A kind of acrylic pressure-sensitive adhesive tape and its preparation method and application

An acrylic pressure-sensitive adhesive tape, acrylic pressure-sensitive adhesive technology, applied in the direction of pressure-sensitive film/sheet, adhesive, film/sheet-like adhesive, etc., can solve the problem of initial tack, stickiness, peel strength Balance, pressure-sensitive tape is easy to degumming, residual glue, low transparency and transparency, etc., to achieve good invisible effect, strong cohesion, and overcome the effect of degumming and residual glue

Active Publication Date: 2022-02-11
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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  • A kind of acrylic pressure-sensitive adhesive tape and its preparation method and application
  • A kind of acrylic pressure-sensitive adhesive tape and its preparation method and application

Examples

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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 adhesive supplies, in particular to an acrylic pressure-sensitive adhesive and its preparation method and application. An acrylic pressure-sensitive adhesive tape, the adhesive tape comprising a base material and an acrylic pressure-sensitive adhesive coated on one side of the base material; the other side of the base material is coated with a release coating; the preparation raw materials of the acrylic pressure-sensitive adhesive are as follows: In terms of weight percentage, at least the following components are included: 75-90% of polyacrylic resin, 5-20% of tackifying resin, and 1-10% of curing agent. The pressure-sensitive adhesive of the present invention cooperates with polyacrylic resin of specific molecular weight, specific tackifying resin and curing agent, so that the pressure-sensitive adhesive tape produced has high cohesion, good wettability, excellent water resistance and aging resistance, and good invisible effect; Compared with traditional acrylic pressure-sensitive adhesives, it has better adhesion, yellowing resistance, UV resistance and peel strength, effectively overcomes the problems of degumming and residual glue of existing acrylic pressure-sensitive adhesives, and is especially suitable for photovoltaic cells plate fixed field.

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 Patents(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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