Resin composition for filling unit plate type ballastless track convex baffling platform

A technology of resin composition and mixture, applied in the directions of track, track maintenance, laying track, etc., can solve the problems of insufficient toughness, poor water resistance and aging resistance, and poor low temperature resistance, and achieves improved water resistance and aging resistance. The effect of improving water resistance and aging resistance, reasonable stiffness and elasticity

Active Publication Date: 2009-12-30
CHINA ACADEMY OF RAILWAY SCI CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyurethane resin materials currently used have the following disadvantages: (1) poor water resistance and aging resistance, which cannot meet the long service life requirements of high-speed railway construction; (2) poor low temperature resistance, which cannot meet the use in severe cold regions (3) more fillers are added to the existing polyurethane resin, which is prone to sedimentation during storage, which seriously affects the stirring process during use; (4) the reaction speed of the existing polyurethane resin used on site is affected by the ambient temperature The impact is relatively large, the reaction speed cannot be adjusted, and it cannot adapt to construction under extreme temperatures
However, compared with polyurethane resin materials, the disadvantages of epoxy resin, unsaturated polyester materials or vinyl resin materials are insufficient toughness, narrow elastic adjustment range, and it is difficult to achieve ideal elastic toughness even through toughening modification

Method used

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  • Resin composition for filling unit plate type ballastless track convex baffling platform
  • Resin composition for filling unit plate type ballastless track convex baffling platform
  • Resin composition for filling unit plate type ballastless track convex baffling platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1 (applied to Wuhan-Guangzhou Passenger Dedicated Line)

[0053] Production: (consumption is calculated in parts by weight)

[0054] Component A: 100 parts of hydroxyl-terminated polybutadiene (hydroxyl value 1.03mmolKOH), 3 parts of chain extender 1,4-butanediol (Shanghai Gaoqiao Petrochemical), 30 parts of dibutyl phthalate, 40 parts of clay 0.2 parts of antifoaming agent BYK-066N (produced by BYK Company in Germany), 1 part of antioxidant 1010, 1 part of ultraviolet absorber UV-327, 1 part of white carbon black, 0.01 part of catalyst dibutyltin dilaurate, using three Grinding with a roller mill, using an anchor stirring device in the reactor, the rotation speed is 80 rpm, the temperature is 90°C, the vacuum degree is -0.09MPa, and the heating and vacuuming time is 6 hours. Cool to 60°C, pack and store.

[0055] Component B: 15 parts of PM-200 (manufactured by Yantai Wanhua), in airtight packaging.

[0056] Construction: first clean up the sundries betwe...

Embodiment 2

[0062] Embodiment 2 (applied to Wuhan-Guangzhou Passenger Dedicated Line)

[0063] Production: (consumption is calculated in parts by weight)

[0064] Component A: polymer diol POP05 / 45 (vinyl copolymer graft modified polyether diol, Tianjin Sanpei Chemical, hydroxyl value 20.5mgKOH) 100 parts, chain extender 1,4-butanediol 6 parts, 30 parts of dibutyl phthalate, 45 parts of silicon micropowder, 0.2 parts of defoamer BYK-066N (produced by German BYK company), 1 part of antioxidant 1010, 1 part of ultraviolet absorber UV-327, white 1 part of carbon black, 0.01 part of catalyst dibutyltin dilaurate, use colloid mill to disperse the filler, use anchor stirring equipment in the reactor, rotate at 100 rpm, temperature 110°C, vacuum degree -0.09MPa, heating and vacuuming time 4 Hour. Cool to 60°C, pack and store.

[0065] Component B: 12 ​​parts of PM-200 (manufactured by Yantai Wanhua), in airtight packaging.

[0066] Construction: first clean up the sundries between the track ...

Embodiment 3

[0073] Embodiment 3 (applied to the test section of Harbin-Suifenhe line)

[0074] Production: (consumption is calculated in parts by weight)

[0075] Component A: 100 parts of hydroxyl-terminated polybutadiene (hydroxyl value 0.73mmolKOH), 5 parts of chain extender ethylene glycol, 30 parts of dioctyl sebacate, 45 parts of silicon micropowder, defoamer BYK-066N (Germany Produced by BYK company) 0.2 part, 1 part of antioxidant 1010, 1 part of white carbon black, 1 part of ultraviolet absorber UV-3271, adopt colloid mill to disperse filler, adopt anchor type stirring equipment in the reactor, rotating speed 100 rev / mins, temperature 110°C, vacuum degree -0.09Mpa, heating and vacuuming time for 4 hours. Cool to 60°C, pack and store.

[0076] Component B: 16 parts of PM-200 (manufactured by Yantai Wanhua), in airtight packaging.

[0077] Component C: 0.01-0.05 parts of dibutyltin dilaurate is used as the catalyst.

[0078]Construction: first clean up the sundries between the ...

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Abstract

The invention provides a resin composition for filling a unit plate type ballastless track convex baffling platform, a preparation method and a using method thereof. The resin composition comprises a component A and a component B, and calculated according to parts by weight, the component A comprises: 100 parts of polyolefin polyhydric alcohol, 10 to 100 parts of filler, 10 to 80 parts of plasticizer, 1 to 10 parts of thixotropic agent, 5 to 20 parts of chain extender, 0 to 5 parts of antiager and 0 to 2 parts of defoaming agent; and the component B comprises 5 to 50 parts of isocyanate. The resin composition can have the function of positioning the track plate and transferring load with the convex baffling platform after being cured. The resin composition adopts the polyolefin polyhydric alcohol as main body material, can improve the waterproof, low-temperature resistant and antiaging characteristics of the polyurethane material and prolongs the service life of the product.

Description

technical field [0001] The invention relates to a resin composition used for filling, in particular to a resin composition used for filling a convex block of a unit plate ballastless track. Background technique [0002] my country is constructing large-scale passenger dedicated lines and high-speed railways. By 2020, the goal is to build 10,000 kilometers of passenger dedicated lines, form the skeleton of "four vertical and four horizontal" passenger dedicated lines, and build rapid passenger transport in the Bohai Rim, Yangtze River Delta, and Pearl River Delta regions. The system railway is 2000 kilometers. According to the design speed, passenger dedicated lines are divided into two types: 250 km / h and 350 km / h. According to the track structure, they are divided into two types: ballasted track and ballastless track. The structure of the ballasted track is subgrade-ballast- Sleeper-steel rail, the structure of ballastless track from bottom to top is subgrade-concrete base-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/65C08G18/62C08G18/24C08K13/02C08K5/12C08K5/11C08K3/34E01B29/42
Inventor 毛昆朋吴智强吴绍利潘安徽
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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