Water-based acrylate pressure-sensitive adhesive and preparation method thereof

A water-based acrylate and acrylate technology, used in adhesives, ester copolymer adhesives, adhesive types, etc., can solve the problem that acrylic pressure-sensitive adhesives are difficult to achieve high temperature retention, and achieve good adhesion. , High retention force, high solid content

Inactive Publication Date: 2022-02-01
ETERNAL CHEM (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for water-based pure acrylic pressure-sensitive adhesives to achieve good high-temperature retention characteristics, and the system must be modified

Method used

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  • Water-based acrylate pressure-sensitive adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Preparation of pre-emulsion and initiator

[0044] Weigh 1.8g of sodium alkyl succinate sulfonate emulsifier, 0.4g of fatty alcohol polyether emulsifier, 45.3g of butyl acrylate, 6.8g of isooctyl acrylate, 1.7g of ethyl acrylate, 1.8g of acrylic acid, acetoacetate 1 g of ethyl methacrylate, 0.05 g of tert-dodecyl mercaptan, and 8.95 g of deionized water were mixed with mechanical stirring to obtain pre-emulsified component A, and stirred for at least 30 minutes to prevent delamination;

[0045] Weigh 0.1 g of ammonium persulfate and 2.5 g of deionized water, mix and dissolve to obtain component B;

[0046] Weigh 0.15 g of ammonium persulfate and 2.5 g of deionized water, mix and dissolve to obtain component C.

[0047] (2) Emulsion polymerization

[0048] Add 0.05 g of sodium bicarbonate and 19 g of deionized water into a four-necked reaction flask equipped with a mechanical stirrer, a reflux condenser, a thermometer, and a constant pressure funnel, turn on the me...

Embodiment 2

[0053] (1) Preparation of pre-emulsion and initiator

[0054] Weigh 1.6g of sodium alkyl succinate sulfonate emulsifier, 0.6g of fatty alcohol polyether emulsifier, 44.3g of butyl acrylate, 6.8g of isooctyl acrylate, 1.7g of acrylic acid, ethylene urea methacrylate 2 g of base ester, 0.05 g of tert-dodecyl mercaptan, and 8.95 g of deionized water were mixed with mechanical stirring to obtain pre-emulsified component A, and stirred for at least 30 minutes to prevent delamination;

[0055] Weigh 0.12 g of ammonium persulfate and 2.5 g of deionized water, mix and dissolve to obtain component B;

[0056] Weigh 0.13 g of ammonium persulfate and 2.5 g of deionized water, mix and dissolve to obtain component C.

[0057] (2) Emulsion polymerization

[0058] Add 0.05 g of sodium bicarbonate and 19 g of deionized water into a four-necked reaction flask equipped with a mechanical stirrer, a reflux condenser, a thermometer, and a constant pressure funnel, start stirring at a stirring sp...

Embodiment 3

[0063] (1) Preparation of pre-emulsion and initiator

[0064] Weigh 1.6g of dioctyl sodium sulfosuccinate emulsifier, 0.4g of fatty alcohol polyether emulsifier, 45g of butyl acrylate, 6.8g of isooctyl acrylate, 1.7g of acrylic acid, 1g of ethyl acetoacetate methacrylate, 0.5 g of β-carboxyethyl acrylate, 0.05 g of tert-dodecyl mercaptan, and 8.95 g of deionized water, and mechanically stirred to obtain pre-emulsified component A. Stir for at least 30 minutes to prevent delamination;

[0065] Weigh 0.1 g of ammonium persulfate and 2.5 g of deionized water, mix and dissolve to obtain component B;

[0066] Weigh 0.15 g of ammonium persulfate and 2.5 g of deionized water, mix and dissolve to obtain component C.

[0067] (2) Emulsion polymerization

[0068] Add 0.05 g of sodium bicarbonate and 19 g of deionized water into a four-necked reaction flask equipped with a mechanical stirrer, a reflux condenser, a thermometer, and a constant pressure funnel, start stirring at a stirrin...

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Abstract

The invention discloses a water-based acrylate pressure-sensitive adhesive and a preparation method thereof. The pressure-sensitive adhesive is prepared from the following raw materials in parts by weight: 0.5 to 5 parts of acrylic acid or methacrylic acid, 30 to 50 parts of acrylate monomer, 1 to 10 parts of crosslinking functional monomer, 0.1 to 1 part of initiator, 0.5 to 5 parts of emulsifier, 0.01 to 0.5 part of buffering agent, 0.05 to 3 parts of molecular weight regulator, 0.5 to 10 parts of tackifying resin, 0.5 to 5 parts of pH regulator, 45 to 60 parts of deionized water and 0.5 to 5 parts of water-based additive, wherein the cross-linking functional monomer is at least one of beta-carboxyethyl acrylate, diacetone acrylamide, glycidyl methacrylate, acetoacetic acid ethyl methacrylate, methacrylamide ethyl ethylene urea, ethylidene urea ethyoxyl methacrylate and trimethylolpropane trimethacrylate; and the emulsifier comprises an anionic emulsifier and a nonionic emulsifier, and the weight percentage of the anionic emulsifier in the emulsifier is at least 10%. The water-based acrylate pressure-sensitive adhesive has the advantages of high peel strength, high retention, high adhesion and wide use temperature range.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a water-based acrylate pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesive, also known as pressure-sensitive adhesive, is a type of adhesive that is sensitive to pressure. It means that it can be bonded to the adherend with a little pressure. The working principle of pressure-sensitive adhesive is as follows [0003] (1) The pressure sensitive adhesive must be in full contact with the substrate through flow. [0004] (2) The pressure-sensitive adhesive interacts with the substrate. [0005] With the rapid development of the economy, pressure-sensitive adhesives have been widely used in all walks of life. In some special construction and industrial fields, the temperature resistance of high-temperature resistant tapes or labels is usually required to be above 80°C. [0006] Patent CN 102516486A discloses an emulsion pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C08F220/18C08F220/06C08F220/28C08F2/26C08F2/30
CPCC09J133/064C08F220/1804C08F2/26C08F2/30C08F220/1808C08F220/1802C08F220/06C08F220/283C08F220/36
Inventor 纪飞卢彦彬顾俊涛林学全李志强
Owner ETERNAL CHEM (CHINA) CO LTD
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