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High-strength and high-toughness nylon composite material used for railway fasteners, and preparation method thereof

A nylon composite material, high-strength and high-toughness technology, applied in the field of nylon composite material and its preparation, can solve problems such as mechanical properties decline, achieve high toughness, excellent mechanical properties, and solve the effect of reducing rigidity

Inactive Publication Date: 2017-05-17
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the problem that the mechanical properties of the nylon material in the prior art are significantly reduced after moisture absorption, and to provide a high-strength and high-toughness nylon composite material and its Preparation

Method used

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  • High-strength and high-toughness nylon composite material used for railway fasteners, and preparation method thereof
  • High-strength and high-toughness nylon composite material used for railway fasteners, and preparation method thereof
  • High-strength and high-toughness nylon composite material used for railway fasteners, and preparation method thereof

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Embodiment Construction

[0035] In order to facilitate the understanding of the present invention, the following will describe the present invention more fully and in detail in combination with preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0036] Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. The terminology used herein is only for the purpose of describing specific embodiments, and is not intended to limit the protection scope of the present invention.

[0037] Unless otherwise specified, the various reagents and raw materials used in the present invention are commercially available products or products that can be prepared by known methods.

[0038] The preparation methods of the following specific examples are the same, all are to pre-mix the matrix resin, inorganic minerals, compatibilizer and processing aid in the mixer accor...

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Abstract

The invention discloses a high-strength and high-toughness nylon composite material used for railway fasteners. The nylon composite material comprises, by weight, 30-70% of matrix resin, 10-60% of reinforced fibers, 0-20% of inorganic minerals, 1-30% of a hydrolysis resisting agent and 0.1-5% of a processing assistant. A preparation method of the nylon composite material comprises the following steps: placing all above raw materials in a double screw extruder, shearing and blending the above obtained mixture through the double screw extruder, extruding the mixture through a head, drawing the extruded mixture to form strips, air-cooling the strips, cutting the air-cooled strips to form granules, and drying the granules to obtain the nylon composite material. The railway fasteners produced from the high-strength and high-toughness nylon composite material have weak performance attention in high-temperature and high-humidity environment, and meets use requirements of the railway fasteners in the high-temperature and high-humidity environment.

Description

technical field [0001] The invention relates to a nylon composite material and a preparation method thereof, in particular to a high-strength and high-toughness nylon composite material for rail fasteners and a preparation method thereof. Background technique [0002] Nylon material has excellent mechanical properties, and at the same time has the advantages of wear resistance, oil resistance, solvent resistance, self-lubrication, self-extinguishing, corrosion resistance and good processing performance. It is currently widely used in all aspects of production and life. Currently the largest amount of engineering plastics. [0003] At present, most of the fastener systems of rail transit at home and abroad use plastic parts produced by nylon materials. Parts and components made of nylon materials are not only easy to install, maintain and replace, but also have the characteristics of no rust, good electrical insulation, and wear resistance. However, as a hygroscopic polymer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L77/10C08K13/04C08K7/14C08K7/06C08K3/34C08K3/36C08K7/18
CPCC08K13/04C08K3/34C08K3/36C08K7/06C08K7/14C08K7/18C08K2201/005C08L77/06C08L2201/08C08L77/02C08L77/10
Inventor 宋克东姚峰王雄刚邓程方左景奇黄安民
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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