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Healant for wetted surface

A repairing agent, wet surface technology, applied in the field of epoxy modified two-component reactive wet surface adhesive, can solve the problems of difficult to achieve strength and temperature resistance, large foreign exchange consumption, unsatisfactory performance, etc., and reach the operating temperature range. Wide, fast repair speed, high bonding strength effect

Inactive Publication Date: 2013-03-27
北京天诚宇新材料技术有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

In addition, although some domestic units have developed some metal fillers and wet surface adhesives, their performance cannot meet the requirements for equipment maintenance.
Although the performance of the above-mentioned foreign-developed repair materials is higher than that of domestic products, Germany’s Diamant products were used for tank track hangers in my country in the 1980s, but the strength and temperature resistance are still difficult to meet the demanding performance requirements for repairing military equipment or strength. equipment requirements, and the price of imported repair agents is extremely expensive, consuming a large amount of foreign exchange, resulting in the company's consumption of huge funds in equipment maintenance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0060] A component is epoxy resin E44 7500g, epoxy resin E51 1500g, aluminum oxide 143g, stainless steel powder 440g, cement 4000g, glass fiber 1000g and white carbon black 70g; B component is KH550 silane coupling agent 43g, DMP -30 (2,4,6-tris(dimethylaminomethyl)phenol) 650g, low-molecular polyamide 650 860g and white carbon black 800g; the above-mentioned components A and B are in a weight ratio of 5:1~ Weigh in a ratio of 6:1 and mix well. The concrete proportioning ratio of each embodiment is shown in Table 1.

[0061] Table 1

[0062] Example 1 2 3 Grade TG620 TG621 TG622 A, B ratio 5:1 5.3:1 6:1

[0063] The seven performance indicators of tensile strength, tensile shear strength, compressive strength, hardness, wet surface resistance, corrosion resistance and temperature resistance were tested according to the Ministry of Chemical Industry and national standards. The test methods and test results are as follows:

[0064] 3.1 Tens...

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Abstract

The invention provides a healant for a wetted surface and a preparation method thereof. The healant refers to an epoxy-modified double-component reaction-type wetted surface (underwater) adhesive, the bonding strength of which after being solidified reaches 35MPa and the using temperature is -60 degrees centigrade to 180 degrees centigrade. The invention is mainly applied to the leaking stoppage and sealing for various pipelines, valves, heating radiators, ships, fuel tanks and water tanks as well as mending processes such as connecting and sealing of the underwater cable joints. The invention has the advantages of water resistance, acid and alkali resistance, salt resistance and oil resistance.

Description

technical field [0001] The invention relates to a wet surface repair agent, in particular to an epoxy-modified two-component reactive wet surface (underwater) adhesive. Background technique [0002] As an important means of maintenance, surface engineering has been paid more and more attention. As an important part of the surface engineering discipline n9 surface technology, surface repair technology includes electroplating, electro-brush plating, thermal spraying, adhesive bonding, etc. These repair methods complement each other and become the necessary emergency measures for equipment maintenance. The old parts have been brought back to life, saving huge economic losses for the enterprise, and equipment maintenance has become an integral part of productivity. [0003] As one of the modern surface technologies, surface adhesive coating technology has played an important role in the field of equipment maintenance in recent years and achieved good social and huge economic be...

Claims

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Application Information

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IPC IPC(8): C04B28/00
Inventor 梁欣
Owner 北京天诚宇新材料技术有限公司
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