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Grapheme-containing reinforced wear-resistant material composition, reinforced wear-resistant material and preparation method thereof

A wear-resistant material and graphene technology, applied in the field of polymer materials and their preparation, can solve the problems of limited application scope, difficulty in forming and processing, and high melt viscosity, and achieve the effects of improving mechanical properties, easy implementation and less dosage.

Active Publication Date: 2012-04-18
RIFENG ENTERPRISE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most polyolefins have poor wear resistance due to their molecular chain flexibility, which limits their application range
Although ultra-high molecular weight polyethylene (UHMW-PE) has excellent wear resistance and moderate price, it is very difficult to form and process due to its large molecular weight and high melt viscosity, which greatly limits its application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The composition of present embodiment contains graphene, polyolefin and coupling agent, and 1 gram of hydroxyl or carboxyl content is 5%, and thickness 0.08~1.2nm, radial dimension are the hydroxyl of 80nm or carboxylated graphene (purchased from prior Fung Nano Company), 0.02g n-hexadecyltrimethoxysilane as the coupling agent, that is, the coupling agent is 2% of the graphene mass, and 99 grams of ethylene and propylene with a melt index of 0.26g / 10min are randomly copolymerized PPR, (brand name PA14D, Daqing Refining and Chemical Branch of PetroChina Co., Ltd.), that is, the weight ratio of graphene to PPR is 1:99.

[0036] Its preparation method is:

[0037] (1) The above-mentioned graphene, PPR, coupling agent, and solvent acetone are used as raw materials, the weight ratio of graphene to PPR is 1:99, and the amount of coupling agent is 2% of the mass of graphene.

[0038] (2) Dissolve the coupling agent n-hexadecyltrimethoxysilane in acetone. The amount of acetone...

Embodiment 2

[0046] The equipment and operating method used in this embodiment are basically the same as in Example 1, except that the composition in this embodiment is composed of 2 grams of amino groups with a content of 4%, a thickness of 0.08~1.2nm, and a radial dimension of 75nm Aminated graphene (purchased from Xianfeng Nano Co., Ltd.), 0.02 grams of n-octyltrimethoxysilane as a coupling agent, that is, the coupling agent is 1% of the graphene mass, and the melt index of 98 grams is 0.49g / 10min High-density polyethylene (HDPE), (brand TR480, China Petrochemical Corporation Maoming Company), that is, the weight ratio of graphene to HDPE is 2:98.

[0047] Its preparation method is:

[0048] (1) With the above-mentioned graphene, HDPE, coupling agent, and solvent absolute alcohol (absolute ethanol) as raw materials, the weight ratio of graphene to HDPE is 2:98, and the amount of coupling agent is 2% of the graphene quality. 1%.

[0049] (2) Dissolve the coupling agent n-octyltrimeth...

Embodiment 3

[0057] The used equipment and operation method of this embodiment are basically the same as embodiment 1, only difference is:

[0058] The composition of the composition in this embodiment is 4 grams of mercaptographene with a mercapto group content of 3%, a thickness of 0.8 to 1.2 nm, and a radial dimension of 90 nm (purchased from FS Nano Corporation), 0.02 grams of n- Dodecyltrimethoxysilane is used as a coupling agent, that is, the coupling agent is 0.5% of the graphene mass, and 96 grams of medium density polyethylene (PE-RT, brand SP980, Korea LG Chemical Co., Ltd.) has a melt index of 0.65g / 10min. company), that is, the weight ratio of graphene to MDPE is 4:96.

[0059] Its preparation method is:

[0060] (1) With the above-mentioned graphene, MDPE, (PE-RT, grade SP980, Korean LG Chemical Company), coupling agent n-dodecyltrimethoxysilane, solvent acetone as raw materials, the graphene and MDPE The weight ratio is 4:96, and the consumption of the coupling agent is 0.5...

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Abstract

The invention relates to a grapheme reinforcing agent-containing reinforced wear-resistant material and a preparation method thereof. A composition of the wear-resistant material comprises grapheme, polyolefin and a coupling agent, wherein the weight ratio of the grapheme to the polyolefin is 0.5:99.5-10:90; and the using amount of the coupling agent is 0.5-5 percent of the mass of the grapheme. The preparation method of the wear-resistant material comprises the following steps of: putting grapheme and the coupling agent which is dissolved into acetone or absolute ethyl alcohol serving as a solvent into a container; dispersing with ultrasonic waves; removing the solvent to constant weight; uniformly mixing with the polyolefin; and fusing in an internal mixer at the temperature 190-230 DEGC, and blending for 7-20 minutes. By adopting the method disclosed by the invention, the wear performance and mechanical property of a polyolefin material are enhanced remarkably, and the applicationfield of the polyolefin material is expanded.

Description

technical field [0001] The invention relates to a polymer material and a preparation method thereof, more specifically to a material composition for enhancing wear resistance containing a graphene reinforcing agent, an enhanced wear-resistant material formed from the material composition and the enhanced wear-resistant material material preparation method. Background technique [0002] Graphene is a new type of two-dimensional carbon nanomaterial after fullerene and carbon nanotubes. It is a two-dimensional honeycomb structure formed by densely packed carbon atoms. ". The ideal graphene is only the thickness of a single layer of carbon atoms, that is, 0.34nm, but it has rich and novel physical and chemical properties, such as large specific surface area, excellent electrical properties, and high carrier mobility. So far, there have been reports on graphene-containing composites with excellent electrical conductivity, antibacterial properties, gas barrier, and flame retarda...

Claims

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Application Information

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IPC IPC(8): C08L23/00C08L23/06C08L23/12C08L23/16C08K9/06C08K3/04
Inventor 李白千彭晓翊程小莲
Owner RIFENG ENTERPRISE GRP CO LTD
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