Moisture curing heat insulation asphalt anticorrosion paint

A moisture-curing, anti-corrosion paint technology, applied in the direction of anti-corrosion coatings, asphalt coatings, fire-resistant coatings, etc., can solve the problems of easy foaming and cracking cycle, no heat insulation, no aging resistance, etc. Labor-saving and labor-saving, strong anti-friction effect

Inactive Publication Date: 2009-05-20
SHENYANG ZIYUAN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of anticorrosive paints used in petroleum storage tanks and pre-buried pipelines in petrochemical and metallurgical industries, most of which do not have the function of heat insulation, and some have poor weather resistance, aging resistance, easy foaming and cracking, and Defects such as short cycle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] First put 35 parts of polymethylene polyphenyl isocyanate 300# into the reaction kettle with a pump, add 0.06 parts of phosphoric acid for emulsification, raise the temperature while feeding, add 10 parts of polyether glycol, 20 parts of xylene and 5 parts of cyclic Oxygen resin E-44, heat the reaction to 80 ° C for 2.5 hours, then add 65 parts of coal tar pitch, 15 parts of toluene, 100 parts of thermal insulation materials composed of 65 parts of hollow glass fine powder and 90 parts of expanded perlite powder, Put 10 parts of xylene into the reaction kettle one after another, heat up while stirring while feeding, when the temperature rises to 110°C, keep warm for 2 hours, drain water, then cool the material to 40°C and filter, filter with a 200-mesh filter and inspect the packaging.

[0021] Then 15 parts of toluene diisocyanate, 60 parts of acetone, and 8 parts of trihydroxypolyether were successively put into the reaction kettle, stirred while feeding, and inspected...

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PUM

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Abstract

The invention provides a moisture-curing thermal-insulation asphalt anticorrosive paint used for the external wall of the pipeline, consisting of two components; the anticorrosive paint is characterized in that a component A consists of isocyanate, polyether diol, epoxy resin, phosphoric acid, coal tar pitch, toluene, thermal insulation material and a solvent; a component B consists of toluene diisocyanate, acetone and trihydroxy polyether, wherein, the isocyanate is polymethylene polyphenyl isocyanate 300<model>; the solvent is xylene; and according to the parts by weight, the thermal insulation material consists of 50-80 parts of hollow glass micro-fine powders, and 80-100 parts of expansion perlite powders. The thermal-insulation asphalt anticorrosive paint has the advantages of thin coating layer, low cost, saving time and effort during coating process, good thermal insulation performance, firm adhesion, strong anti-friction force, resisting chemical corrosions such as acids, alkali, salt, and the like, reducing the transmission resistance of oil, natural gas, water and sewage, and hanging no scales or silt.

Description

technical field [0001] The invention relates to an anticorrosion paint, in particular to a moisture-cured heat-insulating asphalt anticorrosion paint for the inner wall of a pipeline, which belongs to the category of polymer compounds. Background technique [0002] At present, there are many kinds of anticorrosive paints used in petroleum storage tanks and pre-buried pipelines in petrochemical and metallurgical industries, most of which do not have the function of heat insulation, and some have poor weather resistance, aging resistance, easy foaming and cracking, and Defects such as short cycle time. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a moisture-cured heat-insulating asphalt anti-corrosion paint for the anti-corrosion of the inner wall of the pipeline by improving the formula. Strong, strong friction resistance and impact resistance, acid, alkali, salt and ot...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D5/08C09D5/18C09D163/00
Inventor 谢海刚
Owner SHENYANG ZIYUAN ENVIRONMENTAL PROTECTION TECH
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