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A kind of ultraviolet curing adhesive and its preparation method and application

A technology of curing glue and ultraviolet light, used in adhesives, non-polymer organic compound adhesives, polyether adhesives, etc., can solve problems such as environmental pollution and high odor, and achieve good bonding performance and low odor toxicity. , the preparation method is simple

Active Publication Date: 2021-01-01
SOUTH CHINA AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these adhesives have good bonding effect, they are easy to cause environmental pollution due to the strong smell of raw materials such as acrylate and nitrile rubber.

Method used

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  • A kind of ultraviolet curing adhesive and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A UV-curable adhesive made from the following steps:

[0029] (1) Weigh 2.28g of pentaerythritol tetrakis(3-mercaptopropionate) (monomer A) and 12.76g of trimethylolpropane triacrylate (monomer B) and stir for 100 s; then add 1.52g of epoxy resin 313 (Oligomer C) Mix and stir for 5 minutes until the solution is evenly mixed;

[0030] (2) Add 0.096 g of photoinitiator TPO, 3.14 g of diluent butyl acrylate, 0.05 g of defoamer JY-821 and 0.09 g of antioxidant 1726 into the above mixture in sequence, and stir with a magnetic stirrer under light-shielding conditions 15 min to obtain the UV-curable adhesive.

[0031] The resulting UV-curable adhesive is subjected to a performance test, comprising the following steps:

[0032] (1) Coat the UV-curable adhesive uniformly between the transparent or translucent PET or PVC or PC sheet and various metal sheets by coating or spraying, and compact it to form a thickness of 100 μm adhesive coating;

[0033] (2) The prepared adhesiv...

Embodiment 2

[0035] A UV-curable adhesive made from the following steps:

[0036] (1) Weigh 1.45g of trimethylolpropane (monomer A) and 14.76g of trimethylolpropane triacrylate (monomer B) and stir for 100s; then add 1.78g of epoxy resin 34715 (oligomer C) Mix and stir for 5 minutes until the solution is evenly mixed;

[0037] (2) Add 0.081 g of photoinitiator 819, 3.14 g of diluent isooctyl acrylate, 0.04 g of defoamer JY-821 and 0.10 g of antioxidant 1726 into the above mixture in sequence, and use a magnetic stirrer under shading conditions Stir for 15 min to obtain a UV-curable adhesive.

[0038] The performance test of the obtained UV-curable adhesive was the same as in Example 1, and the performance results are shown in Table 1.

Embodiment 3

[0040] A UV-curable adhesive made from the following steps:

[0041] (1) Weigh 2.24g of trimethylolpropane tris(3-mercaptopropionate) (monomer A) and 12.13g of polyethylene glycol 600 diacrylate (monomer B) and stir for 100s; then add 1.44g of ring Oxygen resin 313 (oligomer C) was mixed and stirred for 5 minutes until the solution was evenly mixed;

[0042] (2) Add 0.072 g of photoinitiator 184, 2.73 g of diluent tetrahydrofuryl acrylate, 0.04 g of defoamer JY-821 and 0.09 g of antioxidant 1010 to the above mixture, and stir with a magnetic stirrer under light-shielding conditions 15 min to obtain the UV-curable adhesive.

[0043] The performance test of the obtained UV-curable adhesive was the same as in Example 1, and the performance results are shown in Table 1.

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Abstract

The invention belongs to the technical field of light-cured adhesives, and particularly relates to an ultraviolet light-cured adhesive which is a blended solution containing a monomer A, a monomer B,an oligomer C, a photoinitiator, a diluent, a defoaming agent and an antioxidant, wherein the monomer A is a sulfydryl-containing carboxylic ester compound or trimethylolpropane, the monomer B is a polyethylene glycol diacrylate or triacrylate compound, and the oligomer C is epoxy resin. The ultraviolet curing adhesive has the advantages of high curing speed, favorable bonding property, low odor toxicity and high adhesive force. The ultraviolet light-cured adhesive has the advantages of simple preparation method and the like, can well bond common metals (aluminum, iron, steel and the like) andcommon plastics (PET, PC, PVC and the like) together, can still maintain long-time bonding performance under the conditions of higher humidity and temperature, and has favorable tensile shear strength and wide application field.

Description

technical field [0001] The invention belongs to the technical field of light-curing adhesives, and in particular relates to an ultraviolet light-curing adhesive and its preparation method and application. Background technique [0002] Since metal adhesives are more convenient, more environmentally friendly and more accurate than traditional processes in repairing defects and damages of metal parts, such as bonding, it will not cause structural deformation and crystal phase changes due to high temperature heating like welding, It will not cause stress concentration and strength reduction due to drilling and buckle like riveting, so it is widely used. Although the synthesized metal adhesives have excellent bonding effect on metal materials, their application in industrial production is limited due to the problems of mechanical strength, high temperature resistance, and aging resistance of traditional adhesives. [0003] At present, metal adhesives used for bonding metals to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/02C09J4/06C09J171/02C09J163/00
CPCC09J4/06C09J171/02C08L63/00
Inventor 董先明吕展衡刘丽珠郑文旭周武艺伍菲菲
Owner SOUTH CHINA AGRI UNIV
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