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Epoxy resin-modified acrylic resin double-curing system needle adhesive and preparation method thereof

A technology of acrylic resin and epoxy resin, applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of slow curing speed of single-component epoxy needle glue, complicated equipment, large heat loss, etc., and achieve The effect of simplifying production equipment, easy operation and reducing production cost of enterprises

Active Publication Date: 2018-11-06
浙江航通舟新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and shortcomings of the single-component epoxy needle glue in the prior art, such as slow curing speed, complex equipment and large heat loss in production, the purpose of the present invention is to provide a dual-curing system of epoxy resin-modified acrylic resin Needle glue has the characteristics of "quick drying" and "high strength". The cured adhesive has the advantages of high bonding strength, small volume shrinkage, excellent heat and humidity resistance and solvent resistance, and moderate price

Method used

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  • Epoxy resin-modified acrylic resin double-curing system needle adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] With 80 parts by weight of E-51, 5 parts by weight of polyurethane acrylate, 2 parts by weight of butyl glycidyl ether, 3 parts by weight of isobornyl acrylate, 6 parts by weight of propylene oxide modified dicyandiamide, 3.7 parts by weight Parts by weight of 4-hydroxybenzoyl hydrazide, 0.2 parts by weight of 2,4,6-trimethylbenzoyl diphenylphosphine oxide, 0.1 parts by weight of ethyl 4-dimethylaminobenzoate, mixed and protected from light Stir evenly to obtain a dual-cure system needle glue.

Embodiment 2

[0036] 40 parts by weight of E-44, 25 parts by weight of epoxy acrylate, 5 parts by weight of benzyl glycidyl ether, 5 parts by weight of o-cresyl glycidyl ether, 15 parts by weight of methacrylic acid-β-hydroxy Ethyl ester, 8 parts by weight of dicyandiamide, 1.5 parts by weight of photoinitiator 1-hydroxycyclohexyl phenyl ketone, and 0.5 parts by weight of triethanolamine were mixed in the dark and stirred evenly to obtain a dual-cure system needle glue.

Embodiment 3

[0038] 50 parts by weight of E-51, 15 parts by weight of polyester acrylate, 10 parts by weight of polypropylene glycol diglycidyl ether, 10 parts by weight of C12 fatty glycidyl ether, 2 parts by weight of 1,6-hexanediol Diacrylate, 5 parts by weight of modified imidazole, 4 parts by weight of modified dicyandiamide, 2 parts by weight of isophthalic acid hydrazide, 1.5 parts by weight of photoinitiator 2-hydroxyl-2-methyl-1 -Phenyl-1-propanone and 0.5 parts by weight of N,N-dimethylaminobenzamide were mixed in the dark and stirred evenly to obtain a dual-curing system needle glue.

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Abstract

The invention discloses an epoxy resin-modified acrylic resin double-curing system needle adhesive. The adhesive comprises the following raw materials by weight: 20-80 parts of epoxy resin, 5-60 partsof modified acrylic resin, 2-20 parts of epoxy reactive diluent, 2-30 parts of acrylate reactive diluent, 2-20 parts of latent curing agent, 0.2-5 parts of photoinitiator and 0.1-3 parts of sensitizer. A preparation method and an application of the epoxy resin-modified acrylic resin double-curing system needle adhesive are further disclosed. The epoxy resin-modified acrylic resin double-curing system needle adhesive has the advantages of 'quick drying' and 'high strength', and an adhesive condensate has the advantages of high bonding strength, small volume shrinkage, good damp heat resistanceand solvent resistance and moderate price.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an epoxy resin-modified acrylic resin dual-curing system needle glue and a preparation method thereof. Background technique [0002] Epoxy resin has the characteristics of excellent mechanical properties, high adhesion, and strong processability, and is widely used in the fields of coatings, adhesives, and composite materials. One-component epoxy resin adhesives with high bonding strength are often used to connect the metal needle tube in the needle of the existing disposable sterile syringe to the plastic needle seat. One-component epoxy resin adhesives have the advantages of convenient use and stable performance, but they also have the disadvantages of slow curing speed and high curing temperature. In the actual production process of syringe needles, due to the above-mentioned shortcomings of epoxy adhesives, it generally needs to be heated in an open heating furnace (generally greate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/06C09J11/08
CPCC08L2201/08C08L2205/04C09J11/06C09J11/08C09J163/00C08L75/14C08K5/17C08K5/20
Inventor 胡宏军朱增裕
Owner 浙江航通舟新材料科技股份有限公司
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