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Water-borne acrylic pressure sensitive adhesive emulsion and preparation method thereof

An acrylic pressure-sensitive adhesive and acrylate technology, which is applied in the field of pressure-sensitive adhesive emulsion, can solve the problems of affecting appearance, poor water resistance, and low adhesive strength, and achieve good stability and cost reduction.

Inactive Publication Date: 2018-03-27
广东新时代包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Combining the above two types of pressure-sensitive adhesives with outstanding effects, a water-based acrylic pressure-sensitive adhesive emulsion is obtained. However, the existing water-based acrylic pressure-sensitive adhesive emulsion has low adhesion strength and poor water resistance. Traces of the agent, affect the appearance
In the existing process of preparing water-based pressure-sensitive adhesives, there is a lack of steps to improve the stability of water-based acrylic pressure-sensitive adhesive emulsions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A water-based pressure-sensitive adhesive emulsion comprises the following components in mass percentage:

[0031] Acrylate monomer 35-56%;

[0032] Functional monomer 3-5%;

[0033] Emulsifier 0-3%;

[0034] Initiator 0-1%;

[0035] Cross-linking agent 3-6%;

[0036] Defoamer 0-0.1%;

[0037] pH regulator 0-0.2%;

[0038] Preservatives 0-0.1%;

[0039] Surfactant 0-2%;

[0040] Water 38-50%;

[0041] The mass percentage sum of each component is 100%.

[0042] The acrylate monomer is one or more of butyl acrylate, methyl acrylate or ethyl acrylate.

[0043] The functional monomers are acrylic acid, methacrylic acid, maleic anhydride, itaconic acid, hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, methylol acrylamide, acrylamide and methacrylic acid shrinkage One or more of glycerides. Preferably, the functional monomer is acrylic acid. On the one hand, acrylic acid is used as a water-soluble functional monomer, and on the other hand, ...

Embodiment 2

[0051] A preparation method for an aqueous pressure-sensitive adhesive emulsion, comprising the following steps:

[0052] (1) 4600 mass parts of deionized water, 100 mass parts of dodecylbenzenesulfonic acid sodium salt, 15 mass parts of octylphenol polyoxyethylene ether and 5 mass parts of preservatives are mixed and uniformly stirred, adding pH The regulator sodium bicarbonate adjusts the pH value to 5-7 to obtain the mixed solution A;

[0053] (2) Raise the temperature of the mixed solution A to 55°C, add 4100 parts by mass of butyl acrylate, 500 parts by mass of acrylic acid, 12 parts by mass of polyoxyethylene polyoxypropanolamine ether and 600 parts by mass of hydroxyethyl acrylate Esters, uniformly stirred for 1 hour at a temperature of 55-65°C to obtain a mixed solution B;

[0054] (3) Under the condition that the temperature is 78-88° C., 40 parts by mass of potassium persulfate is evenly added dropwise to the mixed solution B, and the dropwise addition is completed ...

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PUM

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Abstract

The invention discloses a water-borne acrylic pressure sensitive adhesive emulsion which contains the following components by weight percent: 35-56% of acrylate monomer, 3-5% of functional monomer, 0-3% of an emulsifying agent, 0-1% of an initiator, 3-6% of a cross-linking agent, 0-0.1% of a defoaming agent, 0-0.2% of a pH regulator, 0-0.1% of a preservative, 0-2% of a surfactant and 38-50% of water. The invention also discloses a preparation method of the water-borne acrylic pressure sensitive adhesive emulsion, comprising the following steps: mixing water, the surfactant, the emulsifying agent and the preservative and adjusting pH value, then adding the acrylate monomer, the functional monomer, the defoaming agent and the cross-linking agent, dropwise adding the initiator to a mixture solution B under the condition of temperature of 78-88 DEG C, wherein the dripping is completed in 4-5h; and adjusting pH value and finally filtering the discharged material. By adopting the formula andpreparation method disclosed by the invention, the environment-friendly water-borne acrylic pressure sensitive adhesive emulsion high adhesion strength and easy to strip can be produced.

Description

technical field [0001] The invention relates to a pressure-sensitive adhesive emulsion, in particular to a water-based acrylic pressure-sensitive adhesive emulsion and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesives are divided into solvent-based pressure-sensitive adhesives and water-based pressure-sensitive adhesives according to different dispersion media. Compared with solvent-based pressure-sensitive adhesives, acrylic pressure-sensitive adhesives have the advantages of low price, fast production speed, and no pollution. Compared with other pressure-sensitive adhesives with main resin components, acrylic pressure-sensitive adhesives are colorless, transparent and have a good Excellent weather resistance, and good pressure-sensitive adhesive effect can be obtained without using additives. [0003] Combining the above two types of pressure-sensitive adhesives with outstanding effects, a water-based acrylic pressure-sensitive adhes...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/06C08F220/20C08F2/24
CPCC08F2/24C08F220/18C08F220/1804C08F220/06C08F220/20
Inventor 秦久刚
Owner 广东新时代包装材料有限公司