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Carbon-nano-tube-reinforced polyethylene tube

A technology of carbon nanotubes and polyethylene tubes, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problems of poor dispersion, difficult stability, and poor bonding of carbon nanotubes, and achieve good durability and mechanical strength Improved strength and heat aging properties, and excellent flexibility

Active Publication Date: 2015-04-22
ZHEJIANG XINDA PLASTIC PIPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single-armed and multi-walled carbon nanotubes are chemically stable, insoluble in water and organic solvents, have excellent mechanical properties and electrical conductivity, and unique nano-effects unique to their one-dimensional nanostructures, but due to their high surface atoms The surface energy and surface binding energy have poor dispersion and are easy to form large aggregates. When used as a reinforcement material for polyethylene matrix, agglomeration is very easy to occur, resulting in low dispersion of carbon nanotubes in polyethylene matrix, which in turn affects the composite material. application performance
The process of directly compounding carbon nanotubes and polyethylene substrates is simple, but due to the poor bonding between the surface of carbon nanotubes and polyethylene, it is not easy to obtain stable polyethylene pipes with good aging performance

Method used

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  • Carbon-nano-tube-reinforced polyethylene tube

Examples

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Comparison scheme
Effect test

Embodiment 1

[0030] Raw materials are prepared according to the following parts by weight: 80 parts of high-density polyethylene; 2 parts of carbon nanotubes; 3 parts of lubricant, 2 parts of antistatic agent, and 5 parts of flame retardant; wherein, the lubricant is stearic acid, paraffin or polystyrene Ethylene wax; the flame retardant is a mixture of magnesium hydroxide and aluminum hydroxide with a mass ratio of 2:1; the antistatic agent is conductive acetylene carbon black. The melt index of described high-density polyethylene resin is 5g / 10min, and density is 0.960g / cm 3 HDPE resin.

[0031] Then, prepare described carbon nanotube reinforced polyethylene pipe as follows:

[0032] 1) Pretreatment of carbon nanotubes: reflux aluminum-titanium composite coupling agent OL-AT1618 and carbon nanotubes in ethanol for 120 minutes, the mass concentration of carbon nanotubes is 2g / ml; then remove ethanol, dry, and measure the moisture content 176ppm; Among them, the mass ratio of aluminum-ti...

Embodiment 2

[0037]Raw materials are prepared according to the following parts by weight: 100 parts of high-density polyethylene; 3 parts of carbon nanotubes; 8 parts of lubricant, 4 parts of antistatic agent, and 10 parts of flame retardant; wherein, lubricant is polyethylene wax; flame retardant It is a mixture of magnesium hydroxide and aluminum hydroxide with a mass ratio of 2:1; the antistatic agent is conductive acetylene carbon black. The melt index of described high-density polyethylene resin is 5g / 10min, and density is 0.960g / cm 3 HDPE resin.

[0038] Then, prepare described carbon nanotube reinforced polyethylene pipe as follows:

[0039] 1) Pretreatment of carbon nanotubes: reflux aluminum-titanium composite coupling agent HY-133 and carbon nanotubes in isopropanol for 90 minutes, the mass concentration of carbon nanotubes is 1g / ml, then remove ethanol, dry, and water content The measured value is 207ppm; among them, the mass ratio of aluminum-titanium composite coupling agent...

Embodiment 3

[0044] Raw materials are prepared according to the following parts by weight: 90 parts of high-density polyethylene; 1 part of carbon nanotube; 5 parts of lubricant, 6 parts of antistatic agent, and 8 parts of flame retardant; wherein, lubricant is magnesium stearate; flame retardant The agent is a mixture of magnesium hydroxide and aluminum hydroxide at 2:1.1; the antistatic agent is conductive acetylene carbon black. The melt index of described high-density polyethylene resin is 10g / 10min, and density is 0.958g / cm 3 HDPE resin.

[0045] Then, prepare described carbon nanotube reinforced polyethylene pipe as follows:

[0046] 1) Pretreatment of carbon nanotubes: reflux the aluminum-titanium composite coupling agent OL-AT1618 and carbon nanotubes in ethanol for 30 minutes, the mass concentration of carbon nanotubes can be 0.5g / ml, then remove ethanol, dry, and measure the moisture content 135ppm was obtained; among them, the mass ratio of aluminum-titanium composite coupling...

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Abstract

The invention relates to a carbon-nano-tube-reinforced polyethylene tube which comprises, by weight, 70-100 parts of high-density polyethylene and 1-10 parts of carbon nano tubes. The carbon-nano-tube-reinforced polyethylene tube has the advantages that the carbon-nano-tube-reinforced polyethylene tube has excellent suppleness and formability; the carbon nano tubes are uniformly distributed and basically consistent in orientation in a polyethylene matrix so as to be firmly combined with the matrix, free from scattering and loss due to friction and good in durability; and the carbon nano tubes are conflict-free with other auxiliaries and good in synergy, and the antistatic performance, the mechanical strength and the thermal ageing performance are improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a carbon nanotube reinforced polyethylene tube. Background technique [0002] Polyethylene is the simplest polymer organic compound and one of the most widely used polymer materials in the world today. Polyethylene is polymerized from ethylene and can be made into various application materials. Pipes are one of the most important ones. Compared with pipes made of other materials, PE pipes have the following characteristics: 1) Good hygienic performance: when PE pipes are processed No heavy metal salt stabilizer is added, the material is non-toxic, has no scaling layer, and does not breed bacteria, which solves the secondary pollution of urban drinking water; 2) Excellent corrosion resistance: except for a few strong oxidants, it can withstand many 3) Long service life: PE pipes can be safely used for more than 50 years under rated temperature and pressure conditions; 4...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K13/06C08K9/04C08K7/00C08K3/04F16L9/12B29C47/92B29C48/92
CPCB29C47/92B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92933
Inventor 王立君
Owner ZHEJIANG XINDA PLASTIC PIPE
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