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A kind of ultraviolet curing adhesive for temporary protection and preparation method thereof

A temporary protection, ultraviolet light technology, applied in the direction of adhesives, adhesive additives, adhesive types, etc., to achieve the effect of fast nucleation, low hardness, and improved product quality

Active Publication Date: 2020-05-26
YANTAI SEAYU NEW MATERIALS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a UV-curable adhesive for temporary protection and its preparation method. The present invention solves the problem that when the adhesive is used for temporary protection in the CNC process, it plays a protective role in the early stage. , easy to peel off in the later stage, and the glue has no residue on the metal shell and no peeling off

Method used

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  • A kind of ultraviolet curing adhesive for temporary protection and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] It consists of the following raw materials in parts by weight: 40 parts of self-made bifunctional urethane acrylate prepolymer, 10 parts of multifunctional urethane acrylate prepolymer, 8 parts of polyester acrylate prepolymer, and 12 parts of reactive amine complexing agent , 20 parts of acrylate reactive diluent, 2 parts of leveling wetting agent, 2 parts of photoinitiator, 1 part of titanium dioxide nanowire, 5 parts of fumed silica;

[0045] The self-made bifunctional polyurethane acrylate prepolymer is carried out according to the following steps:

[0046] Dehydrate the polyether diol at a temperature of 110°C and a pressure of -0.098MPa for 1.5 hours; add diisocyanate at a temperature of 60°C and a pressure of -0.098, stir for 0.6h, add a catalyst, and React at 75°C and pressure -0.098MPa for 2h; Add polymerization inhibitor and hydroxyl-containing acrylate in sequence and stir for 2h at temperature 70°C and pressure -0.098MPa, take samples every 30min with infrar...

Embodiment 2

[0053] It consists of the following raw materials in parts by weight: 40 parts of self-made bifunctional urethane acrylate prepolymer, 10 parts of multifunctional urethane acrylate prepolymer, 8 parts of polyester acrylate prepolymer, and 12 parts of reactive amine complexing agent , 20 parts of acrylate reactive diluent, 2 parts of leveling and wetting agent, 2 parts of photoinitiator, 1.5 parts of titanium dioxide nanowire, 4.5 parts of fumed silica;

[0054] The self-made bifunctional polyurethane acrylate prepolymer is carried out according to the following steps:

[0055] Dehydrate the polyether diol at a temperature of 110°C and a pressure of -0.098MPa for 1.5 hours; add diisocyanate at a temperature of 60°C and a pressure of -0.098, stir for 0.6h, add a catalyst, and React at 75°C and pressure -0.098MPa for 2h; Add polymerization inhibitor and hydroxyl-containing acrylate in sequence and stir for 2h at temperature 70°C and pressure -0.098MPa, take samples every 30min wi...

Embodiment 3

[0062] It consists of the following raw materials in parts by weight: 40 parts of self-made bifunctional urethane acrylate prepolymer, 10 parts of multifunctional urethane acrylate prepolymer, 8 parts of polyester acrylate prepolymer, and 12 parts of reactive amine complexing agent , 20 parts of acrylate reactive diluent, 2 parts of leveling wetting agent, 2 parts of photoinitiator, 2 parts of titanium dioxide nanowires, 4 parts of fumed silica;

[0063] The self-made bifunctional polyurethane acrylate prepolymer is carried out according to the following steps:

[0064] Dehydrate the polyether diol at a temperature of 110°C and a pressure of -0.098MPa for 1.5 hours; add diisocyanate at a temperature of 60°C and a pressure of -0.098, stir for 0.6h, add a catalyst, and React at 75°C and pressure -0.098MPa for 2h; Add polymerization inhibitor and hydroxyl-containing acrylate in sequence and stir for 2h at temperature 70°C and pressure -0.098MPa, take samples every 30min with infr...

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Abstract

The invention relates to an ultraviolet curing adhesive for temporary protection and a preparation method of the ultraviolet curing adhesive. The ultraviolet curing adhesive is prepared from the following raw materials by weight: 20-60 parts of a self-made bifunctional polyurethane acrylate prepolymer, 5-15 parts of a multi-functional polyurethane acrylate prepolymer, 5-15 parts of a polyester acrylate prepolymer, 5-20 parts of a reactive amine compounding agent, 10-30 parts of acrylate type active diluents, 0.5%-5% of a leveling wetting agent, 1%-5% of a photoinitiator, 0.5-5 parts of titanium dioxide nanowires and 0.1-10 parts of fumed silica. The ultraviolet curing adhesive is suitable for temporary protection of a metal casing and plays a protective role in post-processing of CNC, and can be easily peeled off after CNC processing. Residues on the metal casing and falling off of the adhesive are avoided.

Description

technical field [0001] The invention relates to an ultraviolet curing adhesive for temporary protection and a preparation method thereof. Background technique [0002] With the continuous expansion of the application field of ultraviolet light technology, ultraviolet light curing adhesives play an important role in electronic products such as mobile phones, televisions, and computers. In this era when user experience is highly valued, more and more manufacturers of mobile phones, notebooks, and wearable devices have begun to focus on shell materials. From the perspective of the mobile phone field, the shell material is gradually transitioning from engineering plastics to metal. When it comes to all metal, CNC must be mentioned. At present, the all-metal casings of 3C products are basically processed by CNC machine tools (Computer numerical control machine tools, CNC). Because of its advantages of high efficiency, high precision and stable processing quality, CNC has becom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/14C09J167/06C09J11/04C08G18/67C08G18/48
CPCC08G18/4833C08G18/672C08K2003/2241C08K2201/011C08L2203/20C08L2205/025C08L2205/03C09J11/04C09J175/14C08L75/14C08L67/06C08K7/00C08K3/22C08K3/36
Inventor 李不悔李峰贺国新张利文
Owner YANTAI SEAYU NEW MATERIALS CORP LTD
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