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Tung oil modified JS waterproofing paint and preparation thereof

A technology of waterproof coating and tung oil, which is applied in the direction of antifouling/underwater coating, coating, paint containing biocide, etc., can solve the problems of high application cost, poor construction performance, poor water resistance and waterproof performance, and achieve Excellent construction performance, excellent elongation at break and water resistance, and the effect of reducing application costs

Inactive Publication Date: 2008-09-03
张家界市桐发科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The JS waterproof coating produced by the former method has good waterproof performance, but the application cost is high and the construction performance is not good; the JS waterproof coating produced by t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take tung oil 3.10Kg, polyvinyl alcohol 3.10Kg, formaldehyde 0.62Kg, water 22.66Kg, acrylate emulsion 68.78Kg, dispersant 1.16Kg, defoamer 0.58Kg; put polyvinyl alcohol and water into the reaction kettle to heat up and dissolve , then add hydrochloric acid to adjust pH=3, then add formaldehyde and tung oil respectively, add sodium hydroxide aqueous solution to neutralize to pH=7 when waiting to react to milky white, obtain modified polyvinyl formal 29.48Kg, after cooling, mix it with The acrylic emulsion was mixed uniformly to obtain 98.26Kg of the acrylic emulsion modified by tung oil, then a dispersant and a defoamer were added to mix, and the mixture was evenly stirred to obtain a slightly yellowish white organic emulsion;

[0025] Take 45Kg of ordinary Portland cement, 25Kg of heavy calcium and 30Kg of quartz sand, and mix them uniformly to obtain an inorganic powder component.

[0026] During the construction of waterproofing project, only need to mix the above-men...

Embodiment 2

[0028] Tung oil 2.1Kg, polyvinyl alcohol 3.2Kg, formaldehyde 0.4Kg, water 22.5Kg, acrylate emulsion 65.5Kg, dispersant 1.0Kg, defoamer 0.7Kg. The organic emulsion was prepared according to the method in Example 1. Weigh 44.0Kg of Portland cement, 45.0Kg of heavy calcium (or talcum powder), and 15Kg of quartz sand, and mix them evenly to form an inorganic powder. When in use, the waterproof coating prepared by stirring the organic emulsion component and the inorganic powder component evenly has excellent waterproof performance and high bonding strength with the substrate, and is suitable for construction projects (such as pools) that need to be immersed in water for a long time waterproof.

[0029] In the above-mentioned embodiments, no more than 2% of the total weight of the inorganic powder can be added with inorganic pigments according to the construction requirements.

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Abstract

The invention provides a tung oil modified JS water proofing paint and preparation method, using excellent waterproofness and film-forming property of tung oil. The preparation method comprises : producing modified polyvinyl alcohol by reacting the tung oil with the formaldehyde and polyvinyl alcohol at acid condition; mixing the modified polyvinyl alcohol and acr type latex to a scale; adding dispersant, antifoaming agent to form organic latex; adding organic powder lot produced by mixing portland cement, heavy calcium (or talcum powder), quartz sand; producing water proofing paint. The polymer cement water proofing paint (JS paint) is constituted by two components, with extensibility and waterproofness of polymer coating film, advantages of cement matrix: high strength, easy to bond with the damp substrate, low cost, good workability, and environmental protection.

Description

technical field [0001] The invention relates to a two-component composite waterproof coating for buildings, in particular to a high-performance, low-cost modified polymer cement-based composite coating used in construction projects such as building roofs, kitchens, toilets, bridges, tunnels, and reservoirs. Waterproof coating and preparation method thereof. Background technique [0002] The production of building waterproof materials in my country has made considerable progress from a single No. 350 petroleum asphalt paper grease felt to modified asphalt felt, polymer waterproof membrane, rigid anti-seepage and plugging materials. However, using bituminous waterproof materials, the hot construction pollutes the environment, the process is cumbersome and unsafe, and it is easy to age and has a short service life; the construction of polymer waterproof membranes in complex-shaped parts is difficult, and the adhesion to wet base surfaces is poor. , leading to the joints are ea...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D5/16C09D129/04
Inventor 唐克华李泽武刘立萍彭发权唐纯翼张永康
Owner 张家界市桐发科技有限公司
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