Preparation of “needle-like” acid-activated sepiolite for enhancing fluororubber’s mechanical and heat resistance performance

IF 5.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2025-01-16 DOI:10.1016/j.eurpolymj.2024.113638

Wenjie Tan , Yili Wei , Yiwen Zhang , Ping Shen , Hua Tu , Yurou Chen , Jun Li , Shun Wang , Yadong Wu , Huile Jin

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引用次数: 0

Abstract

To improve the interfacial interaction between natural sepiolite (SEP) and fluororubber (FKM), an acid-activated sepiolite (GSEP) was prepared by modifying the natural SEP in inorganic acid solution. The GSEP appear fine needle-like nanostructures and has relatively higher specific surface area (181 %), maximum N₂ adsorption capacity (218 %), and purity compared to SEP. The silanol groups on GSEP formed Si-C bonds with FKM, which increased the cross-linking density of the composites, thus enhancing the mechanical and thermal conductivity of the FKM. Compared to FKM, the tensile strength, modulus at 100 % strain, hardness and initial decomposition temperature of the FKM/GSEP-15 were increased by 259 %, 150 %, 11.7 % and 14.5 °C, respectively. This work provides a new strategy for preparation of high performance FKM with high heat dissipation and high mechanical properties.

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来源期刊

European Polymer Journal 化学-高分子科学

CiteScore

9.90

自引率

10.00%

发文量

691

审稿时长

23 days

期刊介绍： European Polymer Journal is dedicated to publishing work on fundamental and applied polymer chemistry and macromolecular materials. The journal covers all aspects of polymer synthesis, including polymerization mechanisms and chemical functional transformations, with a focus on novel polymers and the relationships between molecular structure and polymer properties. In addition, we welcome submissions on bio-based or renewable polymers, stimuli-responsive systems and polymer bio-hybrids. European Polymer Journal also publishes research on the biomedical application of polymers, including drug delivery and regenerative medicine. The main scope is covered but not limited to the following core research areas: Polymer synthesis and functionalization • Novel synthetic routes for polymerization, functional modification, controlled/living polymerization and precision polymers. Stimuli-responsive polymers • Including shape memory and self-healing polymers. Supramolecular polymers and self-assembly • Molecular recognition and higher order polymer structures. Renewable and sustainable polymers • Bio-based, biodegradable and anti-microbial polymers and polymeric bio-nanocomposites. Polymers at interfaces and surfaces • Chemistry and engineering of surfaces with biological relevance, including patterning, antifouling polymers and polymers for membrane applications. Biomedical applications and nanomedicine • Polymers for regenerative medicine, drug delivery molecular release and gene therapy The scope of European Polymer Journal no longer includes Polymer Physics.