High-performance waterborne pressure-sensitive adhesive and preparation method thereof and PE protective film

A high-performance, pressure-sensitive adhesive technology, applied in the direction of adhesives, film/sheet adhesives, adhesive types, etc., can solve the problems of long oven length, large workshop space, high drying temperature, etc.

Inactive Publication Date: 2016-09-28
JIANGYIN JIANGTAI HIGH POLYMER NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires a higher drying temperature and a longer oven length. The water-based acrylic pressure-sensitive adhesive is mainly coated on the PE substrate. If the temperature is too high, the PE substrate will soften, wrinkle or even break during the coating process; a longer oven occupies Large workshop space requires high investment
On the other hand, a large amount of emulsifiers are used in the preparation of water-based acrylic pressure-sensitive adhesives, resulting in poor water resistance of water-based acrylic pressure-sensitive adhesives. Especially in high-temperature and high-humidity environments, the PE protective film is easy to fall off from the attached object and cannot protect role, these limit the use of water-based acrylic pressure-sensitive adhesives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing a high-performance water-based pressure-sensitive adhesive, comprising the following steps,

[0042] ① Seed emulsion preparation: mix 100 parts by weight of deionized water, 0.1-0.7 parts by weight of emulsifier, and 0.4-1.2 parts by weight of pH regulator, stir evenly, and mix 60--88 parts by weight of alkyl carbon atoms 1--6 alkyl methacrylates, 5--22 parts by weight of alkyl acrylates with 4--18 alkyl carbon atoms, 0.01-0.1 parts by weight of chain transfer agent, using 100- Stir evenly at a speed of -500 rpm, start to heat up to 60-90°C, pass nitrogen through the system to remove oxygen, and then add 0.3-3.0 parts by weight of initiator to the system, and the initiation system starts to polymerize, and the reaction is 10- -50 minutes, obtain seed emulsion;

[0043] ② Pre-emulsion preparation: Mix 400 parts by weight of deionized water and 0.4-2.8 parts by weight of emulsifier, stir evenly at a stirring speed of 300--800 rpm, and then slowly m...

Embodiment 2

[0053] A high-performance water-based pressure-sensitive adhesive comprises the following components in mass percent:

[0054] Acrylate monomer 40-45%;

[0055] Functional monomer 2-10%;

[0056] Emulsifier 1.1-2.0%;

[0057] Stabilizer 1-4%;

[0058] Initiator 0.5-0.7%;

[0059] Water 30-50%;

[0060] The percentage sum of each component is 100%

[0061] Wherein, the acrylate monomer is: one or more of methyl acrylate, ethyl acrylate, butyl acrylate, isooctyl acrylate, lauryl acrylate and octadecyl acrylate;

[0062] The functional monomers are: acrylic acid, methacrylic acid, maleic anhydride, itaconic acid, hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, methylol acrylamide, acrylamide and glycidyl methacrylate one or more of esters;

[0063] The emulsifier is an anionic emulsifier and a nonionic emulsifier combined to form a composite emulsifier; the anionic emulsifier is sodium vinyl sulfonate, sodium allyl sulfonate, allyl polyether sulfa...

Embodiment 3

[0065] A kind of high-performance water-based pressure-sensitive adhesive, differs from implementation two in that the mass percentage is as follows:

[0066] Acrylate monomer 45-70%;

[0067] Functional monomer 2-10%;

[0068] Emulsifier 1.1-2.0%;

[0069] Stabilizer 1-4%;

[0070] Initiator 0.5-0.7%;

[0071] Water 30-50%;

[0072] The percentage sum of each component is 100%.

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PUM

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Abstract

The invention discloses a high-performance waterborne pressure-sensitive adhesive for a polyethylene protective film. A mode of seed emulsion polymerization is adopted, a seed emulsion is prepared, a pre-emulsion is dropwise added to the seed emulsion, reaction is conducted completely in a mode of replenishing an initiator, cooling, pH value adjusting and filtering are conducted, and the high-performance waterborne pressure-sensitive adhesive is obtained. The invention further provides the polyethylene protective film of the waterborne pressure-sensitive adhesive. The prepared emulsion pressure-sensitive adhesive can obtain the protective film with proper peel strength by adjusting the dosage of a cross-linking agent and coated adhesive quantity and is widely used for door window framework profiles, window frame profiles, solar frame profiles, decorative panels such as aluminum-plastic panels and plastic gusset plates, curtain wall profiles and decoration strip profiles.

Description

technical field [0001] The invention relates to a glue for a protective film, in particular to a high-performance water-based pressure-sensitive adhesive, a preparation method thereof and a PE protective film. Background technique [0002] Solvent-based pressure-sensitive adhesives have excellent performance and are widely used in the electronics industry, automobile industry, packaging and other fields. The disadvantage is that the solvent causes great harm to the environment and workers, and at the same time, the solvent has high requirements on the explosion-proof equipment. Water-based acrylic pressure-sensitive adhesive uses water as the dispersion medium, which is non-polluting and environmentally friendly. As people pursue environmentally friendly materials and improve their awareness of environmental protection, water-based acrylic pressure-sensitive adhesives are receiving more and more attention. [0003] When making PE protective film, in order to pursue the two-...

Claims

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Application Information

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IPC IPC(8): C09J133/08C08F220/14C08F220/18C08F220/06C08F222/06C08F222/02C08F220/28C08F220/58C08F220/56C08F220/32
CPCC08F220/14C08F220/18C09J7/20C09J133/08C09J2301/302C09J2301/414C08F220/1804C08F220/1808C08F220/1812C08F220/1818C08F220/06C08F222/02C08F222/06C08F220/281C08F220/58C08F220/56C08F220/325
Inventor 张嘉磊张国良
Owner JIANGYIN JIANGTAI HIGH POLYMER NEW MATERIAL CO LTD
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