Pressure-sensitive adhesive composition and preparation method thereof

A technology of pressure-sensitive adhesives and compositions, applied in the direction of adhesive additives, adhesive types, ester copolymer adhesives, etc., can solve the problems of pressure-sensitive adhesives such as reduced viscosity when exposed to moisture

Pending Publication Date: 2022-04-12
安徽富印新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a pressure-sensitive adhesive composition that absorbs part of the moisture and does not...

Method used

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  • Pressure-sensitive adhesive composition and preparation method thereof
  • Pressure-sensitive adhesive composition and preparation method thereof
  • Pressure-sensitive adhesive composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A pressure-sensitive adhesive composition, which takes the following raw materials:

[0022] Acrylate 600g;

[0023] Acrylic acid 200g;

[0024] Ethyl salicylate 90g;

[0025] Acetate starch 50g;

[0026] Sodium alginate 30g;

[0027] Anhydrous isopropanol 220g;

[0028] Aziridine 20g;

[0029] Polyethylene glycol 60g.

[0030] Preparation of pressure-sensitive adhesive composition: 1) Add anhydrous isopropanol into the reaction kettle, heat to 68-80°C, add acrylate and acrylic acid, mix well to obtain a mixed solution; 2) use the mixed solution in step 1) Add aziridine and polyethylene glycol to the mixture, and continue to heat to 90-102°C for cross-linking reaction; 3) Continue to add ethyl salicylate, acetate starch and sodium alginate, stir evenly, after the isopropanol volatilizes, The pressure-sensitive adhesive composition of Example 1 was obtained.

Embodiment 2

[0032] A pressure-sensitive adhesive composition, which takes the following raw materials:

[0033] Acrylate 620g;

[0034] Acrylic acid 300g;

[0035] Ethyl salicylate 60g;

[0036] Acetate starch 80g;

[0037] Sodium alginate 60g;

[0038] Anhydrous isopropanol 250g;

[0039] Aziridine 50g;

[0040] Polyethylene glycol 100g.

[0041] Preparation of pressure-sensitive adhesive composition: 1) Add anhydrous isopropanol into the reaction kettle, heat to 68-80°C, add acrylate and acrylic acid, mix well to obtain a mixed solution; 2) use the mixed solution in step 1) Add aziridine and polyethylene glycol to the mixture, and continue to heat to 90-102°C for cross-linking reaction; 3) Continue to add ethyl salicylate, acetate starch and sodium alginate, stir evenly, after the isopropanol volatilizes, The pressure-sensitive adhesive composition of Example 2 was obtained.

Embodiment 3

[0043] A pressure-sensitive adhesive composition, which takes the following raw materials:

[0044] Acrylate 650g;

[0045] Acrylic acid 280g;

[0046] Ethyl salicylate 80g;

[0047] Acetate starch 60g;

[0048] Sodium alginate 50g;

[0049] Anhydrous isopropanol 270g;

[0050] Aziridine 40g;

[0051] Polyethylene glycol 80g.

[0052] Preparation of pressure-sensitive adhesive composition: 1) Add anhydrous isopropanol into the reaction kettle, heat to 68-80°C, add acrylate and acrylic acid, mix well to obtain a mixed solution; 2) use the mixed solution in step 1) Add aziridine and polyethylene glycol to the mixture, and continue to heat to 90-102°C for cross-linking reaction; 3) Continue to add ethyl salicylate, acetate starch and sodium alginate, stir evenly, after the isopropanol volatilizes, The pressure-sensitive adhesive composition of Example 3 was obtained.

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Abstract

The invention provides a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition is prepared from the following raw materials in parts by weight: 60 to 80 parts of acrylate, 20 to 30 parts of acrylic acid, 6 to 9 parts of ethyl salicylate, 5 to 8 parts of starch acetate, 3 to 6 parts of sodium alginate, 22 to 35 parts of isopropanol, 2 to 5 parts of aziridine and 6 to 10 parts of polyethylene glycol. The pressure-sensitive adhesive composition does not use other organic solvents except the isopropanol, and the prepared pressure-sensitive adhesive has certain moisture resistance and does not fall off after being attached to the skin for 3 hours.

Description

technical field [0001] The invention belongs to the technical field of adhesives, in particular to a pressure-sensitive adhesive composition and a preparation method thereof. Background technique [0002] pressure sensitive adhesive [0003] The full name of pressure-sensitive adhesive is pressure-sensitive adhesive, commonly known as self-adhesive. It is the product with the largest amount and the widest application range among adhesives, and its products are almost found in various fields such as packaging, automobiles, transportation, communications, electrical appliances, building materials, machinery, aviation, light industry, and hygiene. The broadest definition of pressure-sensitive adhesives refers to the application of finger-touch pressure to make the adhesive immediately bond to the smooth surface of any adherend. At the same time, when it is removed from the surface of the adherend, the adhesive will not pollute the surface of the adherend. This type of adhesiv...

Claims

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Application Information

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IPC IPC(8): C09J133/04C09J11/08C09J11/06
Inventor 徐云华
Owner 安徽富印新材料股份有限公司
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