Design and Preparation of Hydrophobic Silica Particles and Study on Modified Epoxy Resin

Bo Peng; Jin Yang; Cheng-hao Yang

doi:10.11777/j.issn1000-3304.2023.23151

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Design and Preparation of Hydrophobic Silica Particles and Study on Modified Epoxy Resin

Research Article | 更新时间：2024-03-28

- Design and Preparation of Hydrophobic Silica Particles and Study on Modified Epoxy Resin
- Acta Polymerica Sinica Vol. 54, Issue 12, Pages: 1844-1856(2023)
- 作者机构：
  
  1.暨南大学环境与气候研究院广州 511443
  2.华南理工大学轻工科学与工程学院造纸与污染控制国家工程研究中心制浆造纸国家重点实验室广州 510640
  3.Ira A. Fulton Schools of Engineering， Arizona State University Phoenix 85281
- 作者简介：
  
  Jin Yang, E-mail: yangjin@scut.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2023.23151
  CLC：
- Published：20 December 2023，
  
  Published Online：24 October 2023，
  
  Received：02 June 2023，
  
  Accepted：14 August 2023
扫描看全文
彭勃,杨进,杨程皓.疏水SiO₂粒子的设计、制备及改性环氧树脂的研究[J].高分子学报,2023,54(12):1844-1856.

Peng Bo,Yang Jin,Yang Cheng-hao.Design and Preparation of Hydrophobic Silica Particles and Study on Modified Epoxy Resin[J].Acta Polymerica Sinica,2023,54(12):1844-1856.
彭勃,杨进,杨程皓.疏水SiO₂粒子的设计、制备及改性环氧树脂的研究[J].高分子学报,2023,54(12):1844-1856. DOI： 10.11777/j.issn1000-3304.2023.23151.

Peng Bo,Yang Jin,Yang Cheng-hao.Design and Preparation of Hydrophobic Silica Particles and Study on Modified Epoxy Resin[J].Acta Polymerica Sinica,2023,54(12):1844-1856. DOI： 10.11777/j.issn1000-3304.2023.23151.

摘要

为了制备具有稳定超疏水性能的水性环氧树脂，以3-氨丙基三乙氧基硅烷(KH550)、

-缩水甘油醚氧丙基三甲氧基硅烷(KH560)的碱性水解反应为基础，制备不同粒径(微米、亚微米、纳米)的改性二氧化硅，通过层层组装的接枝反应制备出具有多尺度效应的草莓状SiO

多重粒子. 同时，作为对比，制备表面光滑的单包覆层的疏水SiO

. 通过红外光谱(FTIR)、核磁共振氢谱(NMR)、高分辨质谱(HRMS)等测试手段表征其结构，解析两类粒子的微观形貌和表面性能的异同. 将自制改性粒子与水性环氧树脂WEP共混，在涂层表面构建粗糙的微纳结构，制备具有超疏水性能的水性环氧树脂涂料. 采用示差扫描量热分析(DSC)和热重分析(TGA)表征涂料的共混性能及耐热性能；采用扫描电镜(SEM)和原子力测试(AFM)量化分析涂层特征及其表面形貌；采用接触角测试(WCA)表征水性涂层的超疏水性能及其表面能的变化规律. 结果显示，相对于单层包覆的光滑粒子，多层次结构的改性SiO

粒子迁移到环氧树脂表面，构建的微纳结构更有利于超疏水性能的形成，涂层具有明显的自清洁效应，而形成的粗糙涂层表面在苛刻环境中保持了结构的稳定性和持久性，体现出优异的耐磨和耐化学腐蚀性能.

Abstract

To prepare a water-based epoxy resin with stable superhydrophobicity

we need to prepare the silica with different particle sizes (micron

submicron

nanometer) based on the alkaline hydrolysis reaction of 3-aminopropyltriethoxysilane (KH550)

γ‍

-glycidyloxypropyltrimethoxysilane (KH560) and methyltrimethoxysilane (MTMS). Strawberry-like SiO

(CM-SiO

) multiple particles with multi-scale effect were then synthesized through the grafting reaction of layer-by-layer assembly. At the same time

as a comparison

the single-coated hydrophobic SiO

with a smooth surface was prepared. The morphology and structure of the two types of particles were characterized by Fourier transform infrared spectroscopy (FTIR)

nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS)

while the similarities and differences can also be compared. The self-made modified particles were blended with water-based epoxy resin (WEP) to construct a rough micro-nano structure on the surface of the coating to prepare a water-based epoxy resin coating with superhydrophobic properties. Differential scanning calorimetry (DSC) and thermo gravimetric analyzer (TGA) were applied to characterize the blending performance and heat resistance of coatings. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used to quantitatively analyze the characteristics of the coating and its surface morphology. The superhydrophobic properties of the waterborne coatings and the variation of surface energy were characterized by the contact angle test (WCA). The results show that compared with the smooth particles coated with a single layer

the modified SiO

particles with multi-layer structure migrated to the surface of WEP and constructed the micro-nano structure

which is more conducive to the formation of superhydrophobicity. In addition

the rough coating has an excellent self-cleaning effect and can maintain the stability and durability of the structure in harsh environments

reflecting excellent abrasion resistance and chemical corrosion resistance.

关键词

粒子设计水性环氧树脂超疏水微纳结构自组装

Keywords

Particles designWater-based epoxy resinSuperhydrophobicityMicro-nano structureSelf-assembly

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State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology

Department of Polymer Science and Engineering, University of Massachusetts, Amherst

Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology

College of Textile Science and Engineering, Jiangnan University

School of Materials Science and Engineering, East China University of Science and Technology

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