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

A kind of preparation method of flame-retardant core-shell type waterborne acrylic resin coating

A water-based acrylic and ester resin technology, used in fire-resistant coatings, coatings, etc., can solve the problem of halogen flame retardants burning large smoke and other problems, and achieve the effect of improving hot stickiness and cold brittleness

Active Publication Date: 2016-03-02
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, acrylate resins have the defects of hot stickiness, cold brittleness and flammability. Hot stickiness and brittleness can be improved by core-shell polymerization. At present, acrylate resins are easy to burn and phosphorus-based flame retardants are used for flame retardancy, but phosphorus will Causes eutrophication of water quality, and the combustion of halogenated flame retardants releases a lot of smoke, and it will cause dioxin problems

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

example 1

[0022] (1) Add 50g of water, 0.33g of emulsifier sodium dodecylbenzenesulfonate and fatty alcohol polyoxyethylene ether (the type of fatty alcohol polyoxyethylene ether is OS-15, non-ionic type, purchased from Jiangsu Haian Petrochemical Plant, the same below) 0.17g, methacrylic acid 0.3g, raise the reaction temperature to 40°C, stir for 15min, add A monomer, and emulsify for 30min. When the temperature rises to 70°C, flow back water, and when the temperature reaches 75°C, start to drop 5.2g of potassium persulfate solution dissolved in 5g of water, dropwise for 1h, keep warm for 3h, add dodecyltriphenylphosphonium chloride 1g, stirring reaction time 1h, to obtain the core layer emulsion;

[0023] A monomer and its dosage: A monomer is composed of 6g of butyl acrylate, 4g of methyl methacrylate, 2.5g of ethyl acrylate, and 3g of diborene;

[0024] (2) Add B monomer and 5.3g of potassium persulfate solution dissolved in 5g of water to the core layer emulsion at the same time, ...

example 2

[0027] (1) Add 70g of water, 1.2g of emulsifier sodium dodecylbenzenesulfonate, 0.6g of fatty alcohol polyoxyethylene ether, and 3.0g of methacrylic acid into a three-necked flask, raise the reaction temperature to 40°C, and stir for 15 minutes. Add A monomer, emulsification time 45min. When the temperature rises to 70°C, flow back water, and when the temperature reaches 75°C, start to drop 5.4g of ammonium persulfate solution dissolved in 5g of water, dropwise for 3h, keep stirring for 5h, add dedecyltriphenylphosphonium bromide 3g, stirring reaction time 3h, to obtain the core layer emulsion;

[0028] A monomer and its dosage: A monomer is composed of 8g of butyl acrylate, 6g of methyl methacrylate, 3.5g of ethyl acrylate and 6g of diborene;

[0029] (2) Add monomer B and 5.5g of ammonium persulfate solution dissolved in 5g of water dropwise to the core layer emulsion at the same time, dropwise for 3h, keep warm at 85°C for 2h, add 20g of m-carborane dropwise, keep warm and...

example 3

[0032] (1) Add 60g of water, 0.8g of emulsifier sodium dodecylbenzenesulfonate, 0.4g of fatty alcohol polyoxyethylene ether, and 1.7g of methacrylic acid into a three-necked flask, raise the reaction temperature to 40°C, and stir for 15 minutes. Add A monomer, and the emulsification time is 35min. When the temperature rises to 70°C, flow back water, and when the temperature reaches 75°C, dissolve 5.3g of potassium persulfate solution in 5g of water, add dropwise for 2h, keep stirring for 4h, add 2g of dodecyltriphenylphosphonium chloride, Stirring reaction time 2h, obtain core layer emulsion;

[0033] A monomer and its dosage: A monomer is composed of 7g of butyl acrylate, 5g of methyl methacrylate, 3.0g of ethyl acrylate and 4.5g of diborene;

[0034] (2) Add monomer B and 5.4g of potassium persulfate solution dissolved in 5g of water to the core emulsion at the same time, add dropwise for 2h, keep warm at 80°C for 2h, add 15g of triphenylborane dropwise, keep stirring Reac...

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 relates to a method for preparing a flame-retardant core-shell water-based acrylic resin coating. Add water, emulsifier, methacrylic acid and monomer A to emulsify, and start to add the initiator dropwise when the temperature reaches 75°C. Time 1~3h, heat preservation reaction 3~5h, add quaternary phosphonium salt, reaction time 1~3h, get core layer emulsion; drop B monomer and initiator into the core layer emulsion at the same time, drop time 1~3h, 75 ~85°C heat preservation reaction time 2h, add borane dropwise, heat heat reaction 1~3h, then add dropwise crosslinking agent, heat heat reaction time 1~2h, cool down to 50°C, add emulsifier into the reaction system, reaction time 30min, Ammonia water is added to adjust the pH value to 7-8 to obtain a flame-retardant core-shell water-based acrylic resin coating. The obtained acrylate resin can greatly improve the flame retardancy, and can also improve the defect of "hot stickiness and cold brittleness" of the traditional acrylate resin.

Description

technical field [0001] The invention relates to a preparation method of water-based acrylic resin, in particular to a preparation method of flame-retardant core-shell type water-based acrylic resin coating. Background technique [0002] Compared with traditional solvent-based coatings, water-based coatings have the advantages of low price, safe use, saving resources and energy, and reducing environmental pollution and public nuisance, so it has become the main direction of the current development of the coatings industry. Water-based acrylic resin coatings are the fastest-growing and most diverse non-polluting coatings among water-based coatings. [0003] Water-based acrylic resins include acrylic resin emulsions, acrylic resin aqueous dispersions (also known as water-dilutable acrylic acid) and acrylic resin aqueous solutions. Emulsions are mainly synthesized by emulsifying oily ethylenic monomers in water under the initiation of water-based free radical initiators, while ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D5/18C08F220/18C08F220/14C08F212/08C08F220/06
Inventor 段宝荣
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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