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Antistatic fireproof composite polyethylene pipe and its production process

A technology of flame-retardant polyethylene and composite pipes, which is applied in the direction of tubular objects, other household appliances, household appliances, etc., can solve the problems of restrictions on popularization and use, static effects that cannot last long, and large pollution, and achieve antistatic and flame-retardant synergistic effects Good, excellent physical and mechanical properties, the effect of improving the safety factor

Inactive Publication Date: 2004-04-07
ZIBO JIUHE PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of antistatic modification, there are mainly two methods: one is to use electroplating, coating, pasting, etc. on the surface of the product. This method is costly and pollutes a lot
The second is the addition method, adding antistatic agents or conductive fillers to non-polar resins, but due to some improper measures, the electrostatic effect is often not long-lasting, resulting in certain restrictions on the promotion and use of this kind of pipes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: The weight composition is:

[0039] Decabromodiphenyl ether 10%, antimony trioxide 7%, conductive carbon black 6%, polyethylene wax 2%, antioxidant 10102%, low density polyethylene 25%, high density polyethylene 48%.

[0040] The conductive carbon black undergoes the following modification treatment: the conductive carbon black is heated at 300°C for 10 minutes under a vacuum condition of 300 Pa.

[0041] The manufacturing process is in accordance with the manufacturing process described in the present invention.

Embodiment 2

[0042] Embodiment 2: The weight composition is:

[0043] Decabromodiphenyl ether 15%, antimony trioxide 3%, conductive carbon black 8%, polyethylene wax 3%, antioxidant 10103%, low-density polyethylene 15%, high-density polyethylene 53%.

[0044] The modification treatment of the conductive carbon black is: the conductive carbon black is heated at 200°C for 30 minutes under a vacuum condition of 500 Pa.

Embodiment 3

[0045] Embodiment 3: The weight composition is:

[0046] Decabromodiphenyl ether 5%, antimony trioxide 10%, conductive carbon black 5%, polyethylene wax 1%, antioxidant 168 1%, low density polyethylene 30%, high density polyethylene 48%.

[0047] Modification treatment of conductive carbon black: Conductive carbon black is heated at 100°C for 60 minutes under 30Pa vacuum conditions.

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PUM

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Abstract

The antistatic fireproof composite polyethylene pipe is made of the material comprising bromated fire retardant 5-15 wt%, antimonial compound 3-10 wt%, conducting carbon black 5-8 wt%, polyethylene wax 1-3 wt% and antioxidant 0.5-3 wt% except polyethylene. The conducting carbon black is preferably conducting carbon black modified through heating at 100-300 deg.c at vacuum degree of 1000 Pa for over 10 min. The polyethylene is preferably the mixture of low density polyethylene 15-30% of the total pipe material weight and high density polyethylene 30-70% of the total pipe material weight. The pipe has excellent and lasting antistatic performance, good fireproof performance and excellent physical and chemical performance, and its may be used in coal mine resulting in high safety.

Description

Technical field [0001] The invention relates to an antistatic and flame-retardant polyethylene composite pipe and a preparation process. The composite pipe is more suitable for use in coal wells. Background technique [0002] In underground mine pipes, replacing metal pipes with plastic pipes has attracted more and more attention. Plastic pipe is favored by people because it is not only low cost, light weight, easy to install, but also has good corrosion resistance and long downhole service life. At the same time, it also has disadvantages such as flammability and easy generation of static electricity. Therefore, there are many people in China. Committed to the improvement of plastic pipes. [0003] In terms of flame retardant modification, it is mainly through adding additive flame retardant to the resin. There are many types of flame retardants, one type can be used alone, or several flame retardants can be used in combination. Commonly used are bro...

Claims

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Application Information

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IPC IPC(8): B29C47/00B29D23/00C08K3/22C08L23/06
Inventor 刘卫房
Owner ZIBO JIUHE PLASTIC PROD
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