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Flame retardant and antistatic polyethylene for mine gas drainage pipeline and preparation method thereof

A flame-retardant, anti-static and polyethylene technology is applied in the field of flame-retardant and anti-static polyethylene and its preparation.

Inactive Publication Date: 2011-08-10
SHANGHAI BANZAN MACROMOLECULE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is to provide a flame-retardant and antistatic polyethylene material that can be used in mine pipelines, which can solve the problems of high resistivity and flammability of existing polyethylene

Method used

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  • Flame retardant and antistatic polyethylene for mine gas drainage pipeline and preparation method thereof
  • Flame retardant and antistatic polyethylene for mine gas drainage pipeline and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] Mix 95kg of polyethylene, 10kg of copper powder, 15kg of aluminum hydroxide, 5kg of antioxidant 1010 and 10kg of carbon black powder and put them into a high-speed mixer, heat and mix at 50°C first, heat and mix to 80°C, stop heating and continue mixing, After the shear heat temperature rises to 100°C, the mixture is sent to a twin-screw extruder to extrude and pelletize at 140-200°C, and then dried to obtain a flame-retardant and antistatic polyethylene material.

Embodiment 2

[0029] 90kg of polyethylene, 15kg of aluminum powder, 20kg of antimony trioxide, 8kg of antioxidant DLTP, 6kg of carbon black powder and 4kg of carbon fiber are mixed and placed in a high-speed mixer, heated and mixed at 80°C, and the mixed material is fed into a twin-screw The extruder extrudes and pelletizes at 160-200°C, and then the flame-retardant and antistatic polyethylene material can be obtained after drying.

Embodiment 3

[0031] Mix 100kg polyethylene, 15kg copper powder, 15kg aluminum hydroxide, 5kg antioxidant 1010 and 10kg carbon fiber into a high-speed mixer, mix at a high speed at 90°C, and send the mixed mixture into a twin-screw extruder Extrude and granulate at 140-190°C, and dry to obtain flame-retardant and antistatic polyethylene materials.

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Abstract

The invention belongs to the technical field of flame retardant and antistatic polyethylene materials and particularly relates to flame retardant and antistatic polyethylene for a mine gas drainage pipeline and a preparation method thereof. The polyethylene comprises the following components in parts by weight: 90-100 parts of polyethylene, 5-25 parts of metal powder, 10-30 parts of flame retardant, 2-10 parts of stabilizer 5-25 parts of carbon black. The preparation method comprises the following steps: mixing the materials at a high speed, extruding by virtue of a double screw extruder, cutting and granulating; and drying. Metal powder is added in the polyethylene; the carbon black can be used for effectively reducing the electric resistance of the polyethylene; and the surface resistance of the modified polyethylene is 1*10<4>-1*10<6>, thus the polyethylene provided by the invention is the best antistatic material. The added flame retardant is a superfine inorganic flame retardant and the flame retardant effect can reach the V0 level; and good processability and mechanical properties are maintained.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant and antistatic polyethylene materials, and in particular relates to a flame-retardant and antistatic polyethylene used in coal mine gas drainage pipelines and a preparation method thereof. Background technique [0002] In mines, metal pipes suffer from corrosion, weight issues, and fatal flaws like sparks on impact. At present, the mines are basically converting to plastic polyethylene pipes. Polyethylene pipes are widely used in mines due to their light weight, corrosion resistance, aging resistance, and easy installation, especially in the fields of air pressure, drainage, ventilation, slurry pumping, and gas discharge. [0003] Ordinary polyethylene is insulating, and the surface resistivity is too high. The static electricity accumulated on the surface of the pipe is very harmful to the mine. Take the gas drainage pipeline as an example. During the drainage process, the gas flowing i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K13/04C08K3/08C08K3/22C08K3/38C08K3/04C08K7/06
Inventor 彭艳华储江顺毕宏海程启山毕宏清欧阳贵欧阳圣郑飞艳肖伏兰李南平
Owner SHANGHAI BANZAN MACROMOLECULE MATERIAL
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