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

Phosphorus-nitrogen-silicon-containing titanium dioxide hybrid nanoparticle flame retardant as well as preparation method and application thereof

A technology of hybrid nanoparticles and titanium dioxide, applied in the field of flame retardants, can solve the problems of low flame retardant efficiency and poor dispersion, and achieve the effects of improving flame retardant performance, increasing mechanical properties and suppressing combustion.

Active Publication Date: 2021-03-19
XIAMEN UNIV +2
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing polymer titanium dioxide flame retardant system, there are still problems such as poor dispersion and low flame retardant efficiency.

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
  • Phosphorus-nitrogen-silicon-containing titanium dioxide hybrid nanoparticle flame retardant as well as preparation method and application thereof
  • Phosphorus-nitrogen-silicon-containing titanium dioxide hybrid nanoparticle flame retardant as well as preparation method and application thereof
  • Phosphorus-nitrogen-silicon-containing titanium dioxide hybrid nanoparticle flame retardant as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] ①Preparation of VP3: Put 2.6g of vanillin in 50mL of analytically pure first solvent chloroform, then add 2mL of triethylamine and slowly add 0.90g of phosphorus oxychloride dropwise, stir for 2h, then heat up to 50°C for 9 hours , after cooling to room temperature, pour 200mL of petroleum ether, stir for half an hour after the white precipitate is precipitated, wash with ethanol several times, and then filter to obtain a white solid; the obtained solid is vacuum-dried at 70°C to constant weight to obtain a white powder, which is The resulting phosphorous-containing VP3;

[0044] ②Preparation of DPASi: Dissolve 2g of dichlorodiphenylsilane in 30mL of the second solvent acetone, slowly add it dropwise to 50mL of 2.18g of K 2 CO 3 and 2.32g of p-nitrophenol in acetone, the second solvent, reflux, condense and heat to 45°C, react for 48h, filter the reaction solution with suction to obtain a solid filter cake, wash the filter cake with deionized water and the second solve...

Embodiment 2

[0048] ①Preparation of VP3: Put 2.6g of vanillin in 50mL of analytically pure first solvent chloroform, then add 2mL of triethylamine and slowly add 0.90g of phosphorus oxychloride dropwise, stir for 2h, then heat up to 50°C for 9 hours , after cooling to room temperature, pour 200mL of petroleum ether, stir for half an hour after the white precipitate is precipitated, wash with ethanol several times, and then filter to obtain a white solid; the obtained solid is vacuum-dried at 70°C to constant weight to obtain a white powder, which is The resulting phosphorous-containing VP3;

[0049] ②Preparation of DPASi: Dissolve 2g of dichlorodiphenylsilane in 30mL of the second solvent acetone, slowly add it dropwise to 50mL of 2.18g of K 2 CO 3 and 2.32g of p-nitrophenol in acetone, the second solvent, reflux, condense and heat to 45°C, react for 48h, filter the reaction solution with suction to obtain a solid filter cake, wash the filter cake with deionized water and the second solve...

Embodiment 3

[0053] ①Preparation of VP3: Put 2.6g of vanillin in 50mL of analytically pure first solvent chloroform, then add 2mL of triethylamine and slowly add 0.90g of phosphorus oxychloride dropwise, stir for 2h, then heat up to 50°C for 9 hours , after cooling to room temperature, pour 200mL of petroleum ether, stir for half an hour after the white precipitate is precipitated, wash with ethanol several times, and then filter to obtain a white solid; the obtained solid is vacuum-dried at 70°C to constant weight to obtain a white powder, which is The resulting phosphorous-containing VP3;

[0054] ②Preparation of DPASi: Dissolve 2g of dichlorodiphenylsilane in 30mL of the second solvent acetone, slowly add it dropwise to 50mL of 2.18g of K 2 CO 3 and 2.32g of p-nitrophenol in acetone, the second solvent, reflux, condense and heat to 45°C, react for 48h, filter the reaction solution with suction to obtain a solid filter cake, wash the filter cake with deionized water and the second solve...

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 phosphorus-nitrogen-silicon-containing titanium dioxide hybrid nanoparticle flame retardant as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) reacting vanillic aldehyde, triethylamine and phosphorus oxychloride in a first solvent to obtain a product VP3; (2) enabling dichlorodiphenyl silane, K2CO3 and p-nitrophenol to react in a second solvent to obtain a product DPNSi, dissolving the DPNSi in a third solvent, then adding palladium-carbon super, and carrying out a reduction reaction with an ethanol solution of hydrazine hydrate to obtain DPASi; and (3) adding the VP3 and the DPASi into the ethyl acetate solution in which the titanium dioxide nanoparticles are dispersed, and carrying out condensationpolymerization reaction to obtain the titanium dioxide hybrid nanoparticle flame retardant VPASi containing phosphorus, nitrogen and silicon.

Description

technical field [0001] The invention belongs to the technical field of flame retardant materials, in particular to flame retardants. Background technique [0002] As a material with a wide range of application prospects, polymer materials have the advantages of good physical and chemical stability, easy modification, easy processing, and good optical properties. They are used in automobile manufacturing, electronic devices, coatings, and construction. . However, polymer materials are prone to stress relaxation and creep in terms of strength, and have certain limitations in high temperature performance, poor fire resistance and are very flammable. [0003] It is very necessary for polymer materials to improve their fire and flame retardancy without reducing their mechanical properties. However, in the existing polymer titanium dioxide flame retardant system, there are still problems such as poor dispersion and low flame retardant efficiency. Therefore, it is necessary to i...

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): C08K9/10C08K3/22C08L63/02C08G12/08C07F7/18C07F9/09
CPCC07F7/188C07F7/1892C07F9/091C08G12/08C08K3/22C08K9/10C08K2003/2241C08K2201/003C08K2201/011C08L2201/02C08L63/00
Inventor 戴李宗纪荣彬卢伟彭超华曾珊妮李伟航许一婷
Owner XIAMEN UNIV
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