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Passenger dedicated line fastener system nylon part low temperature resistant special material and fabrication method thereof

A low-temperature-resistant technology for passenger dedicated lines, applied in the field of low-temperature-resistant special materials for nylon parts of the passenger dedicated line fastener system and its preparation, to achieve good insulation, simple manufacture, and good toughness

Inactive Publication Date: 2009-12-23
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no domestic manufacturers producing special materials for low temperature resistance of nylon parts for passenger dedicated lines and the literature and reports on its products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The mass portion of nylon 6 resin is 50, the mass portion of nylon 12 resin is 50, the mass portion of maleic anhydride grafted POE is 15, the mass portion of maleic anhydride grafted EPDM is 3, the mass portion of ethylene-octyl copolymer 5 parts, antioxidant 1098 / 168 parts by mass is 0.2 / 0.1, lubricant EBS / TAF / silicone masterbatch is 0.2 / 0.3 / 0.1, coupling agent KH550 is 0.3 parts by mass, in high speed mixing Mix evenly in the machine at room temperature, produce with FY35 experimental twin-screw extruder produced by Nanjing Fuya, the glass fiber mass part is 30, and add from the first exhaust port. The processing temperature (from the feeding port to the die head) is 270°C, 280°C, 280°C, 280°C, 280°C, 280°C, 280°C, 270°C, 270°C, and the speed of the main engine is 300 rpm. Listed in Table 1. Examples.

[0025] Dry the granulated modified material and put it into an injection molding machine for molding processing. During the injection molding process: temperature 28...

Embodiment 2

[0027] The mass parts of nylon 6 resin is 50, the mass parts of nylon 12 resin is 50, the mass parts of maleic anhydride grafted POE is 15, the mass parts of maleic anhydride grafted EPDM is 3, the mass parts of EPDM rubber 5, antioxidant 1098 / 168 mass parts is 0.2 / 0.1, lubricant EBS / TAF / silicone masterbatch mass parts is 0.2 / 0.3 / 0.05, coupling agent KH550 mass parts is 0.3, in high-speed mixer Mix evenly at medium room temperature, produce with FY35 experimental twin-screw extruder produced by Nanjing Fuya, the glass fiber mass part is 30, and add from the first exhaust port. The processing temperature (from the feeding port to the die head) is 270°C, 280°C, 280°C, 280°C, 280°C, 280°C, 280°C, 270°C, 270°C, and the speed of the main engine is 300 rpm. Listed in Table 1. Examples.

[0028] Dry the granulated modified material and put it into an injection molding machine for molding processing. During the injection molding process: temperature 280°C, pressure 120MPa, pressure h...

Embodiment 3

[0030] The mass portion of nylon 6 resin is 50, the mass portion of nylon 12 resin is 50, the mass portion of maleic anhydride grafted POE is 15, the mass portion of maleic anhydride grafted EPDM is 3, and the mass portion of polyester elastomer is 5. The mass part of antioxidant 1098 / 168 is 0.2 / 0.1, the mass part of lubricant EBS / TAF / silicone masterbatch is 0.2 / 0.5 / 0.1, the mass part of coupling agent KH550 is 0.3, in the high-speed mixer Mix evenly at room temperature, produce with FY35 experimental twin-screw extruder produced by Nanjing Fuya, the mass part of glass fiber is 30, and add from the first exhaust port. The processing temperature (from the feeding port to the die head) is 270°C, 280°C, 280°C, 280°C, 280°C, 280°C, 280°C, 270°C, 270°C, and the speed of the main engine is 300 rpm. Listed in Table 1. Examples.

[0031] Dry the granulated modified material and put it into an injection molding machine for molding processing. During the injection molding process: temp...

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PUM

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Abstract

The invention discloses a passenger dedicated line fastener system nylon part low temperature resistant special material and a fabrication method thereof. According to mass portions, the material consists of the following components: 50-100 portion of nylon resin, 1-50 portions of special resin, 5-30 portions of elastomer, 5-30 portions of toughening agent, 30-40 portions of glass fiber and 0.1-3 portions of other additives. The passenger dedicated line nylon part is produced by injection molding. The material has high strength, good toughness, good insulating property, resistance to low temperature and other excellent performances. The product can maintain various performance indexes of normal temperature under a minus 40 DEG C environment and is simple in production as well as recyclable.

Description

technical field [0001] The invention relates to a low-temperature-resistant special material for nylon parts of a fastener system for passenger dedicated lines and a preparation method thereof. Background technique [0002] The low temperature resistant special material for nylon parts of the passenger dedicated line fastening system is mainly used to fix the rail, prevent the longitudinal and lateral displacement of the rail, and prevent the rail from tipping over, which is crucial to the safe operation of the railway. In recent years, with the rapid development of my country's railways, the carrying capacity and speed of passenger dedicated lines have been continuously improved, and the quality requirements for nylon fasteners for passenger dedicated lines have also increased. With the extension of my country's railway lines, the temperature difference between different regions is large, especially in winter, the climate in the north is cold, the lowest can reach about -40...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08L23/06C08L27/18C08L71/12C08L67/00C08L51/06C08K13/04C08K7/14B29B9/06B29C47/92B29C45/76
Inventor 曹喆唐志才邓凯桓黄安民
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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