Waterproof coating and preparation method thereof

By using environmentally friendly materials such as biomass and biowax, combined with technical means such as modified graphene, a non-toxic and environmentally friendly waterproof coating was prepared, which solved the shortcomings of existing waterproof coatings in terms of performance and environmental protection, and achieved excellent waterproof performance and environmental protection effects.

CN119955355APending Publication Date: 2025-05-09ZHONGSHAN FEIPSON CHEMICAL CO LTD
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Patent Information

Application Number
CN202411889128.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-05-09

AI Technical Summary

Technical Problem

Existing waterproof coatings have shortcomings in performance and environmental protection, such as the toxicity of polyurethane waterproof coatings, the low tensile strength and elongation of fracture of modified asphalt waterproof coatings, and the high carbon emissions of polymer cement-based waterproof coatings.

Method used

Biomass and biowax are used as the main raw materials, combined with modified graphene, nanosilicon dioxide and other materials, and a non-toxic and environmentally friendly waterproof coating is prepared through specific preparation methods.

Benefits of technology

The prepared waterproof coating has excellent waterproof performance, tensile strength, and is non-toxic and harmless, environmentally friendly, and has no secondary pollution after degradation.

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Abstract

The invention relates to the field of coatings, and discloses a waterproof coating and a preparation method thereof. The graphene-based biomass fuel comprises the following components in parts by weight: 100-120 parts of biomass, 10-15 parts of graphene, 80-100 parts of biological wax, 4-6 parts of nano silicon dioxide, 2-3 parts of a surfactant, 20-30 parts of a silanization reagent, 4-5 parts of a cross-linking agent, 1-2 parts of an initiator, 1-2 parts of a dispersing agent, 2-4 parts of an emulsifier, 250-300 parts of ethanol, 200-300 parts of a 50% acetone aqueous solution and 30-50 parts of deionized water. According to the invention, the modified graphene is grafted on the biomass, so that the waterproofness, hardness, cohesiveness and strength of the composite coating are improved; according to the present invention, the biomass and the biological wax are adopted as the raw materials, water is adopted as the dispersion medium to form the aqueous emulsion with the biological wax, the prepared waterproof coating is the aqueous coating, does not contain the organic solvent, is harmless to the human body and is environmentally friendly, and the main raw materials such as the biomass and the biological wax have advantages of wide source, renewability and no secondary pollution after degradation.
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