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OCA optical cement for bonding frame of cell phone

A mobile phone frame and optical glue technology, which is applied in the field of OCA optical glue, can solve the problems of ideal bonding performance, poor light transmission performance, and high price, and achieve low cost, low holding force, and good light transmission performance.

Inactive Publication Date: 2017-07-04
广东鼎立森新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now more and more mobile phone screens use OLED screens, and the matching hot-bending glass panel frame glue is still in the development stage in China. At present, merchants in need mainly use 3M's products, which have ideal bonding performance but poor light transmission performance. good but expensive

Method used

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  • OCA optical cement for bonding frame of cell phone
  • OCA optical cement for bonding frame of cell phone
  • OCA optical cement for bonding frame of cell phone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014]

[0015] Put the above components into the stirring tank according to the mass percentage, mix and stir evenly, let it stand for defoaming naturally to make glue, then apply the glue on both sides of the PET release film, and then attach the silicon release film on both sides Curing by UV;

[0016] Wherein, the acrylic acid prepolymer is made by reacting the following substances in mass percent:

[0017]

[0018] After the weighing is completed, add n-propyl acrylate, methacrylic acid, and hydroxypropyl methacrylate into the reaction kettle in sequence, and add butyl acrylate dissolved in benzoyl peroxide dropwise to the reaction kettle while raising the temperature of the materials in the reaction kettle. In the kettle, the temperature of the reaction kettle was raised to 80-90°C and kept at a temperature of 10 hours, then cooled to normal temperature.

Embodiment 2

[0020]

[0021] Put the above components into the stirring tank according to the mass percentage, mix and stir evenly, let it stand for defoaming naturally to make glue, then apply the glue on both sides of the PET release film, and then attach the silicon release film on both sides Curing by UV;

[0022] Wherein, the acrylic acid prepolymer is made by reacting the following substances in mass percent:

[0023]

[0024] After the weighing is completed, add n-propyl acrylate, methacrylic acid, and hydroxypropyl methacrylate into the reaction kettle in sequence, and add butyl acrylate dissolved in benzoyl peroxide dropwise to the reaction kettle while raising the temperature of the materials in the reaction kettle. In the kettle, the temperature of the reaction kettle was raised to 80-90°C and kept at a temperature of 10 hours, then cooled to normal temperature.

Embodiment 3

[0026]

[0027] Put the above components into the stirring tank according to the mass percentage, mix and stir evenly, let it stand for defoaming naturally to make glue, then apply the glue on both sides of the PET release film, and then attach the silicon release film on both sides Curing by UV;

[0028] Wherein, the acrylic acid prepolymer is made by reacting the following substances in mass percent:

[0029]

[0030]

[0031] After the weighing is completed, add n-propyl acrylate, methacrylic acid, and hydroxypropyl methacrylate into the reaction kettle in sequence, and add butyl acrylate dissolved in benzoyl peroxide dropwise to the reaction kettle while raising the temperature of the materials in the reaction kettle. In the kettle, the temperature of the reaction kettle was raised to 80-90°C and kept at a temperature of 10 hours, then cooled to normal temperature.

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Abstract

The invention provides an OCA optical cement for bonding the frame of a cell phone. The optical cement is prepared from the following substances in percentage by weight: 40 to 80% of acrylic acid prepolymer, 5 to 25% of glycidyl methacrylate, 5 to 25% of acetoacetoxy ethyl methacrylate, 5 to 15% of molecular weight modifier, and 0.1 to 5% of initiator; wherein the molecular weight modifier is one of n-dodecyl mercaptan, tert-dodecyl mercaptan, and isooctyl 3-mercaptopropionate; and the acrylic acid prepolymer is prepared from the following substances in percentage by weight after reactions: 30 to 60% of n-propyl acrylate, 30 to 50% of butyl acrylate, 5 to 15% of methacrylic acid, 1 to 8% of hydroxypropyl methacrylate, and 0.1 to 2% of benzoyl peroxide. The OCA optical cement has the advantages of low initial bonding, high permanent adhesion, good light-admitting quality, and low cost.

Description

technical field [0001] The invention relates to an OCA optical adhesive, in particular to an OCA optical adhesive for bonding mobile phone frames. Background technique [0002] Now more and more mobile phone screens use OLED screens, and the matching hot-bending glass panel frame glue is still in the development stage in China. At present, merchants in need mainly use 3M's products, which have ideal bonding performance but poor light transmission performance. Good, and expensive. Contents of the invention [0003] In order to solve the above problems, the present invention provides an OCA optical glue for bonding the frame of a mobile phone, which has good light transmission performance and low cost. [0004] The technical solution provided by the present invention is: an OCA optical glue for bonding the frame of a mobile phone, which is made of the following substances in mass percentage after reaction: [0005] [0006] The molecular weight regulator is one of n-dod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J7/00
CPCC09J4/06C09J7/00C09J2203/318C09J2433/00
Inventor 潘斌俊蔡秀李彪陈德祥文德兴周德宁钟寿增蒙诚乐
Owner 广东鼎立森新材料有限公司
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