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Self-crosslinking aqueous laminating adhesive and preparation method thereof

A water-based laminating adhesive and self-crosslinking technology, applied in the direction of adhesive type, monocarboxylic acid ester copolymer adhesive, etc., can solve the problems of high cost and non-environmental protection of emulsion type laminating adhesive, and achieve low cost. , the effect of improving cohesion and simple processing technology

Pending Publication Date: 2011-01-26
BEIJING COMENS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiment of the present invention is to provide a self-crosslinking water-based laminating adhesive and its preparation method to solve the problem that the solvent-type laminating adhesive on the market needs to be diluted with a toxic solvent, which is not environmentally friendly, and the product cost of the emulsion-type laminating adhesive is high. problem, to provide a safe, non-toxic, high bonding strength, low-cost water-based laminating adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment provides a self-crosslinking water-based laminating adhesive. The laminating adhesive is made of monomers, emulsifiers, initiators, buffers, deionized water, pH regulators and water-based additives. After pre-emulsification, The laminating glue with a solid content of 40-50% is prepared by the steps of seed reaction, polymerization reaction and compounding;

[0019] Wherein, said monomer comprises hard monomer, soft monomer and functional monomer, wherein hard monomer adopts vinyl acetate (VAc); Soft monomer is made up of butyl acrylate (BA) and ethyl acrylate (EA); The functional monomer is composed of any one of acrylic acid (AA) or methacrylic acid (MAA), any one of hydroxyethyl acrylate (HEA) or hydroxypropyl acrylate (HPA), and N-methylolacrylamide (NMA) composition; according to the total weight of each raw material of the monomer as 100%, the weight percentage of each raw material of the monomer is: the weight ratio of each monomer is 30-50% of vi...

Embodiment 2

[0032] This embodiment provides a self-crosslinking water-based laminating adhesive, which can be used to paste BOPP films on paper products. The laminating adhesive includes the following raw materials:

[0033] Raw material formula parts by weight

[0034] Deionized water 100

[0035] Vinyl acetate 42

[0036] Butyl acrylate 40

[0037] Ethyl acrylate 10

[0038] Methacrylic acid 4

[0039] Hydroxypropyl Acrylate 2.5

[0040] N-Hydroxyacrylamide 1.5

[0041] Alkyl ether ammonium sulfate (emulsifier) ​​1.8

[0042] Alkylphenol polyoxyethylene ether (emulsifier) ​​0.9

[0043] Ammonium persulfate (initiator) 0.5

[0044] Sodium bicarbonate (buffer) 0.12

[0045] Ammonia (pH regulator) 1.2

[0046] Water-based wetting agent (OT-75, Cytec company product) 0.35

[0047] Water-based defoamer (DF691, Rhodia company product) 0.1

[0048] Water-based preservative (A-26, product of Germany Shumei Company) 0.2

[0049] The preparation method of above-mentioned laminating glu...

Embodiment 3

[0055] This embodiment provides a self-crosslinking water-based laminating adhesive, which can be used to paste BOPP films on paper products. The laminating adhesive includes the following raw materials:

[0056] Raw material formula parts by weight

[0057] Deionized water 140

[0058] Vinyl acetate 45

[0059] Butyl acrylate 30

[0060] Ethyl acrylate 16

[0061] Acrylic 3.5

[0062] Hydroxyethyl Acrylate 3.5

[0063] N-methylolacrylamide 2

[0064] Alkyl ether ammonium sulfate (emulsifier A) 2.2

[0065] Alkylphenol polyoxyethylene ether (emulsifier B) 1.1

[0066] Ammonium persulfate (initiator) 0.6

[0067] Ammonium bicarbonate (buffer) 0.18

[0068] Ammonia (pH regulator) 1.6

[0069] Water-based wetting agent (OT-75, Cytec company product) 0.25

[0070] Water-based defoamer (DF691, Rhodia company product) 0.3

[0071] Water-based preservative (A-26, product of Germany Shumei Company) 0.10

[0072] The preparation method of above-mentioned laminating glue, c...

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Abstract

The invention discloses a self-crosslinking aqueous laminating adhesive and a preparation method thereof, and belongs to the field of adhesive manufacture. The laminating adhesive is a laminating adhesive with 40 to 50 percent of solid content, which is prepared from a monomer, an emulsifier, an initiator, a buffer, deionized water, a pH adjuster and an aqueous aid serving as raw materials by the steps of pre-emulsification, seed reaction, polymerization and compounding, wherein the monomer comprises a hard monomer, a soft monomer and a functional monomer, wherein the hard monomer is vinyl acetate; the soft monomer is composed of butyl acrylate and ethyl acrylate; and the functional monomer is composed of one of acrylic acid and methacrylic acid, one of hydroxyethyl acrylate and hydroxypropyl acrylate, and N-hydroxymethyl acrylamide; and the emulsifier is composed of ammonium alkyl ether sulfate and alkylphenol polyoxyethylene ether according to a weight ratio of 2:1. The laminating adhesive is prepared from the monomer vinyl acetate with low cost serving as a raw material, has low cost, and has the advantages of large bonding force and peel strength and high environmental protection.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a self-crosslinking water-based laminating adhesive and a preparation method thereof. Background technique [0002] In recent years, art prints, wrapping paper, advertising calligraphy and painting, book covers and packaging paper bags and cartons are mostly affixed with a layer of polypropylene (BOPP) film to improve the appearance of paper or printed matter and increase its service life. The color printing paper after pasting the film is called plastic paper, also known as laminated paper. Its color is bright and eye-catching, and it has moisture-proof and anti-fouling properties, which is very popular among consumers. This kind of adhesive for sticking BOPP film to paper products is called paper-plastic composite adhesive, referred to as laminating adhesive, and its performance plays a decisive role in the quality of printed matter lamination. There are two types of common laminating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/04C08F218/08C08F220/18C08F220/06C08F220/28C08F220/58C08F2/24
Inventor 陈小锋沈峰邓煜东
Owner BEIJING COMENS NEW MATERIALS
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