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Foam pressure-sensitive adhesive product, and preparation method thereof

A pressure-sensitive adhesive and foam technology, which is applied in the field of pressure-sensitive adhesives, can solve the problems of poor adhesion, non-removable peeling, and poor heat-and-moisture resistance of foam pressure-sensitive adhesives, and achieves improved labor efficiency and strong adhesion. The effect of improving the bonding performance and improving the bonding performance

Active Publication Date: 2019-02-15
WUXI HAITE NEW MATERIAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of foam pressure-sensitive adhesives such as poor bonding performance, poor heat resistance, poor heat and humidity resistance, and non-removable peeling, the invention provides a foam pressure-sensitive adhesive product and a preparation method thereof

Method used

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  • Foam pressure-sensitive adhesive product, and preparation method thereof
  • Foam pressure-sensitive adhesive product, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Weigh 3g of methyl acrylate, 1g of ethyl methacrylate, 25g of butyl acrylate, 10g of decyl methacrylate, 0.5g of acrylic acid, 0.5g of hydroxyethyl acrylate, and 60g of ethyl acetate, mix well, and add In the kettle, heat to 75-76°C, and pass nitrogen throughout;

[0028] (2) Add 0.1g of dibenzoyl peroxide into the reaction kettle, control the temperature at 75-76°C, and react for 1.5h;

[0029] (3) After raising the temperature to 85°C, keep it warm for 1.5 hours, then cool it down to room temperature naturally, and discharge.

[0030] (4) Take by weighing the part of the glue that is discharged in the step (3), add triglycidyl isocyanurate, toluene diisocyanate, polyester to it, and the addition consumption is respectively 0.5% of the total weight of the glue that has been weighed , 0.5%, 1%, stir well, apply the obtained glue on the release film, first cure at room temperature for 5 minutes, then cure at 80°C for 5 minutes, and finally cure at 120°C for 5 minute...

Embodiment 2

[0032] (1) Weigh 6g of methyl acrylate, 2g of phenyl methacrylate, 20g of isooctyl acrylate, 10g of decyl methacrylate, 1g of acrylic acid, 1g of hydroxypropyl acrylate, 50g of ethyl acetate, and 10g of toluene and mix well, Add it to the reaction kettle, heat it to 75-76°C, and pass nitrogen throughout;

[0033] (2) Add 0.12g of dibenzoyl peroxide into the reaction kettle, control the temperature at 75-76°C, and react for 1.5h;

[0034] (3) After raising the temperature to 85°C, keep it warm for 1.5 hours, then cool it down to room temperature naturally, and discharge.

[0035] (4) Take by weighing the part of the glue solution discharged in the step (3), add hexamethylene diisocyanate, m-xylylenediamine type epoxy resin, terpene therein, and the addition amount is respectively the glue solution amount taken by weighing 0.1%, 0.5%, 2% of the total weight, fully stirred, the obtained glue is coated on the release film, first cured at room temperature for 5 minutes, then cured...

Embodiment 3

[0037] (1) Weigh 8g of methyl acrylate, 2g of isobutyl methacrylate, 15g of isooctyl acrylate, 10g of decyl methacrylate, 3g of acrylic acid, 2g of 4-hydroxybutyl acrylate, and 60g of toluene and mix well, add In the reaction kettle, heat to 75-76°C and pass nitrogen throughout;

[0038] (2) Add 0.2g of dibenzoyl peroxide into the reaction kettle, control the temperature at 75-76°C, and react for 1.5h;

[0039] (3) After raising the temperature to 85°C, keep it warm for 1.5 hours, then cool it down to room temperature naturally, and discharge.

[0040] (4) Take by weighing the part glue solution of discharging in step (3), add triglycidyl isocyanurate, terpene, terpene phenolic resin wherein, the addition consumption is respectively 0.1% of the glue solution amount gross weight that takes by weighing , 2%, 3%, stir well, apply the obtained glue on the release film, first cure at room temperature for 5 minutes, then cure at 80°C for 5 minutes, and finally cure at 120°C for 5 m...

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Abstract

The invention discloses a foam pressure-sensitive adhesive product, and a preparation method thereof. The foam pressure-sensitive adhesive product comprises a component A and a component B, wherein according to weight percentages, raw materials of the component A comprise 4-10% of a hard monomer or hard monomers, 25-35% of a soft monomer or soft monomers, 1-5% of a functional monomer or functionalmonomers, 60% of a solvent or solvents, and an initiator which accounts for 0.1-0.5% of the total weight of the hard monomer(s), the soft monomer(s) and the functional monomer(s); and raw materials of the component B comprise a tackifying resin or tackifying resins which account for 1-5% of the total weight of the component A, and a curing agent or curing agents which account for 0.1-1% of the total weight of the component A. The foam pressure-sensitive adhesive product disclosed by the invention has the advantages that a sufficient adhesive strength can be provided for fixation of an adheredobject, and high heat resistance and high damp heat resistance are achieved; and under the premise of a high cohesion strength, the adhesive achieves a larger initial adhesive force and a lower glass-transition temperature, so that the adhesive can be removably stripped off and is highly infiltrative.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesives, in particular to a foam pressure-sensitive adhesive product and a preparation method thereof. Background technique [0002] The full name of pressure-sensitive adhesive is pressure-sensitive adhesive, commonly known as self-adhesive, its bonding process is very convenient, as long as you apply a little pressure or press it lightly with your fingers, it can be bonded, and it does not need to be used in this process. The action of great pressure, heat or solvents. Therefore, the pressure-sensitive adhesive is called a self-adhesive substance, which is mainly bonded to the surface of the adherend by van der Waals force, and there is no physical and chemical change during the bonding process. Pressure-sensitive adhesive has four main characteristics: ①The bonding process is easy to carry out; ②It is relatively easy to peel off; ③When the pressure-sensitive adhesive is peeled off from the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J7/24C09J133/10C09J133/08C09J11/06C09J11/08C08F220/18C08F220/14C08F220/06C08F220/20
CPCC08F220/18C09J11/06C09J11/08C09J133/14C09J7/243C09J7/385C08F220/1808C08F220/1811C08L67/00C08K5/29C08K5/34924C08L63/00C08K5/01C08L45/00C08F220/14C08F220/1806C08F220/06C08F220/20C08F220/1804
Inventor 陈国荣邹婷婷丁荣炎吴秋心白永平李晶波殷晓芬
Owner WUXI HAITE NEW MATERIAL RES INST
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