Silica gel sealing strip
can be described as a kind of highly active adsorption material. It is an amorphous substance. The chemical formula of silica gel strip is mSiO2·nH2O. Silica gel is insoluble in water and any solvents, non-toxic, tasteless, chemically stable, and does not react with any substances except strong alkalis and hydrofluoric acid. Various types of silica gel will also form different microporous structures due to different manufacturing methods. It is precisely because of the chemical composition and physical structure of silica gel that it has the characteristics that many other similar materials do not have: high adsorption performance, stable chemical properties, good thermal stability, high mechanical strength, etc. . The main component of silica gel sealing strip is silica, which is chemically stable and non-toxic. In addition, silica gel has a strong adsorption capacity, which can produce a drying effect on human skin. If silica gel gets into the eyes, then we need to rinse with plenty of water and seek medical treatment as soon as possible. The blue silica gel is toxic because it contains a small amount of cobalt chloride. Therefore, it is necessary to avoid contact with food and inhalation. If a poisoning event occurs, you must seek medical treatment. Due to the strong adsorption of silica gel, it can quickly and effectively adsorb the moisture in the sealed package, its chemical properties are stable, and it is non-toxic and harmless. As well as the continuous innovation and development in recent years, silica gel has been widely used in drug purification and DNA. Separation, food drying, high-grade cosmetics, high-precision electronics, beer purification, sewage purification, high-grade coatings and resin production or preservation. In our daily life and production and business activities, silica gel is often used in the following aspects: dry and mildew-proof packaging of precision optical instruments and electronic appliances; for drying leather goods, it can be placed in leather clothes, leather bags, and shoes. Play the role of drying and quality preservation; in terms of food drying, it is more common in biscuits and fried foods to ensure the crispness of the food; in terms of drying of medicines, they are placed in medicine bottles to ensure the prolonged shelf life of medicines.
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