Coal tar cleaning agent
A cleaning agent and coal tar technology, applied in the field of cleaning agents, can solve the problems of cleaning workers' physical hazards, high risk, and low flash point, and achieve the effects of not being easy to ignite, improving the environment, and high flash point
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Embodiment 1
[0021] A coal tar cleaning agent, which is prepared by mixing raw materials according to weight percentage. The raw materials and weight percentage are: 40% dichloromethane, 15% tetrafluoroethylene, 15% d40 solvent naphtha, 10% methyl pyrrolidone, and 5% ethanol , Ethylene glycol monobutyl ether 15%.
Embodiment 2
[0023] A coal tar cleaning agent, which is prepared by mixing raw materials according to weight percentage. The raw materials and weight percentages are: 20% dichloromethane, 25% tetrafluoroethylene, 18% d40 solvent naphtha, 15% methylpyrrolidone, and 6% ethanol , Ethylene glycol monobutyl ether 16%.
Embodiment 3
[0025] A coal tar cleaning agent, which is prepared by mixing raw materials according to weight percentage. The raw materials and weight percentages are: 30% dichloromethane, 20% tetrafluoroethylene, 20% d40 solvent naphtha, 10% methyl pyrrolidone, and 5% ethanol , Ethylene glycol monobutyl ether 15%.
[0026] Compared with acetone and banana water, for the cleaning of coal tar dirt on aircraft brake pads and processing equipment thereof, the cleaning rate of the cleaning agent made according to embodiment 1, embodiment 2 and embodiment 3 to coal tar dirt reaches 98% Above, reached the same cleaning effect. In the same cleaning mode and conditions, the cleaning time is shortened by more than half an hour by using the cleaning agents of Example 1, Example 2 and Example 3. The cleaning agents of Embodiment 1, Embodiment 2 and Embodiment 3 have no pungent smell and can directly contact human skin.
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