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Self-lubricating polypropylene material and preparation method thereof

A polypropylene material and self-lubricating technology, which is applied in the field of self-lubricating polypropylene material and its preparation, can solve the problems of large aspect ratio and surface energy, small diameter of carbon nanotubes, and inability to disperse uniformly, so as to improve the interfacial phase Capacitance, excellent mechanical properties, anti-friction and self-lubricating properties

Inactive Publication Date: 2015-12-30
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, carbon nanotubes are small in diameter, large in aspect ratio and surface energy, and are prone to self-agglomeration, which prevents them from being uniformly dispersed in polymers.

Method used

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  • Self-lubricating polypropylene material and preparation method thereof
  • Self-lubricating polypropylene material and preparation method thereof
  • Self-lubricating polypropylene material and preparation method thereof

Examples

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Embodiment Construction

[0016] Below in conjunction with example, the present invention is described in further detail:

[0017] In the formulation of the composite material in the example, the polypropylene is produced by Fujian United Petrochemical Co., Ltd., and the trade name is T30s. The carbon nanotubes are prepared by chemical vapor deposition, ground into fine powder with a planetary ball mill, and then the catalyst carrier is removed with hydrofluoric acid, Ni, Al and amorphous carbon are removed with 65% (v / v) nitric acid, It is then boiled with sulfuric acid and nitric acid (volume ratio 3:1), washed until nearly neutral and vacuum-dried. The diameter is 18.4-45.2nm and the length is 0.9-3.0μm. The compatibilizer is maleic anhydride grafted polypropylene, produced by Shanghai Yangli Electromechanical Technology Co., Ltd., the model is MAPPG2100, the grafting rate is ≥ 1.0%, the melting index is ≥ 80g / 10min, and the softening point is 153°C.

[0018] Weigh the raw materials according to th...

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Abstract

The invention discloses a self-lubricating polypropylene material and a preparation method thereof and belongs to the technical field of high polymer materials. According to the invention, an acidized carbon nano-tube is adopted to reinforce the polypropylene material and maleic anhydride grafted polypropylene is adopted to improve the interface compatibility between the carbon nano-tube and a polypropylene matrix, so that the defects that the carbon nano-tube is extremely easy to agglomerate and poor in dispersibility and interface bonding in the polypropylene matrix are overcome. The polypropylene material is prepared through a melting-extrusion injection moulding method by a double-screw extruder and an injection molding machine, the polypropylene composite material is endowed with the antifriction self-lubricating property of the carbon nano-tube, and the antifriction self-lubricating property of the polypropylene is improved, and the friction and wear properties of the composite material are described from the point of different working conditions and the application field of the polypropylene material used as engineering materials for making plastic gears, plastic sliding plates, plastic bearings and the like is expanded.

Description

technical field [0001] The invention relates to a self-lubricating polypropylene material and a preparation method thereof, and belongs to the technical field of polymer materials. Specifically, maleic anhydride-grafted polypropylene is used as a compatibilizer to improve the interface phase between carbon nanotubes and polypropylene matrix Capacitance, so that the prepared composite material has good anti-friction and self-lubricating properties. Background technique [0002] With the development of medical equipment, modern machinery and other fields, many types of parts are required to have certain wear resistance. Some polymer composite materials have many advantages such as low cost, light weight, and good chemical corrosion resistance. The anti-friction field is widely used, such as bearings, gears, skateboards, shafts and other parts made of polymer composite materials. These application fields have higher and higher requirements for anti-friction and self-lubricating...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08K9/02C08K7/24B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/9258B29C2948/92704C08K2201/011C08L51/06C08K9/02C08K7/24
Inventor 卢月美王世伟
Owner FUZHOU UNIV
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