Halogen-free intumescent compound flame retardant and application thereof in high-density polyethylene

A technology of high-density polyethylene and compound flame retardant, which is applied in the field of flame retardants, can solve the problems of fast burning speed and large fire hazards, and achieves high flame retardant efficiency, control of molten drop phenomenon, and good compatibility. Effect

Inactive Publication Date: 2015-06-10
苏州安鸿泰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because high-density polyethylene is flammable, the burning speed is fast and a large number of molten droplets are produced, which brings gr

Method used

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  • Halogen-free intumescent compound flame retardant and application thereof in high-density polyethylene

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) In terms of mass percentage, the formulation of the halogen-free intumescent compound flame retardant prepared in this example is as follows: 60% ammonium polyphosphate, 18% DPER, 5% triazine char former, 7% melamine cyanurate , 10% hypophosphite; after weighing the corresponding raw materials according to the above formula, add them into the high mixer and mix them evenly to obtain the halogen-free intumescent compound flame retardant of the present embodiment;

[0021] (2) In terms of mass percentage, the raw material formula for preparing the flame-retardant high-density polyethylene material in this example includes the following components: 58.5% HDPE resin, 10% talcum powder, 30% halogen-free expansion type prepared in step (1) Composite flame retardant, 0.2% antioxidant 168, 0.1% antioxidant 1010, 0.5% calcium stearate, 0.3% silicone powder; weigh the corresponding raw materials according to the above formula, add them to the high mixer and mix evenly, and...

Embodiment 2

[0023] (1) In terms of mass percentage, the formula for preparing the halogen-free intumescent compound flame retardant in this example is as follows: 60% melamine phosphate, 15% PEPA, 8% triazine char former, 7% melamine, 10% coke Phosphate; after weighing the corresponding raw materials according to the above formula, add them into the high mixer and mix them evenly to obtain the halogen-free intumescent compound flame retardant of this embodiment;

[0024] (2) In terms of mass percentage, the raw material formula for preparing the flame-retardant high-density polyethylene material in this example includes the following components: 58.5% HDPE resin, 10% talcum powder, 30% halogen-free expansion type prepared in step (1) Compound flame retardant, 0.3% antioxidant 1010, 0.5% polyethylene wax, 0.3% silicone powder; weigh the corresponding raw materials according to the above formula, add them to the high mixer and mix evenly, and then weigh 0.4% coupling agent KH560 , added...

Embodiment 3

[0026] (1) In terms of mass percentage, the formulation of the halogen-free intumescent compound flame retardant prepared in this example is as follows: 65% ammonium polyphosphate, 25% PEPA, 2% melamine cyanurate, 8% hypophosphite; The above formula weighs the corresponding raw materials and puts them into a high mixer and mixes them evenly to obtain the halogen-free intumescent compound flame retardant of this embodiment;

[0027] (2) In terms of mass percentage, the raw material formula for preparing the flame-retardant high-density polyethylene material in this example includes the following components: 58.5% HDPE resin, 10% talcum powder, 30% halogen-free expansion type prepared in step (1) Composite flame retardant, 0.2% antioxidant 168, 0.1% antioxidant 1010, 0.5% zinc stearate, 0.3% silicone powder; weigh the corresponding raw materials according to the above formula, add them to the high mixer and mix evenly, and then Weigh 0.4% coupling agent KH550, add it into a ...

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Abstract

The invention relates to a halogen-free intumescent compound flame retardant which is prepared by mixing the following components in weight percentage at high speed by means of a high mixing machine: 55-65 wt% of acid source, 18-28% of carbon source, 2-12% of gas source and 5-15% of synergist; the acid source is one or a mixture of ammonium polyphosphate, melamine phosphate and melamine polyphosphate; the carbon source is one or a mixture of dipentaerythritol, pentaerythritol phosphate and triazine char-forming agent; the gas source is melamine or melamine cyanurate or a mixture thereof; and the synergist is one or a mixture of hypophosphite, pyrophosphate, phosphate, silicon dioxide and lanthanum oxide. The halogen-free intumescent compound flame retardant is high in flame retardant efficient, low in cost, good in compatibility with matrixes and simple in preparation process; when the halogen-free intumescent compound flame retardant is applied to LDPE (Low-density Polyethylene), the obtained LDPE material has excellent flame retardant performance and is capable of maintaining mechanical property and effectively controlling molten drops.

Description

technical field [0001] The invention belongs to the technical field of flame retardants, and in particular relates to a halogen-free expansion compound flame retardant and its application in high-density polyethylene. Background technique [0002] At present, the flame retardants used in the field of plastics are mainly additive flame retardants, that is, flame-retardant polymer materials are prepared by melt extrusion and blending of additive flame retardants and resin matrix. Commonly used additive flame retardants are as follows: metal hydroxides, including magnesium hydroxide, aluminum hydroxide, etc.; halogen flame retardants, mainly composed of halogen antimony; inorganic phosphorus flame retardants, mainly red Phosphorus; organophosphorus flame retardants, such as phenoxycyclophosphazene, alkyl phosphate, etc.; another type is intumescent flame retardants. The disadvantages of metal hydroxide flame retardants are low flame retardant efficiency, large amount of additi...

Claims

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Application Information

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IPC IPC(8): C08K13/02C08K3/32C08K5/3492C08K3/36C08K3/22C08K5/521C08L23/06C08K3/34C08K5/098
Inventor 李高涛台启龙朱长江
Owner 苏州安鸿泰新材料有限公司
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