Acrylic emulsion, preparation method and application thereof

An acrylic emulsion and acrylate-based technology, which is applied in textiles, papermaking, and fiber processing, can solve problems such as difficult control, flushing, and export difficulties, and achieve the goals of improving bonding fastness, improving low-temperature flexibility, and reducing energy consumption. Effect

Active Publication Date: 2012-03-21
SHANGHAI BAOLIJIA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing pure acrylic emulsions used for coating and printing on textiles are mainly synthesized in the last century, and are basically produced by batch methods. Poly, etc.; the product quality is unstable, and the feel and fastness of the performance cannot meet the requirements of use; the environmental protection cannot meet the requirements of export products
[0003] At present, most manufacturers adopt the batch method of production. All the monomers are added to the reactor, and the initiator is slowly added dropwise. This method is very easy to cause violent polymerization and cause flushing of the kettle; Below 35%; the yield of the product is often low, and the quality cannot be guaranteed
[0004] Nonylphenol polyoxyethylene ether (APEO) is an emulsifier commonly used in the production of acrylic emulsions, but this type of emulsifier is restricted by many countries due to environmental problems, and encounters difficulties in export

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The raw materials are: a. Acrylic monomer: 40.0kg of butyl acrylate;

[0021] b. Functional monomer: 5.0kg of acrylonitrile, 0.5kg of acrylic acid, 2.0kg of methylol acrylamide, 0.5kg of epoxy siloxane;

[0022] c. Emulsifier: sodium lauryl sulfate 0.8kg, sodium dodecylbenzenesulfonate 1.0kg, sodium allylsulfonate 0.2kg;

[0023] d. Initiator sodium persulfate 0.6kg, deionized water 49.4kg.

[0024] Preparation:

[0025] (1) The emulsifier is mixed with the functional monomer and the acrylate monomer to obtain the pre-emulsified monomer;

[0026] (2) Dissolve sodium persulfate in deionized water and place it in the reactor, heat it with steam to raise the temperature to 82°C, add the pre-emulsified monomer dropwise into the reactor continuously, control the temperature at 82-86°C, add dropwise The time was 3.5 hours, and the reaction was continued for 1 hour after the dropwise addition was completed.

[0027] The prepared acrylic emulsion is a milky white micro-blue...

Embodiment 2

[0029] The raw materials are: (1) Acrylic ester monomer: 38.0 kg of butyl acrylate, 5.0 kg of methyl methacrylate;

[0030] (2) Functional monomer: 2.0kg of acrylonitrile, 1.0kg of acrylic acid, 2.0kg of methylol acrylamide;

[0031] (3) Emulsifier: sodium lauryl sulfate 1.2kg, sodium dodecylbenzenesulfonate 0.6kg, allyl sodium sulfonate 0.2kg;

[0032] (4) Initiator sodium persulfate 0.6kg, deionized water 49.4kg.

[0033] Preparation:

[0034] (1) The emulsifier is mixed with the functional monomer and the acrylate monomer to obtain the pre-emulsified monomer;

[0035] (2) Dissolve sodium persulfate in deionized water and place it in the reactor, heat it with steam to raise the temperature to 84°C, add the pre-emulsified monomer dropwise into the reactor continuously, control the temperature at 82-86°C, and add the time It was 3.5 hours, and after the dropwise addition was completed, the reaction was continued for 1.5 hours with insulation.

[0036] The prepared acrylic ...

Embodiment 3

[0038] The raw materials are: (1) Acrylic ester monomer: 35.0kg of butyl acrylate, 7.0kg of methyl methacrylate;

[0039] (2) Functional monomer: 3.0kg of acrylonitrile, 0.5kg of acrylic acid, 2.5kg of methylol acrylamide;

[0040] (3) Emulsifier: sodium lauryl sulfate 0.5kg, sodium dodecylbenzenesulfonate 1.5kg;

[0041] (4) Initiator sodium persulfate 0.6kg, deionized water 49.4kg.

[0042] Preparation:

[0043] (1) The emulsifier is mixed with the functional monomer and the acrylate monomer to obtain the pre-emulsified monomer;

[0044] (2) Dissolve sodium persulfate in deionized water and place it in the reactor, heat it with steam to raise the temperature to 82°C, add the pre-emulsified monomer dropwise into the reactor continuously, control the temperature at 82-86°C, add dropwise The time was 4 hours, and the reaction was continued for 1 hour after the dropwise addition was completed.

[0045] The prepared acrylic emulsion is a milky white micro-blue phase liquid wi...

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PUM

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Abstract

The invention relates to the field of materials, and specifically discloses an acrylic emulsion, a preparation method and application thereof. The acrylic emulsion comprises the following raw material in parts by weight: 35%swung dash45% of acrylate monomer, 7%swung dash10% of functional monomer, 1.0%swung dash2.5% of emulsifier, 0.2%swung dash0.6% of initiating agent and 42%swung dash55% of water; and the preparation method is a semicontinuous starvation feeding method. The prepared acrylic emulsion has high solid content, can be used for textile coating, and has good handfeel, high low temperature resistance and good fastness on cloth; and the preparation method is environmental friendly.

Description

technical field [0001] The invention relates to the field of organic materials, specifically acrylic emulsion. Background technique [0002] Most of the existing pure acrylic emulsions used for coating and printing on textiles are mainly synthesized in the last century, and are basically produced by batch methods. poly, etc.; the product quality is unstable, and the feel and fastness of performance cannot meet the requirements of use; the environmental protection cannot meet the requirements of export products. [0003] At present, most manufacturers adopt the batch method of production. All the monomers are added to the reactor, and the initiator is slowly added dropwise. This method is very easy to cause violent polymerization and cause flushing of the kettle; Below 35%; The yield of product is often lower, and quality also can't be guaranteed. [0004] Nonylphenol ethoxylate (APEO) is an emulsifier commonly used in the production of acrylic emulsions, but this type of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/46C08F220/58C08F220/06C08F220/14C08F2/26D06M15/263
Inventor 袁宜恩
Owner SHANGHAI BAOLIJIA NEW MATERIAL CO LTD
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