Anti-sagging waterproof coating and preparation method thereof
By introducing imidazole ring-modified silane polyether and fumed silica thixotropic agent into waterproof coatings, a three-dimensional network structure is formed, which solves the problem of sagging during the construction of waterproof coatings, achieves a balance between the stability and fluidity of the coating, and improves the overall performance of the coating.
CN121319755BActive Publication Date: 2026-05-01ANHUI SMART NEW MATERIALS CO LTD
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Patent Information
- Application Number
- CN202511602820.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-05-01
- Estimated Expiration
- 2045-11-04
AI Technical Summary
Technical Problem
Existing waterproof coatings are prone to sagging during large-area construction, which affects the coating effect.
Method used
A gel coating is formed by using silane-modified polyether containing an imidazole ring and a fumed silica thixotropic agent. The imidazole ring promotes the hydrolysis and condensation of siloxane and the formation of a three-dimensional network structure, enhancing cohesion and flow control. Combined with phosphoryl siloxane, it improves dispersibility.
Benefits of technology
It effectively prevents paint sagging, improves the uniformity and adhesion of paint components, ensures coating stability and flowability, and enhances the toughness and durability of the coating film.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses an anti-sagging waterproof coating and a preparation method thereof, and belongs to the technical field of waterproof coatings. The anti-sagging waterproof coating comprises the following raw materials in parts by mass: 30-50 parts of silane modified polyether, 5-10 parts of a thixotropic agent, 15-25 parts of a filler, 1-5 parts of a coupling agent and 0.5-2 parts of a water removing agent. The silane modified polyether has a mercaptoimidazole introduced into a polyether chain side chain. The thixotropic agent is fumed silica with a surface grafted phosphoryl siloxane. The silane modified polyether containing an imidazole ring is used as a core component of the waterproof coating. Compared with a traditional silane modified polyether, the imidazole ring introduced into the silane modified polyether can promote the hydrolysis and polycondensation of terminal siloxane, accelerate the curing of the coating, and the fumed silica with the surface grafted phosphoryl siloxane is used as the thixotropic agent. Strong ionic coordination bonds and hydrogen bond forces are formed between the phosphoryl groups on the surface of the fumed silica and the imidazole groups in the silane modified polyether, so that the anti-sagging performance of the waterproof coating is improved.
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