Resin composition for CRTS (China Rail Traffic Summit) I type slab ballastless track and preparation method of resin composition

A resin composition and composition technology, applied in the field of filled resin compositions, can solve the problems of long required strength, long and limited maintenance time, etc., achieve the restoration of adjustment ability, solve the failure of fasteners, and reduce maintenance costs Effect

Active Publication Date: 2013-08-14
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1. The ability to adjust the uneven settlement of the subgrade is limited, and it can only adjust the uneven settlement below 30mm;
[0013] 2. The maintenance time is long, and it is difficult to meet the requirements of my country's high-speed railway maintenance skylight point;
[0014] 3. The skylight maintenance p

Method used

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  • Resin composition for CRTS (China Rail Traffic Summit) I type slab ballastless track and preparation method of resin composition
  • Resin composition for CRTS (China Rail Traffic Summit) I type slab ballastless track and preparation method of resin composition
  • Resin composition for CRTS (China Rail Traffic Summit) I type slab ballastless track and preparation method of resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Example 1 Preparation of Resin Polymer

[0065] 35kg vinyl resin polymer (including 20kg polymethyl methacrylate (PMMA resin) and 15kg acrylonitrile-butadiene-styrene copolymer (ABS resin)), 15kg reactive diluent ethyl methacrylate, 40kg Add non-rubber tougheners (including 30kg butyl methacrylate and 10kg diethylene glycol benzoate) into the reactor with a disperser, and stir until the pellets are completely dissolved. The temperature of the reactor is 40°C. The stirring speed of the disperser is 1400 rpm. Then lower the temperature of the reactor to room temperature, and add 40kg of self-made polyurethane-modified acrylate polymer (formed by polymerization of toluene diisocyanate (TDI) and hydroxyethyl acrylate) at the stirring speed of the disperser at 1800 rpm ), 25kg modified bisphenol A epoxy modified acrylic resin (Taiwan Double Bond Chemical Co., Ltd.), 18kg rubber toughening agent liquid nitrile rubber, 6kg catalyst cobalt naphthenate, 2kg ultraviolet absorbe...

Embodiment 2

[0075] Example 2 Preparation of Resin Polymer

[0076]100kg vinyl resin composition (including 40kg acrylic resin homopolymer (Taiwan Double Bond Chemical Co., Ltd.), 40kg polyurethane modified acrylic resin (DuPont Company) and 20kg novolac epoxy acrylic resin (Jinan Yisheng), 8kg reactive dilution Methyl acrylate, 48kg non-rubber toughening agent (including 20kg 2-methylhexyl acrylate, 18kg octyl methacrylate and 10kg dibutyl phthalate), 20kg rubber toughening agent neoprene, 2.0kg Catalyst N,N-diethylaniline, 2kg UV absorber 2-(5-chloro-2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)phenol , 3kg light stabilizer 4-benzoyloxy-2,2,6,6-tetramethylpiperidine, 3kg antioxidant triphenyl phosphite, 4kg coupling agent isopropyl three (dioctyl Pyrophosphate acyloxy) titanate and 10kg thixotropic agent gas-phase method white carbon black are added in the stainless steel reactor with disperser and stirred, wherein the temperature of reactor is 60 ℃, and the stirring speed of dispe...

Embodiment 3

[0081] Example 3 Preparation of Resin Polymer

[0082] 70kg vinyl resin composition (including 30kg acrylic resin copolymer (BASF) and 40kg polyether modified acrylate polymer (BASF), 50kg non-rubber toughening agent (including 20kg butyl methacrylate, 10kg formazan octyl acrylate, 10kg 2-methylhexyl acrylate and 10kg diethylene glycol benzoate), 15kg rubber toughening agent neoprene, 5kg catalyst N,N-diethylaniline, 2.5kg ultraviolet absorber ( 2-hydroxy-4-methoxyphenyl) phenyl ketone, 4kg light stabilizer bis(1,2,2,6,6-pentamethyl-4-pyridyl) sebacate, 2.5kg antioxidant Add diphenylisodecyl phosphite, 2kg coupling agent isopropyl tris(dioctyl pyrophosphate acyloxy) titanate and 20kg thixotropic agent nano silicon dioxide into a stainless steel reaction kettle with a disperser and stirring, wherein the temperature of the reaction kettle is 60° C., the stirring speed of the disperser is 1000 rpm, and the stirring is carried out until uniform, and the A component is prepared....

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PUM

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Abstract

The invention provides a resin composition and a preparation method of the resin composition. The resin composition comprises a component A, a component B and a component C, wherein the component A comprises the following substances in parts by weight: 70-200 parts of vinyl ester resin composition, 0-20 parts of active diluting agent, 0-50 parts of non-rubber toughening agent, 0-30 parts of rubber toughening agent, 0-20 parts of catalyst, 0-5 parts of ultraviolet absorber, 0-5 parts of light stabilizer, 0-5 parts of antioxidant, 0-5 parts of coupling agent and 0-50 parts of thixotropic agent; the component B comprises the following substance in parts by weight: 1-100 parts of peroxide initiator; the component C comprises the following substances in parts by weight: 120-500 parts of quartz sand and 0-200 parts of rubber particle; and the vinyl ester resin composition comprises vinyl ester resin polymer. The resin composition is matched with a CA mortar layer in performance and is previously prepared, a line with subgrade differential settlement of being over 30 mm can be conveniently and quickly maintained within actual maintenance skylight time, and the original line track structure is restored after the skylight is finished, and the traffic safety is guaranteed.

Description

technical field [0001] The invention relates to a resin composition used for filling, in particular to a resin composition used for rapid maintenance of CRTS type slab ballastless track settling and lifting and a preparation method thereof. Background technique [0002] In order to solve the problem of insufficient passenger transport capacity of my country's railway system, my country has formulated the "China Railway Medium and Long-term Development Plan", which requires that by 2020, my country will build 10,000 kilometers of passenger dedicated lines, forming the skeleton of "four vertical and four horizontal" passenger dedicated lines. The construction of passenger dedicated lines in my country generally adopts the form of high-speed railways, and a large number of high-speed railways in my country have adopted the slab ballastless track, which is one of the most advanced high-speed track structures in the world. CRTS Ⅰ type slab ballastless track, as one of the main sl...

Claims

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Application Information

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IPC IPC(8): C08L75/14C08L33/12C08L33/00C08L55/02C08L63/10C08L9/02C08L11/00C08L23/34C08K13/02C08K3/36C08K5/098
Inventor 吴绍利王鑫吴智强毛昆朋杜卫超陆方斌李艳伟
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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