2016/7/8 15:24:57

powder coating will replace liquid coating

In the country, as early as in 1970s, it was studied and made of polyurethane powder coating, but its effect is not ideal. 1990s are set to seal a trimeric toluene diisocyanate caprolactam, caprolactam closed isophorone diisocyanate curing agent for polyurethane powder coating system was studied. In recent years, Ministry of chemical industry of Lanzhou Coatings Research 

Institute and research and a number of manufacturers, research and development of polyurethane powder coating and film coating technology, but due to raw materials, equipment, technology and 

other reasons, domestic polyurethane powder coatings and abroad than there are still differences. Away from the fire, to avoid direct sunlight, should be placed in a well ventilated, temperature of 35 degrees Celsius in the following places. Places to avoid contamination of water, organic solvents, Oils and other materials. 

After the powder coatings do not exposed to the air, should be stamped or turn tightly to prevent debris mixed. To avoid the long-term contact with the skin, the powder is attached to the skin of the use of soap and water rinse clean, do not use the solvent.

Coating construction site of the safety of the use of equipment to use equipment must be in good grounding to eliminate static electricity. Avoid unnecessary discharge phenomenon of the coating machine, spraying chamber, floating dust concentration try to control under the safe concentration, avoid the risk of fire or explosion dust. Energy saving and environmental protection is the main theme of the development of the world, due to environmental protection and other outstanding performance, the powder coating will gradually replace the solvent paint. In recent years, low temperature curing powder coating began to emerge in the market. It is estimated that the powder coating of 120 degrees C curing and 180-200 degrees Celsius, compared to 40%, can save about of the electric energy, energy saving advantages are obvious. Low temperature curing 

powder coatings will be the future development of the future development of the inevitable trend, but also the current research focus on the object. Energy saving and environmental protection is the main theme of the development of the world, due to environmental protection and other outstanding performance, the powder coating will gradually replace the solvent paint. In recent years, low temperature curing powder coating began to emerge in the market. First is to do a good job in formula and ready for the raw materials, such as you to produce a ton, corresponding to 

calculate the formula to produce a ton; view of raw materials are complete; production of pigments and fillers pulp; is followed by adding water, low speed to join the corresponding additives, and then put into Yan, filler (general is to join the oil absorption), cast powder, washing machine. And high speed dispersion for about 20 minutes, until the fineness is eligible; of course if you have to go through the sand machine, I think only need to medium speed straight powder is not obvious particles can be. Paint, pigment and filler pulp production after, reduce speed at 600 rpm or so, join the emulsion and the corresponding test auxiliaries, and finally adjusted pH and viscosity.


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