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The Influence of Fresh Latex Coagulation on the Parameter Characteristics of the Yeoh Hyperelastic Constitutive Model for Natural Rubber

文献类型： 外文期刊

作者： Ding, Li 1 ; Huang, Honghai 2 ; Wang, Yuekun 2 ; Li, Jianwei 2 ; Gui, Hongxing 2 ; Chen, Yongping 1 ;

作者机构： 1.Hainan Univ, Sch Mat Sci & Engn, Haikou 570228, Peoples R China

2.Chinese Acad Trop Agr Sci, Rubber Res Inst, Haikou 570101, Peoples R China

3.Hainan Nat Rubber Technol Innovat Ctr, Haikou 571101, Peoples R China

关键词： natural rubber (NR); coagulation; constitutive model; Yeoh model; hyperelastic

期刊名称：POLYMERS （ 影响因子：4.9； 五年影响因子：5.2 ）

ISSN：

年卷期： 2024 年 16 卷 24 期

页码：

收录情况： SCI

摘要： The coagulation of fresh latex is one of the critical processes that impacts rubber quality during natural rubber processing. Constitutive relationships are the basis for the study of the mechanical properties of rubber materials and serve as a prerequisite for material simulation studies. However, studies on the effect of different coagulation methods on natural rubber constitutive relationships have yet to be carried out, and the current models used for natural rubber constitutive relationships need to be improved. In order to investigate the effects of different coagulation methods on the hyperelastic properties of natural rubber, the impact of natural coagulation, enzyme coagulation, acid coagulation, microbial coagulation, and enzyme-assisted microbial coagulation on the hyperelastic constitutive relationship of natural rubber were analyzed in detail based on tensile experiments and the Yeoh model. The results show that after introducing a strain rate-related factor, the Yeoh model can describe well the mechanical behavior of natural rubber carbon black composites in different deformation regions, and the rubber, studied with varying coagulation methods, exhibits different mechanical properties in different deformation regions. This study provides new evidence for the study of high-performance natural rubber and serves as a reference for process selection in the primary processing of natural rubber.

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