Graphene micro-sheet/high-density polyethylene composite material and preparation method thereof

A technology of high-density polyethylene and graphene microchips, which is applied in the field of materials, can solve the problems of reducing the service life of PE pipes, poor wear resistance, waste of resources, etc., and achieve improved compatibility and dispersion, and good wear resistance , the effect of prolonging the service life

Inactive Publication Date: 2019-03-01
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current PE pipes are easy to wear and have poor wear resistance, which greatly reduces the service life of PE pipes and causes a waste of resources.

Method used

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  • Graphene micro-sheet/high-density polyethylene composite material and preparation method thereof
  • Graphene micro-sheet/high-density polyethylene composite material and preparation method thereof
  • Graphene micro-sheet/high-density polyethylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) The graphene microflakes, high-density polyethylene and silane coupling agent dried to constant weight were formulated into raw materials of each component according to the ratio, including 99.5 parts of high-density polyethylene, 0.5 parts of graphene microflakes, silane coupling agent 0.05 parts of the joint agent, and then mechanically mix evenly.

[0026] (2) Melt extrusion: put the uniformly mixed raw materials into a micro-twin-screw extruder, perform melt blending at a temperature of 140°C, and extrude at a temperature of 145°C.

[0027] (3) Injection molding: Injection molding the extruded material in step 2), wherein the injection molding process is as follows: the mold temperature is 50°C, the injection cylinder temperature is 220°C, the injection pressure is 0.25MPa, and the holding pressure is 0.25MPa. The time is 20s, and the closing time is 22s.

[0028] (4) MMS-2A microcomputer-controlled friction testing machine was used to test the friction propert...

Embodiment 2

[0031] Weigh 99 parts of high-density polyethylene, 1 part of graphene microflakes, and 0.1 part of silane coupling agent, prepare samples according to the steps and conditions of Example 1, and test their friction and mechanical properties.

Embodiment 3

[0033] Weigh 98.5 parts of high-density polyethylene, 1.5 parts of graphene microflakes, and 0.15 parts of silane coupling agent. Prepare samples and test friction and mechanical properties according to the steps and conditions of Example 1.

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Abstract

The invention discloses a graphene micro-sheet/high-density polyethylene composite material and a preparation method thereof. Raw materials comprise a graphene micro-sheet, high-density polyethylene and a silane coupling agent. The performance of the high-density polyethylene is improved by using the graphene micro-sheet to prepare the high-density polyethylene composite material, and the frictionabrasion performance and mechanical properties of the composite material are greatly improved; the graphene micro-sheet/high-density polyethylene composite material has the advantages of low cost, high chemical stability and easiness for processing and molding and realizing large-scale production, and has a wider application prospect in the fields including gas transportation, water supply and pollution emission, agricultural irrigation, posts and telecommunications and communications and the like.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a graphene microchip / high-density polyethylene composite material and a preparation method thereof. Background technique [0002] Graphene Nanoplatelets (GNPs for short) refer to ultra-thin graphene layered stacks with more than 10 carbon layers and a thickness in the range of 5-100nm. At present, there are many studies on the modification of high-density polyethylene (HDPE) with graphene as a reinforcing filler, but there are few studies on the modification of HDPE with graphene microplatelets as a reinforcing filler. Compared with graphene, the preparation process of GNPs is simpler and lower in cost, and it has excellent mechanical strength, electrical conductivity, thermal conductivity, and good lubrication, high temperature resistance and corrosion resistance. It is an ideal polymer matrix composite. Material reinforcement. [0003] High-density polyethylene,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K7/00C08K3/04
CPCC08K3/042C08K7/00C08K2201/004C08L23/06
Inventor 卢月美王书博刘建仁
Owner FUZHOU UNIV
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