At present, there are five typical desiccant products in desiccant industry:

1）

Silica desiccant-the main component is silica, which is made of natural minerals through purification and processing into granules or beads. As a desiccant, its microporous structure (average 2A. ) has good affinity for water molecules. The most suitable hygroscopic environment for silica gel is room temperature (20~32) and high humidity (60~90%), which can reduce the relative humidity of the environment to about 40%.

2）

Clay Desiccant (Montmorillonite)-Small gray balls, which are most suitable for absorbing moisture in the environment below 50℃. When the temperature is higher than 50℃, the degree of "water release" of clay is greater than that of "water absorption". But the advantage of clay is that it is cheap.

3）

Molecular sieve desiccant-It is a synthetic desiccant product with strong adsorption to water molecules. The pore size of molecular sieve can be controlled by different processing technologies. Besides water vapor, it can also adsorb other gases. At the high temperature above 230℃, it can still contain water molecules well.

Advantages: strong adaptability. Disadvantages: low moisture absorption rate and poor environmental protection (non-degradable).

4) Mineral desiccant-Hengyuan mineral desiccant is composed of several natural minerals, and its appearance is gray-white pellets. It is non-toxic and harmless, and it is a degradable and environment-friendly desiccant. The moisture absorption rate is over 50%, which is twice that of ordinary silica gel.

5) Fiber desiccant-Hengyuan fiber desiccant is made of pure natural plant fiber through special process. Among them, the coated fiber desiccant sheet is convenient and practical, and does not occupy space. Its moisture absorption capacity reaches100% of its own weight, which is incomparable to ordinary desiccant. In addition, the product is safe and hygienic, and the price is moderate, so it is an ideal choice for many biological and health foods and medicines.