Toughening Recycled Waste Rubbers by Dynamic Interactions for Stress Deconcentration

Hao-Jia Guo; Zhou-Liang Wu; Shuang-Quan Liao; Ming-Chao Luo

doi:10.1007/s10118-025-3489-1

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Toughening Recycled Waste Rubbers by Dynamic Interactions for Stress Deconcentration

RESEARCH ARTICLE | Updated：2026-01-13

- Toughening Recycled Waste Rubbers by Dynamic Interactions for Stress Deconcentration
- Chinese Journal of Polymer Science Vol. 44, Issue 1, Pages: 234-241(2026)
- Affiliations：
  
  School of Materials Science and Engineering, Hainan University, Haikou 570228, China
- Author bio：
  
  mchluo@hainanu.edu.cn
- Funds：
- DOI：10.1007/s10118-025-3489-1
  CLC：
- Received：29 September 2025，
  
  Revised：2025-10-10，
  
  Accepted：22 October 2025，
  
  Published Online：25 December 2025，
  
  Published：15 January 2026
- Accepted：
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Guo, H. J.; Wu, Z. L.; Liao, S. Q.; Luo, M. C. Toughening recycled waste rubbers by dynamic interactions for stress deconcentration. Chinese J. Polym. Sci. 2026, 44, 234–241

Hao-Jia Guo, Zhou-Liang Wu, Shuang-Quan Liao, et al. Toughening Recycled Waste Rubbers by Dynamic Interactions for Stress Deconcentration[J]. Chinese Journal of Polymer Science, 2026, 44(1): 234-241.
Guo, H. J.; Wu, Z. L.; Liao, S. Q.; Luo, M. C. Toughening recycled waste rubbers by dynamic interactions for stress deconcentration. Chinese J. Polym. Sci. 2026, 44, 234–241 DOI： 10.1007/s10118-025-3489-1.

Hao-Jia Guo, Zhou-Liang Wu, Shuang-Quan Liao, et al. Toughening Recycled Waste Rubbers by Dynamic Interactions for Stress Deconcentration[J]. Chinese Journal of Polymer Science, 2026, 44(1): 234-241. DOI： 10.1007/s10118-025-3489-1.

摘要

When recycled wasted rubber (WR) is subjected to external stress

the loads are redistributed across a broad region of adjacent regions instead of being concentrated on a limited length scale

which resists crack propagation.

Abstract

Recycling of waste rubber (WR) is crucial for the sustainable development of the rubber industry. The enhancement of interfacial interactions is the main strategy for waste polymer recycling. However

there is a lack of methods for enhancing the interfacial interactions for WR recycling because WR contains abundant inert C―H bonds. Herein

we designed thioctic acid inverse vulcanization copolymers to endow recycled WR with dynamic disulfide interfacial interactions

significantly improving the mechanical properties of recycled WR. These disulfide interfacial interactions among the recycled WR tend to exchange

which dramatically increases the fractocohesive length and prevents stress concentration near the crack tips. When recycled WR is subjected to external stress

the loads are redistributed across a broad region of adjacent regions instead of being concentrated on a limited length scale

which resists crack propagation. This work effectively recycled WR

providing a strategy for solvent-free reaction-derived inverse vulcanization copolymers to improve the toughness of WR recycling.

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references

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