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TS-29 hydrophilic polyurethane grouting material and preparation process thereof

A hydrophilic polyurethane, TS-29 technology, applied in the field of grouting plugging, can solve the problem of unsatisfactory secondary water plugging effect, and achieve the effect of good market prospect, good adhesion and good hydrophilicity

Pending Publication Date: 2020-12-01
四川童燊防水工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide TS-29 hydrophilic polyurethane grouting material, which solves the defects of the prior art that the solidified body shrinks with the evaporation of water, and the secondary water blocking effect is not ideal. It can foam when it encounters water, and has the advantages of Good adhesion, can realize secondary water shutoff

Method used

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  • TS-29 hydrophilic polyurethane grouting material and preparation process thereof
  • TS-29 hydrophilic polyurethane grouting material and preparation process thereof
  • TS-29 hydrophilic polyurethane grouting material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In this example, the TS-29 hydrophilic polyurethane grouting material consists of 25% polycyanate, 50% hydrophilic polyhydroxy polyether, 15% organic co-solvent, 1% activator , 0.5% catalyst, 5% plasticizer, 0.5% triaminotoluene and 3% propylene glycol.

[0042] The technological process for preparing TS-29 hydrophilic polyurethane grouting material with the above ratio of raw materials is as follows:

[0043] 1) Put the hydrophilic polyhydroxy polyether into the reaction kettle, raise the temperature to 95°C, stir, vacuumize to 0.1MPa for dehydration and degassing for 2.5 hours, and cool down to 53°C;

[0044] 2) Add polycyanate after step 1), react at a reaction temperature of 85°C for 2.5 hours, and cool down to 55°C;

[0045] 3) After step 2), add organic solvent (preferably adopt acetone), active agent (preferably adopt water-soluble silicone oil), catalyst (preferably adopt methylmorpholine), plasticizer (preferably adopt diethyl phthalate ), triaminotoluene and...

Embodiment 2

[0047] In this example, the TS-29 hydrophilic polyurethane grouting material consists of 50% polycyanate, 25% hydrophilic polyhydroxy polyether, 10% organic co-solvent, and 3% active agent by weight percentage. , 0.2% catalyst, 9% plasticizer, 0.7% triaminotoluene and 2.1% propylene glycol.

[0048] The technological process for preparing TS-29 hydrophilic polyurethane grouting material with the above ratio of raw materials is as follows:

[0049] 1) Put the hydrophilic polyhydroxy polyether into the reaction kettle, raise the temperature to 105°C, stir, evacuate to 0.2MPa for dehydration and degassing for 3 hours, and cool down to 50°C;

[0050] 2) Add polycyanate after step 1), and react for 3 hours at a reaction temperature of 75°C,

[0051] Cool down to 45°C;

[0052] 3) After step 2), add organic solvent (preferably adopt acetone), active agent (preferably adopt water-soluble silicone oil), catalyst (preferably adopt methylmorpholine), plasticizer (preferably adopt diet...

Embodiment 3

[0054] In this embodiment, the TS-29 hydrophilic polyurethane grouting material consists of 38% polycyanate, 30% hydrophilic polyhydroxy polyether, 20% organic co-solvent, and 1.8% active agent by weight percentage. , 0.8% catalyst, 8.1% plasticizer, 0.3% triaminotoluene and 1% propylene glycol.

[0055] The technological process for preparing TS-29 hydrophilic polyurethane grouting material with the above ratio of raw materials is as follows:

[0056] 1) Put the hydrophilic polyhydroxy polyether into the reaction kettle, raise the temperature to 100°C, stir, evacuate to 0.15MPa for dehydration and degassing for 2 hours and 50 minutes, and cool down to 51°C;

[0057] 2) Add polycyanate after step 1), react at a reaction temperature of 80°C for 2 hours and 40 minutes, and cool down to 50°C;

[0058] 3) After step 2), add organic solvent (preferably adopt acetone), active agent (preferably adopt water-soluble silicone oil), catalyst (preferably adopt methylmorpholine), plasticize...

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Abstract

The invention discloses a TS-29 hydrophilic polyurethane grouting material and a preparation process thereof. The hydrophilic polyurethane grouting material is prepared from polycyanate, hydrophilic polyhydroxy polyether, an organic cosolvent, an active agent, a catalyst, a plasticizer, triaminotoluene and propylene glycol. The preparation method comprises the following steps: firstly, putting hydrophilic polyhydroxy polyether into a reaction kettle, heating to 95-105 DEG C, stirring, vacuumizing, dehydrating and degassing for 2.5-3 hours, cooling to 50-53 DEG C, then adding polycyanate, reacting for 2.5 to 3 hours at the reaction temperature of 75 to 85 DEG C, cooling to 45 to 55 DEG C, finally, adding an organic cosolvent, an active agent, a catalyst, a plasticizer, triaminotoluene and propylene glycol, and fully stirring the mixture for 30-40 min, so that the hydrophilic polyurethane grouting material is obtained. The obtained polyurethane grouting material has the characteristics of foaming when meeting water and good adhesion and can be applied to secondary water plugging.

Description

technical field [0001] The invention relates to the technical field of grouting plugging, in particular to TS-29 hydrophilic polyurethane grouting material and its preparation process. Background technique [0002] Plugging refers to the activities of artificially stopping material leakage, the behavior of using professional plugging tools and materials to stop leakage after leakage of houses, tunnels, dams, medium leakage in pipeline containers, and leakage of downhole well pipes, and the behavior of sealing holes in intact pipelines. [0003] In civil construction engineering, water blocking, seepage prevention and reinforcement construction are often carried out on the seepage parts, but there are many kinds of materials used for the construction, seepage prevention and reinforcement, but all of them have defects in different degrees. performance is unstable. In the prior art, polyurethane resin is often used as a material for water blocking, anti-seepage, and reinforcem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/10C08G18/32C08K5/12
CPCC08G18/48C08G18/10C08K5/12C08G18/3206C08G18/324
Inventor 易启洪丁力
Owner 四川童燊防水工程有限公司
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