Water-proof polymer-cement paint with low polymer/cement ratio and high performance and its preparing process
A high-performance polymer and waterproof coating technology, which is applied in the direction of antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve problems such as poor weather resistance, poor water resistance, and high water absorption
Inactive Publication Date: 2004-05-19
CNBM ZHONGYAN TECH
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Problems solved by technology
Engineering practice and research tests show that the water-resistant index of most of the high-elasticity products of JS coatings commonly produced and used in China (liquid-to-powder ratio 10:7, poly-ash ratio ≥ 1 or even exceeds 2, elongation ≥ 150%) is mostly unqualified; Many products have the following deficiencies: 1) Poor water resistance, high water absorption rate, obvious softening, swelling after soaking in water for a long time, and strength decrease; 2) Poor weather resistance and weak anti-ultraviolet ability. Stiffness and decreased elongation; 3) The amount of polymer used is large, the cost is high, and the poly-ash ratio is high, but the elasticity is not high
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0055] Liquid formula
[0056] Methyl methacrylate 5
[0057] Styrene 5
[0058] Butyl acrylate 15
[0059] Acrylic 0.5
[0060] Ammonium persulfate 0.1
[0061] Sodium bicarbonate 0.1
[0062] Cross-linking agent 0.5
[0063] Anionic emulsifier 0.125
[0064] The invention has the advantages of less polymer consumption, low poly-ash ratio consumption, high elasticity, low water absorption, high water resistance, no swelling after soaking in water, high retention rate of tensile strength and breaking strength after soaking in water, anti-aging and good weather resistance, and can be used Strong post-adhesion, no seams, good integrity, breathable and impermeable, no hollowing, freeze-thaw resistance, high temperature resistance, corrosion resistance, cold construction, wet operation, simple construction, non-toxic and harmless, green and environmental protection, etc. advantage.
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Abstract
A water-proof paint is composed of liquid material and powder. Said liquid material is prepared from 13 raw materials including methyl methylacrylate, styrene, butyl acrylate, acrylic acid, ammonium persulfate, etc. Said powder is prepared from silicate cement, powdered defoaming agent, disperser, water-proofing agent and aquartz sand. Its advantages are high adhesion and air permeability, high resistance to water, high temp, freezing and corrosion, and no toxicity.
Description
technical field [0001] The invention relates to an organic-inorganic composite waterproof paint. Background technique [0002] At present, materials commonly used in waterproofing projects include: asphalt, linoleum, modified asphalt coils and polymer coils, ointment, polyurethane coatings, etc. Asphaltene materials are used, hot construction pollutes the environment, construction is troublesome and unsafe, asphalt is easy to age, high temperature is easy to flow, low temperature is easy to be brittle, and the service life is very short; the coiled material is not suitable for construction on parts with complex shapes, difficult to close edges, and wet base surface The adhesive force is very poor, the membrane is airtight, and the water vapor in the structure often causes hollowing, and there are many joints during construction. As long as there is water in one place, because the lower part of the membrane is hollow and the waterway is connected, it will often cause large-sc...
Claims
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IPC IPC(8): C09D5/16C09D133/12
Inventor 李应权韩立林何丹李光明黄春江陈旭峰刘绪光
Owner CNBM ZHONGYAN TECH