▎ 摘 要
NOVELTY - Silica gel electrode sheet comprises conductive silica gel sheet body and conductive sheet embedded in conductive silica gel sheet body, where the conductive sheet is suitable for connecting with a lead wire, and the side where the conductive silicone sheet body is attached to the skin is a smooth surface. USE - As silica gel electrode sheet. ADVANTAGE - The silica gel electrode sheet has extremely low impedance of volume resistivity of less than or equal to 5 Omega cm3, more uniform impedance which makes it without irritation during electrical stimulation massage physiotherapy, extremely low polarization and reusability, and is not easy to lose carbon black during use, which greatly improves the use experience. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a conductive silica gel to make conductive silica gel sheet body comprising 55-75 pts. wt. methyl vinyl dimethicone, 20-40 pts. wt. silica, 5-8 pts. wt. hydroxy silicone oil and 1-2 pts. wt. conductive powder; and (2) a method for preparing silica gel electrode sheet, involving (i) mixing 55-75 pts. wt. methyl vinyl dimethicone, 20-40 pts. wt. silicon dioxide, 5-8 pts. wt. hydroxy silicone oil, 1-2 pts. wt. acetylene carbon black or graphene powder, fully stirring and mixing in a rubber mixer for 30 minutes to obtain a rubber compound, (ii) injecting the rubber compound into a mold for compression molding, and simultaneously vulcanizing at a temperature of 200-250 degrees C for several minutes, and (iii) putting the silicone electrode sheet molded in step (ii) into a high temperature box for secondary vulcanization molding, and (iv) inspecting the silica gel electrode sheet after secondary vulcanization in step (iii), and rejecting defective products.