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UV-curing adhesive with low Tg point and high permeability and preparation method thereof

A high-permeability, UV-light technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of difficult optical fiber protection, high glass transition temperature, poor permeability, etc., and achieve wettability Good, low surface tension, good dry effect

Active Publication Date: 2016-09-07
YANTAI SEAYU NEW MATERIALS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of high glass transition temperature and poor permeability of the UV-curable adhesive in the prior art, which is difficult to apply to optical fiber protection, to expand the application field of UV-curable adhesive, and to provide a UV-curable adhesive for optical fiber protection. Ultraviolet curable adhesive with low glass transition temperature, the adhesive Tg≤-50℃, good wetting performance, good surface dryness, good toughness, excellent resistance to heat and humidity and high temperature performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 400 grams of polypropylene glycol (Mn=4000) into the reactor, vacuum dehydrate at 105°C for 2 hours, cool down to 60°C, add 55 grams of isophorone diisocyanate, stir in vacuum for 0.5 hours, then add 0.1 g of dibutyltin dilaurate, react at 70°C for 2.5 hours, add 23 g of hydroxyethyl methacrylate, 4 g of hydroxypropyl methacrylate, and 0.1 g of hydroquinone to continue to react at 75°C for 2 hours, each Sampling and measuring the NCO value every 30 minutes, until the measured value is zero, the material is discharged, and the test Tg is -59.1 °C;

[0025] Accurately take each raw material by weight percentage, self-made low Tg urethane acrylate prepolymer 15g, CN9021 of Sartomer Company, 30g; CN965NS, 8g; Ethoxy ethoxy ethyl acrylate 25g; Isodecyl acrylate 15g Photoinitiator 184, 3g; Photoinitiator TPO, 1g; Leveling wetting agent TEGO-4100, 1g, BYK-307, 1g; Silane coupling agent KH560, 1g. Put the above components into the double planetary power mixing mixer in tur...

Embodiment 2

[0027] Add 600 grams of polypropylene glycol (Mn=6000) into the reactor, vacuum dehydrate at 105°C for 2 hours, cool down to 60°C, add 55 grams of isophorone diisocyanate, stir in vacuum for 0.5 hours, then add 0.1 g of dibutyltin dilaurate, react at 70°C for 2.5 hours, add 23 g of hydroxyethyl methacrylate, 4 g of hydroxypropyl methacrylate, and 0.1 g of hydroquinone to continue to react at 75°C for 2 hours, each Sampling and measuring the NCO value every 30 minutes, until the measured value is zero, the material is discharged, and the test Tg is -60.3°C;

[0028] Accurately take each raw material by weight percentage, make low Tg urethane acrylate prepolymer 10g, CN9021 of Sartomer Company, 30g; CN9014, 8g; Ethoxy ethoxy ethyl acrylate 20g; Acrylate isodecyl 25g ; Photoinitiator 184, 2.5g; Photoinitiator TPO, 1.5g; Leveling wetting agent TEGO-4000, 1g, BYK-331, 1g; Silane coupling agent KH560, 1g. Put the above components into the double planetary power mixing mixer in turn...

Embodiment 3

[0030] Add 800 grams of polypropylene glycol (Mn=8000) into the reactor, vacuum dehydrate at 105°C for 2 hours, cool down to 60°C, add 55 grams of isophorone diisocyanate, stir in vacuum for 0.5 hours, then add 0.1 g of dibutyltin dilaurate, react at 70°C for 2.5 hours, add 23 g of hydroxyethyl methacrylate, 4 g of hydroxypropyl methacrylate, and 0.1 g of hydroquinone to continue to react at 75°C for 2 hours, each Sampling and measuring the NCO value every 30 minutes, until the measured value is zero, the material is discharged, and the test Tg is -61.2°C;

[0031] Accurately take each raw material by weight percentage, low Tg urethane acrylate prepolymer 23g, CN9021,20g of Sartomer Company; CN965NS, 10g; Ethoxy ethoxy ethyl acrylate 25g; Lauryl methyl Acrylate 15g; Photoinitiator 184, 3g; Photoinitiator TPO, 1g; Leveling wetting agent TEGO-4100, 1g, BYK-307, 1g; Silane coupling agent KH560, 1g. Put the above components into the dual planetary power mixing mixer in turn, evac...

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Abstract

The invention provides a UV-curing adhesive with low Tg point and high permeability and a preparation method thereof. The UV-curing adhesive is prepared from the following raw materials in parts by weight: 10-30 parts of a self-prepared urethane acrylate prepolymer with low Tg point, 30-60 parts of aliphatic polyurethane acrylate with low Tg point, 20-50 parts of a reactive diluent with low Tg point, 0.5-5 parts of a leveling wetting agent, 2-4 parts of a photoinitiator and 1-3 parts of a silane coupling agent; the self-prepared urethane acrylate prepolymer comprises long-chain glycol, diisocyanate, a catalyst, a polymerization inhibitor, an antioxygen and hydroxyl acrylate resin; the molar ratio of long-chain glycol, diisocyanate and acroleic hydroxyl ester is 1:(1.82.0):(1.8-2.0); the catalyst, the polymerization inhibitor and the antioxygen respectively account for 0.01-0.1wt% of the urethane acrylate prepolymer with low Tg point. Compared with the prior art, the UV-curing adhesive has the vitrification temperature less than or equal to 50 DEG C, and has the performances of low surface tension is low, good wettability, good surface dryness, excellent tenacity, excellent dampness and humidity resistance, high temperature resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of structural bonding, and in particular relates to a low-glass-transition-temperature high-permeability UV-curable adhesive for optical fiber protection and a preparation method. Background technique [0002] As we all know, UV-curable adhesives have some outstanding features such as good compatibility, fast curing speed, high strength, and environmental protection, so they are widely used in the fields of optics, electronic appliances, and digital discs. But there are also certain limitations. For a long time, research at home and abroad has generally focused on the mechanical properties, curing speed and water absorption of UV-curable adhesives, while rarely considering its glass transition temperature (Tg) and permeability, which often cannot meet some requirements. The use requirements of special fields, such as optical fiber protection, require that the adhesive can penetrate into the interior, and af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J11/06C08G18/67C08G18/48
CPCC08G18/4825C08G18/4854C08G18/672C08L2201/08C08L2205/025C08L2205/03C09J11/06C09J175/14C08L75/14
Inventor 李不悔李峰贺国新
Owner YANTAI SEAYU NEW MATERIALS CORP LTD
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