Anti-permeable acrylic waterproof emulsion paint and preparation method thereof

By introducing surface-modified sisal fibers and specific crosslinking monomers into acrylic coatings, a high-density, superhydrophobic coating structure is formed, solving the problem of insufficient waterproof performance of acrylic coatings and achieving anti-penetration and crack-resistant coating effects.

CN122278282APending Publication Date: 2026-06-26JIAXING JIAHE WOOD IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIAXING JIAHE WOOD IND CO LTD
Filing Date
2026-04-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Conventional acrylic coatings have shortcomings in waterproofing performance, especially in preventing water penetration, and may crack over time. Existing modification methods are insufficient to achieve efficient improvement.

Method used

Sisal fibers with surface-modified natural biomass gum are used as fiber modifiers, and crosslinking monomers are prepared through a specific method to form a high-density, superhydrophobic coating structure. Combined with the hydrogen bond association network of fiber and acrylate molecular chains, the density and compressive strength of the coating are improved.

Benefits of technology

It effectively prevents moisture penetration, enhances the waterproof performance of the coating, avoids cracking, and improves the compressive strength and waterproof effect of the coating.

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Abstract

This invention relates to the field of coating technology and discloses an anti-permeability acrylic waterproof emulsion coating and its preparation method. This coating is formed by mixing acrylic emulsion polymer, fiber modifier, and other raw materials. During the preparation of the acrylic emulsion polymer, crosslinking monomers are added. The addition of crosslinking monomers increases the density of the resulting acrylate molecular chains, effectively preventing water penetration. Simultaneously, the fluorine and tert-butylbenzene elements in the alternating structure of the crosslinking monomers possess strong hydrophobicity, forming a superhydrophobic layer on the coating surface, further enhancing the waterproof performance of the coating. The fiber modifier can form hydrogen bonds with the acrylate molecular chains, more efficiently utilizing the fiber's tensile strength, improving the coating's compressive strength, and preventing cracking under external pressure, thus preventing water from penetrating the interior through cracks.
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