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High-permeability and high-temperature-resistant type acrylate pressure-sensitive adhesive and preparation method thereof

A high-temperature-resistant, acrylate technology, applied in pressure-sensitive films/sheets, adhesives, adhesive types, etc., can solve problems such as softening, poor heat resistance, and inability to use normally, achieve high permeability, peel off, etc. Strong force and strong adhesion

Inactive Publication Date: 2017-05-10
HARBIN INST OF TECH WUXI RES INST OF NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first purpose of the present invention is to provide a high-transparency and high-temperature-resistant acrylate pressure-sensitive adhesive to overcome the problem that solvent-type acrylate pressure-sensitive adhesives have poor heat resistance, become soft at high temperatures, and cannot be used normally. glue

Method used

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  • High-permeability and high-temperature-resistant type acrylate pressure-sensitive adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of pressure-sensitive adhesive, comprising the steps of:

[0040] 1) Weigh 3g of vinyl acetate, 54g of butyl acrylate, 1.2g of acrylic acid, 1.2g of hydroxyethyl acrylate, initiator AIBN: 0.18g (accounting for the total weight of vinyl acetate, butyl acrylate, acrylic acid, and hydroxyethyl acrylate) 0.3%), NVP: 0.6g, solvent: ethyl acetate 90g. Mix vinyl acetate, butyl acrylate, acrylic acid, hydroxyethyl acrylate, and NVP to obtain a monomer mixture. Take 20-50% of the above mixture and 30-60% of the total amount of ethyl acetate as the solvent, and pour it into a After heating to 80°C in a four-neck flask with a thermometer and a condenser tube, pour 35-55% of the total amount of the initiator AIBN into the reaction flask, start timing when reflux occurs in the condenser tube, and keep warm for 1 hour.

[0041] 2) After the reaction, 20-30% of the total amount of the remaining monomer mixture, solvent ethyl acetate, and initiator AIBN was evenly...

Embodiment 2

[0046] A preparation method of pressure-sensitive adhesive, comprising the steps of:

[0047] 1) Weigh 3 g of vinyl acetate, 53.1 g of butyl acrylate, 1.2 g of acrylic acid, 1.2 g of hydroxyethyl acrylate, initiator AIBN: 0.18 g, NVP: 1.5 g, solvent: 90 g of ethyl acetate. Mix vinyl acetate, butyl acrylate, acrylic acid, hydroxyethyl acrylate, and NVP to obtain a monomer mixture. Take 20-50% of the above mixture and 30-60% of the total amount of ethyl acetate as the solvent, and pour it into a After heating to 80°C in a four-neck flask with a thermometer and a condenser tube, pour 35-55% of the total amount of the initiator AIBN into the reaction flask, start timing when reflux occurs in the condenser tube, and keep warm for 1 hour.

[0048]2) After the reaction, 20-30% of the total amount of the remaining monomer mixture, solvent ethyl acetate, and initiator AIBN was evenly added dropwise into the reaction system within 1.5-2 hours using a constant liquid funnel, and then kep...

Embodiment 3

[0053] A preparation method of pressure-sensitive adhesive, comprising the steps of:

[0054] 1) Weigh 3g of vinyl acetate, 51.6g of butyl acrylate, 1.2g of acrylic acid, 1.2g of hydroxyethyl acrylate, initiator AIBN: 0.18g, NVP: 3g, solvent: 90g of ethyl acetate. Mix vinyl acetate, butyl acrylate, acrylic acid, hydroxyethyl acrylate, and NVP to obtain a monomer mixture. Take 20-50% of the above mixture and 30-60% of the total amount of ethyl acetate as the solvent, and pour it into a After heating to 80°C in a four-neck flask with a thermometer and a condenser tube, pour 35-55% of the total amount of the initiator AIBN into the reaction flask, start timing when reflux occurs in the condenser tube, and keep warm for 1 hour.

[0055] 2) After the reaction, 20-30% of the total amount of the remaining monomer mixture, solvent ethyl acetate, and initiator AIBN was evenly added dropwise into the reaction system within 1.5-2 hours using a constant liquid funnel, and then kept for 2 ...

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Abstract

The invention discloses a high-permeability and high-temperature-resistant type acrylate pressure-sensitive adhesive. The acrylate pressure-sensitive adhesive is characterized in that the acrylate pressure-sensitive adhesive is prepared from the following raw materials in percentage by weight: 1% to 5% of hard monomers, 28% to 38% of soft monomers, 0.1% to 3% of functional monomers, 0 to 4% of heat-resistant monomers and 60% of a solvent. The pressure-sensitive adhesive has extremely high permeability and extremely high heat resistance, is free of adhesive residue when the pressure-sensitive adhesive is cooled to room temperature after being treated at high temperature, is high in permeability rate, large in adhesive force and large in release force, and is free of adhesive failure in the using process, so that the problem of using at high temperature in each industry at present is well solved; and moreover, a practical solution is also provided for the fields such as electronics technology, medical treatment, military and aerospace.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a high-permeability and high-temperature-resistant solvent-type acrylate pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesive is a kind of adhesive that is sensitive to pressure. It does not need heat, curing agent or other means, and only needs to provide mild pressure to bond with the object to be bonded. From the adhesive tape used for daily necessities and electronic product packaging, to the insulating tape used by electrical appliances and electricians, the use of pressure-sensitive adhesives can be seen everywhere in life. It is precisely because of its own characteristics that pressure-sensitive adhesives are widely used in the market. [0003] Acrylic pressure-sensitive adhesive is currently the most widely used pressure-sensitive adhesive. It is a copolymer of acrylate monomer and other vinyl monomers....

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F218/08C08F220/06C08F220/28C09J133/08C09J7/02
CPCC08F220/18C08F220/1804C09J7/22C09J7/38C09J133/08C09J2433/00C08F218/08C08F220/06C08F220/281
Inventor 白永平张晓勇王宇龙军李卫东席丹殷晓芬
Owner HARBIN INST OF TECH WUXI RES INST OF NEW MATERIALS
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