High polymer composite for embedded rail system

An embedded track and composite material technology, applied in the field of polymer composite materials, can solve the problems that cannot meet the three-way rigidity of the embedded track system, the construction process performance of vibration and noise reduction, and environmental protection, and achieve excellent temperature stability , high insulation resistance, and low water expansion

Active Publication Date: 2013-10-16
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a polymer composite material that can replace the traditional fastener system and be used in the embedded track system, so as to solve the problem that the existing polymer materials cannot meet the three-way rigidity, vibration and noise reduction requirements of the embedded track system. , construction process performance and environmental protection, etc., so as to effectively solve the problems existing in the above-mentioned prior art

Method used

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  • High polymer composite for embedded rail system
  • High polymer composite for embedded rail system
  • High polymer composite for embedded rail system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: This example is a cast-in-place polymer composite.

[0039] Divide 100g of base material into two components, A and B, each 50g.

[0040] The specific steps are:

[0041] 1. Mixing of material A: mix components A and B of the base material at room temperature, stir for 1 minute, add 8 g of damping liquid, and mix and stir for 1 minute;

[0042] 2. Mixing material B: 20g of rubber particles (3-4mm in particle size), 8g of cork powder (100 mesh), 5g of slag (0.1-1mm in particle size), 6g of expanded perlite (0.5-1mm in particle size), cement Put 7g of expanded perlite (particle size 0.5-1mm) into a high-speed mixer and mix for 1min at room temperature;

[0043] 3. Pour the mixed material A into material B, then add 3g of polyoxyethylene oxypropylene glycerin, 4g of carbon black (N330), 6g of DOP, and mix and stir for 1min at room temperature;

[0044] 4. Pour the uniformly mixed material liquid in step 3 into the rail bearing groove coated with adhesive, an...

Embodiment 2

[0048] Example 2: This example is a cast-in-place polymer composite.

[0049] Divide 100g of base material into component A and component B, each 50g.

[0050] The specific steps are:

[0051] 1. Mixing of material A: Mix components A and B of the base material, stir for 1 minute, add 25g of damping liquid, and mix and stir for 1 minute;

[0052] 2. Mixing material B: 30g of rubber particles (with a particle size of 1-2mm), 8g of cork powder (50 mesh), 5g of slag (with a particle size of 0.5-1mm), 10g of expanded perlite (with a particle size of 1-2mm), cement Put 7g of expanded perlite (particle size 1-2mm) into a high-speed mixer and mix for 1min;

[0053] 3. Pour the mixed material A into material B, then add BYK 0660 3g, carbon black (N550) 4g, DOP 7g, mix and stir for 1min;

[0054] 4. Pour the uniformly mixed material liquid in step 3 into the rail bearing groove coated with adhesive, and cure at room temperature.

[0055] The test results are shown in Table 2:

[0...

Embodiment 3

[0057] Example 3: This example is a high temperature and pressure curing polymer composite material.

[0058] Specific steps:

[0059] 1. Mixing of material A: heat 100g of base material to 85°C, keep the temperature constant for 15min, add damping liquid and mix and stir for 1min;

[0060] 2. Mixing material B: 100g rubber particles (particle size 1-2mm), cork powder 50g (50 mesh), slag 15g (particle size 0.5-1mm), expanded perlite 11g (particle size 1-2mm), cement Put 20g of expanded perlite (particle size 0.5-1mm) into a high-speed mixer, mix for 1 minute, and put it in an oven at 85°C for 30 minutes at a constant temperature.

[0061] 3. Add 14g of curing agent (MOCA) at a temperature of 90°C to material B, and stir for 2 minutes.

[0062] 4. Pour material A into the mixture in step 3, add defoamer BYK 0660 5g, carbon black (N330) 6g, DOP 10g, mix and stir for 3 minutes, and keep the temperature at 85°C.

[0063] 5. Pour the mixture in step 4 into a mold with a tempe...

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Abstract

The invention discloses a high polymer composite for an embedded rail system, which comprises the following components by weight percentage: 100% of base material, a filling material, 2-25% of damping liquid, 0-15% of curing agent, an appropriate amount of defoaming agent, an appropriate amount of colorant and an appropriate amount of plasticizer, wherein the base material is polyurethane modified epoxy resin; the filling material comprises the following components by weight percentage: 20-100% of rubber particle, 5-200% of cork powder, 5-100% of slag, 5-60% of expanded perlite and 5-45% of cement expanded perlite. The high polymer composite can meet three-way rigidity requirements of the rail system, has good damping capacity and fatigue resistance, does not crack after three million fatigue tests, is excellent in electrical insulation, green and environment-friendly, and can be recycled and smashed as filling for repeated use.

Description

technical field [0001] The invention relates to a polymer composite material, in particular to a polymer composite material used in an embedded track system, and belongs to the technical field of polymer composite materials. [0002] Background technique [0003] Traditional ballastless track uses fasteners, discrete supports and fixed rails. The installation of fasteners is cumbersome and the construction process is complicated, which affects the surrounding environment and the construction efficiency is low; moreover, fasteners are easy to loosen during use and require frequent inspection and maintenance. In addition, during use, due to the impact load and vibration load of the train on the rails, a lot of noise is generated, which affects the production and life of the surrounding residents. [0004] The embedded track system uses polymer composite materials to cover the rails in the rail grooves, replacing traditional fasteners, and is used to continuously support and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L75/04C08L21/00C08L97/02C08K13/04C08K7/26
Inventor 冯克敏焦洪林费学梅何云伟杨刚罗炯
Owner CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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