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Carboxymethyl chitosan-capped nanoparticles for the preparation of epoxidized rubber dipped products with chemical resistance, barrier and antibacterial properties

文献类型： 外文期刊

作者： Huang, Shenbo 1 ; Luo, Zirong 1 ; Yang, Yuxia 2 ; Li, Shuang 1 ; Zhang, Jizhen 1 ; Kong, Na 1 ; Tan, Shaozao 2 ; Li, Jihua 3 ; Tao, Jinlong 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Hainan Prov Key Lab Nat Rubber Proc, Zhanjiang 524001, Peoples R China

2.Jinan Univ, Coll Chem & Mat Sci, Guangdong Engn & Technol Res Ctr Graphene Like Mat, Dept Chem, Guangzhou 510632, Peoples R China

3.Chinese Acad Trop Agr Sci, Rubber Res Inst, Haikou 571101, Peoples R China

关键词： Concentrated epoxidized natural rubber latex; Rubber composites; Antibacterial properties; Barrier properties; Chemical resistance

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 308 卷

页码：

收录情况： SCI

摘要： Epoxidized natural rubber (ENR), a kind of bio-elastomer, exhibits favorable elasticity, gas tightness and solvent resistance, thereby demonstrating considerable potential for utilization in the rubber industry. However, producing ENR latex products poses significant challenges due to the low dry rubber content and high surfactant concentration in ENR latex. This study addresses these challenges by employing superabsorbent polymer beads as concentration agents to prepare concentrated ENR latex. Additionally, carboxymethyl chitosan is utilized as a bridging agent to securely bind ENR with manganese silicate nanoparticles through the formation of hydrogen bonds. The resulting composite material-based dipped film retains the inherent properties of ENR while exhibiting stable mechanical performance, even exposure to various disinfectants. Notably, the composites exhibit remarkable barrier capabilities and antibacterial properties, effectively disrupting the cellular structures of diverse bacterial species and promoting the healing of infected wounds. Furthermore, this research provides a set of standardized testing methods for rubber-based antibacterial products. These advancements underscore the distinct advantages of the ENR latex production process, highlighting its simplicity, cost-effectiveness, and potential for commercialization due to the affordability of the raw materials.

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