bioactive Compounds