ã€China Aluminum Network】 Aluminium profiles conventional powder coating formulations often add various types of low molecular weight, low melting point wax powder to make the coating has good Scotch, anti-caking, wear, extinction, degassing and texture effects, However, when we read the information about aluminum sublimation transfer powder coating materials, we found that many people are skeptical about adding wax powder to the formulation. It is believed that after the wax powder is added, the powder coating will produce a “sticky paper†phenomenon during thermal transfer. However, during the experiment, we found that the wax powder has a positive effect on the removal of aluminum thermal transfer powder coatings.
Group A did not add wax powder, group B added 0.3% wax powder. After the spray plate, the hardness of group B was higher than that of group A. After vacuum transfer, the two groups of A and B printed less, and the transfer effect of group B was better than that of group A.
In group C, no wax powder was added. In group D, 0.2% wax powder was added. After the spray plate was made, the hardness of group D was higher than that of group C. After vacuum transfer, C and D groups had fewer impressions in both groups, and group D had better transfer effect than C. Group is good.
We experimentally found that the appropriate addition of wax powder can increase the hardness of the coating, improve the leveling of the coating, help to improve the "sticky paper" and the impression left on the coating surface after transfer, but some of the wax powder was added after migration to The surface is unfavorable for the transfer. Some matt wax powders have a promoting effect on the leveling of the coating, but have a great influence on the transfer effect.
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