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A kind of water-based pressure-sensitive adhesive and preparation method thereof

A pressure-sensitive adhesive, water-based technology, applied in the direction of adhesive types, adhesive additives, non-polymer adhesive additives, etc. problem, to achieve the effect of increasing the cross-linking effect

Inactive Publication Date: 2017-07-28
广州晶海化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of emulsion polymerization, as the amount of methylol acrylamide increases, the polymerization stability of emulsion polymerization decreases and the gel ratio increases, thus affecting its application in industrial production

Method used

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  • A kind of water-based pressure-sensitive adhesive and preparation method thereof
  • A kind of water-based pressure-sensitive adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A water-based pressure-sensitive adhesive, which is composed of a polymer emulsion and a polymethylol compound emulsion, and the parts of each component are as follows:

[0038] 97 parts by mass of polymer emulsion

[0039] 3 parts by mass of polymethylol compound emulsion.

[0040] The preparation steps of the above-mentioned water-based pressure-sensitive adhesive are:

[0041] (1) In the first reactor, add 87 parts by mass of butyl acrylate, 8 parts by mass of methyl methacrylate, 2 parts by mass of acrylic acid, 2 parts by mass of methylol acrylamide, 1 part by mass of acrylamide, 2 parts by mass of Parts of octylphenol polyoxyethylene ether, 1 mass part of sodium lauryl sulfate, 0.4 mass part of potassium persulfate, 0.1 mass part of n-dodecyl mercaptan and 40 mass parts of deionized water, at room temperature, at 3000 rpm Stir 30min under the rotating speed of / minute, obtain pre-emulsion; Then pre-emulsion is divided into two parts, wherein, the first part of ...

Embodiment 2

[0046] A water-based pressure-sensitive adhesive, which is composed of a polymer emulsion and a polymethylol compound emulsion, and the parts of each component are as follows:

[0047] 99 parts by mass of polymer emulsion

[0048] 1 part by mass of polymethylol compound emulsion.

[0049] The preparation steps of the above-mentioned water-based pressure-sensitive adhesive are:

[0050] (1) In the first reactor, add 32 parts by mass of butyl acrylate, 35 parts by mass of isooctyl acrylate, 15 parts by mass of methyl methacrylate, 10 parts by mass of methyl acrylate, 2 parts by mass of acrylic acid, 5 parts by mass of Parts of methylol acrylamide, 1 part by mass of acrylamide, 1 part by mass of nonylphenol polyoxyethylene ether ammonium sulfate, 0.38 parts by mass of potassium persulfate, 0.5 parts by mass of n-dodecyl mercaptan and 25 parts by mass of deionized water , at room temperature, stirring at a speed of 1000 rpm for 30 minutes to obtain a pre-emulsion; then divide th...

Embodiment 3

[0055] A water-based pressure-sensitive adhesive, which is composed of a polymer emulsion and a polymethylol compound emulsion, and the parts of each component are as follows:

[0056] 80 parts by mass of polymer emulsion

[0057] 20 parts by mass of polymethylol compound emulsion.

[0058] The preparation steps of the above-mentioned water-based pressure-sensitive adhesive are:

[0059] (1) In the first reactor, add 30 parts by mass of butyl acrylate, 60 parts by mass of isooctyl acrylate, 7 parts by mass of methyl methacrylate, 2 parts by mass of acrylic acid, 1 part by mass of methylol acrylamide, 3 parts by mass of nonylphenol polyoxyethylene ether ammonium sulfate, 2 parts by mass of sodium lauryl sulfate, 0.1 parts by mass of potassium persulfate, 0.05 parts by mass of n-dodecyl mercaptan and 50 parts by mass of deionized water, at room temperature Stirring at 2500 rev / min for 30min to obtain a pre-emulsion; then divide the pre-emulsion into two parts, wherein the firs...

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Abstract

The invention belongs to the field of functional polymer materials, and particularly discloses a waterborne pressure-sensitive adhesive and a preparation method thereof. The waterborne pressure-sensitive adhesive is composed of, by mass, 80-90 parts of a polymer emulsion and 1-20 parts of a multihydroxymethyl compound emulsion. A multihydroxymethyl compound is added and enabled to cross-link with hydroxymethyl or carboxyl on a side chain of a polymer during film forming, so that cross-linking effect of the waterborne pressure-sensitive adhesive is improved. Cross-linking degree of the waterborne pressure-sensitive adhesive can be adjusted conveniently and effectively by adjusting consumption of the multihydroxymethyl compound emulsion to obtain waterborne pressure-sensitive adhesives different in performance.

Description

technical field [0001] The invention belongs to the field of functional polymer materials and relates to a pressure-sensitive adhesive, in particular to a water-based pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Polyacrylate emulsion pressure-sensitive adhesive is an environmentally friendly polymer material with water as the dispersion medium. It has low cost, safe use, no pollution, good adhesion to various materials, colorless and transparent coating film, good It is widely used in the fields of construction, wood, textile and leather, etc., and is a common water-based pressure-sensitive adhesive. However, due to the poor water resistance and stain resistance of the coating film, as well as the disadvantages of cold brittleness and hot stickiness, the expansion of its application range is largely limited. [0003] The molecule of methylol acrylamide has a carbonyl-conjugated double bond and a reactive methylol group. It is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/06C08F220/14C08F220/56C08F220/58C09J133/08C09J11/06
CPCC08F220/18C08F220/1804C08F220/1808C08K5/13C09J11/06C09J133/08C08F220/14C08F220/06C08F220/58C08F220/56
Inventor 陈楚亳王烟岚吴佳琳王梓莹
Owner 广州晶海化工有限公司
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