The role of black masterbatch in plastic plastic products
09/17/2018
The
black masterbatch is a coloring agent. By adding black masterbatch to
the plastic granules, the plastic product becomes black, which is more
convenient for use on the market. Among the various plastic and plastic products we are in contact with, black is made of black masterbatch.
The main function of the black masterbatch is to color the plastic products and dye the plastic products into black. In
the plastic product, the black masterbatch plays two major roles,
making the pigment color more uniform and maintaining the chemical
stability of the pigment.
First, the black masterbatch makes the distribution of the pigment in the product more uniform. The
special color masterbatch is added to the production of the product,
and the pigment can be refined, thereby improving the uniformity of the
distribution of the pigment in the product. A
good match between the specific color masterbatch and the article,
after heating and melting, the colored particles can be evenly dispersed
into various parts of the article.
Second, the black masterbatch can effectively maintain the chemical stability of the pigment. In
the process of storage and direct use, the pigment will inevitably come
into contact with the air. In this case, the phenomenon of water
absorption and oxidation of the pigment will inevitably occur. However,
if it is made into a color masterbatch, it has a resin component to
seat its carrier, and the pigment is well separated from the air during
use and storage, thereby ensuring the quality of the pigment in
long-term storage.
What are the effects of black masterbatch in plastics applications?
The
black masterbatch has good compatibility with plastic products, so the
black masterbatch can stay in the product for a long time and exert its
proper performance. However, if the black masterbatch exceeds its compatibility range, it will have a negative impact on the plastic product. For
example, when a large amount of filler is used, the viscosity of the
system will increase, the molding process will be difficult, and the
mechanical properties will decrease. When the amount of the flame
retardant is large, the mechanical properties of the material will be
significantly reduced; the addition of the liquid auxiliary agent will
cause the heat resistance of the material to decrease; Most
of the additives cause a significant decrease in the transparency of
the transparent plastic or a complete loss of transparency.
The
use of black masterbatch in plastic products, it should also be noted
that some additives have dual or multiple effects, such as carbon black
is not only a coloring agent, but also has both light shielding and
anti-oxidation; plasticizer not only softens the product, Moreover,
it can lower the addition temperature and improve the melt fluidity,
and some also have a combustion-supporting effect; some metal soap
stabilizers are lubricants themselves. For these additives, the formulation should be considered together, blended or simplified.
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