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High temperature resistant non-yellowing high stripping strength pressure-sensitive adhesive and preparation method thereof

A high-peeling, high-temperature-resistant technology, applied in adhesive types, ester copolymer adhesives, etc., can solve the problems of poor adhesion and yellow appearance of pressure-sensitive adhesives, and achieve fast curing, non-yellowing peeling force, Good coating effect

Inactive Publication Date: 2014-07-23
GUANGDONG TAMAY NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the special surface properties of polyethylene terephthalate film, general pressure-sensitive adhesives have poor adhesion and yellow appearance on polyethylene terephthalate film, and will turn yellow after a period of storage , Moreover, since the polyethylene terephthalate protective film needs to be torn off after completing the protective effect, no pressure-sensitive adhesive is allowed to remain on the surface of the protected substrate, so the pressure-sensitive adhesive used is initially Adhesion, peel strength, cohesion, non-yellowing and coating properties must achieve a good balance in order to meet the application requirements

Method used

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  • High temperature resistant non-yellowing high stripping strength pressure-sensitive adhesive and preparation method thereof
  • High temperature resistant non-yellowing high stripping strength pressure-sensitive adhesive and preparation method thereof
  • High temperature resistant non-yellowing high stripping strength pressure-sensitive adhesive and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1. Preparation of high temperature-resistant non-yellowing high-peeling force pressure-sensitive adhesive

[0043] 1. Preparation of Acrylate Prepolymer

[0044]40g butyl acrylate, 100g isooctyl acrylate, 4g ethyl acrylate, 15g methyl methacrylate, 6g acrylic acid, 6g hydroxyethyl acrylate, 1.0g azobisisobutyronitrile, 1.5g n-dodecyl sulfide Alcohol and 10g of acetone are mixed evenly and set aside; add 45g of the above mixture and 100g of ethyl acetate into a nitrogen-protected reactor, and when the temperature rises to 75°C, after polymerization for 50 minutes, slowly add the remaining amount of The above mixture was dropped in about 3 hours; after the dropwise addition, reflux for 60 minutes; add a mixture of 0.5g of azobisisobutyronitrile and 4g of acetone under reflux, continue to reflux for 3 hours, stop the reaction, cool After that, the acrylate prepolymer is obtained.

[0045] 2. Preparation of pressure-sensitive adhesive solution

[0046] Stir 40g of acryla...

Embodiment 2

[0066] 1. Preparation of high temperature-resistant non-yellowing high-peeling force pressure-sensitive adhesive

[0067] 1. Preparation of Acrylate Prepolymer

[0068] 50g isobutyl methacrylate, 90.5g isooctyl methacrylate, 18g methyl acrylate, 9g methacrylic acid, 9g hydroxyethyl methacrylate, 1.65g tert-dodecyl mercaptan, 1.0g azo Mix diisobutyronitrile and 10g methyl ethyl ketone evenly; add 47g of the above mixture and 100g ethyl acetate into a nitrogen-protected reactor, and when the temperature rises to 75°C, after 50 minutes of polymerization reaction, slowly dropwise add The remaining amount of the above mixture is dropped in about 3 hours; after the dropwise addition, reflux for 60 minutes; add a mixture of 0.8g of azobisisobutyronitrile and 10g of acetone under reflux, and continue to reflux for 3 hours before stopping After reaction, the acrylate prepolymer is obtained after cooling.

[0069] 2. Preparation of pressure-sensitive adhesive solution

[0070] Stir 4...

Embodiment 3

[0086] 1. Preparation of high temperature-resistant non-yellowing high-peeling force pressure-sensitive adhesive

[0087] 1. Preparation of Acrylate Prepolymer

[0088] 85g isooctyl acrylate, 27g isobutyl methacrylate, 10g ethyl acrylate, 21g styrene, 10g acrylic acid, 2g glycidyl methacrylate, 12g hydroxypropyl methacrylate, 1.8g n-dodecyl Mercaptan, 2g of azobisisobutyronitrile and 20g of ethanol were mixed uniformly; 48g of the above mixture and 100g of ethyl acetate were added to a nitrogen-protected reactor, and when the temperature rose to 75°C, after 50 minutes of polymerization, the Slowly add the remaining amount of the above-mentioned mixture dropwise in the state, and drop it in about 3 hours; after the dropwise addition, reflux for 60 minutes; add a mixture of 0.1g of azobisisobutyronitrile and 9g of ethanol in the state of reflux, and continue to reflux The reaction was stopped after 3 hours of reaction, and the acrylate prepolymer was obtained after cooling.

...

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Abstract

The invention discloses high temperature resistant non-yellowing high stripping strength pressure-sensitive adhesive and a preparation method thereof. The high temperature resistant non-yellowing high stripping strength pressure-sensitive adhesive comprises the following components in percentage by weight: 40-60% of acrylate prepolymer, 0.5-1% of a curing agent and 39-59% of a solvent. The high temperature resistant non-yellowing high stripping strength pressure-sensitive adhesive disclosed by the invention has good adhesive force on a polyparaphenylene xylene glycol ester thin film and non-yellowing appearance and is capable of realizing good balance among primary viscous force, striping strength and cohesive force.

Description

technical field [0001] The invention relates to a high-temperature-resistant non-yellowing high-peeling force pressure-sensitive adhesive for electronic protective films and a preparation method thereof, more specifically, the present invention relates to a high-temperature-resistant non-yellowing pressure-sensitive adhesive for polyethylene terephthalate protective films. Yellowing high release force pressure sensitive adhesive and preparation method thereof. Background technique [0002] Protective film is a surface protection and packaging material used to protect the surface of commodities. It is pasted on various metals, aluminum-plastic panels, plastic panels, coated steel, stainless steel panels, aluminum profiles, stone, glass, instruments, and furniture. The surface of commodities such as electronics and electrical appliances, so that it can protect the surface during manufacturing, transportation, secondary processing, storage and use, avoid contamination, scratche...

Claims

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Application Information

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IPC IPC(8): C09J133/08C08F220/18C08F220/06C08F220/28C08F212/08
Inventor 江家钧
Owner GUANGDONG TAMAY NEW MATERIALS
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