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UV peelable adhesive containing free radical system

A free radical and peeling adhesive technology, which is applied in the field of pressure-sensitive adhesives, can solve the problems of high cost, high peeling force part difficulties, and failure to master the core technology, etc., to achieve excellent comprehensive performance of the product, improve cohesive strength and adhesive performance Effect

Pending Publication Date: 2022-07-29
上谷新材料(苏州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the production of UV viscous protective film, there are two existing methods. One is to directly purchase glue from abroad and prepare the glue formula independently. This method has the advantages of fast speed and good quality, but the disadvantage is that it is expensive and there is no domestic Master the core technology; Another method is to independently develop UV viscous glue, but the peeling force has not yet been adjusted in a wide range, and the part with high peeling force is still very difficult

Method used

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  • UV peelable adhesive containing free radical system
  • UV peelable adhesive containing free radical system

Examples

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Embodiment 1

[0019] The present embodiment provides a UV strippable adhesive containing a free radical system, comprising the following components by weight:

[0020] 70 parts of acrylic modified silicone resin,

[0021] 30 parts of trifunctional urethane acrylate,

[0022] 5 parts methyl methacrylate,

[0023] 18 parts of isobornyl acrylate,

[0024] Photoinitiator 1173: 3 parts;

[0025] Add UV free radical initiator, methyl methacrylate, reactive diluent and acrylic modified silicone resin to a container with a stirrer and a thermometer, stir at a constant speed for 4-6min, and irradiate the container with a UV LED light source with a wavelength of 3265nm. Initiate the polymerization of the monomers until the temperature no longer rises and then stop lighting; the prepared acrylate-based adhesive is mixed with trifunctional urethane acrylate to prepare UV light-induced peelable adhesive.

[0026] The trifunctional urethane acrylate of this embodiment is composed of 20 parts by weigh...

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Abstract

The invention discloses a UV peelable adhesive containing a free radical system. The UV peelable adhesive comprises the following components in parts by weight: 70-73 parts of acrylic acid modified organic silicon resin, 30-32 parts of trifunctional polyurethane acrylate, 5-8 parts of methyl methacrylate, 18-22 parts of a reactive diluent and 3-6 parts of a UV free radical initiator, a solution polymerization method is adopted to prepare base glue with reactive groups, polyfunctional group photosensitive resin is added into the base glue, the base glue and the polyfunctional group photosensitive resin are mixed to prepare the final product UV light-induced peelable glue, acrylic acid modified organic silicon resin is used as a modified monomer, a polar group-carboxyl group is introduced on a macromolecular chain, hydrogen bonds are generated between polymer molecular chains, and the UV light-induced peelable glue is obtained. The cohesive strength and the adhesive property of the polymer are greatly improved.

Description

technical field [0001] The invention relates to a UV peelable adhesive and a preparation method thereof, in particular to a UV peelable adhesive containing an acrylic modified silicone resin as the main body and a preparation method thereof, belonging to the technical field of pressure-sensitive adhesives. Background technique [0002] At present, the domestic viscosity reduction protective film mainly includes two types of UV viscosity reduction and thermal peeling, that is, the initial high bonding strength is guaranteed, and the viscosity will be lost after ultraviolet light or heating, which has a wide range of applications in process protection. However, for UV anti-viscosity protective film, there are few domestic manufacturers that can independently develop and produce them, mainly earning the middle price difference for purchased raw materials. Most of the core competitiveness of consciousness is only in the preparation of formulas or the development of coating techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/08C09J175/14
CPCC09J151/08C08L75/14
Inventor 李志明陈玉发
Owner 上谷新材料(苏州)有限公司
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