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Emulsion pressure sensitive adhesive for anti-yellowing surface protective film and preparation method thereof

A surface protection film and anti-yellowing technology, which is applied in the direction of pressure-sensitive films/sheets, adhesives, film/sheet-shaped adhesives, etc., can solve the problems affecting product appearance and performance, yellowing of protective films, etc., to achieve Excellent anti-yellowing performance, good conformability, and the effect of meeting the performance requirements

Active Publication Date: 2016-08-24
SHANGHAI BAOLIJIA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing emulsion-type polyacrylate pressure-sensitive adhesives will have yellowing problems when the protective film is made, which greatly affects the appearance and performance of the product.

Method used

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  • Emulsion pressure sensitive adhesive for anti-yellowing surface protective film and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0047]Embodiment 1, an emulsion pressure-sensitive adhesive for an anti-yellowing surface protective film, which is prepared by polymerizing the raw materials of each component in a reactor. Calculated by weight percentage, the raw materials of each component include:

[0048] Soft monomer 40.5%~45.5%;

[0049] Hard monomer 1.3%~4.3%;

[0050] Functional monomer 1.7%~3.3%;

[0051] Emulsifier 0.8~2.2%;

[0052] Initiator 0.2~0.5%;

[0053] Buffer 0.1~0.2%;

[0054] Neutralizer 0.4~1.3%;

[0055] Oxidant 0.05~0.2%;

[0056] Reducing agent 0.05~0.2%;

[0057] Deionized water 47.5% to 52.5%.

Embodiment approach 2

[0058] Embodiment 2 is the same as Embodiment 1, the difference is that the soft monomer is selected from the group consisting of butyl acrylate, isooctyl acrylate, isooctyl methacrylate, ethyl acrylate, lauryl acrylate, and stearyl acrylate. Any one or a combination of several;

[0059] The hard monomer is selected from any one or a combination of methyl methacrylate, methyl acrylate, and acrylonitrile;

[0060] The functional monomer is selected from any one or a combination of hydroxyethyl acrylate, hydroxypropyl acrylate, acrylic acid, methacrylic acid, hydroxyethyl methacrylate, hydroxypropyl methacrylate, and acrylamide.

Embodiment approach 3

[0061] Embodiment 3, the same as Embodiment 1, the difference is that the emulsifier is an anionic emulsifier selected from sodium dodecyl diphenyl ether disulfonate, sodium lauryl sulfate, allyloxy hydroxypropyl Any one or combination of sodium sulfonate, nonylphenol polyoxyethylene ether ammonium sulfate.

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Abstract

The invention provides an emulsion pressure sensitive adhesive for an anti-yellowing surface protective film. The emulsion pressure sensitive adhesive is prepared by polymerization of various raw material components in a reaction still in percentage by weight: 40.5-45.5 percent of a soft monomer, 1.3-4.3 percent of a hard monomer, 1.7-3.3 percent of a functional monomer, 0.8-2.2 percent of an emulsifier, 0.2-0.5 percent of an initiator, 0.1-0.2 percent of a buffering agent, 0.4-1.3 percent of neutralizer, 0.05-0.2 percent of oxidizing agent, 0.05-0.2 percent of a reducing agent and 47.5-52.5 percent of deionized water. The protective film prepared by the invention is excellent in anti-yellowing property and favorable in adhesion property with color plates and aluminium plates, is free from phenomena such as degumming and adhesive residue after being stripped, has no pollution on substrates and meets the use performance requirements of the protective film.

Description

technical field [0001] The invention relates to an emulsion pressure-sensitive adhesive and a preparation method thereof, in particular to an emulsion pressure-sensitive adhesive for surface protection film and a preparation method thereof. Background technique [0002] The full name of pressure-sensitive adhesive is pressure-sensitive adhesive, which means that the adhesive can immediately achieve the purpose of bonding and cleaning the surface of the adherend by using the touch pressure. The characteristics of the pressure-sensitive adhesive on the surface of the object are that it is easy to stick, not difficult to remove, not damaged when peeled off, and the adhesive layer will not dry up in a long period of time. It is mainly used in the manufacture of pressure-sensitive adhesive products such as pressure-sensitive tapes, adhesive sheets and pressure-sensitive labels, and is widely used in various industries such as light industrial packaging, automobile manufacturing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/10C08F220/14C08F220/06C08F220/28C08F2/26C09J133/08C09J11/06C09J7/02
CPCC09J7/22C09J7/38C09J11/06C09J133/08C08F2/26C08F220/18C08K5/3412C09J2433/00C08F220/1808C08F220/1804C08F220/10C08F220/14C08F220/06C08F220/281
Inventor 史俊苗袁宜恩慕学斐
Owner SHANGHAI BAOLIJIA NEW MATERIAL CO LTD
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