Do you know what’s the silicone bracelet?

Silicone bracelet, also known as silicone wrist ring. Adopt high-quality environmental protection silica gel material exquisite and become, is a kind of green environmental protection jewelry. Silicone bracelets are similar to traditional jadeite bracelets, more beautiful than jade bracelets. Engraving, printing, thousands of designs, thousands of colors, fashion. In early 2005, a small number of charities brought in fund-raising funds through the sale of plastic hands with special words, but the results were modest. It was not until mid-2005 that rubber bands became the most popular ornaments of the day, driven by celebrities from all walks of life. Silica gel is a porous material with different particle size, which is properly dehydrated by silica gel mSiO2 nH2O. It is a good desiccant, adsorbent and catalyst carrier because of its open porous structure, large specific surface area (unit mass surface area) and the ability to adsorb many substances. The adsorption of silica gel is mainly physical adsorption, which can be regenerated and reused. Adding acid to alkaline silicate solution (such as sodium silicate), acidizing it, adding a certain amount of electrolyte to agitate it, that is to say, to form silicic acid gel, or adding acid or ammonium salt to a more concentrated sodium silicate solution can also produce silicic acid gel. The silicic acid gel was aged for a few hours, then washed with hot water to remove the soluble salts, dried at 6070 ℃ and activated at about 300 ℃, the silica gel could be obtained. Silica gel was soaked in cobalt chloride solution and then dried and activated to obtain discoloration silica gel. When it is used as desiccant, it is blue before water absorption and turns red after water absorption. The degree of water absorption can be seen from the change of color, and whether regeneration is necessary. Silica gel is also widely used in steam recovery, petroleum refining and catalyst preparation. Silica gel is a porous material with different particle size, which is properly dehydrated by silica gel mSiO2 nH2O. It is a good desiccant, adsorbent and catalyst carrier because of its open porous structure, large specific surface area (unit mass surface area) and the ability to adsorb many substances. The adsorption of silica gel is mainly physical adsorption, which can be regenerated and reused. Adding acid to alkaline silicate solution (such as sodium silicate), acidizing it, adding a certain amount of electrolyte to agitate it, that is to say, to form silicic acid gel, or adding acid or ammonium salt to a more concentrated sodium silicate solution can also produce silicic acid gel. The silicic acid gel was aged for a few hours, then washed with hot water to remove the soluble salts, dried at 6070 ℃ and activated at about 300 ℃, the silica gel could be obtained. Silica gel was soaked in cobalt chloride solution and then dried and activated to obtain discoloration silica gel. When it is used as desiccant, it is blue before water absorption and turns red after water absorption. The degree of water absorption can be seen from the change of color, and whether regeneration is necessary. Silica gel is also widely used in steam recovery, petroleum refining and catalyst preparation.