Anti-sticking and wear resistant polyurea coating and its preparation method

A coating and polyurea technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of non-stickiness, easy wear and corrosion of the carriage, easy to damage the lining material of the carriage anti-rust coating, etc. Efficiency, extended service life, high construction efficiency

Active Publication Date: 2012-06-13
湘江涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, some of the compartments of heavy-duty dump trucks used in the infrastructure construction process have no lining, only anti-corrosion but non-sticky coatings, and some use PE boards as lining materials. Such vehicles are loaded with coal, sediment, etc. When fluid materials are used, the fluid materials are particularly easy to adhere to the compartment, which makes it necessary to use an excavator to unload the remaining materials in the compartment during the unloading process. This unloading procedure seriously affects the working efficiency of the heavy-duty transport dump truck
In addition, this method of unloading with the help of an excavator is easy to damage the anti-rust coating or PE board lining material on the surface of the car, and the car with a damaged surface protection layer is easy to wear and corrode
In this way, it not only reduces the work efficiency of the heavy-duty dump truck, but also shortens the service life of the heavy-duty dump truck compartment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This example is formed by mixing component A and component B according to the volume ratio of 0.8:1;

[0031] The A component is a semi-prepolymer synthesized from the following raw materials in parts by weight: 100 parts of carbodiimide-modified diphenylmethane diisocyanate with a functionality of 2.1, polyoxypropylene ether triol GMN-3050 (Shanghai Gaoqiao) 22 parts and polyester diol PS70L (Nanjing Stepan) 25 parts and fluorocarbon diol WF-Q211 24 parts (Wuxi Wanbo Chemical Company);

[0032] The B component is made of the following raw materials in parts by weight: 650 parts of polyoxypropylene diamine D-2000 (Huntsman Company), 500 parts of silicone diamine KBM-602, high-activity polyoxypropylene ether ternary Alcohol GEP-360N (Shanghai Gaoqiao) 335 parts, amino chain extender 3,3'-dichloro-4,4'-diaminodiphenylmethane 145 parts, amino chain extender 3,5-diethyltoluene 124 parts of diamine, 160 parts of amino chain extender N,N'-di-sec-butylmethylene diphenylamine,...

Embodiment 2

[0042] The anti-adhesive and wear-resistant polyurea coating of this embodiment is formed by mixing component A and component B according to the volume ratio of 1.2:1;

[0043] The A component is a semi-prepolymer synthesized from the following raw materials in parts by weight: 50 parts of carbodiimide-modified 4,4'-diphenylmethane diisocyanate with a functionality of 2.1 and a functionality of 2.7 60 parts of polymethylene polyphenyl polyisocyanate, polyoxypropylene ether diol GE-220 (Shanghai Gaoqiao) 27 parts and polytetrahydrofuran diol POLYTHF2000 (Germany BASF) 23 parts and fluorocarbon diol ZH -04 26 copies (Shanghai Dongfu Chemical Technology Co., Ltd.);

[0044] The B component is made of the following raw materials in parts by weight: 100 parts of polyoxypropylene triamine T-5000 (Huntsman Company), 580 parts of polyoxypropylene diamine D-2000 (Huntsman Company), silicone di 430 parts of amine KBM-603, 375 parts of high activity polyether polyol GEP-330N (Shanghai G...

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Abstract

The invention relates to an anti-sticking and wear resistant polyurea coating and its preparation method. The coating is prepared by blending of component A and component B. Specifically, the component A is synthesized by the following raw materials by weight: 90-120 parts of isocyanate, 40-60 parts of polyether polyol and 20-30 parts of fluorocarbon diol; and the component B is prepared by the following raw materials by weight: 500-800 parts of polyether amine, 400-600 parts of organosilicon diamine, 300-400 parts of high activity polyether polyol, 400-500 parts of an amino chain extender, 80-100 parts of an amino cross-linking agent, 100-150 parts of a high boiling point diluent, 5-10 parts of a composite catalyst, 400-600 parts of composite nano-metal oxide surface active materials, 600-800 parts of a filling material, and 40-60 parts of a pigment. The invention also includes a preparation method of the anti-sticking and wear resistant polyurea coating. A coating layer obtained by spraying of the anti-sticking and wear resistant polyurea coating in the invention has strong adhesion, and has good adhesion resistance, wear resistance, corrosion resistance, as well as impact resistance. Therefore, the anti-sticking and wear resistant polyurea coating of the invention is especially suitable for spraying on the lining surface of a heavy transport dump truck.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to an anti-adhesive and wear-resistant polyurea coating and a preparation method thereof. Background technique [0002] At present, some of the compartments of heavy-duty dump trucks used in the infrastructure construction process have no lining, only anti-corrosion but non-sticky coatings, and some use PE boards as lining materials. Such vehicles are loaded with coal, sediment, etc. When using fluid materials, the fluid materials are particularly easy to adhere to the compartment, which makes it necessary to use an excavator to unload the remaining materials in the compartment during the unloading process. This unloading procedure seriously affects the work efficiency of the heavy-duty transport dump truck. In addition, this method of unloading by means of an excavator is easy to damage the anti-rust coating on the surface of the car or the lining material of the PE boa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D7/12C08G18/66C08G18/62C08G18/48C08G18/42C08G18/50C08G18/12
Inventor 曹树印廖有为吴志高夏亮周庆军谭锐
Owner 湘江涂料科技有限公司
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