Wear-resistant hard composite material using graphene as filler and preparation method thereof

A technology of composite materials and composite material plates, applied in the field of wear-resistant hard polymer composite materials and their preparation, to achieve excellent mechanical properties, prevent passivation cracks, and high specific surface area

Active Publication Date: 2014-03-05
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
View PDF4 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using graphene as a filler to improve the wear

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] The method for preparing the wear-resistant hard graphene / polymer-based composite material of the present invention is characterized by the following processes:

[0029] (1) Preparation of powder with homogeneously mixed graphene and polymer matrix resin particles

[0030] Firstly, an appropriate amount of rare earth stabilizer and acrylate are mixed with polymer matrix resin particles, and then graphene is slowly added in batches under stirring, and high-speed stirring is carried out for 5-10 minutes to obtain a uniformly mixed powder of graphene and polymer matrix. Among them, the role of acrylate is to accelerate the plasticization process of PVC, improve the rheology of PVC fluid and improve the appearance quality of PVC products.

[0031] (2) Add the above powder to the torque rheometer and mix for 3-10 minutes at a temperature of 150-280°C and a rotation speed of 50-100 rpm to obtain a molten composite as a wear-resistant hard composite material Precursor;

[0032] (3) T...

Example Embodiment

[0035] Example 1

[0036] Weigh 69g of polyvinyl chloride (PVC, average particle size is about 140μm), 1.03g of acrylate (ACR), 4.83g of stearate rare earth stabilizer (powder particle size is about 280μm), mix the three and use high speed Stir evenly with a mixer (rotational speed 5000rpm), then weigh 0.15g of graphene powder into the above-mentioned mixed powder, and then stir evenly with a high-speed mixer (rotational speed 5000rpm), and finally obtain a uniformly mixed powder of graphene and polymer matrix. The above-mentioned mixed powder is added to a torque rheometer, the temperature is raised to 165°C, and the mixture is mixed for 5 minutes at a rotation speed of 60 rpm to obtain a massive composite material. The above materials were hot-pressed on a flat vulcanizer preheated to 185°C, and kept under pressure of 15MPa for 10 minutes to prepare a hard graphene / PVC composite sheet, the thickness of the composite sheet is 1.0mm .

[0037] Samples were taken from the plate an...

Example Embodiment

[0038] Example 2

[0039] Weigh 69g PVC (particle size is about 140μm), 1.03g ACR, 4.83g fatty acid rare earth stabilizer (powder particle size is 350μm), mix the three and use a high-speed mixer (speed 6000rpm) to stir evenly, then weigh 0.828 g of graphene powder is added to the mixed powder and stirred evenly with a high-speed mixer (rotating speed 6000 rpm) to obtain a powder in which the graphene and the polymer matrix are uniformly mixed. Add the uniformly mixed mixed powder to the torque rheometer, raise the temperature to 165°C, mix for 5 minutes at a speed of 60 rpm, stop the mixing, remove the massive composite material from the torque rheometer Remove and cool to room temperature. Then, the block composite material is hot-pressed on a flat plate vulcanizer preheated to 185°C, and the pressure is maintained at 15MPa for 10 minutes, and then cooled to room temperature to obtain a hard graphene / PVC composite sheet. The thickness of the high-quality graphene / polymer matr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Coefficient of frictionaaaaaaaaaa
Coefficient of frictionaaaaaaaaaa
Wear rateaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the field of macromolecular composite materials and in particular relates to a wear-resistant hard composite material using a novel nanocarbon material graphene as a filler and a preparation method thereof. The composite material is a hard composite material plate formed by blending and hot-pressing a polymer matrix and the graphene, and is prepared through the following steps: mixing the graphene, the polymer matrix and a rare earth stabilizing agent uniformly; melting and blending by using a torque rheometer to obtain a block-shaped composite; hot-pressing by using a flat vulcanizing machine to obtain the hard composite plate, wherein the composite material comprises 0.1-3wt% of two-dimensional graphene nanocarbon material. The polymer-based composite material using the carbon material as the filler has the characteristics of light weight, easiness in processing, corrosion resistance, friction resistance and the like, and is widely applied in the fields of national defense industry and automobiles. The composite material can meet the increasingly higher tribological performance requirements of the fields of aviation, aerospace, automobiles, machinery and the like on the existing high-performance polymer composite materials; the preparation process of the composite material is simple; industrial production is realized easily.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a wear-resistant hard polymer composite material with novel nano-carbon material-graphene as a filler and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC), as one of the four major engineering materials, is a widely used general-purpose plastic. PVC resin has the advantages of flame retardancy, chemical corrosion resistance, wear resistance, excellent electrical insulation and high mechanical strength, making it possible to produce plastic products that meet various needs by adding additives and other methods during processing , more commonly used such as wire casing, flooring, etc. With the rapid development of technologies in aviation, aerospace, automobiles, machinery and other fields, high-performance polymers and their composite materials play an increasingly important role due to their excellent tribological propert...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L27/06C08L25/06C08L67/02C08L23/06C08L23/12C08K3/04
Inventor 曾尤谢桂媛王函英哲任文才刘畅成会明
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products