Polyurea elastic body compartment abrasion-resistance protection material
A technology of polyurea elastomer and protective material, which is applied in the fields of anti-corrosion chemical materials and polymer anti-wear, which can solve the problems of corrosive medium infiltration, uneven thickness, insufficient toughness, etc., and achieve good adhesion, high wear resistance, and original shape Good reproducibility effect
Inactive Publication Date: 2007-09-12
山东斯泰普力高新建材有限公司
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AI Technical Summary
Problems solved by technology
At present, the commonly used protective layer is solid epoxy paint and water-based paint, which need repeated spraying, slow speed, uneven thickness, etc.
All of these generally have the following disadvantages: ①Insufficient toughness, easy to crack under thermal stress or impact
②The system contains organic solvents, which are harmful to the human body
③Multiple processes must be adopted, the cycle is long, the efficiency is low, and the pinholes caused by solvent volatilization are easy to infiltrate the corrosive medium
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] Raw material name
[0022] Its processing and production process is to pour all the materials into the dispersion tank according to the proportion (remove the color paste part), disperse the materials evenly with a disperser, add the color paste and continue to disperse until uniform, then it can be discharged and packaged. The products prepared in the above examples have excellent wear resistance more than 10 times that of carbon steel, fast construction speed, and polyurea has excellent anti-corrosion, protection and decoration properties. The measured technical parameters are: solid content 100%, gel time 3-5 seconds, tensile strength 20MPa, elongation at break 150%, tear strength 85KN / m, hardness, Shore D90-95, adhesion 10MPa, Good medium resistance, density 1.03-1.10g / cm 3 . It is especially suitable for the inner and outer linings of the compartments of various vehicles (trains, light and heavy trucks, container cars, dump trucks, etc.).
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Abstract
This invention relates to a compartment wear-resisting protective material of polyurea elastomer. It is composed of A and B which weight ratio is equal. The component A is isocyanate, and B includes the weight components of following materials: 45-65% of amid-capped propylene oxide compound, 6-10% of diethyl toluenediamine, 6-13% of N, N'-dialkyl diamine, 3-8% of N, N'- dialkyl methyl diamine, 8-12% of 2,4-diamido-3,5- methylthio chlorobenzene, 4-7% of fumed silica, 2-5% of bis hexamethylene glycol. The wear resistance of this invention is more than 10 times of carbon steel, which particularly suits to the internal and external linings for all types of vehicles (train, light and heavy truck, container truck, dump truck and others).
Description
technical field [0001] The invention relates to the field of polymer wear-resistant and anti-corrosion chemical materials applied to metal boxes, in particular to a polyurea elastomer car wear-resistant protective material. Background technique [0002] In order to reduce wear and corrosion of the box body of the carriage, the traditional method is to pave the rubber or fiberglass layer on the box body, and the more advanced method is to spray a protective layer on the inner lining of the carriage. At present, the commonly used protective layer is solid epoxy paint and water-based paint, which need to be sprayed repeatedly, with slow speed and uneven thickness. All of these generally have the following disadvantages: ①Insufficient toughness, easy to crack under thermal stress or impact. ②The system contains organic solvents, which are harmful to the human body. ③Multiple processes must be adopted, the cycle is long, the efficiency is low, and the pinholes caused by solvent...
Claims
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IPC IPC(8): C08L75/02C09D175/02C08K5/10C08K3/36
Inventor 钟涛
Owner 山东斯泰普力高新建材有限公司