VAc/St/BA (vinyl acetate-styrene-butyl acrylate) stone paint emulsion and preparation method

A technology of acetaminophen real stone and emulsion, applied in the direction of coating, etc., can solve the problems that real stone paint is easy to produce bad mood, affect the appearance of buildings, and the color of real stone paint is yellow, so as to improve the effect of yellowing resistance and good recovery. , The effect of good anti-yellowing performance

Active Publication Date: 2016-01-20
佛山市顺德区巴德富实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sulfonation of the emulsion can easily lead to yellowing of the real stone paint, which seriously affects the appearance of the paint
Although the sulfonation effect of the paint was not obvious at the beginning, the sulfonation of the p

Method used

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Experimental program
Comparison scheme
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Example Embodiment

[0053] The invention also describes a preparation method of vinegar-styrene-acrylic real stone paint emulsion, which comprises the following steps:

[0054] 1. Preparation of Bottom Material Liquid A:

[0055] Add 30 to 45 parts of deionized water and 1 to 3 parts of mixed emulsifier to a polymerization kettle with a stirrer, condenser, and constant flow pump feeding device, and raise the temperature to 76 to 80°C in the kettle;

[0056] 2. Preparation of pre-emulsion B:

[0057] Add 35 to 55 parts of deionized water, 2 to 4 parts of mixed emulsifier, 26 to 30 parts of vinyl acetate, and 28 parts of butyl acrylate to a pre-emulsification tank with a monomer metering tank and agitator under normal temperature and pressure. To 32 parts and 2 to 6 parts of functional monomer, stir and mix into a uniform pre-emulsion, and stir for 10 to 30 minutes for later use;

[0058] 3. Preparation of pre-emulsion C:

[0059] Add 25 to 35 parts of deionized water, 0.5 to 3 parts of mixed emulsifier, 18 ...

Example Embodiment

[0066] Example one:

[0067] The preparation method includes the following steps:

[0068] a. Bottom material liquid preparation device A: Add 35 parts of deionized water and 1.2 parts of mixed emulsifier to the polymerization kettle with agitator, condenser, and constant flow pump feeding device, and heat up to 76°C in the kettle ;

[0069] b. Pre-emulsion preparation device B: Add 45 parts of deionized water, 2.5 parts of mixed emulsifier, 27 parts of vinyl acetate, and butyl acrylate to the pre-emulsification tank with monomer metering tank and stirrer under normal temperature and pressure. 30 parts and 3 parts of functional monomers total 107.5 parts, stir and mix into a uniform pre-emulsion, and stir for 20 minutes for use;

[0070] c. Pre-emulsion preparation device C: Add 25 parts of deionized water, 1 part of mixed emulsifier, 24 parts of styrene, and alkyl acrylate to the pre-emulsification tank with monomer metering tank and stirrer under normal temperature and pressure. ...

Example Embodiment

[0075] Example two

[0076] a. Bottom material liquid preparation device A: Add 38 parts of deionized water and 3 parts of mixed emulsifier to a polymerization kettle with a stirrer, a condenser and a constant flow pump feeding device. The temperature in the kettle reaches 76°C. ;

[0077] b. Pre-emulsion preparation device B: Add 50 parts of deionized water, 3.5 parts of mixed emulsifier, 26 parts of vinyl acetate, and butyl acrylate to the pre-emulsification tank with monomer metering tank and stirrer under normal temperature and pressure. 32 parts and 3 parts of functional monomer total 85.5 parts, stir and mix into a uniform pre-emulsion, and stir for 20 minutes for use;

[0078] c. Pre-emulsion preparation device C: Add 32 parts of deionized water, 2.5 parts of mixed emulsifier, 18 parts of styrene, and alkyl acrylate to the pre-emulsification tank with monomer metering tank and stirrer under normal temperature and pressure. 2 parts, 14 parts of alkyl methacrylate and 2 part...

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Abstract

The invention particularly relates to a VAc/St/BA (vinyl acetate-styrene-butyl acrylate) stone paint emulsion and a preparation method. The emulsion comprises components as follows: 18-23 parts of styrene, 26-30 parts of vinyl acetate, 28-32 parts of butyl acrylate, 14-21 parts of alkyl methacrylate, 1.8-2.7 parts of alkyl acrylate, 2-6 parts of a functional monomer, 2-6 parts of a cross-linking agent, 0.3-1.5 parts of an initiator, 3-7 parts of a mixed emulsifier and 100-140 parts of deionized water. The VAc/St/BA stone paint emulsion has the benefits as follows: the yellowing-resistant effect of the styrene-acrylic emulsion can be improved effectively by the aid of the excellent yellowing resistance of vinyl acetate, and the emulsion has the characteristics of low cost, good water resistance, good paint film hardness, good yellowing resistance, good water white resistance and stable performance.

Description

technical field [0001] The invention relates to an emulsion additive added to real stone paint for construction, in particular to a styrene-acrylic real stone paint emulsion and a preparation method thereof. Background technique [0002] In recent years, the price of international crude oil has been rising, and the price of monomers used in emulsion production has continued to rise. In particular, the price of styrene has fluctuated, and the price has remained high. As a result, the production cost of styrene-acrylic emulsion has been troubled by construction emulsion manufacturers. Emulsion manufacturers have been reducing costs from areas other than monomers, but the cost reduction has not been large, and a lot of scientific research has been spent on research. [0003] There is another important reason: styrene-acrylic emulsion is irradiated by ultraviolet rays, the benzene ring in the styrene-acrylic emulsion is cracked, and the cracked benzene ring returns to the origin...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D131/04C08F220/18C08F212/08C08F218/08C08F230/08
Inventor 梁健津龚博文罗云罗宇
Owner 佛山市顺德区巴德富实业有限公司
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