Long-chain unsaturated fatty acid-modified acrylate emulsion and preparation method thereof

A technology of unsaturated fatty acid and acrylate, which is applied in the field of acrylate emulsion and its preparation, which can solve the problems of water resistance, hardness, and poor adhesion, and achieve good emulsion stability, less gel amount, and large contact angle. Effect

Inactive Publication Date: 2014-11-19
SONGTEN JIANGSU NEW MSTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a long-chain unsaturated fatty acid-modified acrylate emulsion and ...

Method used

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  • Long-chain unsaturated fatty acid-modified acrylate emulsion and preparation method thereof
  • Long-chain unsaturated fatty acid-modified acrylate emulsion and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] The proportioning in parts by mass of the long-chain unsaturated fatty acid modified acrylate emulsion of the present embodiment is as follows:

[0042] Butyl acrylate 40; methyl methacrylate 40; oleic acid 0.8; potassium persulfate 0.4; sodium lauryl sulfate 0.6; nonylphenol polyoxyethylene ether 1.8; sodium bicarbonate 0.4; water 120.

[0043] The preparation method is as follows:

[0044] a Proportionally weigh 1 / 5 of the butyl acrylate and methyl methacrylate, 1 / 2 of the water, 1 / 3 of the potassium persulfate, sodium lauryl sulfate and nonyl Base phenol polyoxyethylene ether, all sodium bicarbonate, and emulsify the appeal mixed material to obtain a pre-emulsion;

[0045] b Stir the above-mentioned pre-emulsion at 83°C for 0.5h to obtain a light blue emulsion;

[0046] c Weigh the remaining 4 / 5 of butyl acrylate and methyl methacrylate, the remaining 1 / 2 of water, the remaining 2 / 3 of potassium persulfate, sodium lauryl sulfate and nonylphenol polyoxyethylene Ether...

Embodiment 2

[0052] The proportioning in parts by mass of the long-chain unsaturated fatty acid modified acrylate emulsion described in this embodiment is as follows:

[0053] Butyl acrylate 40; methyl methacrylate 40; oleic acid 1.2; potassium persulfate 0.4; sodium lauryl sulfate 0.6; nonylphenol polyoxyethylene ether 1.8; sodium bicarbonate 0.4; water 116.

[0054] The preparation of the long-chain unsaturated fatty acid modified acrylate emulsion described in the present embodiment comprises the following steps:

[0055] a Proportionally weigh 1 / 5 of the butyl acrylate and methyl methacrylate, 1 / 2 of the water, 1 / 3 of the potassium persulfate, sodium lauryl sulfate and nonyl Base phenol polyoxyethylene ether, all sodium bicarbonate, and emulsify the appeal mixed material to obtain a pre-emulsion;

[0056] b Stir the above-mentioned pre-emulsion at 85°C for 0.6h to obtain a light blue emulsion;

[0057] c Weigh the remaining 4 / 5 of butyl acrylate and methyl methacrylate, the remaining...

Embodiment 3

[0063] The proportioning in parts by mass of the long-chain unsaturated fatty acid modified acrylate emulsion described in this embodiment is as follows:

[0064] Butyl acrylate 38; ethyl methacrylate 42; soybean oil 0.8; potassium persulfate 0.4; sodium dodecylbenzenesulfonate 0.4; nonylphenol polyoxyethylene ether 1.2; sodium bicarbonate 0.4; water 120.

[0065] The preparation of the long-chain unsaturated fatty acid modified acrylate emulsion described in the present embodiment comprises the following steps:

[0066] a Proportionally weigh 1 / 5 of the feed amount of butyl acrylate and ethyl methacrylate, 1 / 2 of the feed amount of water, 1 / 3 of the feed amount of potassium persulfate, sodium dodecylbenzene sulfonate and nonylphenol polyoxyethylene ether, all sodium bicarbonate, the appeal mixed material is emulsified to obtain a pre-emulsion;

[0067] b Stir the above-mentioned pre-emulsion at 83°C for 1.0h to obtain a light blue emulsion;

[0068] c Weigh the remaining 4 / ...

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Abstract

The invention relates to a long-chain unsaturated fatty acid-modified acrylate emulsion and a preparation method thereof. The acrylate emulsion is prepared from raw materials such as acrylate soft monomers, acrylate hard monomers, long-chain unsaturated fatty acid, an initiator, an emulsifier, sodium bicarbonate and water by virtue of emulsion polymerization. The emulsion prepared by the preparation method takes the long-chain unsaturated fatty acid as a functional monomer which is introduced into an acrylate emulsion system and accounts for 0.5%-5% of the total amount of the monomers; the film performance is improved by virtue of further self-crosslinking reaction of unsaturated double bonds of the functional monomer during a film drying process to solve problems of poor water resistance, lower hardness, and the like of an existing acrylate emulsion film, and use of an artificially synthesized modifier which is relatively high in price and causes environmental pollution further can be avoided. By introducing the long-chain unsaturated fatty acid, not only can the film performance be effectively improved, but also the acrylate emulsion can be developed in a green direction to satisfy environmental protection requirements well.

Description

technical field [0001] The invention relates to an acrylate emulsion and a preparation method thereof, in particular to a long-chain unsaturated fatty acid modified acrylate emulsion and a preparation method thereof. Background technique [0002] Acrylate emulsion is widely used in coatings, adhesives and other fields due to its excellent comprehensive performance and price advantages, but it also has certain limitations, such as poor water resistance and low hardness. In the past, researchers studied the synthesis method, process parameters, performance improvement and application of acrylate emulsions to address these shortcomings, and currently mainly use modification methods to improve their performance, including organosilicon modification, nanoparticle modification, cross-linking, etc. Co-modification, polyurethane modification, etc., and have achieved certain results. Publication number CN 102649835 A discloses an organic-inorganic hybrid acrylate emulsion with high ...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F220/04C08F220/20C08F2/26C08F2/30
Inventor 周铭杨建红沈琴
Owner SONGTEN JIANGSU NEW MSTAR TECH
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