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Preparation method of leak repairing filling glue and house leak repairing method by using the filling glue

A technology of filling glue and leak repair, applied in the direction of adhesive, epoxy resin glue, adhesive type, etc., can solve the problems of reducing viscosity, reducing the excellent performance of epoxy resin, increasing fluidity, etc.

Inactive Publication Date: 2016-03-16
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a leak-trapping filler that overcomes the technical problem of enhanced toughness and reduced excellent performance of the epoxy resin itself in the toughening and modification of the existing epoxy resin, and can reduce its viscosity and increase its fluidity and permeability. The preparation method of and the method of using it for house leakage repair

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of leak-trap filling glue, comprises the steps

[0030] S11. Take 1 part by mass of aminosilane coupling agent and add it to 20 parts of absolute ethanol, then add acetic acid to adjust its pH value to 7, and ultrasonically oscillate for 10 minutes to completely dissolve it in absolute ethanol , to obtain a dispersed dehydrated alcohol mixed solution;

[0031] S12. Weigh 3 parts by mass of nano-SiO with a particle size of 15 nm 2 , put it into a flask, pour 10 parts of dispersed anhydrous ethanol mixed solution, ultrasonically disperse for 20 minutes, then stir in a constant temperature water bath at a stirring speed of 200RPM and a constant temperature of 75°C for 1 hour, and then cool to obtain modified nano-SiO 2 ;

[0032] S13. Add 10 parts by mass of liquid epoxy resin into the reaction vessel, install an electric high-speed mixer, heat to 50°C, and slowly add a modification equivalent to 5% of the weight of the liquid epoxy resin under sti...

Embodiment 2

[0035] The preparation method of leak-trap filling glue, comprises the steps

[0036] S11. Take 3 parts by mass of aminosilane coupling agent and add it to 100 parts of absolute ethanol, then add acetic acid, adjust its pH value to 1, and ultrasonically oscillate for 50 minutes to completely dissolve it in absolute ethanol , to obtain a dispersed dehydrated alcohol mixed solution;

[0037] S12. Weigh 10 parts by mass of nano-SiO with a particle size of 15 nm 2 , put it into a flask, pour 10 parts of dispersed anhydrous ethanol mixed solution, ultrasonically disperse for 60 minutes, then stir in a constant temperature water bath at a stirring speed of 500RPM and a constant temperature of 75°C for 10 hours, and then cool to obtain modified nano-SiO 2 ;

[0038] S13. Add 100 parts by mass of liquid epoxy resin into the reaction vessel, install an electric high-speed mixer, heat to 100°C, and slowly add a modification equivalent to 1% of the weight of the liquid epoxy resin unde...

Embodiment 3

[0041] The preparation method of leak-trap filling glue, comprises the steps

[0042] S11. Take 2 parts by mass of aminosilane coupling agent and add it to 60 parts of absolute ethanol, then add acetic acid to adjust its pH value to 5, and ultrasonically oscillate for 30 minutes to completely dissolve it in absolute ethanol , to obtain a dispersed dehydrated alcohol mixed solution;

[0043] S12. Weigh 6 parts by mass of nano-SiO with a particle size of 30nm 2 , put it into a flask, pour 35 parts of dispersed anhydrous ethanol mixed solution, ultrasonically disperse for 40 minutes, then stir in a constant temperature water bath at a stirring speed of 300RPM and a constant temperature of 75°C for 6 hours, and then cool to obtain modified nano-SiO 2 ;

[0044] S13. Add 60 parts by mass of liquid epoxy resin into the reaction vessel, install an electric high-speed mixer, heat to 80°C, and slowly add a modification equivalent to 3% of the weight of the liquid epoxy resin under stir...

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Abstract

A Preparation method of leak repairing filling glue comprises the steps of: adding an amino silane coupling agent to absolute ethyl alcohol, adding acetic acid, adjusting the pH value to 1-7, conducting ultrasonic vibration to completely dissolve the amino silane coupling agent in the absolute ethyl alcohol to obtain a dispersed absolute ethyl alcohol mixed solution; modifying the nano SiO2 with the dispersed absolute ethyl alcohol mixed solution modified nano SiO2; mixing and reacting the obtained modified nano SiO2 with liquid epoxy resin to obtain modified epoxy resin; and mixing the modified epoxy resin product with acetone, adding a small amount of butyl acetate to completely dissolve the modified epoxy resin, then adding a curing agent, and uniformly stirring to obtain the leak repairing filling glue. The product provided by the present invention can greatly improve the permeability by controlling the viscosity of the material, and achieve the perfect leak repairing by controlling the curing time.

Description

technical field [0001] The invention relates to the field of nanocomposite materials, in particular to a method for preparing a leak-trapping filler and a method for using it to repair leaks in houses. Background technique [0002] Epoxy resin is a thermosetting resin with excellent properties, such as strong adhesion, good chemical resistance, good stability, good processability and low cure shrinkage, etc. It is one of the most widely used thermosetting resins at present. However, the cost of using epoxy resin in the leakage repair project is high, and the performance of epoxy resin has defects, especially the use of epoxy resin with low viscosity, there are a large number of epoxy groups in its molecule, and the crosslinking density is very large when curing , very brittle, poor fatigue strength and impact toughness, low heat resistance, low peel strength, and low adhesion of epoxy coating, it is difficult to meet the requirements of the development of modern leakage repa...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J11/04E04G23/02
CPCC08K3/36C08K9/04C08K9/06C08K2201/003C08K2201/011C08K2201/014C09J11/04C09J163/00E04G23/0203E04G23/0211
Inventor 鲁圣国张思龙梁波陶涛
Owner GUANGDONG UNIV OF TECH
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