Title: Preparation of modified silica superhydrophobic coating for exterior wall decoration and its stain resistance

Authors: Lili Chen

Addresses: Department of Architecture and Civil Engineering, Hope College of Southwest Jiaotong University, Chengdu, 610400, Sichuan, China

Abstract: In order to optimise the application of modified silica superhydrophobic coating for building exterior wall decoration, the research on the preparation of modified silica superhydrophobic coating and its pollution resistance was carried out. First, select material to prepare modified nano SiO₂ particles. Then, use the modified nano SiO₂ particles, PVDF and DMF components with excellent superhydrophobic properties of modified silica coating preparation. Finally, explore the influence of different SiO₂ particles on the performance of coating and coating on different substrate film drying time and stain resistance. The test results show that when the SiO₂ particle addition amount is 80 wt% and the matrix is horse mouth iron, the superhydrophobic performance, wear resistance and stain resistance of the coating reach the best.

Keywords: building exterior wall decoration; modified silica; super hydrophobic coating; stain resistance.

DOI: 10.1504/IJMMP.2025.143423

International Journal of Microstructure and Materials Properties, 2025 Vol.18 No.1/2, pp.59 - 72

Received: 25 Apr 2024
Accepted: 07 Aug 2024
Published online: 19 Dec 2024 *

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