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Method for preparing composite curing agent modified bisphenol F thermosetting adhesive repairing agent special for ballastless track gap and crack damage

A technology of composite curing agent and ballastless track, which is applied in the direction of adhesive, track, track maintenance, etc., can solve the problems of unable to meet the rapid repair of damaged parts, small shrinkage, bond strength, slow curing reaction speed, etc., and achieve thin layer curing Strong ability, good anti-aging performance, and short gel time

Active Publication Date: 2012-06-27
ANHUI ZHONGTIE ENGINEER MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The epoxy resin repair materials disclosed by CN02132751.3 and CN03113923.X have the characteristics of compression resistance after curing, high tensile strength, small shrinkage rate and high bond strength, but there are slow curing reaction speed and high temperature, The shortcomings of high viscosity and slow fluidity cannot meet the needs of rapid repair of damaged parts

Method used

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  • Method for preparing composite curing agent modified bisphenol F thermosetting adhesive repairing agent special for ballastless track gap and crack damage
  • Method for preparing composite curing agent modified bisphenol F thermosetting adhesive repairing agent special for ballastless track gap and crack damage
  • Method for preparing composite curing agent modified bisphenol F thermosetting adhesive repairing agent special for ballastless track gap and crack damage

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Effect test

Embodiment 1

[0019] Embodiment 1: The preparation method of the special composite curing agent modified bisphenol F thermosetting adhesive repair agent for ballastless track away from the crack damage, including:

[0020] (1) Preparation of bisphenol F epoxy resin main agent: 100Kg bisphenol F diglycidyl ether, 50Kg reactive diluent 1,6-hexanediol diglycidyl ether were added to the reaction kettle, stirred and dissolved at 40°C, The main agent of bisphenol F epoxy resin with a viscosity of 75mPa·S was prepared

[0021] (2) Synthesis of polythiol-amine composite curing agent: 20Kg 2-2'-dimercaptoethyl sulfide, 25Kg trimethylolpropane triacrylate and 0.25Kg triethylamine are placed in a nitrogen-protected reactor In the middle, stir and react at 60°C for 7 hours, then add 215Kg 105 amine epoxy curing agent, stir evenly and keep it warm for 1.5 hours to obtain a composite curing agent with a viscosity of 10mPa·S;

[0022] (3) Bisphenol F epoxy resin cured by polythiol-amine composite modifie...

Embodiment 2

[0023] Embodiment 2: The preparation method of the special composite curing agent modified bisphenol F thermosetting adhesive repair agent for ballastless track away from the crack damage, including:

[0024] (1) Preparation of main ingredient of bisphenol F epoxy resin: Add 100Kg of bisphenol F diglycidyl ether and 75Kg of active diluent 1,6-hexanediol diglycidyl ether into the reaction kettle, stir and dissolve at 40°C , to prepare a viscosity of 65mPa·S bisphenol F epoxy resin main agent;

[0025] (2) Synthesis of polythiol-amine composite curing agent: 20Kg 2-2'-dimercaptoethyl sulfide, 25Kg trimethylolpropane triacrylate and 0.25Kg triethylamine are placed in a nitrogen-protected reactor In the middle, stir and react at 60°C for 7 hours, then add 200Kg of amine curing agent, stir evenly and keep it warm for 1.5 hours to obtain a composite curing agent with a viscosity of 10mPa·S;

[0026] (3) Bisphenol F epoxy resin cured by polythiol-amine composite modified curing agen...

Embodiment 3

[0027] Embodiment 3: The preparation method of the special composite curing agent modified bisphenol F thermosetting adhesive repairing agent for ballastless track away from the crack damage, including:

[0028] (1) Preparation of bisphenol F epoxy resin main agent: 100Kg bisphenol F diglycidyl ether, 50Kg reactive diluent 1,4-butanediol diglycidyl ether were added to the reaction kettle, stirred and dissolved at 40°C, The prepared viscosity is 75mPa·S bisphenol F epoxy resin main agent;

[0029] (2) Synthesis of polythiol-amine composite curing agent: 2-2'-dimercaptoethyl sulfide, 25Kg of trimethylolpropane triacrylate and 0.5Kg triethylamine are placed under nitrogen protection In a reaction kettle, stir and react at 60°C for 8 hours, then add 200Kg of amine curing agent, stir evenly and keep it warm for 1 hour to obtain a composite curing agent with a viscosity of 10mPa·S;

[0030] (3) Bisphenol F epoxy resin cured by polythiol-amine composite modified curing agent: Take 1...

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Abstract

The invention discloses a method for preparing a composite curing agent modified bisphenol F thermosetting adhesive repairing agent special for ballastless track gap and crack damage. The method comprises three steps of: preparing a bisphenol F epoxy resin main agent, compositing a polythiol-aminal type composite modified curing agent and curing the bisphenol F epoxy resin by the polythiol-aminaltype composite modified curing agent. The repairing agent prepared by the method has the characteristics of low viscosity, low curing temperature, rapid curing, stable volume stability and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a preparation method of a bisphenol F thermosetting adhesive repair agent modified by a special composite curing agent for ballastless track from crack damage. The prepared quick repair agent can be widely used in high-speed railway ballastless Repair of rail CRTS I and CRTS II types of seams and crack damage. Background technique [0002] High-speed railway construction is a complex system engineering. Due to various effects such as poor construction, train dynamic load, rain and snow erosion, and ambient temperature, ballastless tracks will inevitably produce such as concrete interface damage, CA mortar erosion by water, separation Seams and cracks and other diseases. The damage to the ballastless track filling layer will seriously affect the normal use of the track. If it is not repaired in time, under the action of various deterioration factors, the cr...

Claims

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Application Information

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IPC IPC(8): C09J163/00C08G59/66E01B31/00
Inventor 宿万王宇峰黄玉华黄海汪志勇陈钱宝
Owner ANHUI ZHONGTIE ENGINEER MATERIAL SCI & TECH CO LTD
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