Polymer flame retardant and preparation method thereof

A flame retardant and polymer technology, which is applied in the field of polymer flame retardants and their preparation, can solve problems such as hindering widespread application, reducing flame retardant durability, and general flame retardant effect, achieving low cost and high flame retardant performance , the effect of simple operation

Inactive Publication Date: 2021-06-01
欧阳杰
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardant effect is general, and it needs to be compounded with other flame retardants to improve the flame retardant effect when used, which hinders its wide application
In addition, as time goes on, chlorinated paraffins are easy to migrate out of the polymer network, reducing the durability of flame retardancy

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
  • Polymer flame retardant and preparation method thereof
  • Polymer flame retardant and preparation method thereof
  • Polymer flame retardant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Preparation of carboxyl-containing chlorinated paraffin 42: Dissolve 20 g of chlorinated paraffin 42 in 210 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 28 g of potassium carbonate, and react at 65° C. for 24 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 42.

[0032] 2) Preparation of chlorinated paraffin 42 containing acid chloride: add 70 mol of chlorinated paraffin 42 containing carboxyl group to the reaction kettle, add 85 mol of phosphorus trichloride dropwise, stir and heat up to 50°C, react for 4 hours, cool to room temperature, stand and separate Chlorinated paraffins 42 containing acid chlorides were obtained.

[0033] 3) Preparation of isocyanurate-modified chlorinated paraffin 42 monohydric alcohol: add 100mol tris(2-hydroxyethyl)isocyanurate a...

Embodiment 2

[0038] 1) Preparation of carboxyl-containing chlorinated paraffin 52: Dissolve 20 g of chlorinated paraffin 52 in 220 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 29 g of potassium carbonate, and react at 65° C. for 24 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol. The product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 52.

[0039] 2) Preparation of chlorinated paraffin 52 containing acid chloride: add 70 mol of carboxyl-containing chlorinated paraffin 52 to the reaction kettle, add 85 mol of phosphorus trichloride dropwise, stir and heat up to 70°C, react for 4 hours, cool to room temperature, and stand for stratification The chlorinated paraffin 52 containing the acid chloride was obtained.

[0040]3) Preparation of isocyanurate-modified chlorinated paraffin 52 monohydric alcohol: add 100mol tris(2-hydroxyethyl)isocyanura...

Embodiment 3

[0045] 1) Preparation of carboxyl-containing chlorinated paraffin 52: Dissolve 20 g of chlorinated paraffin 52 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 23 g of potassium carbonate, and react at 65° C. for 24 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol. The product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 52.

[0046] 2) Preparation of chlorinated paraffin 52 containing acid chloride: add 70 mol of chlorinated paraffin 52 containing carboxyl group to the reaction kettle, add 85 mol of phosphorus trichloride dropwise, stir and heat up to 60°C, react for 5 hours, cool to room temperature, and let stand to separate The chlorinated paraffin 52 containing the acid chloride was obtained.

[0047] 3) Preparation of isocyanurate-modified chlorinated paraffin 52 monohydric alcohol: add 100mol tris(2-hydroxyethyl)isocya...

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 polymer flame retardant. A preparation method of the polymer flame retardant comprises the following steps of: firstly, reacting chlorinated paraffin with p-hydroxybenzoic acid to obtain carboxyl-containing chlorinated paraffin, then acylating the carboxyl-containing chlorinated paraffin to obtain acyl chloride-containing chlorinated paraffin, then carrying out esterification reaction on the acyl chloride-containing chlorinated paraffin and tris (2-hydroxyethyl) isocyanurate to respectively obtain isocyanurate modified chlorinated paraffin containing unitary hydroxyl and isocyanurate modified chlorinated paraffin containing binary hydroxyl, reacting the product containing unitary hydroxyl with trimellitic anhydride to obtain binary acid, and carrying out polymerization reaction on the binary acid and the isocyanurate modified chlorinated paraffin containing binary hydroxyl to obtain the polymer flame retardant. The preparation method is simple to operate, wide in raw material source and mild in reaction condition, and meets industrial production.

Description

technical field [0001] The invention relates to a polymer flame retardant and a preparation method thereof, belonging to the field of plastic rubber flame retardants. Background technique [0002] With the development of the national economy and the improvement of people's living standards, synthetic fibers, plastics, rubber and other polymer materials are more and more widely used in transportation, building materials, electronic appliances, daily furniture, interior decoration and other fields. However, these polymer materials are generally flammable and easy to cause fire accidents. In order to solve the problems of flame resistance and smoke suppression of synthetic materials and ensure the safety of synthetic materials, the most effective method is to add flame retardants. Due to the low addition amount, low price and good compatibility with synthetic materials, halogen-based flame retardants do not change the original mechanical processing properties of flame retardant...

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): C10G73/38C08L27/06C08L91/06
CPCC08L27/06C08L2201/02C10G73/38C08L91/06
Inventor 欧阳杰
Owner 欧阳杰
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap