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2.3 Why Choose SDD
For these quality deficiencies as bubble, crazing, cracking, poor transparency are
due to insufficient drying of plastic materials before molding, and the engineering
plastics such as: PC, PA, PBT, PET, Nylon, etc. The hygroscopic materials used
in the plastics industry such as PC, PA, PBT, PET, Nylon, etc. cannot be dried
effectively by conventional hot air drying systems because the moisture enters
inside the particles. According to suggestion of the manufacturer, the plastic
materials can be completely dried by drying air with dew-point temperature
≤
-20
℃
.
However, the SCD sufficiently dehumidifies and dries the air inside the
closed-loop system, and the dry air eliminates the moisture fast and completely as
to reach the drying and dehumidifying effect.
