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Paper-plastic composite adhesive

A paper-plastic composite and adhesive technology, applied in the direction of adhesive, adhesive type, rosin adhesive, etc., can solve the problems of many pores, rough paper surface, etc., and achieve the effect of simple operation, good hygienic performance, and good adaptability

Inactive Publication Date: 2021-02-19
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. The surface of the paper is rough and has many pores

Method used

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  • Paper-plastic composite adhesive
  • Paper-plastic composite adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A paper-plastic composite adhesive, its raw material components are:

[0026] 5.5 grams of emulsifier solution, 195 grams of mixed monomers, 2.0 grams of ammonium persulfate initiator, 5 grams of 10 wt% sodium bicarbonate solution and 110 grams of rosin tackifying emulsion.

[0027] The emulsifier solution is a mixture of sodium lauryl sulfate and OP10, the mass ratio of the two is 1:2; the mixed monomer is a mixture of the following three: 100 grams of butyl acrylate, 75 grams of vinyl acetate and 20 grams of acrylic acid .

[0028] Described rosin thickening emulsion preparation method is:

[0029] (1) Add 120 grams of rosin to a three-necked flask, add 100 ml of alcohol, heat at 80°C until the rosin dissolves, add 6 grams of rosin emulsifier and 60 ml of 80°C hot water, stir vigorously for 30 minutes until milky white, and cool down to 70°C;

[0030] (2) Under strong stirring, add 40 milliliters of 10wt% polyvinyl alcohol solution dropwise, finish dripping within 3...

Embodiment 2

[0052] A paper-plastic composite adhesive, its raw material components are:

[0053] 6.5 grams of emulsifier solution, 210 grams of mixed monomers, 1.6 grams of ammonium persulfate initiator, 10 grams of 10 wt% sodium bicarbonate solution, and 105 grams of rosin viscosity-increasing emulsion.

[0054] The emulsifier solution is a mixture of sodium lauryl sulfate and OP10, and the mass ratio of the two is 1:2. The mixed monomer is a mixture of the following three: 110 grams of butyl acrylate, 80 grams of vinyl acetate and 20 grams of acrylic acid.

[0055] Described rosin thickening emulsion preparation method is:

[0056] (1) Add 110 grams of rosin to a three-necked flask, add 95 ml of alcohol, heat to 80°C until the rosin dissolves, add 5.5 grams of rosin emulsifier and 55 ml of 80°C hot water, stir vigorously for 30 minutes until milky white, and cool down to 70°C;

[0057] (2) Under strong stirring, add 35 milliliters of 10wt% polyvinyl alcohol solution dropwise, finish d...

Embodiment 3

[0060] A paper-plastic composite adhesive, its raw material components are:

[0061] 6.0 grams of emulsifier solution, 200 grams of mixed monomers, 1.8 grams of ammonium persulfate initiator, 8 grams of 10 wt% sodium bicarbonate solution, and 100 grams of rosin viscosity-increasing emulsion.

[0062] The emulsifier solution is a mixture of sodium lauryl sulfate and OP10, and the mass ratio of the two is 1:2. The mixed monomer is a mixture of the following three: 100 grams of butyl acrylate, 80 grams of vinyl acetate and 20 grams of acrylic acid.

[0063] Described rosin thickening emulsion preparation method is:

[0064] (1) Add 135 grams of rosin into a three-necked flask, add 105 ml of alcohol, heat to 80°C until the rosin dissolves, add 6.5 grams of rosin emulsifier and 65 ml of 80°C hot water, stir vigorously for 30 minutes until milky white, and cool down to 70°C;

[0065] (2) Under vigorous stirring, add 45 milliliters of 10wt% polyvinyl alcohol solution dropwise, fini...

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Abstract

The invention relates to a paper-plastic composite adhesive, which comprises the following raw material components: 5.5-6.5 g of an emulsifier solution, 180-220 g of a mixed monomer, 1.5-2.1 g of an ammonium persulfate initiator, 5-10 g of a 10wt% sodium bicarbonate solution, and 90-110 g of a rosin tackifying emulsion, wherein the emulsifier solution is a mixture of lauryl sodium sulfate and OP10, and the mass ratio of the lauryl sodium sulfate to OP10 is 1: 2; and the mixed monomer is a mixture of the following three components: 90-110 g of butyl acrylate, 70-90 g of vinyl acetate and 10-30g of acrylic acid. According to the invention, by changing the type and composition of the monomer, adding the emulsified rosin into the polymer emulsion and selecting the type and dosage of the emulsifier and the dosage of the initiator, the obtained composite adhesive is high in bonding strength, good and stable in brightness, and good in stability and water resistance.

Description

technical field [0001] The invention relates to an adhesive used in the printing and packaging industry, in particular to a paper-plastic composite adhesive. Background technique [0002] At present, my country's flexible packaging printing industry is developing rapidly and has become an important pillar industry in my country's economic development. From the packaging of various commodities in supermarkets, we can know that various plastic flexible packaging with beautiful appearance has become the mainstream of commodity packaging. With the rapid development of flexible packaging, various functional materials are used more and more widely. At the same time, because the country vigorously advocates green environmental protection, many domestic enterprises have begun to focus on the development of environmentally friendly packaging materials. [0003] The paper-plastic composite packaging bag that appeared more than 10 years ago used a one-component adhesive with toluene as...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J193/04C09J11/08C08F220/18C08F218/08C08F220/06
CPCC08L2205/03C09J11/08C09J133/066C08F220/1804C08L93/04C08L29/04C08F218/08C08F220/06
Inventor 吴宏京李林远
Owner XI AN JIAOTONG UNIV
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