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Metal ion flame retardant complex having Schiff base structure, and preparation method thereof

A technology of metal ions and Schiff bases, applied in the field of reactive flame retardants, can solve problems such as secondary damage to human health, and achieve the effect of simple preparation process

Active Publication Date: 2019-11-19
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not difficult to see that this type of flame retardant contains brominated flame retardants, which will release toxic hydrogen bromide gas during use, which will cause serious secondary damage to human health.

Method used

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  • Metal ion flame retardant complex having Schiff base structure, and preparation method thereof
  • Metal ion flame retardant complex having Schiff base structure, and preparation method thereof
  • Metal ion flame retardant complex having Schiff base structure, and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0037] Embodiment 1: Metal ion flame retardant complex with Schiff base structure

[0038] The structural formula is as follows

[0039] in,

[0040] Among them, M is a metal ion part, specifically Cu and Fe.

Embodiment 2

[0041] Embodiment 2: Metal ion flame retardant complex with Schiff base structure

[0042] The structural formula is as follows

[0043] in,

[0044] Among them, M is a metal ion part, specifically Ni and Zn.

Embodiment 3

[0046] Add 2.0mol 2,4-dihydroxybenzaldehyde, ethanol, and 1.0mol ethylenediamine into a reaction vessel equipped with stirring, heating, and temperature control devices. After the addition is complete, stir and react at 30°C for 12h under nitrogen protection; the yellow precipitate Filtrate under reduced pressure, wash with ethanol, and dry in a vacuum oven to obtain the intermediate product N,N'-bis(2,4-dihydroxyhydrinite)-1,2-ethylenediamine (Salen-H6); Add 1.0mol Salen-H6, 2.3mol triethylamine and dichloromethane into the reaction vessel of the stirring, heating and temperature control device, add 2.3mol diphenyl chlorophosphate (DPCP) dropwise into the system at 0°C, and add the After completion, stir and react at 30°C for 6 h under the protection of nitrogen; evaporate dichloromethane to dryness under reduced pressure, extract 3 times with dichloromethane, wash the organic phase with deionized water 3 times, and evaporate dichloromethane to dryness under reduced pressure t...

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Abstract

The invention discloses a metal ion flame retardant complex having a Schiff base structure, and a preparation method thereof, and mainly relates to the field of reactive flame retardants, wherein thestructural formula is defined in the specification, and R is defined in the specification. According to the present invention, a series of flame retardant complexes Salen-DPCP-M are formed by complexing Salen-H6-2DCP and metals, wherein the phosphorus-containing organic fragments can provide gas phase flame retardant effect during the combustion of polymer materials, and the Schiff base and the metal respectively provide the cross-linking and catalytic carbon formation condensed phase flame retardant effect during the combustion.

Description

technical field [0001] The invention relates to the technical field of reactive flame retardants, in particular to a metal ion flame retardant complex with a Schiff base structure and a preparation method. Background technique [0002] The Schiff base structure flame retardant can endow the polymer material with anti-droplet performance, and reduce the personal and property losses caused by secondary combustion when the polymer material is in danger of fire. Patent CN201510817559.8 discloses a high-temperature self-crosslinking flame-retardant anti-droplet copolyester based on Schiff base structure. It is found that chemical crosslinking occurs at high temperature, which increases the melt viscosity of the copolyester, thus endowing the polyester with good flame retardant and anti-droplet properties. [0003] Patent CN201610825104 provides a flame-retardant wire and cable material and its preparation method. The flame-retardant wire and cable material includes a flame-retar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/00C08L63/00C07F9/12
CPCC07F9/12C08K5/0091C08L63/00
Inventor 田力张亚斌杨晶雯崔锦峰郭军红郭永亮包雪梅张秀君慕波周应萍何婷香王露蓉王念念
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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