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Dry-type compound aqueous paper/plastic laminating emulsion adhesive and preparation method thereof

A dry compounding and laminating adhesive technology is applied in the field of dry compounding water-based paper-plastic laminating adhesive and its preparation, which can solve the problems of poor ink wettability, easy yellowing and peeling, poor water resistance, and poor frost resistance. , to achieve the effect of improving the final peel strength, enhancing stability and small strength difference

Inactive Publication Date: 2010-04-28
BEIJING COMENS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The initial adhesion of VAE emulsion is relatively poor, and the laminated products are easy to yellow and delaminate after being placed for a long time;
[0006] (2) Styrene-acrylic and vinegar-acrylic emulsions have poor water resistance and frost resistance, and poor wettability with ink;
[0007] (3) The cost of pure acrylic emulsion is high and can only be applied to some high-end products

Method used

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  • Dry-type compound aqueous paper/plastic laminating emulsion adhesive and preparation method thereof
  • Dry-type compound aqueous paper/plastic laminating emulsion adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The first embodiment provides a dry composite water-based paper-plastic laminating glue, which is composed of the following raw materials by weight percentage:

[0035] Vinyl acetate-ethylene copolymer 5~20%

[0036] Acrylic monomer 25~40%

[0037] Emulsifier accounts for 1-3% of the total weight of acrylic acid monomer

[0038] Polymerization initiator accounts for 0.4-0.8% of the total weight of acrylic acid monomers

[0039] Post-elimination initiator accounts for 0.2-0.6% of the total weight of acrylic acid monomers

[0040] Buffering agent accounts for 0.1-1% of the total weight of acrylic acid monomers

[0041] Wetting agent 1~3%

[0042] Defoamer 1~3%

[0043] Preservatives 0.1~1%

[0044] Ammonia 1~3%

[0045] The rest is deionized water;

[0046] The above-mentioned acrylic monomer adopts any one of acrylic acid (AA) or methacrylic acid (MAA) and 1 to 2 kinds of acrylate soft monomers; among them, acrylic acid (AA) or methacrylic acid (MAA) accounts for...

Embodiment 2

[0061] The second embodiment provides a dry composite water-based paper-plastic laminating adhesive. The formula (parts by weight) of each component of the laminating adhesive is as follows:

[0062] Part A:

[0063] Deionized water 210

[0064] CO-436 (Rhodia company product) 0.72

[0065] NP-10 (DOW company product) 0.45

[0066] Acrylic (AA) 95

[0067] Ethyl Acrylate (EA) 48

[0068] Butyl Acrylate (BA) 218

[0069] Sodium bicarbonate solution (dissolved into 5wt% solution with deionized water) 50

[0070] Part B:

[0071] Deionized water 180

[0072] CO-436 (Rhodia company product) 0.08

[0073] NP-10 (DOW company product) 0.05

[0074] VAE emulsion (BJ-705, product of Beijing Organic Chemical Factory) 190

[0075] Part C

[0076] Ammonium persulfate solution (dissolved into 4wt% solution with deionized water) 55

[0077] Part D

[0078] tert-butyl hydroperoxide (diluted with 4 times the weight of deionized water) 2

[0079] Hanging white block (dissolved wi...

Embodiment 3

[0091] The second embodiment provides a dry composite water-based paper-plastic laminating adhesive. The formula (parts by weight) of each component of the laminating adhesive is as follows:

[0092] Part A:

[0093] Deionized water 200

[0094] CO-436 (Rhodia company product) 0.64

[0095] NP-10 (DOW company product) 0.56

[0096] Methacrylic acid (MAA) 76

[0097] Ethyl Acrylate (EA) 62

[0098] Isooctyl Acrylate (EHA) 186

[0099] Ammonium bicarbonate solution (dissolved into a 5wt% solution with deionized water) 48

[0100] Part B:

[0101] Deionized water 240

[0102] CO-436 (Rhodia company product) 0.16

[0103] NP-10 (DOW company product) 0.14

[0104] VAE emulsion (BJ-707, product of Beijing Organic Chemical Factory) 160

[0105] Part C

[0106] Ammonium persulfate solution (dissolved into 4wt% solution with deionized water) 52

[0107] Part D

[0108] tert-butyl hydroperoxide (diluted with 4 times the weight of deionized water) 2

[0109] Hanging white b...

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Abstract

The embodiment of the invention provides a dry-type compound aqueous paper / plastic laminating emulsion adhesive and a preparation method thereof; the laminating emulsion adhesive is composited by the following raw materials by weight percentage: 5-20 percent of vinyl acetate monomer- ethylene copolymer, 25-40 percent of acrylic monomer, emulsifying agents accounting for 1-3 percent of total weight of the acrylic monomer, polymerization initiator accounting for 0.4-0.8 percent of total weight of the acrylic monomer, post-elimination initiator accounting for 0.2-0.6 percent of total weight of the acrylic monomer, 1-3 percent of wetting agents, 1-3 percent of defoaming agents, 0.1-1 percent of preservative, and the remaining is deionized water. By utilizing the formula, acrylic monomer pre-emulsification, VAE emulsion treatment, VAE / PA compound emulsion preparation and post-treatment steps are carried out to obtain the compound emulsion which is used as the dry-type compound aqueous paper / plastic laminating emulsion adhesive. The laminating emulsion adhesive has economical efficiency of VAE emulsion and good bonding performance of polyacrylic emulsion, and the performance of the laminating emulsion adhesive is superior to the VAE emulsion and is equivalent to the polyacrylic emulsion; the peel strength of the laminating emulsion adhesive has no obvious recession and can be kept more than one year, so as to avoid delaminating risk of the laminating products.

Description

technical field [0001] The invention belongs to the technical field of polymer preparation, and in particular relates to a dry composite water-based paper-plastic laminating adhesive and a preparation method thereof. Background technique [0002] Paper-plastic composite products are a kind of composite material widely used in the modern packaging industry. It uses adhesives to compound non-polar difficult-to-stick materials such as polypropylene (PP), polyethylene (PE) and other plastic films with polar paper prints. Together, it greatly improves the application performance and appearance of printed products, and is widely used in decorative building materials, packaging materials, hardcover books, product advertisements and manuals, etc. [0003] There are three main types of paper-plastic composite adhesives currently on the market: solvent-based, hot-melt and water-emulsion. The industry mainly uses solvent-based paper-plastic composite adhesives, commonly used are polyo...

Claims

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Application Information

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IPC IPC(8): C09J133/06C09J123/08C09J131/04
Inventor 陈小锋沈峰邓煜东
Owner BEIJING COMENS NEW MATERIALS
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