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Active amino cross-linked phosphazene derivative and preparation method and application thereof, and flame-retardant epoxy resin

An epoxy resin and cross-linking technology, which is applied in the field of phosphazene derivatives, can solve the problems of poor compatibility of epoxy resin substrates, etc., and achieve good flame retardancy and comprehensive mechanical properties, high char formation, and high limit Effect of Oxygen Index

Active Publication Date: 2018-11-30
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes how an organic compound called Phosponium (Phenylamine) was found that had some activity when mixed into certain types of plastic material like polyurethane or vinyl chloride polymers. These modifications made them more compatible with different substances than they were previously possible due to their chemical structure. They could help improve its effectiveness for various applications such as fire protection systems.

Problems solved by technology

This patents describes various methods or techniques for improving the performance of epozoresponcin flamesheatresistant coatings such as phenolsulfonamides and cyclohexadienestyrene bifunctional compounds containing nitrilobispidithiazoquinoline moieties. These chemical structures enhances the flammability behavior of the coating while also reducing environmental pollution caused by halogenated organics. Additionally, some existing flame resistors contain triarylamines called pyridinetrils, which may increase volatility when combined into epoxy compositions without affecting their physical properties like tensile strength.

Method used

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  • Active amino cross-linked phosphazene derivative and preparation method and application thereof, and flame-retardant epoxy resin
  • Active amino cross-linked phosphazene derivative and preparation method and application thereof, and flame-retardant epoxy resin
  • Active amino cross-linked phosphazene derivative and preparation method and application thereof, and flame-retardant epoxy resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Add 1.7383g of hexachlorocyclotriphosphazene (HCCP) to 30ml of dioxane, and ultrasonically disperse at room temperature to obtain a uniform solution; take 3.876g of N-aminoethylpiperazine (AEP) and 3.0357g of tris Ethylamine (TEA) was added to a three-necked flask filled with 20ml of dioxane; the molar ratio of HCCP and AEP was controlled to be 1:6. The solution of hexachlorocyclotriphosphazene was dropped into a three-necked flask filled with triethylamine and N-aminoethylpiperazine using a constant pressure dropping funnel, and reacted ultrasonically at 40°C for 3.5h. After the reaction is finished, after cooling to room temperature, the product is centrifuged, washed with dioxane and deionized water three times in sequence, and the obtained solid product is placed in a blast drying oven at a drying temperature of 120°C. After drying for 12 hours, an active amino cross-linked phosphazene derivative was obtained.

[0049] Infrared, NMR, and X-ray photoelectron spectro...

Embodiment 2

[0054] Add 1.8g of hexachlorocyclotriphosphazene (HCCP) into 30ml of dioxane, and ultrasonically disperse at room temperature to obtain a uniform solution; take 4.011g of N-aminoethylpiperazine (AEP) and 3.143g of tris Ethylamine (TEA) was added to a three-necked flask filled with 20ml of dioxane; the molar ratio of HCCP and AEP was controlled to be 1:6. The solution of hexachlorocyclotriphosphazene was dropped into a three-necked flask filled with triethylamine and N-aminoethylpiperazine using a constant pressure dropping funnel, and reacted ultrasonically at 35° C. for 5 h. After the reaction was completed, after cooling to room temperature, the product was centrifuged, washed three times with dioxane and deionized water, and the obtained solid product was placed in a blast drying oven at a drying temperature of 100°C. Dry for 24 hours to obtain active amino cross-linked phosphazene derivatives.

Embodiment 3

[0056] Add 1.7383g of hexachlorocyclotriphosphazene (HCCP) into 30ml of dioxane, and ultrasonically disperse at room temperature to obtain a uniform solution; take 2.584g of N-aminoethylpiperazine (AEP) and 2.0238g of tris Ethylamine (TEA) was added to a three-necked flask filled with 20ml of dioxane; the molar ratio of HCCP and AEP was controlled to be 1:4. The solution of hexachlorocyclotriphosphazene was dripped into a three-necked flask filled with triethylamine and N-aminoethylpiperazine using a constant pressure dropping funnel, and reacted ultrasonically at 30° C. for 5 h. After the reaction was completed, after cooling to room temperature, the product was centrifuged, washed three times with dioxane and deionized water, and the obtained solid product was placed in a blast drying oven at a drying temperature of 100°C. Dry for 24 hours to obtain active amino cross-linked phosphazene derivatives.

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Abstract

The invention provides an active amino cross-linked phosphazene derivative and a preparation method and an application thereof, and a flame-retardant epoxy resin. The active amino cross-linked phosphazene derivative is prepared through the following steps: dropwise adding a hexachlorocyclotriphosphazene solution into a mixed solution of triethylamine and nitrogen-aminoethylpiperazine, and after areaction is completed, carrying out solid-liquid separation, washing and drying. The flame-retardant epoxy resin is prepared through the following steps: adding the active amino cross-linked phosphazene derivative into epoxy resin, and carrying out curing. The preparation method provided by the invention has simple process and mild reaction conditions; the active amino cross-linked phosphazene derivative prepared by using the preparation method provided by the invention can be applied as a flame retardant, has good compatibility with substrates like the epoxy resin, and has high carbon-formingproperties, strong thermal stability, good heat-insulating performance and prominent flame retardancy; and the flame-retardant epoxy resin prepared by adding the active amino cross-linked phosphazenederivative into the epoxy resin has good flame retardancy and comprehensive mechanical properties and extensive industrial application prospects.

Description

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Claims

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Application Information

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Owner HEBEI UNIVERSITY
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