Halogen-free intumescent flame retardant and preparation method thereof

A technology of intumescent flame retardant and synergistic flame retardant, which is applied in the field of flame retardants, can solve the problems of large amount of flame retardant added and unsatisfactory flame retardant effect, achieve good flame retardant effect and prevent the spread of flames and spread, reduce the effect of toxic gases and fumes

Inactive Publication Date: 2019-03-01
DONGGUAN CZY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing intumescent flame retardants can show low smoke, non-toxic, good flame retardant effect and certain droplet resistance performance, but there are still some aspects such as the flame retardant effect is not ideal and the amount of flame retardant added is relatively large. The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A halogen-free intumescent flame retardant comprising the following raw materials in parts by weight:

[0043]20 parts of melamine derivatives

[0044] Coated ammonium polyphosphate 20 parts

[0045] Triazine derivative 10 parts

[0046] Pentaerythritol Phosphate 10 parts

[0047] Trishydroxyethylisocyanurate 5 parts

[0048] Organosilsesquioxane 6 parts

[0049] Nano silicon dioxide 4 parts

[0050] Synergistic flame retardant 3 parts

[0051] Smoke suppressant 2 parts

[0052] Charging accelerator 2 parts

[0053] 1 part coupling agent

[0054] Antioxidant 1 part

[0055] Lubricant 0.5 part.

[0056] The melamine derivative is composed of pentaerythritol diphosphate melamine salt, 2,4,8,10-tetraoxo-3,9-diphosphospiro[5,5]undecane-3,9-dioxo-3 , 9-dimelamine salt and (2,6,7-trioxo-1-phosphorus-bicyclo[2,2,2]octane-1-oxymethyl)phosphate melamine salt in a weight ratio of 2:1:1 composition of the mixture.

[0057] The coated ammonium polyphosphate is a mixtur...

Embodiment 2

[0068] A halogen-free intumescent flame retardant comprising the following raw materials in parts by weight:

[0069] 25 parts of melamine derivative

[0070] Coated ammonium polyphosphate 25 parts

[0071] Triazine derivatives 15 parts

[0072] Pentaerythritol Phosphate 12 parts

[0073] Trishydroxyethylisocyanurate 8 parts

[0074] Organosilsesquioxane 7 parts

[0075] Nano silicon dioxide 5 parts

[0076] Synergistic flame retardant 4 parts

[0077] Smoke suppressant 3 parts

[0078] Charging accelerator 2.5 parts

[0079] 1.5 parts of coupling agent

[0080] Antioxidant 1.2 parts

[0081] Lubricant 0.8 parts.

[0082] The melamine derivative is composed of pentaerythritol diphosphate melamine salt, 2,4,8,10-tetraoxo-3,9-diphosphospiro[5,5]undecane-3,9-dioxo-3 , 9-dimelamine salt and (2,6,7-trioxo-1-phosphorus-bicyclo[2,2,2]octane-1-oxymethyl)phosphate melamine salt in a weight ratio of 2.5:1-. 2:1 composition mixture.

[0083] The coated ammonium polyphosphate...

Embodiment 3

[0094] A halogen-free intumescent flame retardant comprising the following raw materials in parts by weight:

[0095] 30 parts of melamine derivative

[0096] Coated ammonium polyphosphate 230 parts

[0097] Triazine derivatives 20 parts

[0098] Pentaerythritol Phosphate 15 parts

[0099] Trishydroxyethyl isocyanurate 10 parts

[0100] Organosilsesquioxane 8 parts

[0101] Nano silicon dioxide 6 parts

[0102] Synergistic flame retardant 5 parts

[0103] Smoke suppressant 4 parts

[0104] Charging accelerator 3 parts

[0105] 2 parts of coupling agent

[0106] Antioxidant 1.5 parts

[0107] Lubricant 1 part.

[0108]The melamine derivative is composed of pentaerythritol diphosphate melamine salt, 2,4,8,10-tetraoxo-3,9-diphosphospiro[5,5]undecane-3,9-dioxo-3 , 9-dimelamine salt and (2,6,7-trioxo-1-phosphorus-bicyclo[2,2,2]octane-1-oxymethyl)phosphate melamine salt in a weight ratio of 3:1.5:1 composition of the mixture.

[0109] The coated ammonium polyphosphate i...

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Abstract

The invention relates to the technical field of flame retardants, in particular to a halogen-free intumescent flame retardant and a preparation method thereof. The halogen-free intumescent flame retardant is prepared from the following raw materials: a melamine derivative, coated ammonium polyphosphate, a triazine derivative, pentaerythritol phosphate, trihydroxyethyl isocyanurate, organic silsesquioxane, nano-silica, a synergistic flame retardant, a smoke suppression agent, a char-forming accelerant, a coupling agent, an antioxidant and a lubricating agent. The intumescent flame retardant hasa good flame-retarding effect and less additive amount, the impact on the physical and mechanical properties of plastics can be reduced to the greatest extent, and the advantages of non-halogen, low-smoke, low-toxicity, anti-melting dropping and non-corrosive gas are achieved; and a dense porous foam carbon layer is formed on the surface of material during combustion, the further degradation of inner layer high polymers and the release of combustible material to the surface can be prevented, and the transfer of a heat source to the high polymers can be prevented and an oxygen source is isolated, so that the spread and propagation of flames are prevented.

Description

technical field [0001] The invention relates to the technical field of flame retardants, in particular to a halogen-free intumescent flame retardant and a preparation method thereof. Background technique [0002] Intumescent flame retardant is a new type of halogen-free flame retardant. It is especially suitable for The flame retardancy of polymers, therefore, intumescent flame retardants are receiving more and more attention in flame retardancy research at home and abroad. [0003] The intumescent flame retardant system mainly contains three types of components: acid source, carbon source and foam source. In the traditional intumescent flame retardant system, it is generally composed of ammonium polyphosphate, polyols and melamine composite components. Therefore, it is generally believed that the flame retardant mechanism of the intumescent system is: ammonium polyphosphate is decomposed by heat, and the formation has a strong dehydration effect. Phosphoric acid and pyrop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L83/04C08L79/04C08L77/02C08L61/06C08K13/06C08K9/10C08K3/32C08K9/06C08K3/36C08K3/38C08K3/22C08K5/521C08K5/053
CPCC08K3/22C08K3/2279C08K3/32C08K3/36C08K3/38C08K5/053C08K5/521C08K9/06C08K9/10C08K13/06C08K2003/2224C08K2003/2227C08K2003/323C08K2003/387C08K2201/011C08L61/06C08L67/02C08L77/02C08L79/04C08L83/04C08L2201/02C08L2201/22
Inventor 黄而凑
Owner DONGGUAN CZY CHEM CO LTD
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