As a widely used surface coating technology, powder coating is widely used in many fields.
In the process of powder coating, the type and characteristics of powder raw materials have an important influence on the quality and performance of the coating.
Therefore,
before powder coating, it is necessary to understand the characteristics,
advantages and disadvantages of different types of powder raw materials.
Metal powder raw material is a common type
of powder raw material. Metal powder raw materials can be divided into
aluminum, zinc, copper, chromium and many other different types. These metal
powder raw materials have excellent thermal conductivity, electrical
conductivity and corrosion resistance, can be used to create a highly durable
and corrosion-resistant surface coatings.
The advantage of metal powder raw materials
is that they can be used to manufacture coatings with good mechanical
properties, such as high hardness, strength, high resistance to abrasion. At
the same time, metal powder raw materials can be used with different types of
resin powder mix, so as to create a coating with different colors and surface
effects.
Non-metallic powder raw materials is a
widely used type of powder raw materials, including such as polyester,
polypropylene, polyurethane, polyethylene, epoxy resin and many different
types. The advantage of non-metallic powder raw materials is that they can
produce a variety of different colors, different effects of the coating.
The advantage of non-metallic powder raw
materials is that they can be used to manufacture coatings with good
durability, wear resistance and corrosion resistance. At the same time, these
powder raw materials can also be mixed with other types of powder raw materials
to achieve different coating effects.
Hybrid powder raw materials refers to the
powder raw materials mixed by metal powder and non-metal powder. The advantage
of hybrid powder raw materials is that they can combine the advantages of metal
and non-metal powder to create a coating with good durability and corrosion
resistance. At the same time, hybrid powder raw materials can also be adjusted
by adjusting the ratio of metal powder and non-metallic powder to achieve
different coating effects and colors.
The disadvantage of hybrid powder raw
materials is that their manufacturing cost is higher than that of single type
of powder raw materials, because different types of powder raw materials need
to be mixed and sieved. In addition, the performance and quality of the coating
will be affected due to the complex composition of the hybrid powder raw
materials.
Nano powder raw material is a recently
emerged type of powder raw material, with excellent physical and chemical
properties. Nano powder raw materials are usually made of metal, non-metal or
its complex, its particle size is less than 100 nanometers. Because of their
very small particle size, nano-powder materials can be used to create coatings
with good gloss and lubricity.
The advantage of nano-powder raw materials
is that they can produce extremely durable and corrosion-resistant coatings.
Nanopowder raw materials also have good electrical conductivity, thermal conductivity
and wear resistance, which can be used to create high-performance coatings. In
addition, nanopowder raw materials can be adjusted in particle size and ratio
to produce coatings with different colors and effects.
However, the manufacturing cost of nano
powder raw materials is higher than that of traditional powder raw materials
because the manufacturing process requires highly sophisticated techniques and
equipment.
In conclusion, different types of powder
raw materials have their own characteristics and advantages and disadvantages,
so when powder coating is performed, the powder raw materials should be
selected to suit the specific application scenario. At the same time, in order
to ensure the quality and performance of the coating, the powder raw materials
should be strictly screened and tested to ensure that they meet the
requirements.
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