您好，欢迎访问中国热带农业科学院 机构知识库！
中国热带农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Optimizing Sulfur Vulcanization for Enhanced Mechanical Performance of Hevea Latex-Dipped Film: Insights from AFM PeakForce Quantitative Nanomechanical Mapping

文献类型： 外文期刊

作者： Payungwong, Narueporn 1 ; Cheng, Han 3 ; Nakajima, Ken 4 ; Ho, Chee-Cheong 5 ; Sakdapipanich, Jitladda 1 ;

作者机构： 1.Mahidol Univ, Fac Sci, Dept Chem, Rubber Res Grp, Nakhon Pathom 73170, Thailand

2.Mahidol Univ, Fac Sci, Ctr Excellence Innovat Chem, Nakhon Pathom 73170, Thailand

3.Chinese Acad Trop Agr Sci, Rubber Res Inst, Natl Key Lab Trop Crop Breeding, Haikou 571101, Peoples R China

4.Tokyo Inst Technol, Sch Mat & Chem Technol, Dept Chem Sci & Engn, Ookayama 2-12-1,Meguro Ku, Tokyo 1528550, Japan

5.Univ Tunku Abdul Rahman, Fac Sci, Sungai Long Campus, Kajang 43000, Malaysia

关键词： Natural rubber; Sulfur vulcanization; Film formation; Nanomechanical properties; Non-rubber components; Proteins and phospholipids

期刊名称：CHINESE JOURNAL OF POLYMER SCIENCE （ 影响因子：4.0； 五年影响因子：3.5 ）

ISSN： 0256-7679

年卷期： 2025 年 43 卷 1 期

页码：

收录情况： SCI

摘要： This study delves into the pivotal role of sulfur vulcanization in defining the mechanical characteristics of natural rubber (NR) latex-dipped products. Utilizing sulfur vulcanization, known for its operational simplicity and cost-effectiveness, we examine its ability to enhance product elasticity and mechanical strength through various sulfidic bond formations such as mono-, di-, and polysulfidic bonds. Different vulcanization systems and sulfur contents were evaluated for their influence on the mechanical attributes of latex films, employing three types of NR latex, namely concentrated NR (CNR), deproteinized NR (DPNR), and small rubber particle NR (SRP), each representing distinct non-rubber components (NRCs). The study utilized advanced atomic force microscopy (AFM) equipped with PeakForce Quantitative Nanomechanical Mapping (QNM) to visualize and measure Young's modulus distribution across the film of pre-vulcanized latex. Our findings reveal that films by CNR processed using the conventional vulcanization (CV) system exhibited enhanced tensile strength and elongation at break. It even showed a lower crosslink density than those processed using the efficient vulcanization (EV) system. Interestingly, DPNR films showed a more uniform distribution of Young's modulus, correlating well with their superior mechanical strength. In contrast, SRP films showed excessive network structure formation in the particles due to accelerated vulcanization rates, hampering subsequent post-vulcanization interparticle crosslinking in film formation and remaining more rigid. The overall results Illustrate clearly that the ultimate mechanical properties of the latex films are strongly dependent on the type of sulfidic bonds formed. This research reveals further the very intricate relationship between the vulcanization methods, sulfur content, and latex type in optimizing the mechanical performance of NR latex products. It provides valuable insights for industry practices aimed at improving the quality and performance of latex-dipped goods.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国热带农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台