Mouse Pad Silicone Dongguan Heng Heng Li Yawei printing equipment materials firm interpretation of the word: Formula xSio 2 · yH2O. Transparent or white granular solid. Has an open porous structure, strong adsorption Dongguan silicone products, can absorb a variety of substances. Dilute sulfuric acid (or hydrochloric acid) in an aqueous solution of sodium silicate and allowed to stand, it will become a hydrous silicate gel and solid state technology. Washed with water clear electrolyte dissolved therein Na + and SO4 2- (Cl-) ions, and dried silica gel can be obtained. Such as the absorption of water, about 40% moisture. For gas drying, silicone products factory in Dongguan, liquid dehydration, gas absorption chromatography, also used as a catalyst. Such as adding cobalt chloride, dry blue, red after absorbing water. Repeated use of renewable. Phone silicone keys Dongguan Heng Heng Li Yawei printing equipment materials firm roasting method for coarse-pored silica gel, can be placed inside the roaster is gradually warming up to 500--600 ℃ silicone products, after about 6-8 hours to silicone rubber was white or brown can. On the pores of silica gel, calcination temperature should not exceed 200 ℃. Rinsing the silica gel adsorption method in saturated steam heat saturated after water immersion rinse, detergent to remove oils or other organic impurities can be combined, drying after dehydration and then by washing water. Dongguan silicone products | silicone | Hang Yawei printing equipment provided by the Dongguan Heng Heng Li Yawei printing equipment materials firm. Dongguan Heng Li Heng Yawei printing equipment materials firm (dghyw88.1688.com) strong, credible, in plate making, printing supplies, and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yawei constant printing equipment and you hand into the brilliant, for a better future!