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UV-polymerizable POSS modified acrylate pressure-sensitive adhesive and a preparation method thereof

An acrylate and pressure-sensitive adhesive technology, applied in the field of pressure-sensitive adhesives, can solve the problems of precipitation, difficult operation, phase separation, etc., and achieve the effects of improving peel strength and tensile strength, improving thermal stability, and improving peel strength.

Active Publication Date: 2019-06-11
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent can overcome some of the technical problems mentioned above, but still has the following disadvantages: 1. The technical route of the patented process is very cumbersome and complicated, the operation is difficult, and the time and labor costs are high; 2. The pressure-sensitive adhesive prepared by the patent The comprehensive performance of the inorganic particles largely depends on the dispersion characteristics of the inorganic particles. The inorganic particles used must first be treated with a silane coupling agent of a specific structure, otherwise they are easily precipitated from the system, or even agglomerated to cause serious phase separation. For pressure sensitive The peel strength and tensile strength of the glue caused serious damage; 3. The pressure-sensitive adhesive prepared by this patent has a low service temperature, and the heat-resistant temperature is generally lower than 300°C, which cannot meet the use requirements of higher temperatures

Method used

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  • UV-polymerizable POSS modified acrylate pressure-sensitive adhesive and a preparation method thereof
  • UV-polymerizable POSS modified acrylate pressure-sensitive adhesive and a preparation method thereof
  • UV-polymerizable POSS modified acrylate pressure-sensitive adhesive and a preparation method thereof

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preparation example Construction

[0043] The present invention also provides a kind of preparation method of UV polymerization type POSS modified acrylate pressure-sensitive adhesive, it comprises the following steps:

[0044] 1) Add acrylate copolymer, viscosity regulator, POSS, interface accelerator, molecular weight regulator and photoinitiator into the reaction kettle, keep stirring and swelling at room temperature in the dark to form a uniform UV polymerized acrylate pressure-sensitive adhesive composition ;

[0045] 2) Apply the composition obtained in step 1) evenly on the release PET film, and irradiate it under ultraviolet light for 1-2 minutes to obtain the UV polymerized POSS modified acrylate pressure-sensitive adhesive.

Embodiment 1

[0047] A kind of preparation method of UV polymerization type POSS modified acrylate pressure-sensitive adhesive, it comprises the following steps:

[0048] 1) Take each component by the following parts by weight:

[0049] Acrylate copolymer: 15 parts;

[0050] Viscosity regulator: 78.4 parts;

[0051] Molecular weight regulator: 0.1 part;

[0052] Interface enhancer: 5 parts;

[0053] POSS: 1 copy;

[0054] Photoinitiator: 0.5 part;

[0055] Described linear acrylate copolymer is following structure:

[0056]

[0057] Wherein, the viscosity regulator is isooctyl acrylate, the molecular weight regulator is isobornyl acrylate, the interfacial accelerator is No. 1 color hydrogenated carbon five resin, and the photoinitiator is 2,4,6-trimethylbenzoyl-di Phenylphosphine oxide.

[0058] 2) Add acrylate copolymer, viscosity regulator, POSS, interface promoter, molecular weight regulator and photoinitiator into the reaction kettle, and keep stirring and swelling at room tem...

Embodiment 2

[0061] A kind of preparation method of UV polymerization type POSS modified acrylate pressure-sensitive adhesive, it comprises the following steps:

[0062] 1) Take each component by the following parts by weight:

[0063] Acrylate copolymer: 20 parts;

[0064] Viscosity regulator: 67.28 parts;

[0065] Molecular weight regulator: 0.12 parts;

[0066] Interface enhancer: 8 parts;

[0067] POSS: 4 copies;

[0068] Photoinitiator: 0.6 part;

[0069] Described linear acrylate copolymer structure is as follows:

[0070]

[0071] Wherein, the viscosity regulator is a mixture of styrene and vinyl acetate in a mass ratio of 1:1, the molecular weight regulator is a mixture of isobornyl acrylate and butyl acrylate in a mass ratio of 1:1, and the interface accelerator is No. 2 Color hydrogenated carbon five resin, photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide.

[0072] 2) Add acrylate copolymer, viscosity regulator, POSS, interface promoter, molecular weight...

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Abstract

The invention relates to a UV-polymerizable POSS modified acrylate pressure-sensitive adhesive which comprises the following components: an acrylate copolymer, a viscosity modifier, a molecular weightmodifier, an interface promoter, POSS (polyhedral oligomeric silsesquioxane) and a photoinitiator. According to the invention, a UV-polymerization technique is employed to produce a POSS modified acrylate pressure-sensitive adhesive which has extremely high interfacial stress dispersion capability and can well resist the damage of thermal expansion and contraction to a material. Meanwhile, the UV-polymerization technique which has the advantages of zero solvent, no pollution, few reaction steps and high reaction efficiency is employed to produce a UV-polymerizable POSS modified acrylate pressure-sensitive adhesive. The acrylate pressure-sensitive adhesive provided by the invention is excellent in adhesion, peel strength, tensile strength and high temperature resistance.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesives, in particular to a UV polymerized POSS-modified acrylate pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Acrylic pressure-sensitive adhesives are widely used because of their excellent bonding performance and good interfacial stress dispersion ability to various substrates. According to their polymerization methods, acrylic pressure-sensitive adhesives can be divided into solvent-based pressure-sensitive adhesives and emulsion-type Pressure-sensitive adhesives, hot-melt pressure-sensitive adhesives, water-soluble pressure-sensitive adhesives and UV-type pressure-sensitive adhesives. [0003] With the gradual development of society, the requirements for environmental protection are getting higher and higher. Due to the presence of organic solvents in solvent-type pressure-sensitive adhesives, there are serious poisons to the human body and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J7/10C09J133/14C09J11/06C09J11/08
Inventor 赵辉刘杨黄崇杏王双飞黄丽婕赵思琪
Owner GUANGXI UNIV
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