Although the drying of plastic particles is a relatively simple process, in some cases the particles cannot be completely dried. Then what factors will affect the drying effect of the dryer? Next Topstar Technology combines experience to give you detailed answers:
1. Drying temperature: Heat is the key to open the forces between water molecules and hygroscopic polymers. Above a certain temperature, the attraction between water molecules and polymer chains is greatly reduced, and the water vapor is carried away by the dry air.
2. Dew point: In a desiccator, the moist air is first removed to make it have a low residual moisture (dew point). Then, its relative humidity is lowered by heating the air. At this time, the dry air has a lower vapor pressure. By heating, the water molecules inside the particles get rid of the binding force and diffuse into the air around the particles.
3. Airflow: Dry hot air transfers heat to particles in a dry silo, removes moisture from the surface of the particles, and then sends the moisture back to the dryer. Therefore, there must be enough infrared carbon sulfur gas flow to heat the resin to the drying temperature, and maintain this temperature for a certain period of time.
4. Time: In the air surrounding the particles, the absorption of heat and the diffusion of water molecules to the surface of the particles take some time. Therefore, the resin supplier should specify the time it takes for a material to be effectively dried at the proper temperature and dew point.
Compartment Disposable Lunch Box
Two pieces of black base and clear lid bento box are available in a variety of compartment options that can meet your different uses in daily. All the raw materials we use are food -grade and safety guarantee. Various sizes and divided compartments design has the advantages of practically and food storage separately, to keep entrees and sides separated from each other for a perfect food presentation. Precision process and exacting details pursuit of perform can show your food in good display.
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