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Thermosetting resin composition and preparation method and using method thereof

A resin composition, thermosetting technology, applied in the direction of track, track maintenance, ballast layer, etc., to achieve the effect of easy industrialization, simple operation, and good resistance to ultraviolet radiation

Inactive Publication Date: 2011-03-16
CHANGSHU JIAFA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the special requirements of the track slab connection material, the existing materials, whether it is epoxy resin, polyurethane resin, unsaturated resin or thermoplastic elastomer material, cannot fully meet the above performance requirements

Method used

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  • Thermosetting resin composition and preparation method and using method thereof
  • Thermosetting resin composition and preparation method and using method thereof
  • Thermosetting resin composition and preparation method and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In the high-speed dispersion mixing tank, drop into bisphenol A type epoxy resin (E-51) 100kg, glycidyl ether type flexible epoxy resin (Changshu Jiafa Chemical Co., Ltd. JEf-0221) 20kg, hexanediol glycidol Ether type epoxy resin (Changshu Jiafa Chemical Co., Ltd. JX-025) 15kg, carbon black 0.1kg, talcum powder 100kg, defoamer A-530 (Germany BYK Chemicals) 0.1kg, coupling agent KH-5601kg, in The rotation speed is 1000-1600 rpm, and the mixture is mixed for 1 hour at 25-40°C, and the output is packaged as component A, the viscosity is 21000mpa.s, and the temperature is 25°C.

[0040] Add 340g of isophoronediamine (IPDA) into the reaction kettle, stir and heat up to 60-80°C, add dropwise alicyclic glycidyl ether epoxy resin (JEw-0110 from Changshu Jafa Chemical Co., Ltd.), butyl Glycidyl ether (BGE) 160kg, keep the reaction for 3-5 hours, add 101010g of antioxidant, defoaming and discharging at -0.1MPa as class B, viscosity 1500mpa.s, 25℃.

[0041] After the track plate ...

Embodiment 2

[0046] Add 100kg of propylene glycol-terminated polyoxypropylene and oxyethylene copolymer with a molecular weight of 1500-1600 into the reactor, and SnCl 4 0.6kg, stir and heat up to 50°C, add alicyclic epoxy resin JEw-012116kg, bisphenol A epoxy resin E-51 (average molecular weight 380) 18kg within 2 to 3 hours, react for 3 hours, then add molecular weight 400 ~500 propylene glycol capped polyoxypropylene 30kg, 400-600 mesh quartz powder 100kg, coupling agent KH5601.5kg, stirring and heating up at 100~120°C, removing low volatile matter at -0.1MPa, cooling in a three-roll mill Grind and discharge as component A for packaging. The tested hydroxyl equivalent is 1200g / mol, and the viscosity is 24000mpa.s25°C.

[0047] Add 100kg of glycerol-terminated polyoxypropylene and ethylene oxide copolymer with a molecular weight of 1500-1600, 23kg of 2,4-toluene diisocyanate, and 0.01kg of stannous octoate into the reaction kettle, stir and heat up to 50-80°C, and maintain the reaction f...

Embodiment 3

[0053] Add alicyclic epoxy resin JEw-012020kg, flexible epoxy resin JEf-022115kg, bisphenol A epoxy resin E-5165kg, hydroquinone 0.2kg, triphenylphosphine 0.5kg, acrylic acid 22.2kg in the reaction kettle , 13.8kg of methacrylic acid, react at 100-130°C for 5 hours, cool down at 40-60°C, add 10kg of butyl acrylate, 40kg of styrene, 100kg of 400-600 mesh talc powder, stir evenly, grind and disperse the material through a three-roll mill Packaged as component A, viscosity 10500mpa.s25℃.

[0054] Same as Example 2, after the height of the track plate is adjusted, the gap between the two track plates is sealed, and the sides of the track plates on both sides are coated with epoxy resin adhesive. After the adhesive starts to produce gel, start to stir the above component A, and then add group B Divide methyl ethyl ketone peroxide (A:B=100:0.5-1.5), cobalt isooctanoate (A component 0.2-0.5%), continue to stir for 3-5 minutes and pour it into the gap between the end faces of the two ...

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Abstract

The invention discloses a thermosetting resin composition and a preparation method and a using method thereof. The composition comprises a substance A and a substance B in a mass ratio of 100:1-100, wherein the substance B is a curing agent; the substance A consists of the following components in part by weight: 100 parts of thermosetting resin, 10 to 600 parts of filler, 1 to 10 parts of pigment, 0 to 100 parts of activated or non-activated thinner, 0 to 5 parts of ultraviolet absorbent, 0 to 5 parts of antioxidant, 0 to 2 parts of antifoaming agent and 0 to 5 parts of coupling agent; all the components of the substance A are stirred at the temperature of between 5 and 180 DEG C and the stirring rate of 10 to 3,000 revolutions per minute and mixed in vacuum for 0.1 to 10 hours and the substance A is obtained by packaging the mixture; and the substance B is obtained by packaging the curing agent. The composition is used as an elastic filling connection material among ballastless trackslabs of a railway and has high adhesion, ultraviolet irradiation resistance, wet and heat ageing resistance and chemical corrosion resistance, and certain elasticity and mechanical strength.

Description

technical field [0001] The invention relates to a thermosetting resin composition, in particular to a thermosetting resin composition used for connecting substrates of a CRTS III type ballastless track track. In addition, the present invention also relates to methods for preparing and using the above-mentioned thermosetting resin composition. Background technique [0002] In recent years, my country's high-speed railway construction has achieved rapid development, and both the completed mileage and the lines under construction are in the forefront of the world. [0003] At present, my country's high-speed railway construction mode mainly has two structural forms. One is the CRTS I type track technology using Japanese technology. A polyester non-woven fabric perfusion bag is placed between the board and the base, and the bag is filled with emulsified asphalt mortar with certain elasticity. The convex block is solved by filling the filling resin with good elasticity and durabi...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08L75/04C08L51/08E01B29/00E01B1/00
Inventor 梁平辉苏浩邓卫东
Owner CHANGSHU JIAFA CHEM
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