Effects of Different Post-processing Treatments on the Structure and Properties of Constant-viscosity Natural Rubber

De-fan Zeng; Wen-feng Peng; Gao-rong Li; Yu-pan Li; Fu-quan Zhang; Xiao-xue Liao; Lu-sheng Liao; Jian-he Liao; Zhong-jun Dai

doi:10.11777/j.issn1000-3304.2026.26050

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Effects of Different Post-processing Treatments on the Structure and Properties of Constant-viscosity Natural Rubber

Research Article | 更新时间：2026-06-02

- Effects of Different Post-processing Treatments on the Structure and Properties of Constant-viscosity Natural Rubber
- Acta Polymerica Sinica Vol. 57, Issue 6, Pages: 1412-1420(2026)
- 作者机构：
  
  1.海南大学材料科学与工程学院海口 570288
  2.中国热带农业科学院农产品加工研究所海南省天然橡胶加工重点实验室湛江 524002
  3.云南合盛橡胶科技有限公司西双版纳 666100
- 作者简介：
  
  Xiao-xue Liao, E-mail: liaoxx26@163.com
  Lu-sheng Liao, E-mail: lsliao@catas.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.26050
  CLC：
- CSTR：32057.14.GFZXB.2026.7585
- Received：11 February 2026，
  
  Accepted：19 March 2026，
  
  Online First：19 May 2026，
  
  Published：20 June 2026
- 稿件说明：
移动端阅览
曾德范, 彭文凤, 李高荣, 李玉攀, 张福全, 廖小雪, 廖禄生, 廖建和, 戴忠峻. 加工工艺对恒黏天然橡胶结构与性能的影响. 高分子学报, 2026, 57(6), 1412-1420.

Zeng, D. F.; Peng, W. F.; Li, G. R.; Li, Y. P.; Zhang, F. Q.; Liao, X. X.; Liao, L. S.; Liao, J. H.; Dai, Z. J. Effects of different post-processing treatments on the structure and properties of constant-viscosity natural rubber. Acta Polymerica Sinica (in Chinese), 2026, 57(6), 1412-1420.
曾德范, 彭文凤, 李高荣, 李玉攀, 张福全, 廖小雪, 廖禄生, 廖建和, 戴忠峻. 加工工艺对恒黏天然橡胶结构与性能的影响. 高分子学报, 2026, 57(6), 1412-1420. DOI： 10.11777/j.issn1000-3304.2026.26050. CSTR： 32057.14.GFZXB.2026.7585.

Zeng, D. F.; Peng, W. F.; Li, G. R.; Li, Y. P.; Zhang, F. Q.; Liao, X. X.; Liao, L. S.; Liao, J. H.; Dai, Z. J. Effects of different post-processing treatments on the structure and properties of constant-viscosity natural rubber. Acta Polymerica Sinica (in Chinese), 2026, 57(6), 1412-1420. DOI： 10.11777/j.issn1000-3304.2026.26050. CSTR： 32057.14.GFZXB.2026.7585.

摘要

我国高端减震领域的恒黏天然橡胶(CV-NR)严重依赖进口，国产CV-NR与进口CV-NR的加工工艺相比存在差异，使得国产CV-NR的贮存稳定性较差，进而影响CV-NR的结构与性能. 本工作对CV-NR不打包、打包和干搅打包3种不同的加工工艺所得3种橡胶样品进行本征性能、微介观结构及硫化胶力学性能分析，研究加工工艺对CV-NR结构与性能的影响. 结果表明，打包处理不会影响CV-NR的本征性能和微介观结构，干搅打包处理会降低其门尼黏度、塑性初值、大凝胶含量、分子量和支化程度. 打包和干搅打包处理不会影响CV-NR的常规力学性能，干搅打包处理的CV-NR动态力学性能更好.

Abstract

High-end damping sector of China relies heavily on imported constant-viscosity natural rubber (CV-NR) products. Differences in processing technology between domestic and imported CV-NR lead to the poor storage stability of domestic CV-NR

which in turn affects its structure and properties. In this study

three distinct post-processing approaches

namely non-baling

baling

and dry-mixed baling

were applied to the CV-NR. The intrinsic properties

micro-mesoscopic structure

and mechanical properties of vulcanizates were characterized to investigate the effects of different processing techniques on the structure and properties of CV-NR. The results demonstrated that the baling treatment exerted no significant influence on the intrinsic properties and micro-mesoscopic structure of CV-NR. In contrast

dry-mixed baling treatment reduced the Mooney viscosity

plasticity initial value

macrogel content

molecular weight

and branching degree. Furthermore

both baling and dry-mixed baling treatments showed negligible effects on the conventional mechanical properties of CV-NR

whereas the dry-mixed baling treatment imparted superior dynamic mechanical properties to CV-NR.

关键词

Keywords

references

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