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Flame retardant as well as preparation method and application thereof

A flame retardant and catalyst technology, applied in the field of flame retardants and their preparation, can solve the problems of large smoke release, high heat release rate, poor flame retardancy, etc., to improve char formation and compactness, and improve flame retardancy Performance, the effect of improving the flame retardant effect

Pending Publication Date: 2022-07-29
JIAHUA CHEM TECH DEV SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects of large smoke release, high heat release rate and poor flame retardancy when the flame retardant in the prior art is applied to silicone rubber, thereby providing a flame retardant and Its preparation method and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment provides a flame retardant. The raw materials include 20g of an esterification product of 1,4-benzenedimethanol and DDP, 0.5g of expandable graphite, 10g of chitosan and 10g of melamine. Wherein, the initial expansion temperature of the expandable graphite is 150°C, and the expansion degree is 300.

[0057] This embodiment also provides a preparation method of the above-mentioned flame retardant, comprising:

[0058] The esterification product, expandable graphite, chitosan and melamine are added to the ball mill according to the above-mentioned qualities, and are stirred at a rotating speed of 100 r / min to obtain a flame retardant.

[0059] Wherein, the preparation method of the esterification product of 1,4-benzenedimethanol and DDP includes adding 100g 1,4-benzenedimethanol, 150g DDP, 2g antimony acetate and 0.15g 1010 antioxidant into a four-necked flask, heating to 150 ±3°C, normal pressure reaction, the first reaction is finished when all solids a...

Embodiment 2

[0063] This embodiment provides a flame retardant, and the raw materials include 25g of the esterification product of 1,4-benzenedimethanol and DDP, 1g of expandable graphite, 13g of chitosan and 13g of melamine. Wherein, the initial expansion temperature of the expandable graphite is 150°C, and the expansion degree is 300.

[0064] This embodiment also provides a preparation method of the above-mentioned flame retardant, comprising:

[0065] The esterification product, expandable graphite, chitosan and melamine were added to the ball mill according to the above-mentioned qualities, and were stirred at a rotating speed of 200 r / min to obtain a flame retardant.

[0066] Wherein, the preparation method of the esterification product of 1,4-benzenedimethanol and DDP includes adding 110g 1,4-benzenedimethanol, 220g DDP, 3.3g antimony acetate and 0.33g1010 antioxidant into a four-necked flask, heating to 167±3℃, normal pressure reaction, the first reaction is finished when all the ...

Embodiment 3

[0070] This embodiment provides a flame retardant, and the raw materials include 30g of an esterification product of 1,4-benzenedimethanol and DDP, 1.5g of expandable graphite, 15g of chitosan and 15g of melamine. Wherein, the initial expansion temperature of the expandable graphite is 150°C, and the expansion degree is 300.

[0071] This embodiment also provides a preparation method of the above-mentioned flame retardant, comprising:

[0072] The esterification product, expandable graphite, chitosan and melamine are added to the ball mill according to the above-mentioned qualities, and are stirred at a rotating speed of 300 r / min to obtain a flame retardant.

[0073] Wherein, the preparation method of the esterification product of 1,4-benzenedimethanol and DDP comprises, adding 120g 1,4-benzenedimethanol, 300g DDP, 4.8g antimony acetate and 0.6g1010 antioxidant into a four-necked flask, heating to 170±3℃, normal pressure reaction, when all the solids are converted into clear...

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Abstract

The invention belongs to the technical field of flame-retardant material preparation, and particularly relates to a flame retardant as well as a preparation method and application thereof. The flame retardant comprises the following raw materials: an acid source, a carbon source and a gas source, and the acid source is an esterification product of dihydric alcohol containing a benzene ring and [(6-oxo-6H-dibenzo [C, E] [1, 2] oxophosphohexane-6-yl) methyl] succinic acid; the flame retardant can reduce the smoke release amount and the heat release rate and improve the flame retardant property. The acid source in the flame retardant has both a phosphorus gas-phase flame-retardant mechanism and a solidification-phase flame-retardant mechanism, and the content of benzene rings in the acid source is high, so that the compactness of a carbon layer can be improved. When the flame retardant is used for silicone rubber, the smoke release amount and the heat release rate can be reduced, and the flame retardant effect can be improved.

Description

technical field [0001] The invention belongs to the technical field of flame retardant material preparation, and particularly relates to a flame retardant and a preparation method and application thereof. Background technique [0002] Flame retardant is a kind of auxiliary agent that imparts flame retardancy or non-combustibility to materials, and is mainly designed for polymer materials. There are many types of flame retardants, which can be roughly divided into phosphorus-based, nitrogen-based, halogen, silicon-based, inorganic, intumescent and other types of flame retardants. Among them, halogen flame retardants are now banned because they produce substances that are toxic to people's bodies and the surrounding environment when burned. Intumescent flame retardant is a new type of composite flame retardant that has attracted wide attention in the field of flame retardant in my country in recent years. It has a unique flame retardant mechanism and the characteristics of h...

Claims

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Application Information

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IPC IPC(8): C08K5/5313C08K9/00C08K3/04C08L5/08C08K5/3492C08L1/02C08L3/02C08K5/21C08L83/04
CPCC08K5/5313C08K9/00C08K3/04C08L5/08C08K5/34922C08L1/02C08L3/02C08K5/21C08K3/041C08L83/04C08L2201/02
Inventor 柳诚李玉博
Owner JIAHUA CHEM TECH DEV SHANGHAI CO LTD
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