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Pressure-sensitive adhesive emulsion, preparation method and high-holding protective film prepared from pressure-sensitive adhesive emulsion

A pressure-sensitive adhesive emulsion, pressure-sensitive adhesive technology, applied in the direction of adhesives, film/sheet adhesives, non-polymer adhesive additives, etc., can solve the problems of degumming, adhesive layer sliding, damage, etc. Initial tack and peel strength, high tack, high tack effect

Active Publication Date: 2013-12-25
潍坊胜达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The pressure-sensitive adhesive with good initial tack has a good wetting effect on the substrate and strong adhesion, but it will affect the cohesive strength of the pressure-sensitive adhesive, reduce the stickiness, cause the adhesive layer to slide or break, and even cause degumming.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A pressure-sensitive adhesive emulsion, comprising the following raw materials prepared by weight:

[0033] Component 1, butyl acrylate 470g;

[0034] Component 2, a mixture consisting of 18.8g of hydroxyethyl acrylate and 4.7g of acrylic acid;

[0035] Component three, octylphenol polyoxyethylene ether 1.21g, sodium alkylbenzene sulfonate 1.26g, is 0.5wt% of the total weight of component 1 and component 2 raw materials 493.5g;

[0036] Component four, ammonium persulfate 1.97g, is 0.4wt% of component one and component two raw material gross weights;

[0037] Component five, dodecyl mercaptan 2.47g, is 0.5wt% of the total weight of raw materials of component one and component two;

[0038] In this embodiment, 345g of deionized water is used as the medium, which is 70wt% of the total weight of the raw materials of component 1 and component 2.

[0039] The preparation steps are as follows:

[0040] S1. Preparation of pre-emulsion: Add 470g of butyl acrylate, 18.8g of ...

Embodiment 2

[0046] A pressure-sensitive adhesive emulsion, comprising the following raw materials prepared by weight:

[0047] Component 1, a mixture of 526g butyl acrylate and 12.4g isooctyl acrylate;

[0048] Component two, a mixture consisting of 93 g of methyl methacrylate and 93 g of vinyl acetate.

[0049] Component three, octylphenol polyoxyethylene ether 9.1g, alkyl diphenyl ether sodium disulfonate 9.0g, is 2.5wt% of the total weight of component one and component two raw materials;

[0050] Component four, potassium persulfate 3.6g, is 0.5wt% of component one and component two raw material gross weights;

[0051] Component five, dodecyl mercaptan 2.9g, is 0.4wt% of the total weight of the raw materials of component one and component two;

[0052] In this embodiment, 1448.8g deionized water is used as the medium, which is 200wt% of the total weight of the raw materials of component 1 and component 2.

[0053] The preparation steps are as follows:

[0054]S1. Preparation of pr...

Embodiment 3

[0060] A pressure-sensitive adhesive emulsion, comprising the following raw materials prepared by weight:

[0061] Component 1, a mixture of 216g butyl acrylate and 86.4g isooctyl acrylate;

[0062] Component 2, a mixture consisting of 64.8 g of methyl methacrylate, 64.8 g of vinyl acetate, 21.6 g of hydroxyethyl acrylate, and 8.64 g of acrylic acid.

[0063] Component three, 4.62g of octylphenol polyoxyethylene ether, is 1.0wt% of the total weight of the raw materials of component one and component two;

[0064] Component four, ammonium persulfate 2.1g, is 0.45wt% of the total weight of the raw materials of component one and component two;

[0065] Component five, dodecyl mercaptan 2.1g, is 0.45wt% of the total weight of component one and component two raw materials;

[0066] In this embodiment, 462.24 g of deionized water is used as the medium, which is 100 wt% of the total weight of the raw materials of component 1 and component 2.

[0067] The preparation steps are as f...

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Abstract

The invention discloses a pressure-sensitive adhesive emulsion. The pressure-sensitive adhesive emulsion is prepared from a component A and a component B, wherein the component A is acrylate used for adhesive power of the pressure-sensitive adhesive and has side chain alkyl carbon atoms of 4-8 and is a mixture of 50-85 parts by weight of butyl acrylate and 2-20 parts by weight of 2-ethylhexyl acrylate; the component B is a rigid monomer compound for enhancing the cohesive force of the pressure-sensitive adhesive and is a mixture of two or more of 1-15 parts by weight of methyl methacrylate, 1-15 parts by weight of vinyl acetate, 2-5 parts by weight of 2-hydroxyethyl acrylate and 0.5-2 parts by weight of acrylic acid. The pressure-sensitive adhesive emulsion provided by the invention is capable of guaranteeing good initial adhesion and high holding power under good peeling strength.

Description

technical field [0001] The invention relates to the technical field of pressure-sensitive adhesives for protective films, in particular to a pressure-sensitive adhesive emulsion, a preparation method and a high-stick-holding protective film prepared by the same. Background technique [0002] At present, there are two types of acrylic pressure-sensitive adhesives: solvent-based and emulsion-based. Solvent type is produced by solution polymerization, and generally contains 50-70% organic solutes, such as ethyl acetate, toluene, butanone, etc. When in use, after coating and drying process, the solvent volatilizes into the atmosphere at this time, forming a large pollution; while the emulsion type is produced by the method of emulsion polymer, water is used instead of the above solvent, after coating, drying When the dry process produces the protective film, what evaporates into the atmosphere is water. Therefore, emulsion-type pressure-sensitive adhesives have become the most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F218/08C08F220/28C08F220/06C08F2/38C08F2/30C08F2/26C09J133/08C09J7/02C09J11/06
Inventor 周国梁
Owner 潍坊胜达科技股份有限公司
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