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Steel adhesive for adhesion of steel materials of coal economizer and preparation method of steel adhesive

A technology for bonding steel glue and economizer, applied in the field of steel bonding glue, can solve the problems of insufficient bonding force and poor high temperature resistance performance of steel bonding glue, and achieve excellent bonding performance, high humidity resistance, and excellent high temperature resistance performance. Effect

Inactive Publication Date: 2018-12-07
四川陆亨能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a steel-bonding glue for bonding steel materials of economizers and a preparation method thereof, which can effectively solve the problems of insufficient bonding force and poor high-temperature resistance of the existing steel-bonding glue

Method used

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  • Steel adhesive for adhesion of steel materials of coal economizer and preparation method of steel adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A steel glue for bonding economizer steel, comprising the following components in parts by weight:

[0027] 55 parts of polyimide, 70 parts of epoxy resin, 50 parts of isopropyl acetate, 28 parts of siloxane, 18 parts of nano-silica, 14 parts of glycerin, 4 parts of phenol oil, 6 parts of polysulfone, azobis 8 parts of isoheptanonitrile, 8 parts of bishydroxyphthalimide, 15 parts of silane coupling agent KH-550 and 5 parts of antioxidant 168.

[0028] The preparation method of above-mentioned glue for sticking steel comprises the following steps:

[0029] (1) Stir and mix epoxy resin and nano-silica according to the formula to form mixed solution A; then mix isopropyl acetate and siloxane to form mixed solution B; mix mixed solution A and mixed solution B at 135°C Stir and mix, then add azobisisoheptanonitrile, continue to stir and react for 4h;

[0030] (2) Mix polyimide, glycerin, phenol oil, antioxidant 168 and polysulfone, then add to the product obtained in step ...

Embodiment 2

[0032] A steel glue for bonding economizer steel, comprising the following components in parts by weight:

[0033] 50 parts of polyimide, 80 parts of epoxy resin, 60 parts of isopropyl acetate, 20 parts of siloxane, 10 parts of nano silicon dioxide, 10 parts of glycerin, 5 parts of phenol oil, 5 parts of polyether, azobis 5 parts of isoheptanonitrile, 5 parts of bishydroxyphthalimide, 10 parts of aluminate and 5 parts of antioxidant 164.

[0034] The preparation method of above-mentioned glue for sticking steel comprises the following steps:

[0035] (1) Stir and mix epoxy resin and nano-silica according to the formula to form mixed solution A; then mix isopropyl acetate and siloxane to form mixed solution B; mix mixed solution A and mixed solution B at 120°C Stir and mix, then add azobisisoheptanonitrile, continue to stir and react for 3h;

[0036] (2) Mix polyimide, glycerin, phenol oil, antioxidant 164 and polyether, then add in the product obtained in step (1), then add ...

Embodiment 3

[0038] A steel glue for bonding economizer steel, comprising the following components in parts by weight:

[0039] 56 parts of polyimide, 80 parts of epoxy resin, 60 parts of isopropyl acetate, 28 parts of siloxane, 20 parts of nano silicon dioxide, 20 parts of glycerin, 10 parts of polysulfone, 15 parts of azobisisoheptanonitrile , 10 parts of bishydroxyphthalimide, 15 parts of ethylene-methyl acrylate and 10 parts of antioxidant CA.

[0040] The preparation method of above-mentioned glue for sticking steel comprises the following steps:

[0041] (1) Stir and mix epoxy resin and nano-silica according to the formula to form mixed solution A; then mix isopropyl acetate and siloxane to form mixed solution B; mix mixed solution A and mixed solution B at 150°C Stir and mix, then add azobisisoheptanonitrile, continue to stir and react for 5h;

[0042] (2) Mix polyimide, glycerin, anti-oxidant CA and polysulfone, then add to the product obtained in step (1), then add bishydroxypht...

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Abstract

The invention discloses a steel adhesive for adhesion of steel materials of a coal economizer and a preparation method of the steel adhesive. The steel adhesive contains the following components in parts by weight: 50-60 parts of polyimide, 70-80 parts of epoxy resin, 50-60 parts of isopropyl acetate, 20-30 parts of siloxane, 10-20 parts of nano-silicon dioxide, 10-20 parts of glycerin, 5-15 partsof azobisisoheptonitrile, 0-5 parts of carbolic oil, 5-10 parts of a flexibilizer, 5-10 parts of dihydroxy phthalic acid imide, 10-20 parts of a coupling agent and 5-10 parts of an antioxidant. The steel adhesive prepared by virtue of the preparation method has excellent high-temperature resistance, strong adhesion force and good stability.

Description

technical field [0001] The invention belongs to the technical field of steel glue, and in particular relates to a steel glue used for bonding economizer steel and a preparation method thereof. Background technique [0002] The economizer (English name Economizer) is a device installed in the lower part of the boiler tail flue to recover the waste heat of the exhausted smoke. It heats the boiler feed water into the heating surface of saturated water under the pressure of the steam drum. Because it absorbs high-temperature smoke The heat of the gas reduces the exhaust temperature of the flue gas, saves energy and improves efficiency. It is widely used in industrial production processes for heat recovery and other functions. [0003] Existing economizers are produced by welding, and during the welding process, it is inevitable that damage will be caused to the welding points of the economizer pipe wall, resulting in the leakage of the serpentine pipe after long-term use, giving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/08C09J179/08C09J11/06C09J11/04C09J11/08
CPCC08K2201/011C08L2201/08C08L2205/03C09J11/04C09J11/06C09J11/08C09J151/08C09J179/08C08L79/08C08L81/06C08L71/00C08K13/02C08K3/36C08K5/053C08K5/3417C08K5/526
Inventor 孙积文康文平
Owner 四川陆亨能源科技有限公司
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