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Stripping-force-controllable pressure-sensitive adhesive and preparation method thereof

A pressure-sensitive adhesive and peel force technology, applied in the direction of pressure-sensitive films/sheets, adhesives, film/sheet-like adhesives, etc. problems such as the surface properties of the substrate, to achieve the effects of adjustable peeling force, stable glue viscosity, and simple and effective preparation method

Active Publication Date: 2017-05-31
ANHUI MINGXUN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The preparation process of solvent-based pressure-sensitive adhesives mainly has the following problems: First, environmental protection issues. Most solvent-based pressure-sensitive adhesives use benzene and toluene as solvents when they are synthesized, which is highly toxic; second, most pressure-sensitive adhesives have a narrow controllable range of peeling force , can not meet the needs of a variety of special occasions; the third is that some pressure-sensitive adhesives will have residual glue on the surface of the substrate under humid and hot conditions, which will damage the surface properties of the substrate and limit its scope of use

Method used

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  • Stripping-force-controllable pressure-sensitive adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A preparation method of pressure-sensitive adhesive, comprising the steps of:

[0038] 1) Weigh 6g of methyl methacrylate, 25g of butyl acrylate, 5g of isooctyl acrylate, 1g of acrylic acid, 3g of hydroxyethyl methacrylate, initiator AIBN: 0.12g (accounting for methyl methacrylate, butyl acrylate , isooctyl acrylate, acrylic acid, 0.3% of the total weight of hydroxyethyl methacrylate), ethyl acetate 55g and methanol 5g. Mix methyl methacrylate, butyl acrylate, isooctyl acrylate, acrylic acid, and hydroxyethyl methacrylate to obtain a monomer mixture, and mix ethyl acetate and methanol to obtain a mixed solvent. Take 32g of the above-mentioned monomer mixture and 24g of mixed solvent, pour it into a four-necked flask with mechanical stirring, a thermometer, and a condenser tube and heat it to 73°C, then pour 0.036g of the initiator AIBN into the reaction flask, and when the condenser tube produces reflux Then start timing, and keep warm for 0.5h.

[0039] 2) After the ...

Embodiment 2

[0044] A preparation method of pressure-sensitive adhesive, comprising the steps of:

[0045] 1) Weigh 6g of methyl methacrylate, 25g of butyl acrylate, 5g of isooctyl acrylate, 1g of acrylic acid, 3g of hydroxyethyl methacrylate, initiator AIBN: 0.12g (accounting for methyl methacrylate, butyl acrylate , isooctyl acrylate, acrylic acid, 0.3% of the total weight of hydroxyethyl methacrylate), ethyl acetate 55g and methanol 5g. Mix methyl methacrylate, butyl acrylate, isooctyl acrylate, acrylic acid, and hydroxyethyl methacrylate to obtain a monomer mixture, and mix ethyl acetate and methanol to obtain a mixed solvent. Take 32g of the above-mentioned monomer mixture and 24g of mixed solvent, pour it into a four-necked flask with mechanical stirring, a thermometer, and a condenser tube and heat it to 73°C, then pour 0.036g of the initiator AIBN into the reaction flask, and when the condenser tube produces reflux Then start timing, and keep warm for 0.5h.

[0046] 2) After the ...

Embodiment 3

[0051] A preparation method of pressure-sensitive adhesive, comprising the steps of:

[0052]1) Weigh 6g of methyl methacrylate, 25g of butyl acrylate, 5g of isooctyl acrylate, 1g of acrylic acid, 3g of hydroxyethyl methacrylate, initiator AIBN: 0.12g (accounting for methyl methacrylate, butyl acrylate , isooctyl acrylate, acrylic acid, 0.3% of the total weight of hydroxyethyl methacrylate), ethyl acetate 55g and methanol 5g. Mix methyl methacrylate, butyl acrylate, isooctyl acrylate, acrylic acid, and hydroxyethyl methacrylate to obtain a monomer mixture, and mix ethyl acetate and methanol to obtain a mixed solvent. Take 32g of the above-mentioned monomer mixture and 24g of mixed solvent, pour it into a four-necked flask with mechanical stirring, a thermometer, and a condenser tube and heat it to 73°C, then pour 0.036g of the initiator AIBN into the reaction flask, and when the condenser tube produces reflux Then start timing, and keep warm for 0.5h.

[0053] 2) After the r...

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Abstract

The invention discloses a stripping-force-controllable pressure-sensitive adhesive, which is characterized by being prepared from the following raw materials in percentage by weight: 4 to 8 percent of hard monomer, 26 to 34 percent of soft monomer, 2 to 6 percent of functional monomer and 60 percent of solvent. The pressure-sensitive adhesive is controllable in stripping force and wide in adaptive range; the 180-degree stripping force is 5g to 260g per 25mm; further, the stripping force is changed little along with temperature; glue is low in viscosity and further stable; the pressure-sensitive adhesive is good in humidity and heat resistance, has no residual adhesive, has no fogginess, and has favorable environmental resistance performance; a preparation method of the pressure-sensitive adhesive is simple and effective; the pressure-sensitive adhesive is low in cost, and can be widely applied to an electronic product, a building material product, a furniture product and the like.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a pressure-sensitive adhesive with controllable 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 wide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F220/28C09J7/02C09J133/08
CPCC08F220/18C08F220/1804C09J7/22C09J7/38C09J133/08C08L63/00C08F220/14C08F220/1808C08F220/06C08F220/281
Inventor 李卫东邹婷婷白永平席丹殷晓芬
Owner ANHUI MINGXUN NEW MATERIAL TECH
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