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A kind of water-reactive one-component environment-friendly polyurethane grouting resin and production method

A reactive, one-component technology, applied in the field of grouting resin, can solve the problems of increasing the complexity of product production, easy to block equipment, complicated equipment cleaning, etc., to achieve flexible and simple construction, long-term blocking effect, resistance to High compressive effect

Active Publication Date: 2022-07-26
苏州栌槟高新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Two-component grouting resin is a relatively common polymer grouting material at present. From the perspective of material preparation, components A and B are produced separately, which increases the complexity of product production; from the perspective of construction, the grouting construction The requirements for equipment are relatively high, and dual-liquid material injection pumps and injection guns are required. The equipment is easily blocked, and after the construction is completed, the cleaning of the equipment is more complicated.

Method used

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  • A kind of water-reactive one-component environment-friendly polyurethane grouting resin and production method
  • A kind of water-reactive one-component environment-friendly polyurethane grouting resin and production method
  • A kind of water-reactive one-component environment-friendly polyurethane grouting resin and production method

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Experimental program
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Effect test

Embodiment 1

[0021] The water-reactive one-component environment-friendly polyurethane grouting resin according to the present invention adopts the technical scheme that a non-TDI-based polymer is used as the main resin component, and an environment-friendly high-boiling-point diluent, non-PAEs enhancer is assisted. It is formulated with plasticizer, silicone foam stabilizer, balanced foaming gel catalyst and flame retardant.

[0022] The non-TDI-based polymer is a -NCO-terminated polyurethane prepolymer formed by the polymerization of diphenylmethane diisocyanate (MDI), isophorone diisocyanate (IPDI) monomer and oligomer polyol, Described diphenylmethane diisocyanate (MDI) selects the one produced by Yantai Wanhua for use Described isophorone diisocyanate (IPDI) selects Covestro to produce 1, the oligomer polyol is polycaprolactone diol (PCL), and the polycaprolactone diol (PCL) is selected in PLACCEL 210N and PLACCEL 205H produced by Japan DAICEL with a molecular weight in the range o...

Embodiment 2

[0038] A method for producing a water-reactive one-component environment-friendly polyurethane grouting resin, characterized in that the method comprises the following steps:

[0039] Step 1: Raw material treatment: PLACCEL 210N is dehydrated for 2 hours in a vacuum drying oven at 90°C and a vacuum degree of 0.1MPa before use; mixed dibasic acid ester (DBE), propylene carbonate, tributyl citrate, 2 ,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB) was soaked with molecular sieve; diphenylmethane diisocyanate (MDI) and isophorone diisocyanate (IPDI) were used directly;

[0040] Step 2: Preparation of polyurethane prepolymer: PLACCEL 210N was put into a reaction kettle with a thermometer, stirring device, condensation reflux tube, constant pressure dropping funnel, and nitrogen ventilation device according to the formula ratio, and the temperature of the reaction kettle was raised to 80 ° C; at this temperature, isophorone diisocyanate (IPDI) was added dropwise to the reactor,...

Embodiment 3

[0047] A method for producing a water-reactive one-component environment-friendly polyurethane grouting resin, characterized in that the method comprises the following steps:

[0048] Step 1: Raw material treatment: PLACCEL 205H was dehydrated for 2 hours in a vacuum drying oven at 90°C and a vacuum degree of 0.1MPa before use; mixed dibasic acid ester (DBE), propylene carbonate, tributyl citrate, 2 ,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB) was soaked with molecular sieve; diphenylmethane diisocyanate (MDI) and isophorone diisocyanate (IPDI) were used directly;

[0049] Step 2: Preparation of polyurethane prepolymer: PLACCEL 205H was put into a reaction kettle with a thermometer, stirring device, condensation reflux tube, constant pressure dropping funnel, and nitrogen ventilation device according to the formula ratio, and the temperature of the reaction kettle was raised to 80 ° C; at this temperature, isophorone diisocyanate (IPDI) was added dropwise to the reactor...

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Abstract

The invention relates to a water-reactive one-component environment-friendly polyurethane grouting resin and a production method. The technical solution adopted is to use non-TDI polymer as the main resin component, supplemented by environmentally friendly high-boiling point diluents, non-PAEs plasticizers, silicone foam stabilizers, balanced foaming gel catalysts, flame retardants formulated. The invention provides a water-inverse one-component environment-friendly polyurethane grouting resin material which does not contain TDI free monomer and PAEs type plasticizer and can be transported as general cargo. In the grouting construction project, the catalyst can be added reasonably according to the needs, the foaming speed can be adjusted, and the construction is flexible and simple; the hydrophobic closed-cell foam structure formed by curing has high compressive strength, and has an excellent sealing effect on the cracks of the building structure, and It has a long-term sealing effect on the leakage of water bodies in the cracks.

Description

technical field [0001] The invention relates to the technical field of grouting resin, in particular to a water-reactive one-component environment-friendly polyurethane grouting resin and a production method. Background technique [0002] Grouting and water blocking is the use of high-pressure mechanical power to inject chemical grouting materials into the cracks of the building structure. When the grout encounters the moisture in the cracks, it will quickly disperse, emulsify, expand and consolidate, and the consolidated foam structure fills the building. Cracks in the structure completely block the water flow outside the building structure, so as to achieve the purpose of stopping water and leakage. The consolidated foam can act as chemical link, high-strength anchor bolt, and high-pressure filling for cracks. [0003] Polyurethane grouting resin can be divided into two-component grouting resin and one-component grouting resin. Generally speaking, two-component grouting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/75C08G18/76C08G18/66C08G18/42C08G18/32C08G18/10C08G101/00
CPCC08G18/724C08G18/755C08G18/7671C08G18/6655C08G18/4277C08G18/10C08G2101/00C08G18/3271
Inventor 岳瑞峰
Owner 苏州栌槟高新材料技术有限公司
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