A kind of high-efficient adsorption material, the main components are calcium chloride and gum starch. Through chemical reaction between water molecules and calcium chloride, it absorbs moisture from the surrounding environment and transforms it into gel to achieve adsorption effect, thus completely eliminating any possibility of leakage. Common silica gel desiccant can only absorb 10%-27% of its own weight, while Ensob High Efficiency Desiccant can reach 300%. The rate of moisture absorption is 8-15 times higher than that of common desiccant.
No evaporation after completely absorbing moisture. After absorbing moisture, when ordinary desiccant meets high temperature, water vapor will evaporate and re-enter into the air, because Ensober high efficient desiccant can fuse water vapor with calcium chloride into gel, which is not easy to evaporate.
It can be used under the ambient temperature of -5℃~90℃. Calcium chloride desiccant with its active ingredient, good stability and difficult to react with other substances except water, can be used in almost all marine environments.
Silica gel
It is a kind of high active adsorption material, the main component is silica. It is usually made by reacting with sodium silicate and sulfuric acid and a series of post-treatment processes such as aging and acid bubbling. Silica gel is an amorphous material, its shape transparent irregular sphere, its chemical molecular formula for mSiO2. nH2O.
Silica gel chemical composition and physical structure, decided that it has many other similar materials are difficult to replace the characteristics: high adsorption performance, good thermal stability, chemical stability, high mechanical strength, and so on. The interior of silica gel desiccant is extremely fine pore mesh structure, these pores can absorb water, and retain water through its physical attraction, as desiccant is widely used in aviation parts, computer devices, electronic products, leather products, medicine, food and other industries to dry moisture. Even if the silica gel desiccant is completely immersed in water, it will not soften or liquefy. It is non-toxic, odorless, non-corrosive and non-polluting, so it can be in direct contact with any object.
Silica gel desiccant is most suitable for moisture absorption environment for room temperature (20~32℃), high temperature (60~90℃), it can make the relative humidity of the environment reduced to about 40%, so the desiccant has a very wide range of applications.
Silica gel's safety performance: silica gel can produce drying effect on human skin, therefore, the operation should wear good working clothes. If the silica gel enters into the eyes, you need to use a lot of water to flush, and find a doctor as soon as possible. Silica gel desiccant is the only desiccant that has passed the FDA certification and can be used directly in contact with food and medicine. After accidental ingestion, it will not cause harm to the human body and will not be absorbed by the human body, and can be naturally discharged from the body with the feces.
Composition group value: Ingredient Ratio (%) SiO2 99.6 Na2O 0.17 Fe2O3 0.02 MgO 0.01 CaO 0.04 Al2O3 0.16 Clay desiccant, the appearance of the shape of the gray ball, the most suitable for the environment below 50 ℃ moisture absorption. When the temperature is higher than 50℃, the degree of water release of clay is greater than the degree of water absorption. But the advantage of clay is that it is cheap.
Montmorillonite desiccant has become one of the international mainstream mineral desiccant raw materials since it was discovered and used in the field of desiccant in the 1980s by the German Southern Chemical Company, because of its low price and good adsorption effect.
Montmorillonite desiccant is also called bentonite desiccant and clay desiccant.
Montmorillonite desiccant color: purple, gray, purple-red
Features:
①Environmental protection: pure natural montmorillonite desiccant as a raw material, drying and activation of the product, does not contain any additives and soluble substances, is a non-corrosive, non-toxic, non-pollution of the green environmental protection products; can be disposed of as a general waste, will not pollute the environment, and can be naturally degraded.
②Adaptability: in the environment of various temperatures, the moisture absorption performance can remain stable;
③Moisture resistance: good moisture absorption performance, saturated moisture absorption rate of more than 50% of its own weight, is 1.5 times the traditional desiccant. Molecular sieve desiccant, it is a kind of synthetic and water molecules have strong adsorption desiccant products, crystalline aluminosilicate compounds, the crystal structure of the regular and uniform pore, pore size for the molecular size of the order of magnitude, which only allows the diameter of the molecule than the aperture small molecules to enter, so the molecules in the mixture according to the size of the sieve, so it is called molecular sieve. Its pore size can be controlled by different processing technology, in addition to adsorption of water gas, it can also adsorb other gases. In the case of high temperature above 230 ℃, still can well accommodate water molecules.
