UV curing grid exhaust glue and preparation method thereof

A grid and adhesive layer technology, applied in the field of UV curing grid venting adhesive and its preparation, can solve the problems of poor fit, generation of air bubbles, and poor anti-drop performance of stretch-reducing adhesive

Pending Publication Date: 2022-06-21
SUZHOU SHIHUA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems in the prior art that the stretch-viscosity-reducing adhesive is soft (low storage modulus), high-elasticity and drop-resistance due to the fact that air bubbles are likely to be generated when the stretch-viscosity-reducing adhesive is die-cut and flatly attached and cannot escape, resulting in poor lamination. Jiayi has the defect of battery displacement in the aluminum frame. This invention provides a UV-cured grid exhaust adhesive (with stretching and viscosification function), which improves the energy storage of the adhesive layer to a certain extent through UV radiation cross-linking technology. At the same time, the grid release film makes the surface of the tape grid, and UV curing can shape the grid imprint on the surface, so as to discharge air bubbles and improve the bonding yield. Alkanes modify the tackifying resin, which improves the compatibility and dispersion uniformity of the expansion ball and the adhesive layer, thereby improving the impact resistance, which can prevent the battery from being displaced when it is impacted by an external force in the aluminum frame; at the same time, the peeling force is moderate , high tensile strength and elongation at break, and has excellent re-peeling performance, and the performance in all aspects is relatively balanced, meeting the needs of tape applications in the electronic field

Method used

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  • UV curing grid exhaust glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A preparation method of UV curing grid exhaust glue, comprising the steps of:

[0050] (1) The raw materials of the adhesive layer: styrene block copolymer modified by vinyl grafting, tackifying resin, aging agent, free radical photoinitiator, and expansion ball are dissolved in toluene / heptane with a solid content of 45%. Stir and dissolve in the alkane system, and then let stand to defoam to obtain stretched viscose-reducing glue;

[0051] In terms of parts by mass, the component content of the adhesive layer raw material is: vinyl graft modified styrene-butadiene-styrene block copolymer (U.S. Kraton DX0222, 20% styrene block, 18% diblock content) 50 parts, tackifying resin (39.6 parts Crayville Wingtack Extra, ring and ball softening point temperature 100°C; 5 parts Crayville Wingtack W140, ring and ball softening point temperature 140°C; 2.8 parts of liquid rosin resin (GA-AT) from Arakawa, Japan) 47.4 parts, aging agent (tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphe...

Embodiment 2

[0054] A preparation method of UV curing grid exhaust glue, comprising the steps of:

[0055] (1) The raw materials of the adhesive layer: styrene block copolymer modified by vinyl grafting, tackifying resin, aging agent, free radical photoinitiator, and expansion ball are dissolved in toluene / heptane with a solid content of 45%. Stir and dissolve in the alkane system, and then let stand to defoam to obtain stretched viscose-reducing glue;

[0056] In terms of parts by mass, the component content of the adhesive layer raw material glue is: vinyl graft modified styrene-butadiene-styrene block copolymer (U.S. Kraton DX0222, 20% benzene Ethylene block, 18% diblock content) 54.4 parts, tackifying resin (36.9 parts Crayville Wingtack Extra, ring and ball softening point temperature 100°C; 3.5 parts Crayville Wingtack W140, ring and ball softening point temperature 140°C ; 2.6 parts of liquid rosin resin (GA-AT) of Arakawa, Japan) 43 parts, aging agent (β-(3,5-di-tert-butyl-4-hydro...

Embodiment 3

[0059] A preparation method of UV curing grid exhaust glue, comprising the steps of:

[0060] (1) The raw materials of the adhesive layer: styrene block copolymer modified by vinyl grafting, tackifying resin, aging agent, free radical photoinitiator, and expansion ball are dissolved in toluene / heptane with a solid content of 45%. Stir and dissolve in the alkane system, and then let stand to defoam to obtain stretched viscose-reducing glue;

[0061]In terms of parts by mass, the component content of the adhesive layer raw material is: vinyl graft modified styrene-butadiene-styrene block copolymer (U.S. Kraton DX0222, 20% styrene Block, 18% diblock content) 51 parts, tackifying resin (39 parts of Crayville Wingtack Extra, ring and ball softening point temperature 100°C; 4.6 parts of Crayville Wingtack W140, ring and ball softening point temperature 140°C; 2.8 parts of liquid rosin resin GA-AT of Arakawa, Japan) 46.4 parts, aging agent (butylmalonate mixture) 1.08 parts, photoin...

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Abstract

According to the UV curing grid exhaust adhesive and the preparation method thereof, the adhesive tape has excellent bonding performance, excellent impact resistance and displacement resistance and also has excellent re-stripping performance, the performance in all aspects is relatively balanced, and the requirements of the electronic field are met; styrene blocks and tackifying resin are selected as main materials of the adhesive tape, expansion balls are added, surface gridding of UV curing grid exhaust glue is matched, the exhaust performance is improved, meanwhile, cross-linking curing is conducted through the UV radiation technology, and surface grid marks are shaped; the tackifying resin is modified through self-made tetraeugenol epoxy octaphenyl double-deck type silsesquioxane, the heat resistance and the tensile strength of the adhesive tape are improved on the basis of ensuring that the adhesive tape is soft, sticky and easy to adhere through limitation of components in the adhesive tape, and the adhesive tape is beneficial to improving the adhesive strength of the adhesive tape during later assembly and maintenance. And the adhesive tape is stretched and drawn out without breakage, so that the heavy industry performance is improved.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a UV curing grid exhaust adhesive and a preparation method thereof. Background technique [0002] With the development of society, users in consumer electronics, home appliances and other industries pay more attention to the appearance of products, which are thinner, more refined and personalized, and the pace of product updates is accelerated. put forward higher requirements. For example, in the battery process, in order to achieve the reliability of use during assembly, permanent adhesiveness must be maintained, but in the disassembly process, in order to protect the environment, it is necessary to maintain non-destructive disassembly, and the adhesive material used plays a key role. [0003] Adhesive materials commonly used in the early electronics industry are generally ordinary thick double-sided tape or thin PE foam double-sided tape, which is difficult to peel off,...

Claims

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Application Information

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IPC IPC(8): C09J151/00C09J11/04C09J11/08C09J7/30C09J7/40C08G77/04C08G77/38C08G77/12
CPCC09J151/006C09J11/04C09J11/08C09J7/30C09J7/403C08G77/045C08G77/38C08G77/12C09J2301/416C08L33/20C08L25/06C08L83/06C08K7/20
Inventor 顾正青夏有贵耿洪斌周奎任计建荣
Owner SUZHOU SHIHUA NEW MATERIAL TECH
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