Dedicated sealant surface layer coating for high-performance storage tank bottom and preparation method thereof

A surface coating, high-performance technology, applied in the field of chemical building materials, can solve the problems of poor performance such as the sealing and deformation of the bottom of the storage tank, low temperature flexibility, corrosion of the bottom of the tank, etc., and achieves good elasticity, high adhesion, The effect of preventing corrosion of the tank bottom

Inactive Publication Date: 2009-12-09
天津开发区科泰化工新材料开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the multi-component polyurethane waterproof coating currently used can form an excellent waterproof layer, it cannot meet the sealing and deformation requirements of the bottom plate of the storage tank due to its poor performance such as low temperature flexibility.
In addition, the contact parts between the bottom edge plate and concrete of various large storage tanks are often separated from the concrete foundation due to the deformation of the bottom of the tank, and water and corrosive media invade the bottom of the tank and cause corrosion of the bottom of the tank.

Method used

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  • Dedicated sealant surface layer coating for high-performance storage tank bottom and preparation method thereof
  • Dedicated sealant surface layer coating for high-performance storage tank bottom and preparation method thereof
  • Dedicated sealant surface layer coating for high-performance storage tank bottom and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 1. Formula of CTPU special sealant surface coating for high-performance storage tank bottom:

[0066] Component A:

[0067] Toluene diisocyanate 12kg,

[0068] Diphenylmethane diisocyanate 35kg,

[0069] TBIOL2000 polyether 80kg,

[0070] TMN3000 20kg,

[0071] TBIOL1000 polyether 5kg.

[0072] Component B:

[0073] Amine chain extender 10kg,

[0074] TMN3000 polyether 10kg,

[0075] TBIOL2000 polyether 35kg,

[0076] Plasticizer 110: dibutyl phthalate 10kg,

[0077] Wetting agent T80 5.5kg,

[0078] Reflective agent 2.0kg,

[0079] Antioxidant 1010 1.0kg,

[0080] UV absorber uv327 0.8kg,

[0081] Color and filler: talcum powder 14kg, titanium dioxide 5.5kg, china clay 3kg, kaolin 3kg, white carbon black 0.15kg, carbon black 0.1kg,

[0082] Diluent: xylene 5kg, ethyl acetate 3kg, butanone 2kg,

[0083] Accelerator: lead isooctanoate 1kg,

[0084] Defoamer: defom6800 0.3kg,

[0085] Leveling agent: levelslip810 0.2kg,

[0086] Adhesion enhancer: adheren...

Embodiment 2

[0092] Formula of CTPU special sealant surface coating for high-performance storage tank bottom:

[0093] Component A:

[0094] Toluene diisocyanate 8kg,

[0095] Diphenylmethane diisocyanate 20kg,

[0096] TBIOL2000 polyether 50kg,

[0097] TMN3000 15kg,

[0098] TBIOL1000 polyether 0kg.

[0099] Component B:

[0100] Amine chain extender 4kg,

[0101] TMN3000 polyether 6kg,

[0102] TBIOL2000 polyether 27.5kg,

[0103] Plasticizer 110: dioctyl phthalate 8kg,

[0104] Wetting agent T80 5kg,

[0105] Accelerator: stannous octoate 1.5kg,

[0106] UV absorber uv327 0.8kg,

[0107] Reflective agent 8kg,

[0108] Antioxidant 1010 2.0kg,

[0109] Color and filler: talcum powder 16kg, titanium dioxide 5kg, china clay 4kg, kaolin 1kg, white carbon black 0.15kg, carbon black 0.1kg.

[0110] Diluent: xylene 7kg, ethyl acetate 3kg,

[0111] Defoamer: defom5300 0.3kg,

[0112] Leveling agent: levelslip875 0.2kg,

[0113] Adhesion enhancer: adherent1051 0.1kg.

[0114] T...

Embodiment 3

[0116] Formula of CTPU special sealant surface coating for high-performance storage tank bottom:

[0117] Component A:

[0118] Toluene diisocyanate 15kg,

[0119] Diphenylmethane diisocyanate 25kg,

[0120] TBIOL2000 polyether 60kg,

[0121] TMN3000 10kg,

[0122] TBIOL1000 polyether 5kg.

[0123] Component B:

[0124] Amine chain extender 5kg,

[0125] TMN3000 polyether 5kg,

[0126]TBIOL2000 polyether 30kg,

[0127] Plasticizer 110: dibutyl phthalate 8kg,

[0128] Wetting agent T80 5kg,

[0129] Reflective agent 3.0kg,

[0130] Antioxidant 1010 1.0kg,

[0131] UV absorber 327 0.8kg,

[0132] Color and filler: talcum powder 10kg, titanium dioxide 5kg, china clay 4kg, kaolin 7kg, white carbon black 0.15kg, carbon black 0.1kg

[0133] Thinner: xylene 6kg, acetone 4kg,

[0134] Accelerator: lead isooctanoate 2.0kg,

[0135] Defoamer: defom 5500 0.3kg,

[0136] Leveling agent: levelslip8100 0.2kg,

[0137] Adhesion enhancer: KL 0.1kg.

[0138] The production pr...

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Abstract

The invention discloses a dedicated sealant surface layer coating for high-performance CTPU storage tank bottom and a preparation method thereof. The coating is composed of A component coating and B component coating; the dedicated sealant surface layer coating for storage tank bottom has favourable elasticity, waterproofness, corrosion resistance and ageing resistance and has good bonding strength with steel plates and concrete, which effectively prevents a gap from being generated between the tank bottom and the concrete due to tank bottom deformation and prevents the tank bottom from corrosion due to the tank bottom deformation, and the surface layer coating can be used for more than ten years. The dedicated sealant surface layer coating of the invention is mainly used for sealing the storage tank bottom, also can be used in the concrete ballasted bridge surface and the open bridge floor of a high-speed railway passenger special line bridge and railroad bridge culvert water proofing work, and is suitable for working as water proofing layers of other buildings and structures with high water proofing performance requirement, etc.

Description

technical field [0001] The invention belongs to the technical field of chemical building materials, and relates to a building waterproof coating and a preparation method thereof, in particular to a CTPU high-performance storage tank bottom special sealant surface coating and a preparation method thereof. Background technique [0002] At present, China's economy is developing at a high speed, and its demand for oil is also increasing rapidly. With the emergence of a large number of oil storage depots, the leakage of storage tanks (especially the bottom plate) due to corrosion will become a very serious problem. The leakage of the storage tank is mainly due to the contact between the outside of the bottom plate and the soil through the tank foundation, and the O in the soil 2 、H 2 O, salt and sulfate-reducing bacteria constitute the external corrosion environment of the bottom plate of the tank; the oil medium is stored inside the tank, and the H in the oil 2 O, SO 2 、H 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D5/00C09K3/10
Inventor 管云林管汉瑛管彦峰申峥许晓秋
Owner 天津开发区科泰化工新材料开发有限公司
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