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Fireproof functionalized TiO2 grafted acrylic resin as well as preparation method and application thereof

A grafted acrylic, functionalized technology, applied in the direction of fireproof coatings, coatings, etc., can solve the problems of fireproofing and poor fireproofing, limiting industrial development and application, etc.

Pending Publication Date: 2022-05-13
徐州盛安化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Acrylic resin has good weather resistance, color retention, decoration, and low toxicity and environmental friendliness. It can be used as paint, coating, etc., and is widely used in furniture decoration, automobile manufacturing, etc., but the fire resistance and fire resistance of traditional acrylic resin coatings Poor performance, which limits industrial development and application. In recent years, modified acrylic resin coatings have improved the performance of fire prevention and fire resistance. Nano-titanium dioxide is a common nano-filler, which has great influence on the thermal stability and mechanical strength of polymer materials. Great improvement, the patent CN112521660A "a phosphorus-nitrogen-silicon-containing titanium dioxide hybrid nanoparticle flame retardant and its preparation method and application" discloses the hybridization of phosphorus-nitrogen-silicon-containing flame-retardant small molecules with nano-titanium dioxide as a flame retardant Flame retardant, through the flame retardant and fireproof performance of epoxy resin, so the phosphorus-containing flame retardant can be used to modify the surface of nano-titanium dioxide, as a composite flame retardant to improve the fire resistance and fireproof performance of acrylic resin coatings

Method used

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  • Fireproof functionalized TiO2 grafted acrylic resin as well as preparation method and application thereof
  • Fireproof functionalized TiO2 grafted acrylic resin as well as preparation method and application thereof
  • Fireproof functionalized TiO2 grafted acrylic resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Will TiO 2 Nanotubes dispersed into N,N-dimethylformamide, 4,4'-diphenylmethane diisocyanate was added, reacted at 60 °C for 6h to give isocyanated TiO 2 Nanotubes.

[0034] (2) 100 parts (mass parts) isocyanate TiO 2 Nanotubes dispersed into toluene or xylene in any of the solvents, and then added 25 parts of resorcinol spirocylic phosphate and acetonitrile co-solvent, stirred and dissolved after 1.5 parts of catalyst dibutyltin dilaurate, in a nitrogen atmosphere, heated to 60 ° C, reaction 10h, distilled under reduced pressure after the reaction, sequentially using dichloromethane and ethanol washing products, to give phenol spirocylic acid esterified TiO 2 Nanotubes.

[0035] (3) 100 parts (mass parts) of phenol spirocyclic phosphate esterification TiO 2Nanotubes dispersed into acetonitrile solvent, and then added 15 parts of acryloyl chloride, 10 parts of triethylamine and co-solvent tetrahydrofuran, reacted at 5 °C for 12h, after the reaction distillation under r...

Embodiment 2

[0039] (1) Will TiO 2 Nanotubes were dispersed into N,N-dimethylformamide, 4,4'-diphenylmethane diisocyanate was added, and the reaction was given at 70 °C for 6 h to give isocyanated TiO 2 Nanotubes.

[0040] (2) 100 parts (mass parts) isocyanate TiO 2 Nanotubes dispersed to toluene or xylene in any of the solvents, and then added 40 parts of resorcinol spirocylic phosphate and acetonitrile co-solvent, stirred and dissolved after the drops added 2.5 parts of catalyst dibutyltin dilaurate, in a nitrogen atmosphere, heated to 75 ° C, reaction 10h, distilled under reduced pressure after the reaction, successively using dichloromethane and ethanol washing products, to give phenol spirocylic acid esterified TiO 2 Nanotubes.

[0041] (3) 100 parts (mass parts) of phenol spirocyclic phosphate esterification TiO 2 Nanotubes dispersed into acetonitrile solvent, and then added 25 parts of acryloyl chloride, 18 parts of triethylamine and co-solvent tetrahydrofuran, reacted at 5 ° C for 18h,...

Embodiment 3

[0045] (1) Will TiO 2 Nanotubes were dispersed into N,N-dimethylformamide, 4,4'-diphenylmethane diisocyanate was added, reacted at 80 °C for 8h to give isocyanated TiO 2 Nanotubes.

[0046] (2) 100 parts (mass parts) isocyanate TiO 2 Nanotubes dispersed into toluene or xylene in any of the solvents, and then added 60 parts of resorcinol spirocylic phosphate and acetonitrile co-solvent, stirred and dissolved and then added 4.5 parts of catalyst dibutyltin dilaurate, in a nitrogen atmosphere, heated to 75 ° C, reaction 12h, distilled under reduced pressure after the reaction, successively using dichloromethane and ethanol washing products, to obtain phenol spirocylic phosphate esterified TiO 2 Nanotubes.

[0047] (3) 100 parts (mass parts) of phenol spirocyclic phosphate esterification TiO 2 Nanotubes dispersed into acetonitrile solvent, and then added 35 parts of acryloyl chloride, 28 parts of triethylamine and co-solvent tetrahydrofuran, in 10 ° C reaction 18h, after the reaction ...

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Abstract

The invention relates to the technical field of fireproof coatings, and discloses a fireproof functionalized TiO2 grafted acrylic resin, spirocyclic phosphate ester between TiO2 nanotubes and acrylic resin molecular chains is used as a flame-retardant small molecule, oxygen-containing phosphoric acid generated by high-temperature combustion decomposition has strong water absorption, an acrylic resin coating can be promoted to be dehydrated and carbonized to form a carbon layer, and the flame-retardant functional TiO2 grafted acrylic resin has a good flame-retardant effect. TiO2 nanotubes are uniformly distributed in a carbon layer to form nano support sites, so that the stability and compactness of a carbon layer framework are improved, a compact and continuous carbon barrier layer is formed, the residual carbon rate after combustion is improved, and better smoke suppression and oxygen barrier effects are achieved, so that the heat release rate of combustion is remarkably reduced, and the combustion efficiency is improved. Under the synergistic effect, the functionalized TiO2 grafted acrylic resin coating has excellent fireproof and fire-resistant performance.

Description

Technical field [0001] The present invention relates to the technical field of fireproof coatings, specifically a functional TiO fireproof 2 Graft acrylic resin and preparation method and application. Background [0002] Fireproof coating is a functional coating, can inhibit the spread and spread of flame, change the surface of the material combustion characteristics, improve the fire resistance and fire resistance of the material, mainly wood fireproof coating, cable fireproof coating, decorative fireproof coating, etc., by is the flame retardant and polymer coating, such as acrylic resin coating, epoxy resin and other composite fireproof coatings. [0003] Acrylic resin has good weather resistance, color retention, decoration, and low toxicity environmental friendliness, can be used as paints, coatings, etc., widely used in furniture decoration, automobile manufacturing, etc., but the traditional acrylic resin coating fire and fire resistance is poor, limiting industrial devel...

Claims

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Application Information

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IPC IPC(8): C08F292/00C08F220/14C08F220/18C08F220/06C09D151/10C09D5/18
CPCC08F292/00C09D151/10C09D5/18C08F220/14C08F220/1804C08F220/06C08F2500/26
Inventor 车东江李彩青刘晋丽
Owner 徐州盛安化工科技有限公司
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