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Free Radical-Cation-Oxidative Conjunctival Triple Curing Resin and Method for Making It

A technology of oxidized conjunctiva and triple curing, which is applied in the field of epoxy acrylate resin and its preparation, can solve the problems of not being able to adapt to high-speed printing and slow drying of oxidized conjunctiva, and solve the problem of incomplete drying and fast curing of thick films , The effect of low curing shrinkage

Active Publication Date: 2017-01-25
CHINA BANKNOTE INK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the drying speed of the oxidized conjunctiva is very slow, and it usually takes more than ten hours to completely harden the film layer, which cannot meet the requirements of high-speed printing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) In a 500ml four-necked flask, add 200g of bis(3,4-epoxycyclohexylmethyl)adipate and 4-methoxyphenol accounting for 1% of epoxy resin mass, and heat to 50°C , the metered linolenic acid (the molar ratio of epoxy resin to linolenic acid is 1:0.5) is added dropwise to the epoxy resin for 2 hours, and the linolenic acid is added with 0.3% tetrabutylene, which accounts for 0.3% of the mass of the epoxy resin. ammonium bromide;

[0025] After the addition of linolenic acid is complete, control the reaction system at 60°C and react for 1 hour to obtain a bifunctional epoxy prepolymer with an epoxy group at one end and an unsaturated fatty acid double bond at the other end;

[0026] (2) the above-mentioned synthetic bifunctional epoxy prepolymer is dissolved in methylene chloride, adding triethylamine accounting for 0.1% of the bifunctional epoxy prepolymer quality;

[0027] Slowly add the measured amount of acryloyl chloride dropwise, and the dropping time is 1 hour, (the...

Embodiment 2

[0030] (1) In a 500ml four-necked flask, add 200g of 3,4-epoxycyclohexyl carboxylate and 4-methoxyphenol accounting for 1% of the epoxy resin quality, heat to 60°C, and the metered oleic acid (The molar ratio of epoxy resin and oleic acid is 1:0.6) was added dropwise in the epoxy resin for 3 hours, and tetrabutylammonium bromide accounting for 0.3% of the mass of the epoxy resin was added to the oleic acid;

[0031] After the oleic acid is added dropwise, control the reaction system at 70°C and react for 2 hours to obtain a bifunctional epoxy prepolymer with an epoxy group at one end and an unsaturated fatty acid conjugated double bond at the other end;

[0032] (2) the bifunctional epoxy prepolymer of above-mentioned synthesis is dissolved in methylene chloride, adds and accounts for the triethylamine of 0.3% of bifunctional epoxy prepolymer quality; Slowly add the acryloyl chloride of metering again, dropwise 2 hours, (the molar ratio of epoxy prepolymer to acryloyl chloride...

Embodiment 3

[0035] (1) In a 1000ml four-necked flask, add 500g of bis(3,4-epoxycyclohexylmethyl)adipate and 4-methoxyphenol accounting for 3% of epoxy resin mass, and heat to 80°C , the metered linolenic acid (the molar ratio of epoxy resin and linolenic acid is 1:1) is added dropwise in the epoxy resin, and the dropping time is 4 hours, and 0.5% tetrabutylene, which accounts for 0.5% of the mass of the epoxy resin, is added in the linolenic acid ammonium bromide;

[0036] After the addition of linolenic acid is complete, control the reaction system at 100°C and react for 3 hours to obtain a bifunctional epoxy prepolymer with an epoxy group at one end and an unsaturated fatty acid double bond at the other end;

[0037] (2) the bifunctional epoxy prepolymer of above-mentioned synthesis is dissolved in methylene chloride, adds and accounts for the triethylamine of 0.5% of bifunctional epoxy prepolymer quality; The time is 3 hours, (the molar ratio of epoxy prepolymer to acryloyl chloride i...

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PUM

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Abstract

The invention discloses free radical-positive ion-oxide conjunctiva triple curing resin and a preparation method thereof. The preparation method comprises the following steps: (1) heating a compound, which contains at least two epoxy groups, and 4-metoxyphenol, dropwise adding unsaturated vegetable oleic acid containing an alkali catalyst, and reacting; (2) dissolving the products obtained in the step (1) in methylene dichloride, adding triethylamine, then dropwise adding acryloyl chloride, and reacting to obtain the free radical-positive ion-oxide conjunctiva triple curing resin. The free radical-positive ion-oxide conjunctiva triple curing resin and the preparation method can solve the problems that a thick film is incomplete in drying and a dark coating film is not easy to dry; the free radical-positive ion-oxide conjunctiva triple curing resin is high in curing speed, high in curing degree and low in curing shrinkage, and has the advantages of being economical, energy-saving, environment-friendly and the like.

Description

technical field [0001] The invention relates to an epoxy acrylate resin with unsaturated fatty acid double bonds and a preparation method thereof. Background technique [0002] The UV curing technology is to trigger the polymerization and crosslinking reaction between the low molecular prepolymer or oligomer in the system and the monomer molecule as the active diluent under the ultraviolet radiation with a wavelength of 200-450nm, thereby Liquid becomes solid and dries. UV curing technology has the advantages of fast curing speed, continuous process, energy saving, environmental protection, etc. It has achieved rapid development in recent years and maintained a relatively fast growth rate. [0003] According to different initiation systems, UV curing can be divided into UV radical curing system and UV cationic curing system. [0004] Radical photocuring is the use of free radical photoinitiators to initiate free radical polymerization of unsaturated polyester, acrylate and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/14
Inventor 董勤孙明珠蒋煜杨鹏牛牧徐莹
Owner CHINA BANKNOTE INK
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