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Intumescent flame retardant and preparation method thereof

A technology of intumescent flame retardant and flame retardant synergist, which is applied in the field of intumescent flame retardant materials, can solve the problems of insufficient thermal stability and poor char formation, and achieve the goal of reducing heat release rate, burning speed and mobility Effect

Inactive Publication Date: 2018-03-27
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides an intumescent flame retardant and a preparation method thereof, which can effectively solve the problems of poor char formation and insufficient thermal stability of the existing intumescent flame retardants

Method used

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  • Intumescent flame retardant and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] An intumescent flame retardant comprising the following components in parts by weight:

[0024] 10 parts of sodium stearate, 20 parts of glucomannan, 80 parts of triaryl phosphate, 20 parts of phenolic resin, 20 parts of aminomethylphosphonic acid, 10 parts of tetravinyltetramethylcyclotetrasiloxane, silicon oxide 10 parts, baicalin 5 parts, cinnamate 2 parts, coumarin ester 2 parts and triphenyl phosphite 5 parts.

[0025] The preparation method of above-mentioned intumescent flame retardant comprises the following steps:

[0026] Mix triaryl phosphate ester and phenolic resin according to the formula, stir evenly, then add aminomethylphosphonic acid, tetravinyltetramethylcyclotetrasiloxane, silicon oxide and triphenyl phosphite, continue stirring, reaction 1~ 2h, and then add sodium stearate, glucomannan, baicalin, cinnamate and coumarin ester to prepare an intumescent flame retardant.

Embodiment 2

[0028] An intumescent flame retardant comprising the following components in parts by weight:

[0029] 18 parts of lauric acid soap, 26 parts of glucomannan, 78 parts of triaryl phosphate, 20 parts of phenolic resin, 20 parts of aminomethylphosphonic acid, 8 parts of tetravinyltetramethylcyclotetrasiloxane, zinc borate 12 parts, 5 parts of baicalin, 3 parts of cinnamate, 3 parts of coumarin ester and 8 parts of diphenylisooctyl phosphite.

[0030] The preparation method of above-mentioned intumescent flame retardant comprises the following steps:

[0031] Mix triaryl phosphate and phenolic resin according to the formula, stir evenly, then add aminomethylphosphonic acid, tetravinyltetramethylcyclotetrasiloxane, zinc borate and diphenylisooctyl phosphite, continue stirring, and react 1 to 2 hours, then add lauric acid soap, glucomannan, baicalin, cinnamate and coumarin ester to obtain an intumescent flame retardant.

Embodiment 3

[0033] An intumescent flame retardant comprising the following components in parts by weight:

[0034] 10 parts of lauric acid soap, 30 parts of glucomannan, 60 parts of triaryl phosphate, 30 parts of phenolic resin, 20 parts of aminomethylphosphonic acid, 10 parts of tetravinyltetramethylcyclotetrasiloxane, zinc borate 15 parts, 3 parts of baicalin, 5 parts of cinnamate, 5 parts of coumarin ester and 10 parts of diphenylisooctyl phosphite.

[0035] The preparation method of above-mentioned intumescent flame retardant comprises the following steps:

[0036] Mix triaryl phosphate and phenolic resin according to the formula, stir evenly, then add aminomethylphosphonic acid, tetravinyltetramethylcyclotetrasiloxane, zinc borate and diphenylisooctyl phosphite, continue stirring, and react 1 to 2 hours, then add lauric acid soap, glucomannan, baicalin, cinnamate and coumarin ester to obtain an intumescent flame retardant.

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PUM

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Abstract

The invention discloses an intumescent flame retardant and a preparation method thereof. The flame retardant is prepared from the following components in parts by weight: 10 to 20 parts of anionic emulsifier, 20 to 30 parts of gluomannan, 60 to 80 parts of tri(4-isopropylphenyl) phosphate, 20 to 30 parts of phenolic resin, 20 to 30 parts of aminomethyl phosphonic acid, 5 to 10 parts of coupling agent, 10 to 15 parts of flame retardant synergist, 2 to 5 parts of baicalin, 2 to 5 parts of cinnamate, 2 to 5 parts of scoumacetate and 5 to 10 parts of antioxidant. The preparation method comprises the following steps: mixing the tri(4-isopropylphenyl) phosphate with the phenolic resin according to the formula, uniformly stirring, then adding the aminomethyl phosphonic acid, a coupling agent, flame retardant synergist and antioxidant, continuously stirring, reacting for 1 to 2h, and then adding the anionic emulsifier, gluomannan, baicalin, cinnamate, and scoumacetate to obtain the intumescentflame retardant. The intumescent flame retardant prepared by the invention has the advantages of strong thermal stability, good flame retardant effect and low environmental damage.

Description

technical field [0001] The invention belongs to the field of intumescent flame retardant materials, and in particular relates to an intumescent flame retardant and a preparation method thereof. Background technique [0002] Intumescent flame retardant (IFR) is an environmentally friendly green flame retardant that does not contain halogen and does not use antimony oxide as a synergist. When the plastic containing intumescent flame retardant is burned, a carbon foam layer will be formed on the surface, which has the functions of heat insulation, oxygen insulation, smoke suppression, and anti-drip. The generation of corrosive gas is in line with the research and development direction of flame retardants in the future, and has become one of the most active flame retardant research fields at home and abroad. [0003] An ideal intumescent flame retardant should have the characteristics of high efficiency, low toxicity, good compatibility with flame retardant materials, not easy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/02C08L61/06C08K13/02C08K5/523C08K3/36C08K5/1545C08K5/101C08K3/38
CPCC08L5/02C08K2003/387C08K2201/014C08L61/06C08L2201/02C08L2201/08C08K13/02C08K5/523C08K3/36C08K5/1545C08K5/101C08K3/38
Inventor 陈宝书赵天宝李正秋廖力
Owner XIHUA UNIV
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