Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-performance modified epoxy alicyclic amine curing agent and preparation method thereof

An epoxy grease, high-performance technology, applied in the field of modified epoxy alicyclic amine high-performance curing agent and its preparation, can solve the problems of large proportion, inconvenient operation and use, high alicyclic amine amine value, and achieves Improve adhesion, effective control of reaction temperature and time, and stable performance

Inactive Publication Date: 2015-03-11
宋良俊
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many kinds of epoxy resin curing agents. Take isophorone diamine as an example. Isophorone diamine is referred to as IPDA. A mixture of two isomers of aminomethyl 3,5,5-trimethylcyclohexylamine, as a cycloaliphatic diamine, IPDA can be used in all common amine reactions, widely used in glass In some composite materials such as baking paint and wine bottle paint, but due to the defects of high amine value, large proportion, moisture absorption and brittleness of alicyclic amine, it is not easy to operate and use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation method of modified epoxy alicyclic amine high-performance curing agent described in the present embodiment, comprises the steps:

[0028] S1: Add 20 grams of isophorone diamine, 40 grams of benzyl alcohol, 15 grams of 1,3-cyclohexanedimethylamine, 30 grams of N-aminoethylpiperazine, 15 grams of amino-terminated polyether in the reaction kettle, Stir well after mixing;

[0029] S2: Connect a vacuum pipeline with negative pressure into the reaction kettle, drop 35 grams of epoxy resin into the reaction kettle through the control valve at a constant speed and concentrate the reaction, and at the same time turn on the circulating cooling water to control the reaction temperature at 75°C , the dropping time is controlled at 35 minutes;

[0030] S3: keep the materials in the reaction kettle for concentrated reaction for 3 hours, close the circulating cooling water until the temperature cools down to 55° C., and discharge the material in a vacuum.

[00...

Embodiment 2

[0036] A kind of preparation method of modified epoxy alicyclic amine high-performance curing agent described in the present embodiment, comprises the steps:

[0037] S1: Add 30 grams of isophorone diamine, 45 grams of benzyl alcohol, 8 grams of 1,3-cyclohexanedimethylamine, 35 grams of N-aminoethylpiperazine, 20 grams of amino-terminated polyether in the reaction kettle, Stir well after mixing;

[0038] S2: Connect a vacuum pipeline with negative pressure into the reaction kettle, drop 10 grams of epoxy resin into the reaction kettle through the control valve at a constant speed and concentrate the reaction, and at the same time turn on the circulating cooling water to control the reaction temperature at 80°C , the dropping time is controlled at 40 minutes;

[0039] S3: keep the materials in the reaction kettle for concentrated reaction for 3 hours, close the circulating cooling water until the temperature is cooled to 50° C., and discharge the material in a vacuum.

[0040...

Embodiment 3

[0044] A kind of preparation method of modified epoxy alicyclic amine high-performance curing agent described in the present embodiment comprises the following steps:

[0045] S1: Add 40 grams of isophorone diamine, 30 grams of benzyl alcohol, 11 grams of 1,3-cyclohexanedimethylamine, 38 grams of N-aminoethylpiperazine, 10 grams of amino-terminated polyether in the reaction kettle, Stir well after mixing;

[0046] S2: Connect a vacuum pipeline with negative pressure into the reaction kettle, drop 21 grams of epoxy resin into the reaction kettle through the control valve at a constant speed and concentrate the reaction, and at the same time turn on the circulating cooling water to control the reaction temperature at 85°C , the dropping time is controlled at 30 minutes;

[0047] S3: keep the materials in the reaction kettle for concentrated reaction for 3 hours, close the circulating cooling water until the temperature cools down to 45° C., and discharge the material in a vacuu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Temperature resistanceaaaaaaaaaa
Shear strengthaaaaaaaaaa
Shore hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-performance modified epoxy alicyclic amine curing agent. The high-performance modified epoxy alicyclic amine curing agent has the characteristics of being stable in performance and low in irritability and specifically has the following characteristics: the color is transparent, the temperature tolerance can reach 120-150 DEG C, the shore hardness reaches 80-85D, the adhesive force reaches the class A, the alcohol tolerance can have no change in color for 15 days, and the shearing strength is 12-16 MPa; the high-performance modified epoxy alicyclic amine curing agent can be widely applied to the fields of high-temperature baking type anti-yellowing glass paint, normal-temperature self-drying glass paint, solvent-resistant high-adhesion wine bottle paint, adhesives and transparent anti-yellowing electronic potting. The invention also provides a preparation method of the high-performance modified epoxy alicyclic amine curing agent; the raw material components are scientific and reasonable in ratio; the preparation method is scientific and reasonable; the temperature and the time of reaction in the preparation process can be effectively controlled; the curing agent with moderate viscosity, rate and ratio can be prepared; the self moisture absorption property and brittleness of the alicyclic amine can be greatly improved; the adhesive force, the adhesive performance and the solvent resistance of the alicyclic amine are improved.

Description

technical field [0001] The invention relates to the technical field of curing agent preparation, in particular to a modified epoxy alicyclic amine high-performance curing agent and a preparation method thereof. Background technique [0002] Epoxy resin is an important thermosetting plastic. It has a series of excellent properties, such as high bonding strength, small shrinkage, good dielectric properties and heat resistance, so it is widely used in electronics, adhesives, coatings, etc. , construction, national defense and many other production fields. [0003] Epoxy resin endows epoxy resin paint with excellent properties, and epoxy resin must be cross-linked with curing agent to form molecules of network structure. There are many kinds of epoxy resin curing agents. Take isophorone diamine as an example. Isophorone diamine is referred to as IPDA. A mixture of two isomers of aminomethyl 3,5,5-trimethylcyclohexylamine, as a cycloaliphatic diamine, IPDA can be used in all co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08G59/64C08G59/56
Inventor 宋良俊
Owner 宋良俊
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com