Compound high-viscosity JS waterproof emulsion
A waterproof emulsion, high-viscosity technology, applied in the direction of coating, etc., can solve the problems of poor elongation index, short working time of black cement, poor heat and alkali resistance, etc.
Inactive Publication Date: 2014-04-23
张逸飞
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Problems solved by technology
However, although many efforts have been made, there are still some problems in the application of high viscosity. At present, the products in this area mainly have problems such as poor elongation index, short working time of black cement, and poor heat and alkali resistance.
Method used
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Embodiment 2
[0050] This embodiment provides a kind of composite high-viscosity JS waterproof emulsion, and its composition comprises the following components by mass percentage:
[0051] Ethylene-vinyl acetate copolymer emulsion 96%;
[0052] Emulsifier 3%;
[0053] Antifungal agent 0.5%;
[0054] Defoamer 0.5%.
[0055] The ethylene-vinyl acetate copolymer emulsion has a solid content of 55% and a viscosity of 3500 Pa.s;
[0056] The emulsifier is a compound emulsifier of dioctyl sodium sulfosuccinate and isomerized C13 fatty alcohol polyoxyethylene ether.
[0057] The preparation of the compounded JS emulsion of the present invention is carried out at room temperature, and the emulsifier, anti-mold agent and defoamer are directly added to the ethylene-vinyl acetate copolymer emulsion according to the corresponding proportion and stirred evenly.
[0058] The performance indexes of the JS emulsion generated after the above compounding are much higher than those before compounding, and...
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Abstract
The invention provides a compound high-viscosity JS waterproof emulsion comprising the following components by the mass percentage: 90-99.9% of an ethylene-vinyl acetate copolymer emulsion; 0.1-5% of an emulsifier; 0-2% of a mildew preventive; and 0-2% of a defoaming agent. The ethylene-vinyl acetate copolymer emulsion has the solid content of 54%-57% and the viscosity of 1000-4000 Pa.s. The emulsifier is a compound emulsifier of an anionic emulsifier and a non-ionic emulsifier with the compound ratio of 1 / 3-2. The compound high-viscosity JS waterproof emulsion is simple in preparation and convenient to use, has extremely high viscosity, allows the strength retention rate of a cement film after heat treatment and alkali treatment to be much higher than that of similar products on markets, can improve the addition amount of a powder material and prolong the opening time, avoids an early-stage liquid material and the powder material from being mixed into a dough, so as to prevent from affecting on-site construction; and the compound high-viscosity JS waterproof emulsion can improve the elongation index, the black cement workable time and the heat and alkali resistant abilities.
Description
technical field [0001] The invention relates to the field of building materials, and more specifically relates to an emulsifier for JS emulsion, and JS emulsion and JS composite paint prepared by using the emulsifier. Background technique [0002] JS waterproof is the abbreviation of polymer cement waterproof coating, also known as JS composite waterproof coating, JS waterproof latex ("JS" is the pinyin prefix of "polymer cement"). [0003] It contains: [0004] A: Organic liquid materials composed of polyacrylate emulsion, ethylene-vinyl acetate copolymer emulsion and other polymer aqueous emulsions and various additives; [0005] B: Inorganic powder composed of cement, quartz sand, light and heavy calcium carbonate and other inorganic fillers and various additives. The above-mentioned so-called JS waterproof latex is a two-component water-based architectural waterproof coating made by compounding A and B in a reasonable ratio. [0006] JS waterproof latex is a green and...
Claims
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IPC IPC(8): C09D123/08C09D7/12C09D5/00C04B26/04
Inventor 张逸飞
Owner 张逸飞