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Uvioresistant polyurethane acrylic ester water coating adhesive and preparation thereof

A urethane acrylate, water-based coating technology, applied in coatings, textiles and papermaking, etc., can solve the problem of not mentioning the anti-ultraviolet function, and achieve the effect of expanding the scope of application

Inactive Publication Date: 2008-10-08
传化智联股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After literature search, it is found that there are many patents and research papers on polyurethane acrylate emulsions, but none of them mentions the anti-ultraviolet function

Method used

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  • Uvioresistant polyurethane acrylic ester water coating adhesive and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Synthesize the acrylate emulsion with anti-ultraviolet function according to the emulsion polymerization method.

[0028] Preparation method: Dissolve sodium lauryl sulfate and OS-15 in deionized water, add to a four-necked flask equipped with a stirrer, reflux condenser, dropping funnel, and thermometer, and stir, then add 1 / 3 of the mass styrene, methyl methacrylate, butyl acrylate, ethyl acrylate, and 2-hydroxy-4-acrylate benzophenone were stirred and emulsified for 30 minutes, and slowly heated to 75-80°C, adding 1 / 3 mass of After reacting the initiator solution for 30 minutes and keeping it warm for 45 minutes, then at 82°C, add the remaining initiator emulsion and monomer mixture within 2-3 hours, and after keeping it warm for 30 minutes, raise the temperature to about 90°C. Heat preservation reaction for 2 hours, cool down, filter, and discharge to obtain an acrylate emulsion with a solid content of about 35% and an anti-ultraviolet function.

[0029] The raw...

Embodiment 2

[0044] 1. Synthesize the acrylate emulsion with anti-ultraviolet function according to the emulsion polymerization method.

[0045] Preparation method: with embodiment 1.

[0046] The raw material composition of emulsion is as follows:

[0047]

[0048] Monomer Type Amount (%)

[0049]

[0050] Styrene 20

[0051] Methyl methacrylate 6

[0052] Butyl acrylate 10

[0053] Isooctyl acrylate 50

[0054] 2-Hydroxy-4-acrylate benzophenone 8

[0055] Methacrylic acid 3

[0056] N-methylolacrylamide 3

[0057]

[0058] 2. Polyurethane emulsion containing double bonds was synthesized by polymerization: 127 grams of polyoxypropylene diol was added to the reaction kettle, stirred and heated to 120°C, dehydrated at 0.01MPa for 1 hour, and the system was cooled to 60°C. The isophorone diisocyanate of 111.3 grams, the dib...

Embodiment 3

[0061] 1. Synthesize the acrylate emulsion with anti-ultraviolet function according to the emulsion polymerization method.

[0062] Preparation method: with embodiment 1.

[0063] The raw material composition of emulsion is as follows:

[0064]

[0065] Monomer Type Amount (%)

[0066]

[0067] Styrene 30

[0068] Methyl acrylate 12

[0069] Butyl acrylate 8

[0070] Isooctyl acrylate 45

[0071] 2-Hydroxy-4-acrylate benzophenone 2

[0072] Methacrylic acid 1.5

[0073] N-methylolacrylamide 1.5

[0074]

[0075] 2. Polyurethane emulsion containing double bonds was synthesized by polymerization: 107.3 grams of polytetrahydrofuran diol was added to the reaction kettle, stirred and heated to 120°C, dehydrated at 0.01MPa for 1 hour, and the system was cooled to 60°C, and 105.3 gram of isophorone diisocyanate, after 4 hours of reaction...

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Abstract

The invention discloses anti-ultraviolet urethane acrylate waterborne coating adhesive and the preparation method; the urethane acrylate emulsion in the prior art cannot have the anti-ultraviolet function and can only be applicable to the weaving coating field. The invention adopts the means of molecular structure design that firstly, the group with the anti-ultraviolet function is introduced to acrylic ester emulsion to prepare the acrylic ester emulsion with the anti-ultraviolet function, and then the means of molecular structure design is adopted to prepare polyurethane emulsion with double bond; the interpenetrating polymer networks method is adopted to process copolymerization of the two emulsions to obtain the anti-ultraviolet urethane acrylate waterborne coating adhesive with the interpenetrating polymer networks structure. The waterborne coating adhesive in the invention has the properties of PU property, PA property and anti-ultraviolet property and extends the application range of the coating adhesive, enabling the coating adhesive not only to be applicable to the weaving coating field, but also to be applicable to the fields of paper-making, coating, packaging and leather.

Description

technical field [0001] The invention relates to the technical field of textile coatings, in particular to an anti-ultraviolet polyurethane acrylate water-based coating glue and a preparation method thereof. Background technique [0002] Fabric coating is to coat a layer of polymer material (or coating glue) on the surface of the fabric. The coating glue mainly includes polyurethane coating glue, polyacrylate coating glue, silicone coating glue, etc. With the enhancement of people's awareness of environmental protection, especially the introduction of environmental regulations to limit the content of volatile organic compounds in coating adhesives, the development of water-based coating adhesives has been promoted. Water-based polyurethane (PU) coating adhesives and water-based polyacrylate (PA) coating adhesives have been widely used, but their performance is difficult to compare with the corresponding solvent-based coating adhesives. Water-based PU and water-based PA coati...

Claims

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Application Information

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IPC IPC(8): C09D187/00D06N7/04
Inventor 张高奇罗巨涛瞿少敏朱春华原玉锋陈小金
Owner 传化智联股份有限公司
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