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Acrylic pressure-sensitive adhesive tape as well as preparation method and application thereof

A technology of acrylic pressure-sensitive tape and acrylic pressure-sensitive adhesive, which is applied in the direction of pressure-sensitive film/sheet, adhesive, adhesive type, etc., and can solve the problems of initial tack, stickiness, peel strength balance, pressure sensitivity, etc. The tape is easy to degumming, residual glue, poor temperature resistance and water resistance, etc., to achieve good invisible effect, strong cohesive force and good wettability

Active Publication Date: 2020-12-04
安徽亥博新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the adhesive tapes that have been disclosed can meet the basic requirements of solution corrosion resistance and insulation, they do not solve the problems of initial tack, stickiness, and peel strength balance, and most pressure-sensitive tapes are easy to degumming, Residual glue, poor temperature resistance and water resistance, low transparency and transparency rate, which seriously limit its application range

Method used

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  • Acrylic pressure-sensitive adhesive tape as well as preparation method and application thereof
  • Acrylic pressure-sensitive adhesive tape as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0086] Among the present invention, the preparation method of described polyacrylic acid resin comprises the following steps:

[0087] (1) Add monomer Ⅰ, monomer Ⅱ and monomer Ⅲ into the reactor, stir evenly, add solvent, and heat up to 45-65°C while stirring in an inert gas environment;

[0088] (2) Add initiator, stir and heat up to 70°C-85°C, react until the solid content of the mixed material is 30%-70%, and the viscosity is 1000-50000cps, stop the reaction;

[0089] (3) Cool to below 40°C and discharge for later use.

[0090] The inventor believes that the best reaction temperature is preferably not lower than 80°C, preferably 85°C, and the transparency of the prepared glue solution is the best.

[0091] The viscosity test method is to use the NDJ-8S rotational viscometer produced by Shanghai Pingxuan Scientific Instrument Co., Ltd. to test against the GB / T2794-1995 standard.

[0092] The test method of glue solid content is:

[0093] Step 1: Cut the aluminum foil into...

Embodiment 1

[0118] Embodiment 1 provides a kind of acrylic pressure-sensitive adhesive tape, and described adhesive tape comprises substrate and the acrylic pressure-sensitive adhesive that is coated on one side of substrate; The other side of substrate is coated with release coating; Described substrate is PE Film, thickness is 0.07mm, purchased from Dongqiao Plastic Co., Ltd., Zhongshan City; the thickness of the release coating is 0.2 μm, and the material is a silicone release agent, purchased from Hubei New Sihai Chemical Co., Ltd.; the curing The agent is n-butanol etherified melamine formaldehyde resin, purchased from Shanghai Xinhua Resin Co., Ltd.;

[0119] The raw materials for the preparation of the acrylic pressure-sensitive adhesive include at least the following components in parts by weight: 80% polyacrylic resin, 16% tackifying resin, and 4% curing agent; the tackifying resin is olefin resin, vitrified The transformation temperature is 80±5°C, purchased from Shanghai Danfan...

Embodiment 2

[0130] Embodiment 2 provides a kind of acrylic pressure-sensitive adhesive tape, and described adhesive tape comprises substrate and the acrylic pressure-sensitive adhesive that is coated on one side of substrate; The other side of substrate is coated with release coating; Described substrate is PE Film, thickness is 0.065mm, purchased from Dongqiao Plastic Co., Ltd., Zhongshan City; the thickness of the release coating is 0.01 μm, and the material is a silicone release agent, purchased from Hubei New Universal Chemical Co., Ltd.; the curing The agent is n-butanol etherified melamine formaldehyde resin, purchased from Shanghai Xinhua Resin Co., Ltd.;

[0131] The raw materials for the preparation of the acrylic pressure-sensitive adhesive include at least the following components in parts by weight: 75% polyacrylic resin, 20% tackifying resin, and 5% curing agent; the tackifying resin is olefin resin, vitrified The transformation temperature is 80±5°C, purchased from Shanghai ...

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Abstract

The invention relates to the technical field of bonding articles, and particularly relates to an acrylic pressure-sensitive adhesive as well as a preparation method and application thereof. Accordingto the acrylic pressure-sensitive adhesive tape, the adhesive tape comprises a base material and an acrylic pressure-sensitive adhesive coated on one surface of the base material, and the other surface of the base material is coated with a release coating. The acrylic pressure-sensitive adhesive is prepared from the following raw materials in percentage by weight: at least 75-90% of polyacrylic resin, 5-20% of tackifying resin and 1-10% of a curing agent. According to the pressure-sensitive adhesive disclosed by the invention, the polyacrylic resin with a specific molecular weight, the specific tackifying resin and the curing agent are matched, so that the prepared pressure-sensitive adhesive tape is large in cohesion, good in wettability, excellent in water resistance and aging resistanceand good in invisible effect; and compared with a traditional acrylic pressure-sensitive adhesive, the adhesive has more excellent adhesion, yellowing resistance, ultraviolet resistance and peel strength, effectively overcomes the problems of adhesive failure and adhesive residue of an existing acrylic pressure-sensitive adhesive, and is particularly suitable for the field of photovoltaic cell panel fixation.

Description

technical field [0001] The invention relates to the technical field of adhesive supplies, in particular to an acrylic pressure-sensitive adhesive and its preparation method and application. Background technique [0002] Pressure-sensitive adhesive is a type of adhesive that can be firmly bonded to the adherend without resorting to solvents or heat, and can be firmly bonded to the adherend only by applying mild pressure. It has a wide range of uses, ranging from civilian tapes to military aerospace. Pressure-sensitive adhesives can be divided into five categories: rubber-type, silicone-type, thermoplastic-type, polyurethane-type, and acrylic-type pressure-sensitive adhesives. Acrylic pressure-sensitive adhesive, which is a copolymer synthesized from vinyl and other acrylate monomers, can be divided into emulsion type, radiation-cured type, hot-melt type, acrylic type, etc., and other types of pressure-sensitive adhesives In comparison, the comprehensive performance is more e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J7/24C09J133/08C09J133/10C09J11/08C08F220/18C08F220/06C08F220/32C08F220/24C08F232/08C08F222/14
CPCC09J7/385C09J7/243C09J135/02C09J11/08C08F220/1808C08F220/1802C08L2201/08C09J2203/322C09J2423/046C08L2205/03C08L61/32C08L45/00C08L57/02C08F220/18C08F220/06C08F220/325C08F220/24C08F232/08C08F222/103C08F222/102C08F220/1809C08F220/34
Inventor 许俊赵晶泽刘成峰吴磊隽
Owner 安徽亥博新材料有限公司
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