Molecular sieve desiccant features:
①Under the condition of ultra-low humidity, it can still absorb water vapor in the environment in large quantities, and effectively control the environmental humidity;
②The speed of moisture adsorption is very fast, and it can absorb a large amount of water vapor in a very short time. Activated mineral desiccant, also called concave earth desiccant, is made of pure natural raw material mineral concave-convex bar clay and activated hygroscopic agent refined through activation treatment, green and environmental protection, non-toxic and tasteless, no damage to human body. It has good adsorption activity at room temperature and general humidity, static moisture reduction and odor removal. Because it contains chlorine ions, it can't be in direct contact with food, medicine and metal. Widely used in products that can not be sealed with oil, gas phase sealing, such as: optical instruments, electronic products, medical care, food packaging and dry air sealing of military products and civilian products.
Mineral desiccant features:
①Good moisture-absorbing ability under high humidity;
②Excellent moisture-absorbing ability under high temperature than montmorillonite. Serial number item batch standard 1 color gray-white 2 shape 1-4MM 0.5-1MM3 abrasion rate gray-white 4 stacking density g/1 ≥ 9505 heat loss ≤ 3% 6 environmental protection in line with the requirements of RoHs Cb ≤ 2ppmPb ≤ 2ppmHg ≤ 2ppmCrVl ≤ 2ppm 7 hygroscopicity 25 ℃,RH = 20% ≥ 11% 25 ℃,RH = 40% ≥ 11% 25 ℃ RH=80%)≥20%
Fiber desiccant is made of pure natural plant fiber by special process. Among them, especially the laminated fiber desiccant tablets are convenient and practical and do not take up space. Its moisture-absorbing capacity reaches 100% of its own weight, which is incomparable to ordinary desiccant. In addition, the product is safe and hygienic and affordable, making it an ideal choice for many biological, health food and pharmaceutical products.
Fiber desiccant features:
① Natural plant fiber as moisture absorption carrier, can be 100% natural degradation, is an environmentally friendly desiccant;
② Moisture absorption rate is fast, high rate of moisture absorption;
③ Saturated moisture absorption rate can reach 100% of its own weight (25 ℃, RH=100%), three times of the ordinary desiccant;
④ Outer The image of thick paper sheet can be cut or punched into various shapes, and can be directly filled in bottle cap or other containers.
1, environmental protection: pure natural minerals as the main raw materials, can be 100% degradation without pollution.
2, safety: non-toxic and harmless.
3, high hygroscopicity: hygroscopicity rate is more than 50% higher than silica gel desiccant.
4, high cost-effective: under the premise of ensuring the effectiveness of the product, it provides the customer enterprises with a very competitive price in the market.
5, personalized service: according to the requirements of the service object can provide different performance products.
6, in addition to odor: natural structure can selectively adsorb formaldehyde and gaseous sulfide and other toxic gases. Definition: quantitative adsorbent and quantitative solution after a long period of full contact to achieve equilibrium. (The treated liquid or gas is stirred and mixed with the adsorbent, and there is no top-down flow of the treated liquid or gas through the adsorbent, this adsorption operation is called static adsorption.)
Applications:
1. Moisture-proof packaging: cameras and photosensitive materials, precision instruments/electrical appliances, food, medicine, shoes, clothes, leather, weapons, telecommunication equipment, etc.
2, air dehumidification: closets, cabinets, floors, musical instruments, etc. within the home. Definition: a certain weight of adsorbent filled in the adsorption column, so that a certain concentration of solution at a constant temperature at a constant rate of flow through, so as to measure through the adsorption capacity and equilibrium adsorption capacity. (Adsorption of the treated liquid or gas through the adsorbent flowing from top to bottom is called dynamic.)
Applications:
1, air drying: warehouses, ship warehouses, pharmaceutical factories, precision machinery, electronic equipment manufacturing plants, compressed air, instrument air drying.
2, industrial gas dehydration and refining: hydrogen, oxygen, nitrogen, chlorine, CO2, acetylene, ethylene, methane, ethane, propane, SO3, SO2, natural gas, coal gas.