How to Choose The Right Drying Technology

Writer： admin Time：2019-03-18 10:18 Browse：℃

    The drying of materials for each for plastics processors are inevitable. At the same time, in order to produce high quality products, this process is also very important. Choosing proper drying technology can help to save cost and reduce energy consumption, and it is of great significance to select the appropriate drying technology for the correct assessment of drying technology and cost.

   The increase of water content will gradually reduce the shear viscosity of the material. During the process, the quality of the product and a series of processing parameters are changed due to the change of the melt flow properties. For example, the stagnation time is too long will make the residual moisture content is too low to cause the increase of viscosity, which will lead to incomplete fill mode, but also will cause the material yellowing. In addition, some of the changes in performance can not be directly observed with the naked eye, and only through the relevant testing of the material can be found, such as mechanical properties and dielectric strength changes.

   When selecting the rotary dryer process, the drying performance of the material is very important. Materials can be divided into two kinds of moisture absorption and non moisture absorption. Absorbent material can absorb moisture from the surrounding environment, non absorbent material can not absorb moisture from the environment. For non absorbent materials, the presence of water in any environment is retained on the surface and becomes "surface water" and is easy to be removed. It is made of non hygroscopic material particles may also be because of the effect of additives or fillers become hygroscopic.