制备 KH550 接枝纳米二氧化硅微球以改善氟橡胶的机械、热和耐磨性能

IF 3.6 4区 材料科学 Q2 MATERIALS SCIENCE, COMPOSITES Journal of Thermoplastic Composite Materials Pub Date : 2024-03-08 DOI:10.1177/08927057241239004
Ping Shen, Yong Bao, Yiwen Zhang, Yadong Wu, Jun Li, Shun Wang, Yong Zhu, Junchang Gao, Huile Jin
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摘要

我们提出了一种创新方法来解决氟橡胶(FKM)在工业领域的机械性能限制。我们利用化学接枝法构建了一种接枝了氨基的新型功能化纳米二氧化硅球(SiO2)。通过对纳米二氧化硅微球进行表面改性,氨基功能化纳米二氧化硅微球与 FKM 之间形成了 C=N 键,促进了 SiO2 的高分散性和强界面结合,从而使 FKM 复合材料具有优异的机械增强功能。与原始 FKM 相比,FKM/SM-A-10 复合材料的拉伸强度和硬度分别显著提高了 242% 和 49%。此外,FKM/SM-A-10 复合材料的导热性也明显提高了 40%。事实证明,这种实现高性能 FKM 的简单而高效的制造方法为工业设计奠定了宝贵而实用的基础。
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Preparation of KH550-grafted-nanosilica microspheres to improve the mechanical, thermal and wear resistance properties of fluoroelastomer
We presents an innovative approach to addressing the mechanical properties limitations of fluororubber (FKM) in the industrial field. A novel functionalized nano-silica spheres (SiO2), grafted with amino groups, were constructed by utilizing chemical grafting. The surface modification of the nanosilica microspheres enables the formation of C=N bonds between the amino-functionalized nanosilica microspheres and FKM promoting high dispersion and strong interfacial bonding of SiO2, resulting in an exceptional mechanical enhancement function for FKM composite. Compared to original FKM, the FKM/SM-A-10 composite demonstrates remarkable improvements in both tensile strength and hardness by 242% and 49%, respectively. Additionally, there is a notable 40% enhancement in thermal conductivity of the FKM/SM-A-10 composite. This straightforward and efficient manufacturing approach for achieving high-performance FKM proves to be a valuable and practical foundation for industrial design.
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来源期刊
Journal of Thermoplastic Composite Materials
Journal of Thermoplastic Composite Materials 工程技术-材料科学:复合
CiteScore
8.00
自引率
18.20%
发文量
104
审稿时长
5.9 months
期刊介绍: The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).
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