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Ultra-high molecular weight polyethylene/carbon nanotube oil tube lining tube and preparation method thereof

A technology of ultra-high molecular weight and carbon nanotubes, applied in the field of ultra-high molecular weight polyethylene/carbon nanotube tubing lining pipes and its preparation, can solve the problems of poor compatibility of two-phase interface, poor mechanical properties and other properties of composite materials, etc. , to achieve the effect of improving processing plasticizing ability, excellent mechanical properties, and increasing heat distortion temperature

Inactive Publication Date: 2013-04-17
朱云杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional ultra-high molecular weight polyethylene / inorganic filler composite material has poor compatibility at the two-phase interface, resulting in poor mechanical properties and other properties of the composite material.

Method used

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  • Ultra-high molecular weight polyethylene/carbon nanotube oil tube lining tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Coupling 5 parts of layered silicate with large aspect ratio and 0.1 part of unsaturated bond-containing silane is performed in a high-speed mixer.

[0029] 2) Add 92 parts of ultra-high molecular weight polyethylene powder, 3 parts of carbon nanotube powder, 0.01 part of peroxide, 0.3 part of water or ethanol into a high-speed mixer in sequence, stir at high speed for 5 minutes, and mix well.

[0030] 3) Extrude the above treated mixture into a pipe on a specially customized involute single-screw extruder.

[0031] The ultra-high molecular weight polyethylene powder is industrially produced polyethylene with a viscosity average molecular weight of 2.5 million to 4.5 million.

[0032] The multi-walled carbon nanotube powder has a length of 10-30um, a diameter of 1-9nm, and a purity of CNT≥90%.

[0033] The layered silicate is mica, kaolinite, halloysite, sepiolite, talc, Inorganic mineral of wollastonite, montmorillonite or palygorskite.

[0034] The sheet thickne...

Embodiment 2

[0039] 1) Coupling 10 parts of layered silicate with a large aspect ratio and 0.2 parts of silane containing unsaturated bonds is performed in a high-speed mixer.

[0040] 2) Add 87 parts of ultra-high molecular weight polyethylene powder, 3 parts of carbon nanotube powder, 0.02 part of peroxide, 0.3 part of water or ethanol into a high-speed mixer in sequence, stir at high speed for 5 minutes, and mix well.

[0041] 3) Extrude the above treated mixture into a pipe on a specially customized involute single-screw extruder.

[0042] Others are basically the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0044] 1) Coupling 15 parts of layered silicate with a large aspect ratio and 0.3 parts of silane containing unsaturated bonds is performed in a high-speed mixer.

[0045] 2) Add 82 parts of ultra-high molecular weight polyethylene powder, 3 parts of carbon nanotube powder, 0.02 part of peroxide, 0.3 part of water or ethanol into a high-speed mixer in sequence, stir at high speed for 5 minutes, and mix well.

[0046] 3) Extrude the above treated mixture into a pipe on a specially customized involute single-screw extruder.

[0047] Others are basically the same as those in Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses an ultra-high molecular weight polyethylene / carbon nanotube oil tube lining tube and a preparation method thereof. The preparation method comprises the following steps: performing coupling treatment on layered silicate and silane containing unsaturated bonds in a high-speed stirrer; then, sequentially adding ultra-high molecular weight polyethylene powder, multiwall carbon nanotube powder, peroxide and ethanol into the high-speed stirrer, stirring at a high speed for 3-30 minutes together with the layered silicate subjected to coupling treatment, and uniformly mixing; and finally, extruding the treated mixture at 180-270 DEG C on an involute type single-screw extruder, thus obtaining the tube. According to the invention, through the coupling treatment, the interfacial compatibility of organic / inorganic phases is enhanced; and through micro crosslinking and control on the shear strength of the polymer melt, grafted monomers are urged to be inserted into layers of the layered silicate, and the Van der Waals bonding force between every two adjacent layers of the layered silicate is reduced and further destroyed, thereby ensuring that the tube product has excellent mechanical property, thermal property and abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to an ultra-high molecular weight polyethylene / carbon nanotube oil pipe lining pipe and a preparation method thereof. Background technique [0002] At present, ultra-high molecular weight polyethylene refers to a linear structure polyethylene with a viscosity average molecular weight of more than 1.5 million. Its wear resistance, impact resistance, corrosion resistance, self-lubrication, and impact absorption are the highest among existing plastics, so it is called "Amazing plastic", but difficult to mold due to extremely high viscosity. Generally, the extruders used for modification or molding of ultra-high molecular weight polyethylene powder include single-screw extruders and twin-screw extruders. Among them, the twin-screw is a positive displacement conveying method, which has high conveying efficiency and large shear force on materials. Generally, research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K9/06C08K7/00C08K3/04C08K3/34C08K3/36C08K3/22C08K5/14F16L9/12
Inventor 朱云杰
Owner 朱云杰
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