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Preparation method of reflection type acrylic acid outer wall emulsion and reflection type acrylic acid outer wall emulsion

An acrylic and reflective technology, applied in the direction of reflective/signal coatings, coatings, paints containing biocides, etc., can solve the problems of poor storage stability and inconvenient storage, and achieve consistent structure, high bonding fastness, and washability good rubbing effect

Inactive Publication Date: 2018-12-07
苏州大乘环保新材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the storage stability of inorganic components in the coating system is extremely poor, and its storage is also very inconvenient.

Method used

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  • Preparation method of reflection type acrylic acid outer wall emulsion and reflection type acrylic acid outer wall emulsion
  • Preparation method of reflection type acrylic acid outer wall emulsion and reflection type acrylic acid outer wall emulsion
  • Preparation method of reflection type acrylic acid outer wall emulsion and reflection type acrylic acid outer wall emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method for preparing reflective acrylic exterior wall emulsion, which comprises the steps of preparing pre-emulsion, preparing initiator solution and emulsification polymerization.

[0055] The preparation process of pre-emulsion is as follows: figure 1 shown. Weigh 1.0 part of emulsifier according to parts by weight, add 45 parts of distilled water, and stir evenly to prepare emulsifier solution. The emulsifier is preferably a composite emulsifier. In this example, nonylphenol polyoxyethylene ether, octylphenol polyoxyethylene ether and sodium lauryl sulfate are mixed in a mass ratio of 5:2:1. After the emulsifier is completely dissolved, an appropriate amount of buffer such as sodium bicarbonate can be added to the emulsifier solution, and stirred until it is completely dissolved.

[0056] The monomer mixture is formed by mixing the polymerized monomer and the ultraviolet crosslinking agent, and is added to the emulsifier solution by gradually dropping. Polymeriz...

Embodiment 2-5

[0066] Examples 2-5 all relate to a preparation method of reflective acrylic exterior wall emulsion, and the difference from Example 1 is that the dosage of each component is different, as shown in the following table:

[0067] Table 1.

[0068]

[0069] The emulsifier is formed by mixing nonylphenol polyoxyethylene ether, octylphenol polyoxyethylene ether and sodium lauryl sulfate in a mass ratio of 5:2:1.

Embodiment 2

[0071] In Example 2, the stirring rate after adding the monomer mixture into the emulsifier solution was 450 rpm; the stirring rate when adding the remaining part of the pre-emulsion and the initiator solution dropwise into the reaction substrate was 235 rpm.

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Abstract

The invention discloses a preparation method of a reflection type acrylic acid outer wall emulsion, belongs to the technical field of outer wall emulsion and preparation thereof, and aims to solve theproblems that in the prior art, during the outer wall emulsion preparation process, inorganic components such as titanium dioxide are added, and the storage stability is bad. The acrylic acid outer wall emulsion is prepared by the following steps: adding a UV crosslinking agent during the outer wall emulsion synthesis process, adjusting the pH to 7-8, adding hollow emulsion and a silane couplingagent, evenly stirring, and filtering. The prepared acrylic acid outer wall emulsion has a good reflection and thermal insulation performance, the preparation does not need any titanium dioxide, and the reflection and thermal insulation effect of provided emulsion is the same as that of a titanium dioxide containing paint. The invention also provides a reflection type acrylic acid outer wall emulsion.

Description

technical field [0001] The invention relates to a building emulsion and a preparation method thereof, more specifically, it relates to a preparation method of a reflective acrylic exterior wall emulsion and an acrylic exterior wall emulsion. Background technique [0002] Acrylic resin not only has the advantages of stability, weather resistance, light resistance, chemical resistance, etc., but also has the characteristics of anti-corrosion, alkali resistance, water resistance, good film-forming property, good color retention, no pollution, good construction performance and safe use. , in the field of architectural coatings, it is often widely used in the form of emulsion. [0003] As in the prior art, the Chinese patent whose authorization notification number is CN105254795B discloses a kind of emulsion for exterior wall engineering coating, which is composed of water, butyl acrylate, methyl methacrylate, hydrophilic unsaturated organic acid, functional monomer , emulsifier...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F230/08C09D5/33C09D133/12C09D5/16
CPCC08F220/18C08F220/1804C09D5/004C09D5/1662C09D133/12C08F220/14C08F220/06C08F230/08
Inventor 单秀军朱立伟
Owner 苏州大乘环保新材有限公司
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