Features of activated carbon desiccant

2021-10-11   Pageview:75

Activated carbon is made of good Philippine coconut shell as raw material and refined by good process equipment. Its appearance is dark black columnar, with a large specific surface area, and there are even finer pores – capillaries, which have strong adsorption capacity, and because of the large surface area, they can fully contact with the gas.

When these gases come into contact with the capillaries, they are adsorbed and play the role of moisture absorption. Activated carbon has suitable pore structure, high institutional strength, can withstand high temperature and high pressure, not easy to break ash, long service life and other characteristics. It can be made from 0.5g to 2000g.

 

 

 

 

 

 

 

 

 

 

 

 

Type of conductive agent
Generally, conductive agents can be divided into two types: ion-conducting (polymer electrolyte, etc.) and electronic-conducting (metal powder, carbon black, etc.). The ion-conducting performance and conduction mechanism of polymer electrolytes are not yet fully understood. This section only introduces electronically conductive conductive fillers. Conductive agent widely used in coatings.

Conductive agents used in conductive coatings can be roughly divided into the following five categories: ①metallic conductive agents; ②metal oxide conductive agents; ③carbon conductive agents; ④composite conductive agents; ⑤other conductive agents. The following describes its performance characteristics and application fields respectively.

Metallic conductive agent
Due to the high conductivity of metals, metal powders, flakes, and wires are currently the most important conductive additives.

There are many manufacturing methods for metal powder. Generally, physical methods such as manual or mechanical pulverization and melting and pulverization can be used to prepare crushed powder, crushed powder, spray powder and granular powder. Metals using this powdering method include gold, silver, copper, aluminum, iron, tin, lead, etc. In addition, chemical methods can also be used to obtain reduced powders of gold, silver, copper, iron, nickel, and cobalt; electrolytic powders of copper, silver, and nickel can be obtained by electrolysis, and pulverized electrolytic powders can be obtained by crushing cathode deposits. The general shape of metal powder.
Shape of metal powder

During electrolysis, the powdery product is precipitated at the wax on emulsion paint cathode and the spherical powder is similar to the spherical powder. The fine needle-like metal film is expanded. The porous particle has the corner particles. Electrolysis granulation method, spray method, manual method, reduction method, mechanical crushing, mechanical crushing, spraying Metal sheets usually manufactured by metal spinning have regular shapes, uniform thickness, and no oxidation on the surface, making them a good conductive agent. The size distribution of metal flakes produced by this method by Youxinbu Co., Ltd. in Japan.

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