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UHMWPE modified wear-resisting composite pipe and manufacturing method thereof

An ultra-high molecular weight, polyethylene modification technology, used in tubular articles, other household appliances, applications, etc., can solve the problems of poor processing performance of polyethylene resin pipes, improve the internal quality and appearance quality, good effect, Addressing the effects of performance and processability

Active Publication Date: 2014-08-27
SHANDONG GUOSU TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, provide an ultra-high molecular weight polyethylene modified wear-resistant composite pipe and its preparation method, increase the wear resistance of polyethylene resin pipes, and solve the problem of poor processing performance of polyethylene resin pipes , effectively increase the production speed of UHMWPE pipes, greatly improve the internal quality and appearance quality of UHMWPE pipes, achieve a "mirror" effect on the inner and outer surfaces of the pipes, produce pipes with thinner walls, and improve Benefits for pipe manufacturers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In this example, the ultra-high molecular weight polyethylene modified wear-resistant composite pipe is composed of the following raw materials in parts by weight:

[0040]Ultra-high molecular weight polyethylene resin: 100, rubber particles: 12, molybdenum disulfide treated with silane coupling agent KH570: 23, ultrafine carbon black: 2, polytetrafluoroethylene: 5, YP816: 3.

[0041] The molecular weight of ultra-high molecular weight polyethylene resin is 2 million.

[0042] The preparation steps of ultra-high molecular weight polyethylene modified wear-resistant composite pipe are as follows:

[0043] (1) Mixing: Add the above-mentioned raw materials into the mixer to get uniform dispersion, and remove the contained moisture by friction and heat generation during the dispersion process to obtain a uniformly dispersed mixed mixture;

[0044] (2) Extrusion: The mixed material is fed into the extruder from the hopper, and through the process of compression, melting and...

Embodiment 2

[0059] In this example, the ultra-high molecular weight polyethylene modified wear-resistant composite pipe is composed of the following raw materials in parts by weight:

[0060] Ultra-high molecular weight polyethylene resin: 100, rubber particles: 12, molybdenum disulfide treated with silane coupling agent KH570: 23, ultrafine carbon black: 5, polytetrafluoroethylene: 5, YP816: 3, wollastonite: 3.

[0061] The molecular weight of ultra-high molecular weight polyethylene resin is 6 million.

[0062] The preparation steps of this embodiment are the same as those of this embodiment. The difference is that

[0063] The heating sequence in the production process:

[0064] The mold is heated up. During the heating period, the set temperature of the temperature controller in the high temperature zone above 200°C is lowered by 20°C than the standard value. After the temperature rises to the set value, the large mold above Φ400 is kept warm for 3.5 hours, and the set value is ra...

Embodiment 3

[0067] In this example, the ultra-high molecular weight polyethylene modified wear-resistant composite pipe is composed of the following raw materials in parts by weight:

[0068] Ultra-high molecular weight polyethylene resin: 100, rubber particles: 15, molybdenum disulfide treated with silane coupling agent KH570: 22, ultrafine carbon black: 2, polytetrafluoroethylene: 5, YP816: 3, wollastonite 1 , benzoic acid 2, benzoate 1;

[0069] The molecular weight of ultra-high molecular weight polyethylene resin is 3 million.

[0070] The preparation steps of this embodiment are the same as those of this embodiment.

[0071] A 110×10.0 pipe was prepared as Sample 3.

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Abstract

The invention relates to a UHMWPE modified wear-resisting composite pipe. The UHMWPE modified wear-resisting composite pipe is composed of, by weight, 100 parts of UHMWPE resin, 10-15 parts of rubber particles, 10-25 parts of molybdenum disulfide processed by a coupling agent, 1-5 parts of ultrafine carbon black, 2-7 parts of teflon and 2-5 parts of flow modifiers. The UHMWPE modified wear-resisting composite pipe solves the contradiction between the performance and the machinability of the UHMWPE modified wear-resisting composite pipe, the pipe with the thinner pipe wall is produced out, and the benefits of pipe manufacturers are improved; the production speed of the UHMWPE modified wear-resisting composite pipe can be increased effectively, the internal quality and the appearance quality of the UHMWPE modified wear-resisting composite pipe are improved greatly, the inner surface and the outer surface of the pipe can reach the mirror plane effect, and the wear resistance and the machinability performance of the UHMWPE modified wear-resisting composite pipe are improved.

Description

technical field [0001] The invention relates to an ultra-high molecular weight polyethylene modified wear-resistant composite pipe and a preparation method thereof, and relates to the field of a polymer material ultra-high molecular weight polyethylene product. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) is a linear structure polyethylene with a viscosity-average molecular weight of more than 1.5 million (the relative molecular mass of ordinary polyethylene is only 20,000-300,000), the molecular weight is usually 1-5 million, and the crystallinity is 65%- 85%, density 0.92-0.96g / cm3. The extremely high relative molecular weight endows it with extraordinary performance and becomes a new type of thermoplastic engineering plastic with excellent performance. Due to its extremely high molecular weight, it almost concentrates the advantages of various plastics, and has incomparable wear resistance, impact resistance, self-lubrication, corrosion...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L21/00C08L27/18C08K13/06C08K9/06C08K3/30C08K3/04B29D23/00
CPCB29D23/00B29K2995/0087C08L23/06C08L2203/18C08L2205/03C08L21/00C08L27/18C08K9/06C08K2003/3009C08K3/04C08K3/34C08K13/06C08K5/09
Inventor 刘健孙兆国
Owner SHANDONG GUOSU TECH IND
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