Room temperature crosslinkage and curable styrene-acrylate emulsion, and its preparation method

A styrene-acrylic emulsion, room temperature cross-linking technology, used in coatings, anti-corrosion coatings, epoxy resin coatings, etc., to achieve excellent mechanical properties, outstanding anti-corrosion properties, and excellent anti-corrosion properties.

Active Publication Date: 2013-06-05
广东优贝精细化工有限公司
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  • Description
  • Claims
  • Application Information

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However, the patent only mentions the use of amine groups and e

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  • Room temperature crosslinkage and curable styrene-acrylate emulsion, and its preparation method
  • Room temperature crosslinkage and curable styrene-acrylate emulsion, and its preparation method
  • Room temperature crosslinkage and curable styrene-acrylate emulsion, and its preparation method

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Embodiment Construction

[0058] The present invention will be further explained below in conjunction with specific examples, but the specific examples do not limit the present invention in any way. Unless otherwise specified, the reagents and methods involved in the examples are commonly used reagents and methods in the art.

[0059] Embodiment 1~7 prepares the styrene-acrylic emulsion that can be cross-linked and cured at room temperature

[0060] (1) Raw materials and their proportions (see Table 1). In Examples 1 to 7, the emulsion formula is calculated based on a solid content of 50% (the solid content varies within ±5%, which will not substantially affect the performance of the product. sexual effects).

[0061] In Table 1, the composite emulsifier used is a mixture of alkyl polyoxyethylene ether sulfate LA-083 and nonionic emulsifier LCN-407 in a weight ratio of 1:1.

[0062] The hydroxyphosphate monomer is a 1:1 mixture of a monoester monomer represented by formula (I) and a diester monomer r...

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Abstract

The invention discloses a room temperature crosslinkable and curable styrene-acrylate emulsion, and its preparation method. The styrene-acrylate emulsion adopts a non-APEO emulsifier to emulsify, proper amounts of phosphate groups, hydroxy groups, siloxane groups, epoxide groups and acetylacetoxy groups are introduced to a system to make the adhesion of a film of a styrene-acrylate emulsion anti-corrosion coating reach first order, and the coating cures at 25DEG C for 6 days to form the film, so the salt mist resistance is not less than 240h, the impact resistance is 50Kg/cm, and excellent anti-corrosion performance and mechanical performances are possessed; and the substitution of traditional organic solvents by a water solvent reduces the VOC discharge, accords with a 8E' principle, and reaches environmental protection and energy saving purposes.

Description

technical field [0001] The invention belongs to the field of anti-corrosion paint industry, and in particular relates to a styrene-acrylic emulsion capable of cross-linking and curing at room temperature and a preparation method thereof. Background technique [0002] With the "environmental protection and greening" becoming more and more popular, countries have successively issued regulations requiring chemical products to develop in the direction of non-toxic, harmless, friendly to people, and friendly to the environment. Compared with traditional solvent-based coatings, water-based anti-corrosion coatings effectively reduce costs and VOC emissions, comply with the "8E" principle, and become one of the main trends in the development of coatings. Water-based styrene-acrylic emulsion is the abbreviation of styrene, acrylate and acrylic terpolymer emulsion. It has good heat resistance, weather resistance, corrosion resistance, stain resistance, and high cost performance, so it...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F230/02C08F230/08C08F2/26C08F2/30C08L33/08C08L63/02C09D133/08C09D163/02C09D5/08
Inventor 钟泽钦余倩吴伟钿冯伟良余林刘锦华
Owner 广东优贝精细化工有限公司
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