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A kind of slightly viscous emulsion pressure-sensitive adhesive and its preparation method

A hydraulic, slightly sticky technology, applied in adhesive types, ester copolymer adhesives, etc., to save costs, reduce pollution, and eliminate dispensing errors

Active Publication Date: 2017-11-07
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention proposes a solution to the defects of using organic solvents or two-components in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The slightly viscous emulsion pressure-sensitive adhesive of the present invention is prepared by polymerizing the raw materials of each component in a reactor, and its composition ratio is as follows in parts by weight:

[0042] 2-ethylhexyl acrylate 37.6

[0043] Butyl acrylate 0

[0044] Acrylic 1.6

[0045] N-methylolacrylamide 0.4

[0046] Allyl methacrylate 0.4

[0047] Nonylphenol polyoxyethylene (4) ether ammonium sulfate 0.2

[0048] Nonylphenol polyoxyethylene (10) ether 0.04

[0049] Ammonium persulfate 0.2

[0050] Sodium bicarbonate 0.2

[0051] Dimethylethanolamine 0.4

[0052] Deionized water 58.96.

[0053] The concrete steps of the preparation method of the slightly viscous emulsion pressure-sensitive adhesive of the present invention are as follows:

[0054] (1) Mix 40% deionized water, 60% ammonium persulfate, 40% nonylphenol polyoxyethylene (4) ether ammonium sulfate and all nonylphenol polyoxyethylene (10) ether, acrylic acid-2 - Ethylhexy...

Embodiment 2

[0059] The slightly viscous emulsion pressure-sensitive adhesive of the present invention is prepared by polymerizing the raw materials of each component in a reactor, and its composition ratio is as follows in parts by weight:

[0060] 2-Ethylhexyl Acrylate 20

[0061] Butyl acrylate 18

[0062] Acrylic 1.2

[0063] N-methylolacrylamide 0.4

[0064] Allyl methacrylate 0.4

[0065] Nonylphenol polyoxyethylene (4) ether ammonium sulfate 0.28

[0066] Octylphenol polyoxyethylene (10) ether 0.08

[0067] Ammonium persulfate 0.16

[0068] Sodium bicarbonate 0.16

[0069] 25% ammonia 0.3

[0070] Deionized water 59.02.

[0071] The concrete steps of the preparation method of the slightly viscous emulsion pressure-sensitive adhesive of the present invention are as follows:

[0072] (1) Mix 50% deionized water, 50% ammonium persulfate, 28.6% nonylphenol polyoxyethylene (4) ether ammonium sulfate, and all octylphenol polyoxyethylene (10) ether, acrylic acid- Add 2-ethylhexyl e...

Embodiment 3

[0077] The slightly viscous emulsion pressure-sensitive adhesive of the present invention is prepared by polymerizing the raw materials of each component in a reactor, and its composition ratio is as follows in parts by weight:

[0078] 2-Ethylhexyl Acrylate 28

[0079] Butyl acrylate 10

[0080] Acrylic 0.8

[0081] N-methylolacrylamide 0.8

[0082] Trimeric isocyanate triacrylate 0.4

[0083] Sodium dodecyl diphenyl ether disulfonate 0.28

[0084] Ammonium persulfate 0.12

[0085] Sodium bicarbonate 0.12

[0086] 25% ammonia 0.2

[0087] Deionized water 59.28.

[0088] The concrete steps of the preparation method of the slightly viscous emulsion pressure-sensitive adhesive of the present invention are as follows:

[0089] (1) Mix 45% deionized water, 28.6% sodium dodecyl diphenyl ether disulfonate, 33.3% ammonium persulfate and all 2-ethylhexyl acrylate, butyl acrylate, acrylic acid, Add N-methylol acrylamide and isocyanate triacrylate into an emulsification tank fo...

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Abstract

The invention discloses a slightly-viscous emulsion pressure-sensitive adhesive and a preparation method thereof. The pressure-sensitive adhesive is prepared from 2-ethylhexyl acrylate, butyl acrylate, acrylic acid, N-Methylolacrylamide and a cross-linking monomer by employing a pre-emulsification semi-continuous polymerization technology for polymerization. The safety and environment friendliness problems of a slightly-viscous pressure-sensitive adhesive because of contained organic solvents in the prior art are solved. An adhesive tape prepared from the slightly-viscous emulsion pressure-sensitive adhesive possesses the peeling strength less than 0.15 N / 25 mm at 180 DEG C, the slightly-viscous emulsion pressure-sensitive adhesive is safe and environment-friendly, and is capable of replacing a part of solvent type slightly-viscous emulsion pressure-sensitive adhesives and being applied to corresponding fields.

Description

technical field [0001] The invention relates to the preparation of a pressure-sensitive adhesive, in particular to a single-component slightly viscous acrylate emulsion pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesives can generally be divided into ultra-high-viscosity pressure-sensitive adhesives, high-viscosity pressure-sensitive adhesives, medium-viscosity pressure-sensitive adhesives, low-viscosity pressure-sensitive adhesives and slightly viscous pressure-sensitive adhesives according to their peel strength. Widely used in production, such as electronic protection tape, pressure-sensitive adhesive for protecting materials with smooth surface, etc., its 180º peel strength is usually less than 0.20N / 25mm. At present, the slightly viscous pressure-sensitive adhesives on the market are generally solvent-based pressure-sensitive adhesives, and the solvent used is ethyl acetate or a mixed solvent of ethyl ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C08F220/18C08F220/06C08F220/58C08F2/30C08F2/26
Inventor 冯小平何伟武鹏李胜华姜云刚
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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