化工新型材料

化工新型材料 ›› 2023, Vol. 51 ›› Issue (12) : 143-147. DOI: 10.19817/j.cnki.issn1006-3536.2023.12.051

新材料与新技术

二氧化硅/玻璃鳞片协同增强的环氧树脂耐磨性研究

张瑞珠, 魏常涛, 王彬亚, 孙中一, 张国钰

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Study on the wear resistance of SiO₂/glass flakes synergistically enhanced epoxy resin

Zhang Ruizhu, Wei Changtao, Wang Binya, Sun Zhongyi, Zhang Guoyu

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文章历史 +

Received		Published
2023-05-22		2023-12-20
Issue Date	Revised Date
2023-12-27	2023-05-22

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摘要

以环氧树脂(EP)为基体,通过添加玻璃鳞片(GF)和改性纳米SiO₂制备了SiO₂/GF/EP复合涂料,考察了纳米SiO₂添加量对复合涂料性能的影响,通过傅里叶变换红外光谱仪和扫描电子显微镜对涂层的结构和断面形貌进行了表征。结果表明:利用硅烷偶联剂对纳米SiO₂进行改性处理,在其表面引入了可与环氧基团反应的氨基基团;当纳米SiO₂添加量为5%(质量分数)、GF添加量为30%(质量分数)时,复合涂层的硬度比纯EP提高了57.7%,磨损失重和摩擦系数比纯EP减小了57.0%、49.3%;改性纳米SiO₂和GF与EP基体界面相容性良好,与纯EP相比,SiO₂/GF/EP复合涂层的韧性和致密性明显提高。

Abstract

SiO₂/GF/EP composite coatings were prepared by adding glass flakes (GF) and modified nano-SiO₂ using epoxy resin (EP) as the matrix.The effect of nano-SiO₂ addition on the performance of composite coatings was investigated,and the structure and cross-sectional morphology of the coatings were characterized by Fourier transform infrared spectroscopy and scanning electron microscopy.The results showed that the nano-SiO₂ was modified by silane coupling agent,and an amino group that could react with epoxy groups was introduced on its surface.When the amount of nano-SiO₂ was 5% (mass fraction) and the GF addition was 30%,the hardness of the composite coating was increased by 57.7% compared with pure EP,and the wear loss weight and friction coefficient were reduced by 57.0% and 49.3%,respectively,compared with pure EP.The modified nano-SiO₂ and GF had good interface compatibility with the EP matrix,and the toughness and densification of SiO₂/GF/EP composite coatings were significantly improved compared with pure EP.

关键词

纳米二氧化硅 / 玻璃鳞片 / 环氧树脂 / 硬度 / 耐磨性 / 摩擦系数

Key words

nano-SiO₂ / glass flake / epoxy resin / hardness / wear resistance / coefficient of friction

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二氧化硅/玻璃鳞片协同增强的环氧树脂耐磨性研究[J]. 化工新型材料, 2023, 51(12): 143-147 DOI:10.19817/j.cnki.issn1006-3536.2023.12.051

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