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Adhesive for packaging and preparation method of adhesive

A technology of adhesive and toughening agent, applied in the field of packaging adhesive and its preparation, can solve the problems of poor effect and achieve the effects of reducing cost, improving performance, increasing fusion degree and dispersion uniformity

Inactive Publication Date: 2019-08-02
东莞市奥嘉特高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing adhesives are mainly acrylic resin materials, starch materials, etc.; and how to combine acrylic resin materials and starch materials to prepare adhesives needs to overcome the following problems, because the density of the two is different, therefore, mixing evenly The degree of determination determines the final quality of the product, so as to avoid the problem that when using the product, some effects are good and some effects are poor

Method used

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  • Adhesive for packaging and preparation method of adhesive
  • Adhesive for packaging and preparation method of adhesive
  • Adhesive for packaging and preparation method of adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The invention provides an adhesive for packaging, comprising the following raw materials in parts by mass:

[0039] 250 parts of acrylic resin, 250 parts of corn starch, 600 parts of deionized water, 5 parts of curing agent, 9 parts of vegetable toughening agent, 150 parts of asbestos fiber, 150 parts of porcelain powder, 7 parts of oxidizing agent, 4 parts of hydrogen peroxide, hydrogen 2 parts of sodium oxide, 4 parts of polyvinyl alcohol, 2.5 parts of formaldehyde, 1.5 parts of hydrochloric acid, 6 parts of esterification assistant and 1.5 parts of emulsifier.

[0040] Vegetable tougheners include starch tougheners, citric acid ester tougheners and vegetable oil bases or any combination of several; vegetable oil bases are epoxidized vegetable oils, including but not limited to epoxidized soybean oil, linseed oil, rice bran oil, sunflower oil, castor oil, cottonseed oil and sunflower oil.

[0041] Acrylic resins include butyl acrylate and methyl acrylate;

[0042] T...

Embodiment 2

[0067] The difference from Example 1 is that an adhesive for packaging provided by the present invention includes the following raw materials in parts by mass:

[0068] 200 parts of acrylic resin, 200 parts of corn starch, 500 parts of deionized water, 2 parts of curing agent, 4 parts of vegetable toughening agent, 100 parts of asbestos fiber, 50 parts of porcelain powder, 6 parts of oxidizing agent, 3 parts of hydrogen peroxide, hydrogen 1 part of sodium oxide, 3 parts of polyvinyl alcohol, 2 parts of formaldehyde, 1 part of hydrochloric acid, 4 parts of esterification assistant.

[0069] The preparation method of the adhesive is as follows: according to the component ratio of the above-mentioned adhesive mass meter, the specific steps are as follows:

[0070] Step 100. Prepare water-based acrylic resin emulsion: Take 200 parts of acrylic resin and 250 parts of deionized water, add them to the mixer, add 1 part of emulsifier continuously while stirring, stir until an emulsion...

Embodiment 3

[0079] The invention provides an adhesive for packaging, comprising the following raw materials in parts by mass:

[0080] 300 parts of acrylic resin, 300 parts of corn starch, 700 parts of deionized water, 8 parts of curing agent, 15 parts of plant-type toughening agent, 200 parts of asbestos fiber, 200 parts of porcelain powder, 9 parts of oxidizing agent, 6 parts of hydrogen peroxide, hydrogen 3 parts of sodium oxide, 5 parts of polyvinyl alcohol, 3 parts of formaldehyde, 2 parts of hydrochloric acid, 8 parts of esterification auxiliary agent, and 2 parts of emulsifier.

[0081] The preparation method of the adhesive is as follows: according to the component ratio of the above-mentioned adhesive mass meter, the specific steps are as follows:

[0082] Step 100, prepare water-based acrylic resin emulsion: take 300 parts of acrylic resin and 350 parts of deionized water, add them to the mixer, add 2 parts of emulsifier continuously while stirring, stir until an emulsion is for...

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Abstract

The invention discloses an adhesive for packaging. The adhesive is prepared from raw materials in parts by mass as follows: 200-300 parts of acrylic resin, 200-300 parts of corn starch, 500-700 partsof deionized water, 2-8 parts of a curing agent, 4-15 parts of a plant type toughening agent, 100-200 parts of asbestos fiber, 50-200 parts of porcelain powder, 6-9 parts of an oxidizing agent, 3-6 parts of hydrogen peroxide, 1-3 parts of sodium hydroxide, 3-5 parts of polyvinyl alcohol, 2-3 parts of formaldehyde, 1-2 parts of hydrochloric acid, 4-8 parts of an esterification aid and 1-2 parts ofan emulsifier. The combination form of a prepared waterborne acrylic resin emulsion and a starch dispersion is adopted, the problem of combination of the two components is solved, the use cost of acrylic resin is reduced, meanwhile, by adopting a superfine grinding technology and a disc stirring container stirring manner, the fusion degree and dispersion uniformity among all raw materials are increased, the properties of the adhesive product are greatly improved, and the problem that part of the adhesive product has good effects and part of the adhesive product has poor effects during use is solved.

Description

technical field [0001] The invention relates to the technical field of glue production and preparation, in particular to an adhesive used for packaging and a preparation method thereof. Background technique [0002] Adhesive bonding (gluing, bonding, cementing, gluing) refers to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesives, which has the characteristics of continuous stress distribution, light weight, or sealing, and low temperature in most processes. . Gluing is especially suitable for the connection of different materials, different thicknesses, ultra-thin specifications and complex components. Glue is developing the fastest in modern times and has a wide range of application industries. There are many classification methods of adhesives, which can be divided into thermosetting type, hot melt type, room temperature curing type, pressure sensitive type, etc. according to the application method; according to the applicati...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J103/02C09J11/04
CPCC09J11/04C09J103/02C09J133/08C08L3/02C08K13/04C08K7/12C08L33/08
Inventor 田洪明田洪江杜志良
Owner 东莞市奥嘉特高分子材料有限公司
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