Fluorine-free waterproof coating material and preparation method thereof

The fluorine-free waterproof coating material prepared through scientific formulation and process optimization solves the problems of poor environmental performance and limited performance in existing technologies, realizing a multifunctional, high-performance waterproof coating material suitable for optical, display and construction fields.

CN122279486APending Publication Date: 2026-06-26伍贺峰

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
伍贺峰
Filing Date
2026-03-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing fluorine-free waterproof coating materials suffer from poor environmental performance, limited functionality, poor wear resistance, weak adhesion, insufficient light transmittance, and poor weather resistance, making it difficult to meet the multifunctional and high-performance requirements of various fields such as optics, display, and architecture.

Method used

A fluorine-free waterproof coating material is prepared by using a scientifically proportioned mixture of components such as polydimethylsiloxane, composite silane coupling agent, hydrophobic reinforcing agent, wear-resistant reinforcing agent, antioxidant stabilizer, crosslinking promoter, film-forming aid, and weather-resistant modifier, through a vacuum gradient segmented stirring and segmented constant temperature curing process, forming a dense, multifunctional film layer.

Benefits of technology

It achieves green environmental protection and multi-functional performance optimization, and has the characteristics of high waterproofness, strong wear resistance, high light transmittance, strong substrate adhesion, high and low temperature resistance, and anti-yellowing. It is suitable for multiple fields such as optics, display, and construction, and is compatible with existing coating equipment, which facilitates industrial promotion.

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Abstract

This invention discloses a fluorine-free waterproof coating material and its preparation method, comprising the following components in parts by weight: 55-75 parts polydimethylsiloxane, 12-22 parts composite silane coupling agent, 3-6 parts hydrophobic reinforcing agent, 2-5 parts wear-resistant reinforcing agent, 1-4 parts antioxidant stabilizer, 0.5-2 parts crosslinking accelerator, 0.3-1.5 parts film-forming aid, and 0.2-1.2 parts weather-resistant modifier. The coating material is completely free of fluorine compounds, and after film formation using a resistive evaporation coating machine, the film thickness is 20-30 nm, with an initial water droplet angle ≥113°. All components of the coating material of this invention are free of fluorine compounds, fundamentally solving the problems of traditional fluorine-containing materials being difficult to degrade, posing health risks, and being restricted by environmental regulations. It meets the requirements of global environmental regulations and brand environmental commitments, and is a green and environmentally friendly product with broad market application prospects.
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