【Desiccant recommendation】What are the desiccants on the market? Talk about the application range of different desiccants

When it comes to desiccant, I believe that many people will know a little, but in fact, desiccant can be seen everywhere in our lives, such as the shoes and hats, clothing, food and other packaging bags we are familiar with, it is a small bag of granules.

 

The so-called desiccant is actually a moisture-absorbing and moisture-proof substance, which is generally divided into two categories: chemical desiccant, which is dried by combining with water to generate hydrate, such as calcium chloride desiccant; Physical desiccant, drying by physically adsorbing moisture, such as silica gel desiccant.

So why use these desiccants? These desiccants are to better avoid moisture and mold affecting the quality of the items. With the improvement of living standards, the types of desiccant on the market are becoming more and more diverse, and the characteristics of moisture absorption rate of different desiccants are different, so that their scope of application is also different.

For example, silica gel desiccant is often used in edible products such as food and medicine; Magnesium chloride desiccant is mainly used in electronics, metals and other products; Calcium chloride desiccant will be used in products with relatively high moisture absorption requirements such as shipping. In order to let you have a deeper understanding of the characteristics and application range of different desiccants, I will give you a popular science today!

Silica gel desiccant is made of silica as raw material, will not soften or liquefy, and at the same time adsorb by physical means, but also has the characteristics of odorless, non-corrosive, stronger adsorption force, and stable chemical properties. It can be used in contact with food, and it is relatively safe and reliable to use it in food moisture-proof, and can effectively prevent all kinds of food from becoming damp and moldy.

 

Mineral desiccant is also a more common food desiccant on the market, it uses superior diatomaceous earth as raw material, can physically adsorb water in its own structure, with high moisture absorption, mild reaction, odorless, non-contact corrosion, chemical stability and other properties, can be in contact with food, effectively prevent food rancidity, insects, discoloration, taste and other problems.

 

Industrial desiccant

In the industrial field, the application range of desiccant is also very wide, among which the desiccant that can be used in the industrial field are: silica gel desiccant, mineral desiccant, magnesium chloride desiccant, fiber desiccant, montmorillonite desiccant, etc.

 

Silica gel desiccant, mineral desiccant these two are more suitable for the use of various products desiccant, in addition to being widely used in the food field, they are also used in a variety of chemical fiber textile, leather products, shoes and bags, wood, clothing, cultural relics archives, cameras, arts and crafts and other products.

Fiber desiccant is also a widely used in the industrial field, it is mainly based on plant fiber as raw material, with odorless, non-corrosive, chemically stable, strong moisture absorption and other characteristics, widely used in electronic materials, leather products, shoes and bags, handicrafts, garments, cultural relics archives and other products. It can continue to effectively prevent all kinds of items from getting wet and moldy.

Magnesium chloride desiccant is widely used in the field of electronic equipment, mainly magnesium chloride as raw material, its chemical properties are stable, the absorption performance is balanced, with the increase of humidity, the stronger the adsorption capacity, and the same humidity, the moisture absorption capacity is stronger than the ordinary desiccant 5-8 times, plus moisture absorption after becoming solid and surface no liquid water seepage. Therefore, it is widely used in automobile headlights, automobile engines, daily hardware, security equipment, mechanical equipment and other equipment that requires moisture.

Montmorillonite desiccant is a degradable desiccant, mainly using montmorillonite as raw material, which is physically adsorbed of water molecules in its own pore size, with fast adsorption speed, large adsorption capacity, non-corrosive and other characteristics. It is widely used in electronic products, leather products, shoes and bags, handicrafts, garments, cultural relics and archives and other products.

Sea desiccant

Of course, in addition to the use of desiccant in the product, the desiccant will also be seen in the daily storage and shipping process, and calcium chloride desiccant is the home field.

Because calcium chloride desiccant uses powder calcium chloride as raw material, it has active ingredients, and has high moisture absorption rate and fast moisture absorption speed, in addition, when calcium chloride and moisture chemical reaction, it will also form a gel, so it is used as a shipping desiccant. Because in the process of shipping, the humidity is more serious, easy to form container rain, in this case, the placement of calcium chloride container desiccant is a cost-effective moisture-proof treatment.