Made of silica gel as the main raw material, it is called silica gel product. Silica gel is a porous material with different particle sizes that are properly dehydrated from silicic acid gel. With an open porous structure, it can adsorb many substances and is a good desiccant, adsorbent and catalyst carrier. Adsorption of silica gel is mainly physical adsorption, which can be regenerated and used repeatedly. The acid in the solution of alkali metal silicate (such as sodium silicate) is acidified, then a certain amount of electrolyte is added for stirring to generate a silicate gel, or acid or ammonium is added to a more concentrated sodium silicate solution. Salt can also generate silicic acid gels. The silicic acid gel is allowed to stand for several hours to be aged, and then the soluble salts are washed away with hot water, dried at 60-70°C and activated at about 300°C to obtain silica gel.
Silicone watch band with wear resistance, high temperature resistance, no deformation, non-toxic, odorless, no side effects on the human body and other characteristics and soft, non-cracking, long life, does not stimulate the skin and other advantages, cheap products, promotional gifts, is green One of the environmentally friendly silicone accessories.
Silicone watch is made of 100% pure natural solid silicone rubber pressed by hydraulic press; silicone watch itself has certain tension and softness, so it is easy to deform and immediately recover; silicone watch has wear-resisting, high temperature resistance, no deformation, no poison, Odorless, no side effects on the human body and other characteristics and soft, non-cracking, long life, does not stimulate the skin and other advantages, silicone watch is a real green jewelry. In recent years, people have begun to add some functional materials such as negative ions, neodymium, titanium, and far infrared to the raw materials of silicone wristwatch belts for processing, which has certain health functions. Such as silica gel can table, silica gel anion table, etc. are used to add negative ions and other elements into the silica gel material together with processing to produce silica gel watch strap.