Pressure sensitive adhesive with high stripping force and preparation method thereof

A pressure-sensitive adhesive, high-peeling technology, applied in the direction of adhesives, adhesive types, rosin adhesives, etc., can solve the problem of poor plasticizer resistance and temperature resistance of pressure-sensitive adhesives, peeling force and adhesion of pressure-sensitive adhesives Insufficient height, insufficient bonding strength, etc., to achieve good plasticizer resistance, high 180° peeling force, and low toxicity

Active Publication Date: 2019-07-23
浙江铂淳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

[0005] 1. The peeling force and adhesion of the pressure-sensitive adhesive are not high enough, and the bonding firmness is not enough;
[0006] 2. The pressure-sensitive adhesive has poor plasticizer resistance and

Method used

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  • Pressure sensitive adhesive with high stripping force and preparation method thereof
  • Pressure sensitive adhesive with high stripping force and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A pressure-sensitive adhesive with high peeling force, made of the following raw materials in parts by weight: 45-55 parts of isooctyl acrylate, 4-9 parts of acrylamide, 40-50 parts of butyl acrylate, 7 parts by weight of hydroxypropyl acrylate ~12 parts, 3~7 parts of methyl acrylate, 70~90 parts of ethyl acetate and butanone with a mass ratio of 1:1, 1.3~2.2 parts of azobisisobutyronitrile, 0.6~1 part of dodecanethiol, 3-5 parts of toluene diisocyanate.

[0037] Preferably, first use isooctyl acrylate as a soft monomer, acrylamide as a functional hard monomer, azobisisobutyronitrile as an initiator, ethyl acetate and methyl ethyl ketone with a mass ratio of 1:1 as a solvent, ten Dithiol is used as a molecular weight regulator, prepolymerized to obtain an acrylamide prepolymer; butyl acrylate is used as a soft monomer, hydroxypropyl acrylate is used as a functional hard monomer, and azobisisobutyronitrile is used as an initiator. Ethyl acetate and methyl ethyl ketone at ...

Embodiment 2

[0053] A pressure-sensitive adhesive with high peeling force, made of raw materials including the following parts by weight: 45 parts of isooctyl acrylate, 4 parts of acrylamide, 40 parts of butyl acrylate, 7 parts of hydroxypropyl acrylate, 3 parts of methyl acrylate 70 parts, 70 parts of ethyl acetate and butanone with a mass ratio of 1:1, 1.3 parts of azobisisobutyronitrile, 0.6 parts of dodecanethiol, and 3 parts of toluene diisocyanate.

[0054] In this example, isooctyl acrylate is used as a soft monomer, acrylamide is used as a functional hard monomer, azobisisobutyronitrile is used as an initiator, and ethyl acetate and butanone with a mass ratio of 1:1 are Solvent, dodecyl mercaptan as molecular weight regulator, pre-polymerized to obtain acrylamide prepolymer; butyl acrylate as soft monomer, hydroxypropyl acrylate as functional hard monomer, azobisisobutyronitrile as initiator agent, ethyl acetate and butanone with a mass ratio of 1:1 are solvents, and dodecanethiol ...

Embodiment 3

[0070] A pressure-sensitive adhesive with high peeling force, made of the following raw materials by weight: 55 parts of isooctyl acrylate, 9 parts of acrylamide, 50 parts of butyl acrylate, 12 parts of hydroxypropyl acrylate, 7 parts of methyl acrylate 90 parts, 90 parts of ethyl acetate and butanone with a mass ratio of 1:1, 2.2 parts of azobisisobutyronitrile, 1 part of dodecanethiol, and 5 parts of toluene diisocyanate.

[0071] In this example, isooctyl acrylate is used as a soft monomer, acrylamide is used as a functional hard monomer, azobisisobutyronitrile is used as an initiator, and ethyl acetate and butanone with a mass ratio of 1:1 are Solvent, dodecyl mercaptan as molecular weight regulator, pre-polymerized to obtain acrylamide prepolymer; butyl acrylate as soft monomer, hydroxypropyl acrylate as functional hard monomer, azobisisobutyronitrile as initiator agent, ethyl acetate and butanone with a mass ratio of 1:1 are solvents, and dodecanethiol is a molecular wei...

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Abstract

The invention discloses a pressure sensitive adhesive with the high stripping force. The pressure sensitive adhesive is prepared from the following raw materials, in parts by weight: 45-55 parts of 2-ethylhexyl acrylate, 4-9 parts of acrylamide, 40-50 parts of butyl acrylate, 7-12 parts of hydroxypropyl acrylate, 3-7 parts of methyl acrylate, 70-90 parts of ethyl acetate and butanone with the massratio being 1 to 1, 1.3-2.2 parts of azodiisobutyronitrile, 0.6-1 part of 1-dodecanethiol and 3-5 parts of tuluene diisocynate. The pressure sensitive adhesive with the high stripping force has the good initial adhesion and persistent adhesion, the 180-degree stripping force is high and can be held at the temperature of 90 DEG C, and the pressure sensitive adhesive can adhere firmly, and has thegood anti-plasticizer property and temperature resistance. No benzene and methylbenzene serves as solvents in the synthesis process of the pressure sensitive adhesive, and the pressure sensitive adhesion is low in toxicity, environmentally friendly, and wide in application range.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a pressure-sensitive adhesive with high peeling force and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesives, as the name implies, are pressure-sensitive adhesives. It is a type of adhesive that can be firmly bonded to the adherend without resorting to solvents, heat or other means, and only needs to apply light finger pressure. The characteristics of pressure-sensitive adhesives are that they are easy to stick, not difficult to remove, and not damaged when peeled off, and the adhesive layer will not dry up in a long period of time, so pressure-sensitive adhesives are also called self-adhesives. It is precisely because of the above-mentioned characteristics of pressure-sensitive adhesives that pressure-sensitive adhesive products have a very wide range of uses. [0003] Acrylic pressure-sensitive adhesive is currently the most widely used ...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J193/04C08F220/18C08F220/56C08F220/20C08F220/14
CPCC08F220/18C08F220/1808C08L2201/08C09J133/066C08L93/04C08F220/1804C08F220/56C08F220/20C08F220/14
Inventor 孙孝辉
Owner 浙江铂淳新材料股份有限公司
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