一种具有早期耐水性的水性丙烯酸涂料及其制备方法和应用
By modifying rutile titanium dioxide with a compound silane coupling agent of KH-570 and A-151 and using a dual particle size dispersion process, the problem of insufficient early water resistance of water-based acrylic coatings was solved, and the density and hydrophobicity of the coating film were synergistically improved, making it suitable for outdoor coating construction in areas with variable climates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING WAN YUN HUA RUI CHEM CO LTD
- Filing Date
- 2026-03-20
- Publication Date
- 2026-07-17
AI Technical Summary
Water-based acrylic coatings have insufficient water resistance in the early stages of outdoor construction, and problems such as whitening, blistering, and peeling are prone to occur before the coating film is fully cured, which limits their application, especially in areas with variable climates.
Surface modification of rutile titanium dioxide was carried out using a compound silane coupling agent of KH-570 and A-151, and combined with a stepwise dispersion process of dual-particle-size pigments to prepare water-based acrylic coatings with early water resistance. KH-570 provides chemical binding sites and A-151 constructs a hydrophobic siloxane network, thereby improving the interfacial adhesion and hydrophobicity of the coating film.
It significantly improves the early water resistance of waterborne acrylic coatings, and the coating density and interfacial hydrophobicity are synergistically enhanced, extending the water molecule penetration path and improving the waterproof performance of the coating.
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Abstract
Citation Information
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