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

Core-shell flame retardant modified epoxy resin coating and preparation method thereof

A technology of epoxy resin coating and flame retardant, applied in the direction of epoxy resin coating, fireproof coating, coating, etc., can solve the problems of poor flame retardant effect and difficult to control the thickness of the shell, so as to reduce the thermal weight loss rate and achieve good resistance. The effect of burning synergy

Inactive Publication Date: 2021-09-17
深圳市晶孚科技有限公司
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a core-shell flame retardant modified epoxy resin coating and a preparation method thereof, which solves the difficulty in controlling the thickness of the shell of the traditional ammonium polyphosphate core-shell flame retardant and the problem of flame retardancy. Technical problem of poor combustion effect

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Core-shell flame retardant modified epoxy resin coating and preparation method thereof
  • Core-shell flame retardant modified epoxy resin coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of core-shell flame retardant modified epoxy resin coating, comprising the steps of:

[0030] (1) Preparation of ammonium polyphosphate suspension: 10g of ammonium polyphosphate is added to 200g of deionized water, stirred and mixed evenly to obtain ammonium polyphosphate suspension;

[0031] (2) Prepare chitosan solution: 1g chitosan is added to 100g, in the acetic acid solution of 1wt%, stir and mix uniformly, obtain chitosan solution;

[0032] (3) Preparation of polyglutamate solution: 3g sodium polyglutamate was added to 300g, 1wt% ammonia solution, stirred and mixed evenly to obtain polyglutamate solution;

[0033] (4) Preparation of chitosan-coated ammonium polyphosphate: 100g chitosan solution is added dropwise to 180g ammonium polyphosphate suspension, stirred and mixed evenly, then centrifuged and washed to obtain chitosan-coated ammonium polyphosphate ;

[0034] (5) Preparation of polyglutamate and chitosan co-coated ammonium polyphospha...

Embodiment 2

[0037] A preparation method of core-shell flame retardant modified epoxy resin coating, comprising the steps of:

[0038] (1) Preparation of ammonium polyphosphate suspension: 8g of ammonium polyphosphate is added to 200g of deionized water, stirred and mixed evenly to obtain ammonium polyphosphate suspension;

[0039] (2) Prepare chitosan solution: 1g chitosan is added to 100g, in the acetic acid solution of 1wt%, stir and mix uniformly, obtain chitosan solution;

[0040] (3) Preparation of polyglutamate solution: 3g sodium polyglutamate was added to 300g, 1wt% ammonia solution, stirred and mixed evenly to obtain polyglutamate solution;

[0041](4) Preparation of chitosan-coated ammonium polyphosphate: 100g chitosan solution is added dropwise to 150g ammonium polyphosphate suspension, stirred and mixed evenly, then centrifuged and washed to obtain chitosan-coated ammonium polyphosphate ;

[0042] (5) Preparation of polyglutamate and chitosan co-coated ammonium polyphosphate...

Embodiment 3

[0045] A preparation method of core-shell flame retardant modified epoxy resin coating, comprising the steps of:

[0046] (1) Preparation of ammonium polyphosphate suspension: 12g of ammonium polyphosphate is added to 200g of deionized water, stirred and mixed evenly to obtain ammonium polyphosphate suspension;

[0047] (2) Prepare chitosan solution: 1g chitosan is added to 100g, in the acetic acid solution of 1wt%, stir and mix uniformly, obtain chitosan solution;

[0048] (3) Preparation of polyglutamate solution: 3g sodium polyglutamate was added to 300g, 1wt% ammonia solution, stirred and mixed evenly to obtain polyglutamate solution;

[0049] (4) Preparation of chitosan-coated ammonium polyphosphate: 100g chitosan solution is added dropwise to 200g ammonium polyphosphate suspension, stirred and mixed evenly, then centrifuged and washed to obtain chitosan-coated ammonium polyphosphate ;

[0050] (5) Preparation of polyglutamate and chitosan co-coated ammonium polyphospha...

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

No PUM Login to View More

Abstract

The invention discloses a core-shell flame retardant modified epoxy resin coating and a preparation method thereof. The preparation method comprises the following six steps: preparing an ammonium polyphosphate suspension, preparing a chitosan solution, preparing a polyglutamate solution, preparing chitosan coated ammonium polyphosphate, preparing ammonium polyphosphate co-coated with polyglutamate and chitosan, and preparing the core-shell flame retardant modified epoxy resin coating. The core-shell flame retardant prepared by the invention has a good flame retardant synergistic effect. In the thermal decomposition process, phosphoric acid and polyphosphate derived from ammonium polyphosphate promote dehydration and carbonization of chitosan and polyglutamate, so that more carbon residues are left, further decomposition of the epoxy resin is inhibited along with the residue of more carbon residues, the maximum thermal weight loss rate is reduced, and the thickness of the shell layer of the ammonium polyphosphate core-shell flame retardant co-coated with the polyglutamate and the chitosan is controllable, so that the formation of a carbon layer can be further controlled, and the flame retardance of the epoxy resin is obviously improved.

Description

technical field [0001] The invention relates to the technical field of epoxy resin, in particular to a core-shell flame retardant modified epoxy resin coating and a preparation method thereof. Background technique [0002] Epoxy resin (EP), as a commonly used thermosetting material, has good mechanical properties and adhesive properties, and is widely used in electronic appliances, coatings, composite materials and other fields. However, EP is extremely flammable in the air, and it is accompanied by a large amount of black smoke and toxic gas when burning. In order to solve this problem, people have carried out research on the flame retardant technology of epoxy resin. Three categories: Additive flame retardant flame retardant epoxy resin, reactive flame retardant flame retardant epoxy resin, synergistic flame retardant flame retardant epoxy resin. [0003] Flame retardants are functional additives that can impart flame retardancy to flammable polymers. They are divided int...

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): C09D5/18C09D163/00
CPCC09D5/18C09D163/00C08K2003/323C08K9/10C08K3/32
Inventor 任嵬李鹏龙杰吴苏州
Owner 深圳市晶孚科技有限公司
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