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Fatty acid modified acrylic emulsion and preparation method thereof

A technology of fatty acid modification and acrylic emulsion, which is applied in the field of synthetic resin materials, can solve the problems of low hardness, low gloss, and poor water resistance of the coating film, achieve high gloss, low reaction slag rate, and reduce production costs.

Inactive Publication Date: 2019-04-19
CHENGDU SUPPON CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The coating film hardness of the acrylic emulsion of the prior art is low, gloss is low, and water resistance is relatively poor, and needs to add a large amount of film-forming aids in the paint-making process and just can obtain better film-coating effect, the adding of film-forming aids is bound to Will increase the VOC content of the paint and adversely affect the performance of the paint film

Method used

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  • Fatty acid modified acrylic emulsion and preparation method thereof
  • Fatty acid modified acrylic emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A fatty acid modified acrylic acid emulsion, its components and the parts by mass of the components are: fatty acid modified glycidyl methacrylate 25g, first emulsifier (OP-10, sodium lauryl sulfate) 2g, The second emulsifier (sodium lauryl sulfate) 0.5g, the first soft monomer (ethyl acrylate) 13g, the second soft monomer (butyl acrylate) 1g, the first hard monomer (styrene) 48g, The second hard monomer (acrylonitrile) 3g, functional monomer (acrylic acid) 1g, chain transfer agent (dodecanethiol) 0.5g, initiator (potassium persulfate) 0.1g, buffering agent (sodium bicarbonate) 0.1 g, water 150g.

[0033] Wherein the preparation method of fatty acid modified glycidyl methacrylate is as follows:

[0034] Mix unsaturated fatty acid (20 parts of soybean oleic acid), 20 parts of glycidyl methacrylate, catalyst (0.2 part of tetrabutylammonium bromide) and polymerization inhibitor (0.1 part of methyl hydroquinone) in the reactor, The reaction temperature is controlled at 90...

Embodiment 2

[0042] A kind of fatty acid modified acrylic acid emulsion, its component and component parts by mass are: fatty acid modified glycidyl methacrylate 25g, the first emulsifier (NP-10, dodecyl diphenyl ether disulfonic acid Sodium Acrylate) 2g, the second emulsifier (phosphorus-containing phosphate emulsifier) ​​0.5g, the first soft monomer (isooctyl acrylate) 12g, the second soft monomer (butyl acrylate) 1g, the first hard single Body (methyl methacrylate) 40g, second hard monomer (isobornyl acrylate) 3g, functional monomer (methacrylic acid) 1g, chain transfer agent (mercaptoethanol) 0.5g, initiator (ammonium persulfate) ) 0.1g, buffer (sodium bicarbonate) 0.1g, water 150g.

[0043] Wherein the preparation method of fatty acid modified glycidyl methacrylate is as follows:

[0044]Mix unsaturated fatty acid (20 parts of linoleic acid), 20 parts of glycidyl methacrylate, catalyst (0.2 part of triphenylphosphine) and polymerization inhibitor (0.1 part of isooctyl acrylate) in a ...

Embodiment 3

[0052] A kind of fatty acid modified acrylic acid emulsion, its component and component mass parts and numbers are: fatty acid modified glycidyl methacrylate 25g, the first emulsifier (nonylphenol polyoxyethylene ether ammonium sulfate, dodecane Sodium phenyl sulfonate) 2g, the second emulsifier (phosphorus-containing phosphate emulsifier) ​​0.5g, the first soft monomer (octearyl acrylate) 12g, the second soft monomer (octearyl acrylate) 1g, The first hard monomer (isobornyl acrylate) 40g, the second hard monomer (acrylonitrile) 3g, the functional monomer (acrylic acid, γ-methacryloxypropyltrimethoxysilane) 2g, chain transfer Agent (mercaptoethanol) 0.5g, initiator (ammonium persulfate) 0.1g, buffer (sodium bicarbonate) 0.1g, water 150g.

[0053] Wherein the preparation method of fatty acid modified glycidyl methacrylate is as follows:

[0054] Put unsaturated fatty acid (20 parts of oleic acid), 20 parts of glycidyl methacrylate, catalyst (0.2 part of benzyltriethylammonium ...

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Abstract

Belonging to the technical field of synthetic resin materials, the invention provides a fatty acid modified acrylic emulsion and a preparation method thereof. The fatty acid modified acrylic emulsioncomprises the following components by mass: 25-35 parts of fatty acid modified glycidyl methacrylate or fatty acid modified glycidyl acrylate, 2-6 parts of a first emulsifier, 0.5-3.5 parts of a second emulsifier, 12-18 parts of a first soft monomer, 1-8 parts of a second soft monomer, 40-50 parts of a first hard monomer, 3-9 parts of a second hard monomer, 0-15 parts of functional monomer, 0.5-2parts of a chain transfer agent, 0.1-0.5 part of an initiator, 0.1-1 part of a buffer agent and 150-180 parts of water. The fatty acid modified acrylic emulsion provided by the invention has the advantages of fast drying speed, high coating film gloss, excellent adhesion and good water resistance, and the preparation process uses renewable energy with abundant sources.

Description

technical field [0001] The invention belongs to the technical field of synthetic resin materials, in particular to a fatty acid modified acrylic emulsion and a preparation method thereof. Background technique [0002] Acrylic emulsion is an important resin for coatings. It is safe to use, has low VOC content, low pollution, many varieties, large formula changes, convenient chemical modification and good performance; the coating made of it has good construction, It is widely used in the decoration and protection of steel structures, wood, concrete, etc. due to its good dryness. [0003] The coating film hardness of the acrylic emulsion of the prior art is low, gloss is low, and water resistance is relatively poor, and needs to add a large amount of film-forming aids in the paint-making process and just can obtain better film-coating effect, the adding of film-forming aids is bound to It will increase the VOC content of the paint and adversely affect the performance of the pa...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/14C08F220/18C08F220/44C08F220/32C08F220/06C08F220/20C08F230/08
CPCC08F212/08C08F220/14C08F220/18C08F220/44C08F220/1811C08F220/325C08F220/1818C08F230/08C08F220/1804C08F220/06C08F220/1808C08F220/20
Inventor 徐九华
Owner CHENGDU SUPPON CHEM IND CO LTD
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