Flame-retardant polyolefin macromolecule composite material and preparation method thereof

A composite material and polyolefin technology, applied in the field of flame retardant materials, can solve a large amount of hydrogen halide gas, threaten human health, environmental pollution and other problems, achieve high flame retardant performance, high efficiency flame retardant performance, and improve flame retardant effect

Pending Publication Date: 2019-08-27
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the event of a fire, halogenated flame retardants will produce a large amount of smoke and toxic corrosive hydrogen halide gas, which will cause secondary hazards, seriously threaten human health, and cause pollution to the environment

Method used

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  • Flame-retardant polyolefin macromolecule composite material and preparation method thereof
  • Flame-retardant polyolefin macromolecule composite material and preparation method thereof
  • Flame-retardant polyolefin macromolecule composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A flame-retardant polyolefin polymer composite material, made of the following components in mass percentage:

[0034] components Mass percentage (%) polyethylene 75 Organophosphorus nitrogen flame retardant 20 Ammonium polyphosphate 5

[0035] The preparation of the organophosphorus nitrogen flame retardant: at 10°C, in a nitrogen atmosphere, drop 10.8g of phenylphosphonic dichloride into 200ml of acetonitrile and mix evenly, add 10g of pentaerythritol phosphate into 100ml of acetonitrile, and wait for the pentaerythritol After the phosphate ester is completely dissolved, the pentaerythritol phosphate ester solution is gradually added to the phenylphosphonyl dichloride solution. Raise the temperature to 40°C for 1 hour, then raise the temperature to 50°C for 4 hours; after the reaction, lower the temperature to room temperature, and dry in an oven at 60°C for 24 hours to obtain the intermediate; take 16g of the intermediate and dissolv...

Embodiment 2

[0039] A flame-retardant polyolefin polymer composite material, made of the following components in mass percentage:

[0040] components Mass percentage (%) Polypropylene 75 Organophosphorus nitrogen flame retardant 20 boron nitride 5

[0041] The preparation of the organophosphorus nitrogen flame retardant: under the condition of 20°C, under the nitrogen atmosphere, drop 14.3g of phenylphosphonic dichloride into 200ml of acetonitrile and mix well, pass through nitrogen, add 11g of pentaerythritol phosphate to 150ml In acetonitrile, after the pentaerythritol phosphate is completely dissolved, the pentaerythritol phosphate solution is gradually added to the phenylphosphonyl dichloride. Raise the temperature to 45°C for 2 hours, then raise the temperature to 55°C for 5 hours; after the reaction, lower the temperature to room temperature, and dry in an oven at 60°C for 24 hours to obtain the intermediate; take 11g of the intermediate, dissolve th...

Embodiment 3

[0045] A flame-retardant polyolefin polymer composite material, made of the following components in mass percentage:

[0046] components Mass percentage (%) polyethylene 80 Organophosphorus nitrogen flame retardant 17 Ammonium polyphosphate 3

[0047]Preparation of the organophosphorus nitrogen flame retardant: at 15°C, 8.7g of phosphorus oxychloride was dropped into 120ml of acetonitrile in a nitrogen atmosphere and mixed evenly, 4.0g of pentaerythritol phosphate was added into 70ml of acetonitrile, and the pentaerythritol After the phosphate ester is completely dissolved, the pentaerythritol phosphate ester solution is gradually added to the phenylphosphonyl dichloride. The temperature was raised to 50°C for 3 hours at the beginning, and then raised to 60°C for 6 hours; after the reaction, the temperature was lowered to room temperature, and dried in an oven at 60°C for 24 hours to obtain the intermediate; 10 g of the intermediate was taken,...

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Abstract

The invention discloses a flame-retardant polyolefin macromolecule composite material. The material is prepared from 70-94 wt% of polyolefin, 5-25 wt% of an organic phosphorus-nitrogen flame retardantand 0.5-15 wt% of an inorganic flame retardant. The invention further discloses a preparation method of the flame-retardant polyolefin macromolecule composite material. The material has the advantages that the organic phosphorus-nitrogen flame retardant has a good cage-shaped structure, is free of halogen, low in toxicity and efficient in flame retardant property and can be used for replacing a halogen flame-retardant material; the organic phosphorus-nitrogen flame retardant is used for being compounded with the inorganic flame retardant, through a synergistic effect of the two kinds of flameretardants, the interaction of the polyolefin and the flame retardants is greatly improved, the overall flame retardance is improved, and the heat release speed is lowered by 60-80%; the limit oxygenindex is increased by 130-200%, and the material can be widely applied to home appliances and furniture such as cables and switches and other devices which need flame retardance.

Description

[0001] technology neighborhood [0002] The invention relates to the field of flame-retardant materials, in particular to a flame-retardant polyolefin polymer composite material and a preparation method thereof. Background technique [0003] Polyolefin materials are widely used and have the characteristics of low density, low toxicity, easy processing and strong resistance to electrical resistance. However, polyolefin material is a kind of flammable material, which needs to be modified by flame retardancy. The most widely used flame retardants are halogen-containing flame retardants. However, when a fire occurs, halogen-containing flame retardants will produce a large amount of smoke and toxic corrosive hydrogen halide gas, which will cause secondary hazards, seriously threaten human health, and cause pollution to the environment. Research and development of environmentally friendly and efficient new flame retardants to replace halogen-containing flame retardants is an urgen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/32C08K5/5399C08L23/06C08K3/38C08L23/12C08K9/04C08L27/06C08L23/20C08K3/24
CPCC08K3/24C08K3/32C08K3/38C08K5/5399C08K9/04C08K2003/323C08K2003/328C08K2003/385C08L2201/02C08L2201/08C08L2201/22C08L23/06C08L23/12C08L27/06C08L23/20
Inventor 梅毅郑睿知谢德龙罗星廉培超何德东朱远蹠罗勇
Owner KUNMING UNIV OF SCI & TECH
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