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High-temperature-resistant fluorine-containing acrylate pressure-sensitive adhesive capable of being used for adhering fluorine-containing materials

A pressure-sensitive adhesive, acrylate technology, used in adhesives, adhesive types, ester copolymer adhesives, etc. It can improve the wettability, strong adhesion and large peeling force.

Pending Publication Date: 2022-05-13
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

Among them, acrylate adhesives are widely used due to their good weather resistance and simple formula. However, ordinary pressure-sensitive adhesives can hardly bond fluorine-containing materials such as PTFE. The low surface energy of fluorine materials makes it impossible for ordinary glue to spread on the surface
Considering that PTFE usually requires pretreatment and final high-temperature sintering before it can be applied to the surface of the substrate, not only the process is cumbersome, time-consuming and labor-intensive, but also greatly limits its application scenarios

Method used

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  • High-temperature-resistant fluorine-containing acrylate pressure-sensitive adhesive capable of being used for adhering fluorine-containing materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-temperature-resistant fluorine-containing high-temperature-resistant acrylate pressure-sensitive adhesive that can be used for bonding fluorine-containing materials, a preparation method thereof and a preparation method thereof, comprising the following steps:

[0028] 1) Accurately weigh 40 g of n-butyl acrylate, 30 g of isooctyl acrylate, 5 g of methyl methacrylate, 5 g of vinyl acetate, 5 g of ethyl acrylate, 0.6 g of maleimide, and 5 g of hexafluorobutyl acrylate, and trigger Agent AIBN 0.3g, ethyl acetate solvent 100g, and the above substances were mixed uniformly to form a mixture solution. Take 40% of the above mixture solution and add it into a four-neck flask equipped with mechanical stirring, thermometer and condenser tube and heat it to 78°C, wherein the stirring rate is 150r / min, and the reaction system is carried out under the protection of nitrogen. Start timing when the reaction system refluxes, and time the reaction for 1.5 hours.

[0029] 2) Aft...

Embodiment 2

[0034] A high-temperature-resistant fluorine-containing high-temperature-resistant acrylate pressure-sensitive adhesive that can be used for bonding fluorine-containing materials, a preparation method thereof and a preparation method thereof, comprising the following steps:

[0035] 1) Accurately weigh 40g of n-butyl acrylate, 30g of isooctyl acrylate, 5g of methyl methacrylate, 5g of vinyl acetate, 5g of ethyl acrylate, 5g of maleimide, 10g of hexafluorobutyl acrylate, initiator AIBN0.3g, ethyl acetate solvent 100g, and the above-mentioned substances were mixed uniformly to form a mixture solution. Take 40% of the above mixture solution and add it into a four-neck flask equipped with mechanical stirring, thermometer and condenser tube and heat it to 78°C, wherein the stirring rate is 150r / min, and the reaction system is carried out under the protection of nitrogen. Start timing when the reaction system refluxes, and time the reaction for 1.5 hours.

[0036] 2) After the reac...

Embodiment 3

[0041] A high-temperature-resistant fluorine-containing high-temperature-resistant acrylate pressure-sensitive adhesive that can be used for bonding fluorine-containing materials, a preparation method thereof and a preparation method thereof, comprising the following steps:

[0042] 1) Accurately weigh 40g of n-butyl acrylate, 30g of isooctyl acrylate, 5g of methyl methacrylate, 5g of vinyl acetate, 5g of ethyl acrylate, 2.6g of maleimide, and 20g of hexafluorobutyl acrylate, and trigger Agent AIBN 0.3g, ethyl acetate solvent 120g, and the above substances were mixed uniformly to form a mixture solution. Take 40% of the above mixture solution and add it into a four-neck flask equipped with mechanical stirring, thermometer and condenser tube and heat it to 78°C, wherein the stirring rate is 150r / min, and the reaction system is carried out under the protection of nitrogen. Start timing when the reaction system refluxes, and time the reaction for 1.5 hours.

[0043] 2) After the...

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Abstract

The invention discloses a high-temperature-resistant fluorine-containing acrylate pressure-sensitive adhesive capable of being used for adhering fluorine-containing materials. The high-temperature-resistant fluorine-containing acrylate pressure-sensitive adhesive is prepared from the following components in parts by mass: 75 parts of a soft monomer; 10 parts of a hard monomer; 5 to 30 parts of a fluorine-containing acrylate monomer; 0.6 to 2.6 parts of a heat-resistant monomer; 0.345 part of a thermal initiator; and 100 to 130 parts of a solvent. The fluorine-containing acrylate monomer is introduced into an acrylate polymerization system to reduce the surface energy of a polymer so as to improve the wettability of the polymer on the surface of a low-surface-energy base material. The glass transition temperature of the pressure-sensitive adhesive is controlled by adjusting the proportion of soft and hard monomers in the polymer so as to meet the requirements under different use conditions.

Description

technical field [0001] The invention belongs to the field of pressure-sensitive adhesives, in particular to a high-temperature-resistant fluorine-containing acrylate pressure-sensitive adhesive that can be used for bonding fluorine-containing materials. Background technique [0002] Pressure-sensitive adhesive refers to a type of adhesive that is sensitive to pressure and can be bonded to the adherend with a little finger pressure without the use of solvents or other auxiliary means. Among them, acrylate adhesives are widely used due to their good weather resistance and simple formula. However, ordinary pressure-sensitive adhesives can hardly bond fluorine-containing materials such as PTFE. The low surface energy of fluorine materials makes it impossible for ordinary glue to spread on the surface. Considering that PTFE usually requires pretreatment and final high-temperature sintering before it can be applied to the surface of the substrate, the process is not only cumberso...

Claims

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Application Information

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IPC IPC(8): C09J133/08C08F220/18C08F220/14C08F218/08C08F222/40C08F220/24
CPCC09J133/24C08F220/1804C09J2203/33C09J2203/35C09J2301/302C08F220/1808C08F220/14C08F218/08C08F220/1802C08F222/40C08F220/24
Inventor 白永平崔玉涛邓超魏彬校朱肖楠康立晨
Owner HARBIN INST OF TECH WUXI RES INST OF NEW MATERIALS
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