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Water-based paper and plastic laminating/peelable adhesive and method for manufacturing same

A technology of peeling off glue and paper plastic, applied in the direction of adhesives, polyurea/polyurethane adhesives, adhesive types, etc., can solve the problems of high bonding strength, tearing paper scraps, paper damage, etc., to achieve convenient construction and use , The effect of complete paper protection and increased gloss

Inactive Publication Date: 2013-12-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The laminating adhesive disclosed in the patent document CN201210015459.X is compounded with EVA emulsion and PU emulsion. Because the bonding strength is too large, 100% of the paper is destroyed when the paper and plastic are separated; Polyurethane laminating adhesive needs to be mixed with two components during glue coating construction, and the mixed glue has a certain construction time limit, which causes inconvenience in construction. At the same time, this laminating adhesive is mainly used in aluminum-plastic composite and plastic-plastic composite. When applied to paper-plastic composite, the film is easy to tear with paper dust when it is separated from the paper, which affects the performance and appearance of packaging products

Method used

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  • Water-based paper and plastic laminating/peelable adhesive and method for manufacturing same
  • Water-based paper and plastic laminating/peelable adhesive and method for manufacturing same
  • Water-based paper and plastic laminating/peelable adhesive and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Take 15g Silok-414L from Silok Chemical, 20g water-based wax emulsion WE-6 from BASF, 5g TL-204 from Longkou Yijiu Chemical, 15g water-based PU330 from Litai Chemical, 20g UH650 from Qingfeng Chemical, 10g Haohe Mix the 4825 of the chemical industry and place it in the dispersing kettle. At a stirring speed of 700rpm, add 0.3g of the SPA‐202 defoamer of Hengduo Chemical at room temperature and disperse for 10 minutes;

[0055] (2) After adjusting the stirring speed in step (1) to 300rpm, add 3g clay and 3g kaolin, and stir for 15min;

[0056] (3) Keep the stirring speed in (2) constant, add 4g terpene resin emulsion T‐120, 5g natural latex MRD2116, and disperse for 15min;

[0057] (4) Keep the stirring speed in (3) constant, add 2g of methyltriethoxysilane, 3g of 3‐aminopropyltriethoxysilane, and disperse for 10min;

[0058] (5) Keep the stirring speed in (4) constant, add 0.2g of Hantai Chemical’s HT-925, adjust the viscosity of the system to the construction visc...

Embodiment 2

[0070] (1) Take 10g of high melting point oxidized polyethylene wax emulsion ML-1600 of Meilun Chemical, 15g of modified polyethylene wax emulsion AE810 of Shanghai Motian Chemical, 10g of water-based polyethylene primary dispersion PE02 and 20g of Shanghai Motian Chemical Bayer U54, 15g of Audemars F207, 15g of Litai Chemical's water-based PU330 are mixed and placed in a dispersion tank. At a stirring speed of 1000rpm, add 0.5g of German BYK-045 defoamer at room temperature and disperse for 20 minutes;

[0071] (2) After adjusting the stirring speed in step (1) to 500rpm, add 1g clay and 2g calcium carbonate, and stir for 20min;

[0072] (3) Keep the stirring speed in (2) constant, add 6g water-based rosin glyceride emulsion T‐201, 4g water-based epoxy resin emulsion BC5175, and disperse for 30min;

[0073] (4) Keep the stirring speed in (3) constant, add 2g of 3-aminopropyltriethoxysilane, 2g of 3-glycidyloxypropyltrimethoxysilane, and disperse for 20min;

[0074] (5) Keep ...

Embodiment 3

[0086] (1) Take 15g of BASF's water-based wax emulsion WE‐1, 10g of Shanghai Xinnuo Chemical's WE‐118B, 10g of Longkou Yijiu Chemical's TL‐204 and 15g of Haohe Chemical 4825, 20g of Litai Chemical's water-based PU330, 20g of Qingfeng Chemical After mixing UH650, put it in a dispersion tank, add 0.2g BKY-045 from BYK and 0.2g DEUCHEM091 defoamer from Deqian at room temperature at a stirring speed of 900rpm, and disperse for 25min;

[0087] (2) After adjusting the stirring speed in step (1) to 500rpm, add 5g of chalk powder and 5g of calcium carbonate, and stir for 60min;

[0088] (3) Keep the stirring speed in (2) constant, add 2g of terpene resin emulsion T‐120, 3g of water-based rosin resin emulsion 10, and disperse for 25min;

[0089] (4) Keep the stirring speed in (3) constant, add 2g of methyltriethoxysilane, 3g of 3‐aminopropyltriethoxysilane, and disperse for 30min;

[0090] (5) Keep the stirring speed in (4) constant, add 0.2g of AD‐13 from Angdi Chemical, 0.2g of HT‐9...

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Abstract

The invention discloses water-based paper and plastic laminating / peelable adhesive and a method for manufacturing the same. The water-based paper and plastic laminating / peelable adhesive comprises, by mass, 35-45 parts of wax emulsion, 45-55 parts of water-based polyurethane emulsion, 1-20 parts of tackifying resin, 1-5 parts of additives, 1-5 parts of coupling agents, 0.2-0.5 part of defoamers and 0.2-0.5 part of thickeners. The water-based paper and plastic laminating / peelable adhesive and the method have the advantages that the wax emulsion, the water-based polyurethane emulsion, the additives, the tackifying resin, the coupling agents, the thickeners and the defoamers are compounded with one another to finally manufacture the water-based paper and plastic laminating / peelable adhesive, the water-based paper and plastic laminating / peelable adhesive is high-temperature-resistant and is high in initial adhesion, permanent adhesion and peel strength when used for laminating paper and plastics, the paper cannot be torn by an adhesion surface of a film when separated from the plastics, and is prevented from being damaged, and the adhesion surface is not sticky after the paper is separated from the plastics.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a water-based paper-plastic laminating / peelable adhesive and a preparation method thereof. technical background [0002] In the packaging industry, plastic films such as PP, PE, BOPP, etc. are often combined with paper using adhesives to meet the performance of waterproof, moisture-proof, wear-resistant, and folding resistance. The adhesive used is called paper-plastic laminating glue. Now some new packaging industries use paper-plastic composite sealing packaging products. When using unpacked products, the plastic film is easily separated from the paper, which is called paper-plastic lamination / peelable adhesive. Paper-plastic laminating / peelable adhesive, on the basis of satisfying the performance of paper-plastic laminating adhesive, also needs to meet the requirements that when paper and plastic are separated, the paper will not be damaged, the plastic film will not be tor...

Claims

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Application Information

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IPC IPC(8): C09J175/04C09J191/06C09J11/04C09J11/06
Inventor 皮丕辉薛超霞文秀芳蔡智奇徐守萍程江
Owner SOUTH CHINA UNIV OF TECH
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