Preparation of GO‐SiO2 three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

In this research, mercapto‐anchoring graphene oxide (GO) and epoxy‐anchoring SiO2 nanoparticles (NPs) were assembled by mercapto‐epoxy click chemistry to form three‐dimensional (3D) point‐plane structure nanomaterials (GO‐SiO2), and epoxy resin (EP) composites were prepared using the auxiliary therm...

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Bibliographic Details
Published in:Polymer composites 2024-01, Vol.45 (2), p.1266-1277
Main Authors: Hao, Qiguo, Zhang, Xu, Liu, Shuang, Peng, Hongjun, Zhang, Pengyu, Yu, Shengyang, Mao, Zhiyi
Format: Article
Language:English
Subjects:
Chemical synthesis
click chemistry
Composite materials
Dispersion
epoxy resin
Epoxy resins
Flexural strength
Graphene
Mechanical properties
mechanical property
Modulus of rupture in bending
Nanomaterials
Nanoparticles
Silicon dioxide
Tensile strength
three‐dimensional point plane
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Summary:In this research, mercapto‐anchoring graphene oxide (GO) and epoxy‐anchoring SiO2 nanoparticles (NPs) were assembled by mercapto‐epoxy click chemistry to form three‐dimensional (3D) point‐plane structure nanomaterials (GO‐SiO2), and epoxy resin (EP) composites were prepared using the auxiliary thermal blending method. The relationships among surface interfacial interaction, dispersion, and mechanical properties of composites were systematically investigated. The Research finding shows that SiO2 NPs covalently bonding with GO increases interface compatibility and dispersion, which explains epoxy composite strengthening. Compared to epoxy resin, 0.1 wt% GO‐SiO2/EP composite has 38.65%, 36.15%, 44.64%, and 61.61% higher tensile strength, flexural strength, flexural modulus, and impact strengths. The enhancement mechanism of GO‐SiO2 toward EP was analyzed. Schematic diagram of 3D point plane structure.
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.27851