Using silica gel as the main raw material for processing works, are known for silicone products. Silica gel is by silicic acid gel suitable dehydration of particles of different sizes of porous material. With open porous structure, can absorb a lot of material is a good desiccant, adsorbent and catalyst carrier.
Silica gel is a kind of granular, glass, porous form of silica from the synthesis of preparing sodium silicate. Silica gel is hardship and toil; more solid than ordinary household gel like gelatin and agar. It is refined and processed into either granular or bead like form of naturally occurring minerals. As a drying agent. It is 2.4 nm average pore size and have a strong affinity for water molecules.
Silica gel in the daily life the most commonly encountered a small (general Pearl 2 x 3 cm) package. In this form, it is used as a desiccant to control the local humidity, so as to avoid damage to the goods or degradation. As the silica gel can add chemical index and absorption of moisture is very good, silica pack usually assume the user do not eat content warning.
Characteristics of silica gel mould:
Silicone rubber to have good operating performance.
The mobility of silica gel is better, the viscosity is low and easy to operate.
Silicone rubber shrink the smaller the better.
The silicone rubber tension is better.
Can´t do out of the silicone rubber mold deformation.
The hardness of silicone rubber products should be suitable for use.
The high temperature resistant, mold number, service life as long as possible, acid and alkali resistance to aging.