The Factors of Laboratory freeze dryers

temperature
The Laboratory freeze dryers temperature, heat is the key force between water molecules and absorbent polymers opens. When above a certain temperature, gravity water molecules and polymer chains will be greatly reduced, water vapor was taken away dry air.
Dew point

In the dryer, the wet air removed first, to contain very low residual moisture (dew point). Then, by heating the air to reduce its relative humidity. In this case, the vapor pressure of dry air is low. By heating the water molecules inside the particles out of the shackles of the bonding force, the particles spread to the surrounding air.
Time
In the particles in the surrounding air, absorb heat and water molecules to the particle surface diffusion takes time. Therefore, the resin supplier should specify a material to obtain effective drying must spend time at a suitable temperature and dew point.
Airflow
Dry hot air to transfer heat to the Photochemical reactor hopper particles, the particle surface to remove moisture, then put the moisture back to the dryer. Therefore, there must be sufficient airflow to the resin is heated to the drying temperature, and this temperature is maintained a certain period of time.