Flame-retarding plastic and preparation method thereof

A technology for flame-retardant plastics and raw materials, which is applied in the field of flame-retardant plastics and their preparation, can solve the problems of flame-retardant plastics being easily melted and burned by heat, and achieves the effects of high mechanical strength, improved flame-retardant performance, and good flame-retardant properties.

Inactive Publication Date: 2016-06-15
宁波康氏塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing flame-retardant plastics that are easy to be heated, melted and burned, the present invention provides a flame-retardant plastic with good heat resistance and a preparation method thereof

Method used

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  • Flame-retarding plastic and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0013] A flame-retardant plastic made from the following raw materials in parts by weight: 100 parts of polypropylene, 5 parts of antimony trioxide, 3 parts of magnesium hydroxide, 4 parts of decabromodiphenyl ether, and 3 parts of octabromoether , 5 parts of stearic acid, 8 parts of polypropylene grafted maleic anhydride, 20 parts of mica powder.

[0014] The preparation method of the above-mentioned flame-retardant plastics, the preparation method is:

[0015] a. Put the raw materials of each component into the mixer in proportion and mix them evenly;

[0016] b. Add the mixture obtained in a to a twin-screw extruder, control the temperature of the extruder and the die within the range of 200°C, and the speed of the main engine at 140 rpm, and cool the extrudate to ambient temperature;

[0017] c. Send the cooled extrudate in step b to a granulator to obtain finished flame-retardant plastic granules.

Embodiment 2

[0019] A flame-retardant plastic made from the following raw materials in parts by weight: 100 parts of polypropylene, 13 parts of antimony trioxide, 7 parts of magnesium hydroxide, 4 parts of decabromodiphenyl ether, and 3 parts of octabromoether , 8 parts of stearic acid, 7 parts of polypropylene grafted maleic anhydride, 25 parts of mica powder.

[0020] The preparation method of the above-mentioned flame-retardant plastics, the preparation method is:

[0021] a. Put the raw materials of each component into the mixer in proportion and mix them evenly;

[0022] b. Add the mixture obtained in a to a twin-screw extruder, control the temperature of the extruder and the die within the range of 180°C, and the speed of the main engine at 140 rpm, and cool the extrudate to ambient temperature;

[0023] c. Send the cooled extrudate in step b to a granulator to obtain finished flame-retardant plastic granules.

[0024] The flame-retardant plastics obtained from the above examples h...

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PUM

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Abstract

A flame-retarding plastic and a preparation method thereof. The flame-retarding plastic is composed following components, by weight, 100 parts of polypropylene, 5-15 parts of antimonous oxide, 3-8 parts of magnesium hydroxide, 2-6 parts of decabromodiphenyl ether, 3-8 parts of octabromo-ether, 5-8 parts of stearic acid, 5-10 parts of polypropylene grafted maleic anhydride and 20-30 parts of mica powder. The mica powder, which is good in flame-retarding performance and high in mechanical strength, is mixed with the polypropylene with addition of various inorganic and organic frame retardants, so that the polypropylene plastic is greatly improved in flame-retarding performance.

Description

technical field [0001] The invention relates to a flame-retardant plastic and a preparation method thereof. Background technique [0002] Polypropylene is a kind of thermoplastic resin prepared by polymerization of propylene. It is non-toxic, odorless, low density, and its strength, stiffness, hardness and heat resistance are all better than low-pressure polyethylene. It can be used at about 100 °C. It has good electrical properties and high-frequency insulation and is not affected by humidity, but it becomes brittle at low temperature, not wear-resistant, and is easy to age. It is suitable for making general mechanical parts, corrosion-resistant parts and insulating parts. Common organic solvents such as acids and alkalis have little effect on it, but this material is easily melted and burned by heat. Contents of the invention [0003] In order to overcome the disadvantage that existing flame-retardant plastics are easy to melt and burn when heated, the invention provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/02C08K3/22C08K5/06C08K5/09C08K3/34B29C47/92B29C48/92
Inventor 康建训
Owner 宁波康氏塑料科技有限公司
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