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Multi-crosslinking high-elastic outer-wall emulsion as well as preparation method and application thereof

A multi-crosslinking, high-elasticity technology used in biocide-containing paints, antifouling/underwater coatings, coatings, etc. Balance and other issues to achieve the effect of improving crosslinking density, improving storage stability, improving tensile strength and elongation

Pending Publication Date: 2018-03-23
GUANGDONG HENGGUANG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the unbalanced tensile strength and elongation at break of existing elastic exterior wall emulsion coatings, and poor early water resistance and stain resistance, the present invention provides a multi-crosslinked high-elastic exterior wall emulsion

Method used

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  • Multi-crosslinking high-elastic outer-wall emulsion as well as preparation method and application thereof
  • Multi-crosslinking high-elastic outer-wall emulsion as well as preparation method and application thereof
  • Multi-crosslinking high-elastic outer-wall emulsion as well as preparation method and application thereof

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Experimental program
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preparation example Construction

[0041] In any embodiment, the preparation method at least includes the following steps:

[0042] Step 1. Weigh each component according to the aforementioned raw material ratio;

[0043] Step 2. Use deionized water to dissolve the emulsifier to obtain an emulsifier solution;

[0044] Step 3. Mix the polymerization stabilizer, the hydrophilic monomer, the carboxyl crosslinking monomer and the main monomer, and add them to the emulsifier solution under stirring conditions for dispersion to obtain a dispersion;

[0045] Step 4. Add water and pH buffer to the reactor, and under stirring conditions, the temperature is raised to 80-84°C, and 8-12wt% of the dispersion liquid and 30-35wt% of the initiator are added to the reactor , The reaction is carried out to obtain the seed liquid;

[0046] Step 5. Dissolve the remaining initiator, and then add the remaining initiator and the remaining dispersion liquid dropwise to the seed liquid. During the dropping process, add the silane coupling agent...

Embodiment 1

[0056] This embodiment provides a multiple cross-linked high-elastic exterior wall emulsion. The content of each component of the emulsion is calculated in parts by weight as shown in Table 1 below.

Embodiment 2

[0058] This embodiment provides a multiple cross-linked high-elastic exterior wall emulsion. The content of each component of the emulsion is calculated in parts by weight as shown in Table 1 below.

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Abstract

The invention relates to the technical field of outer wall coatings, and particularly discloses multi-crosslinking high-elastic outer wall emulsion as well as a preparation method and application thereof. The emulsion is prepared from the following components in parts by weight: 40 to 50 parts of deionized water, 0.1 to 5 parts of emulsifier, 0.02 to 10 parts of outer crosslinking monomer, 0.01 to5 parts of metal crosslinking agent, 0.1 to 2 parts of ultraviolet crosslinking agent, 0.05 to 40 parts of hydrophilic monomer, 0.05 to 40 parts of crosslinking monomer of carboxyl, 0.05 to 40 partsof main monomer, 0.05 to 20 parts of polymerization stabilizer, 0.02 to 5 parts of silane coupling agent, 0.02 to 5 parts of initiator, 0.02 to 5 parts of pH value buffering agent, 0.02 to 5 parts ofdefoaming agent, 0.02 to 5 parts of anticorrosion agent and 0.2 to 10 parts of pH conditioning agent. By adopting the multi-crosslinking high-elastic outer-wall emulsion, the preparation method and application thereof, the relationship between tension strength and breaking elongation of the elastic coating is balanced, and the tension strength and the breaking elongation are outstanding.

Description

Technical field [0001] The invention relates to the technical field of building coating exterior wall coatings, in particular to a multiple cross-linked high-elastic exterior wall emulsion and a preparation method and application thereof. Background technique [0002] The new elastic coating standard came into effect on December 1, 2014. The new standard uses a combination of room temperature drying and forced drying at 80°C. Under the new standard, elastic paints have higher requirements for elastic emulsions, requiring a low glass transition temperature to provide good elongation, and at the same time increasing the requirements for strength and stain resistance. Therefore, the elastic emulsion under the old version of the standard no longer meets the new needs. In addition, the elastic coating uses an elastic emulsion with a low glass transition temperature, which has a slow drying speed, resulting in poor early water resistance of the elastic coating film. Therefore, balan...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D5/16C09D7/65C09D7/61C08F220/18C08F230/08C08F220/14C08F220/48C08F220/56C08F220/06C08F220/20C08F220/58C08F2/38
CPCC08F2/38C08F220/18C08K2003/2241C08K2003/265C08L2205/03C09D5/1687C09D143/04C08F220/1804C08L1/284C08L91/00C08K13/02C08K3/22C08K3/26C08K3/346C08K5/10C08F230/08C08F220/14C08F220/48C08F220/56C08F220/06C08F220/20C08F220/58
Inventor 杨士国肖中华田海水高昊焦健王亚际刘文超何军赵玉涛
Owner GUANGDONG HENGGUANG CHEM CO LTD
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