High-strength impact-resistant composite repairing material and preparation method thereof
A composite repair and anti-shock technology, applied in the direction of chemical instruments and methods, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of equipment life, re-leakage, fluidity, and curing strength that affect the normal operation of production equipment , thermal expansion and contraction performance can not fully achieve complete plugging and other problems
Active Publication Date: 2013-06-12
甘肃中顺石化工程装备有限公司
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Problems solved by technology
[0002] At present, for equipment with less than 25% sulfuric acid as the medium, the materials used for leakage maintenance are usually ordinary materials such as KPI cement, resin, and liquid sulfur. Although the acid resistance is good, due to the characteristics of the material itself, the fluidity , curing strength, thermal expansion and contraction performance, etc. can not fully achieve the purpose of complete plugging
After driving for a period of time, due to changes in temperature, pressure and other factors during production, it is easy to leak again, which will affect the normal operation of the production equipment and the service life of the equipment.
Method used
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Embodiment 1
[0019] Embodiment 1: A high-strength impact-resistant composite repair material, including a binder and a diluent at a weight ratio of 100:10.
[0020] The binder includes 10-15% by weight of polytetrafluoroethylene powder with a particle size of less than 10 microns, 10-20% of nylon powder, 20-25% of polyurethane resin, 15-25% Excess diisocyanate, 10-20% polyether polyol, 6-10% ultra-fine diabase powder, 4-10% ultra-fine quartz powder with a mesh size less than 300 mesh.
[0021] The diluent includes 10-15% n-butyl acetate, 10-16% ethyl acetate, 5-10% n-butanol, 4-5% ethanol, 5-8 % acetone, 40-50% toluene, 5-10% ethylene glycol ether acetate, 8-10% methyl isobutyl ketone.
Embodiment 2
[0022] Embodiment 2 is the same as Embodiment 1, except that: a high-strength impact-resistant composite restoration material includes an adhesive and a diluent at a ratio of parts by weight of 100:15.
Embodiment 3
[0023] Embodiment 3: the same as Embodiment 1, the difference is: a high-strength impact-resistant composite restoration material, including a binder and a diluent in a ratio of parts by weight of 100:13.
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Abstract
The invention relates to a special material for an equipment plugging technology, which takes sulfuric acid as a medium. The special material is a high-strength impact-resistant composite repairing material comprising an adhesive and a diluent in weight ratio of 100:(10-15). The invention also provides a preparation method of the high-strength impact-resistant composite repairing material, comprising the following steps of: pouring the raw material adhesive into a stirring pool and stirring uniformly; then injecting to a reactor to prepare a solution; pouring the diluent into a glass reinforced plastic stirring pool and stirring uniformly at normal temperature and pressure for 2-3 hours to prepare a solution; and mixing the prepared adhesive solution and the diluent solution to prepare a semisolid composite repairing material. The technology is mainly used for completely or partially repairing leakage parts of towers, grooves and tanks in wet-process metallurgy, sulfuric acid equipment and phosphorus chemical industry.
Description
technical field [0001] The invention relates to a special material for equipment plugging technology using sulfuric acid as a medium. Background technique [0002] At present, for equipment with less than 25% sulfuric acid as the medium, the materials used for leakage maintenance are usually ordinary materials such as KPI cement, resin, and liquid sulfur. Although the acid resistance is good, due to the characteristics of the material itself, the fluidity , curing strength, thermal expansion and contraction performance and other aspects can not fully achieve the purpose of complete plugging. After driving for a period of time, due to changes in temperature, pressure and other factors during production, it is easy to leak again, which will affect the normal operation of the production equipment and the service life of the equipment. Contents of the invention [0003] The purpose of the present invention is to avoid the deficiencies of the prior art and provide a high-stren...
Claims
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IPC IPC(8): C09J175/04C09J175/08C09J11/04C09K3/12
Inventor 过卫东张荣泽
Owner 甘肃中顺石化工程装备有限公司