Glass fiber reinforced polyurethane

A technology of glass fiber and polyurethane, which is applied in the field of insulating elastic gaskets for high-speed rail rails, can solve the problems of rubber gaskets such as low elastic modulus, insufficient impact resistance, and insufficient rigidity, so as to ensure stability, good aging resistance, and elasticity The effect of large modulus

Inactive Publication Date: 2018-03-27
王翔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing gaskets mainly include plastic gaskets and rubber gaskets. Compared with plastic gaskets, the impact resistance is insufficient, and the elastic modulus of rubber gaskets is too low, and the rigidity is insufficient. Function

Method used

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  • Glass fiber reinforced polyurethane
  • Glass fiber reinforced polyurethane
  • Glass fiber reinforced polyurethane

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0029] Specific embodiment 1: as figure 1 figure 2 As shown, this embodiment discloses a high-speed rail rail insulating elastic sheet, including a bottom layer 1 and a surface layer 2. The surface layer 2 is an arc-shaped structure with a thick middle and thin sides, and the thickness in the middle of the elastic sheet is 10 mm. 1 has a thickness of 3mm.

[0030] The two ends of the high-speed rail insulating elastic sheet are provided with a convex layer 3, and the height of the convex part is 2mm. The surface layer 2 is provided with a textured structure, and the textured depth is 1mm. The textured structure can be It is in any shape, and the surface of the bottom layer 1 is provided with a groove structure.

[0031] The high-speed rail rail insulation elastic sheet is a glass fiber reinforced polyurethane material, and the preparation method is as follows:

[0032] Step 1: Preparation of prepreg, melting the resin matrix, coupling agent, and toughening agent in a melti...

specific Embodiment 2

[0037] Specific embodiment 2: as figure 1 figure 2 As shown, this embodiment discloses a high-speed rail rail insulating elastic sheet, including a bottom layer 1 and a surface layer 2. The surface layer 2 is an arc-shaped structure with a thick middle and thin sides, and the thickness in the middle of the elastic sheet is 15 mm. 1 has a thickness of 10mm.

[0038] The two ends of the high-speed iron rail insulating elastic sheet are provided with a convex layer 3, and the height of the convex part is 5 mm. The surface layer 2 is provided with a textured structure, and the textured depth is 5 mm. The textured structure can be It is in any shape, and the surface of the bottom layer 1 is provided with a groove structure.

[0039] The high-speed rail rail insulation elastic sheet is a glass fiber reinforced polyurethane material, and the preparation method is as follows:

[0040] Step 1: Preparation of prepreg, melting the resin matrix, coupling agent, and toughening agent in...

specific Embodiment 3

[0045] Specific embodiment 3: as figure 1 figure 2 As shown, this embodiment discloses a high-speed rail rail insulating elastic sheet, including a bottom layer 1 and a surface layer 2. The surface layer 2 is an arc-shaped structure with a thick middle and thin sides. The thickness in the middle of the elastic sheet is 12mm. 1 has a thickness of 7mm.

[0046] The two ends of the high-speed iron rail insulating elastic sheet are provided with a convex layer 3, and the height of the convex part is 3mm. The surface layer 2 is provided with a textured structure, and the textured depth is 3mm. The textured structure can be It is in any shape, and the surface of the bottom layer 1 is provided with a groove structure.

[0047] The high-speed rail rail insulation elastic sheet is a glass fiber reinforced polyurethane material, and the preparation method is as follows:

[0048] Step 1: Preparation of prepreg, melting the resin matrix, coupling agent, and toughening agent in a melti...

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Abstract

The invention discloses glass fiber reinforced polyurethane, which belongs to the field of materials. The glass fiber reinforced polyurethane is applied to a high-speed train steel rail insulation elastic strip, and is prepared from the raw materials: 100 parts of resin matrix, 10 to 25 parts of glass fiber, 0.01 to 5 parts of coupling agent, and 0.01 to 5 parts of flexibilizer.

Description

[0001] This application is a divisional application with application number 2016103765964, name: a high-speed rail rail insulating elastic gasket, and the application date is May 31, 2016. technical field [0002] The invention relates to the technical field of railway track circuits, in particular to an insulating elastic gasket for high-speed rail rails. Background technique [0003] The rail insulating elastic gasket is located between the rail and the sleeper, which plays the role of buffering the pressure of the rail on the sleeper and insulating it. It is the main component of the track circuit. In addition to good insulation properties, on the other hand, it should also have sufficiently excellent mechanical properties, such as sufficient impact resistance, compressive properties, high elastic modulus, and at the same time, it should have sufficient aging resistance and absorption properties, and it can be used for a long time. Guarantee that the gasket can work norma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L61/24C08L63/00C08K7/14E01B9/68
CPCC08K7/14E01B9/683E01B2205/00C08L61/06C08L61/24C08L63/00C08L75/04
Inventor 王翔
Owner 王翔
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