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High-wear-resistance polypropylene material and preparation method thereof

A polypropylene material, high wear-resistant technology, applied in the field of polymer material modification, can solve the problems of low surface hardness, application limitations, and low wear resistance of polypropylene materials, so as to enhance wear resistance and reduce surface friction coefficient , the effect of improving compatibility

Active Publication Date: 2021-06-01
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The surface hardness of polypropylene material is low, and it is easy to scratch during use, which leads to certain restrictions on its application
The usual way to improve is to improve the wear resistance of polypropylene by adding molybdenum disulfide, polytetrafluoroethylene, etc. to the raw materials, and to increase the wear resistance of polypropylene by adding talcum powder to the polypropylene, but these methods have no effect on The increase in wear resistance is small

Method used

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  • High-wear-resistance polypropylene material and preparation method thereof
  • High-wear-resistance polypropylene material and preparation method thereof
  • High-wear-resistance polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032](1) The ratio of molybdenum disulfide and ceramic fibers were referred to as the ratio of Table 1, and the ball grinding tank was placed into a powder, the rotational speed of the ball mill was 300 r / min, and the ball milling time was 0.5 hours.

[0033](2) The mixed powder of molybdenum sulfide and ceramic fibers is added to the high mixer together with the coupling agent, and mixed for 3 minutes to obtain a mixed powder.

[0034](3) Put the polypropylene, compatible agent, lubricant and heat-resistant aid by ratio weighing, and mixed with a high-speed mixer for 3 minutes;

[0035](4) The mixture obtained by step (3) is added from the double screw extruder main feed, and the mixed powder obtained by step (2) is added from the twin-screw extruder side feed opening, two mixtures in twin screws. After molten mixing in the extruder, the extrusion strip is cooled to room temperature by the circulating water tank, and after drying after drying, it is dried into the particulating machine t...

Embodiment 2

[0039](1) The ratio of molybdenum sulfide and ceramic fibers were referred to as the ratio of Table 1, and the ball grinding tank was placed into a powder, the rotational speed of the ball mill was 200R / min, and the ball milling time was 1 hour.

[0040](2) The mixed powder of molybdenum sulfide and ceramic fibers is added to the high mixer together with the coupling agent, and mixed for 3 minutes to obtain a mixed powder.

[0041](3) Put the polypropylene, compatible agent, lubricant and heat-resistant aid by ratio weighing, and mixed with a high-speed mixer for 3 minutes;

[0042](4) The mixture obtained by step (3) is added from the double screw extruder main feed, and the mixed powder obtained by step (2) is added from the twin-screw extruder side feed opening, two mixtures in twin screws. After molten mixing in the extruder, the extrusion strip is cooled to room temperature by the circulating water tank, and after drying after drying, it is dried into the particulating machine to obta...

Embodiment 3

[0046](1) The ratio of molybdenum sulfide and ceramic fibers were referred to as the ratio of Table 1, and the ball grinding tank was placed into a powder, and the rotational speed of the ball mill was 400 r / min, and the ball milling time was 0.5 hours.

[0047](2) The mixed powder of molybdenum sulfide and ceramic fibers is added to the high mixer together with the coupling agent, and mixed for 3 minutes to obtain a mixed powder.

[0048](3) A mixture is mixed in a high-speed mixer by polypropylene, compatibilizer, lubricant, and heat-resistant aid by ratio weighing.

[0049](4) The mixture obtained by step (3) is added from the double screw extruder main feed, and the mixed powder obtained by step (2) is added from the twin-screw extruder side feed opening, two mixtures in twin screws. After molten mixing in the extruder, the extrusion strip is cooled to room temperature by the circulating water tank, and after drying after drying, it is dried into the particulating machine to obtain a h...

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Abstract

The invention discloses a high-wear-resistance polypropylene material which is prepared from the following components in parts by weight: 69-81 parts of polypropylene, 3-5 parts of an interface compatilizer, 2-4 parts of molybdenum disulfide, 10-20 parts of ceramic fibers, 0.2-0.6 part of a coupling agent, 2-4 parts of a lubricant and 0.2-0.4 part of a heat-resistant aid. The invention also discloses a production method of the high-wear-resistance polypropylene material. Molybdenum disulfide and ceramic fibers are subjected to ball milling treatment by utilizing a ball milling tank, so that ceramic fiber powder is embedded into molybdenum disulfide powder lamellas, and molybdenum disulfide and ceramic fiber mixed powder is pretreated by utilizing a coupling agent, so that the molybdenum disulfide powder is effectively prevented from being agglomerated in polypropylene. The ceramic fiber can improve the surface hardness of the material, the molybdenum disulfide can reduce the friction coefficient of the material, and the ceramic fiber and the molybdenum disulfide are compounded, so that the prepared polypropylene material has high wear resistance and very high practical applicability.

Description

Technical field[0001]The present invention belongs to the technical field of polymer material modification technology and the technical field, and more particularly to high resistant polypropylene materials and methods of preparation thereof.Background technique[0002]Polypropylene (PP) is one of the general plastics, has the characteristics of high heat resistance, high strength, low density, good processability, and is cheap, and there is currently wide application in the fields of automobiles, home appliances.[0003]The surface hardness of the polypropylene material is low, and it is easy to scratch during use, resulting in a certain limit. The usual improvement is to improve the wear resistance of polypropylene by improving the wear resistance of polypropylene, polytetrafluoroethylene, or the like, in the raw material, and also increases the wear resistance of polypropylene by adding talc powder filled in polypropylene, but these methods are Wear resistance is less improved.[0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L51/06C08L83/04C08K13/06C08K9/06C08K7/04C08K3/30C08K5/134C08K5/526
CPCC08L23/14C08L23/12C08K2003/3009C08L2205/03C08L2205/08C08L51/06C08L83/04C08K13/06C08K9/06C08K7/04C08K3/30C08K5/1345C08K5/526
Inventor 杨桂生宋伟华邹冲姚晨光梁娜朱敏邵灵芝王华
Owner HEFEI GENIUS NEW MATERIALS
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