2results about How to "Quantitative low" patented technology

The application discloses a kind of low basis weight high-density fiber material preparation methods, the fiber material includes fiber layer and hot melt powder layer;The fiber layer is filled with superfine powder;Including the following steps: (1) polyvinyl alcohol ultra-short fiber, polyester superfine ultra-short fiber, fine denier ultra-short cellulose fiber are made into mixed slurry, then wet-laid web is made;(2) the wet-laid web is consolidated into intermediate material, then the intermediate material hot water bath is made, and polyvinyl alcohol ultra-short fiber is dissolved;(3) superfine powder is made into suspension, and filled into intermediate material;(4) hot melt powder is made into suspension slurry and coated and fixed.Reduce the unit area mass of material, increase the density of material under low basis weight, utilize the thermal closing pore effect of superfine powder, ensure the safety of battery separator product.Realize the technical requirement of low basis weight, high density and high porosity, solve the problem that existing fiber material cannot meet the use requirement of battery separator.

This disclosure relates to the field of electrochemical detection technology, specifically a microfluidic electrochemical detection device, comprising a base, a channel plate, a filter device, a glass cover plate, and an electrode plate. The base includes an electrode groove. The channel plate is disposed on the base and includes an inlet channel, a reaction chamber, and an outlet channel that are interconnected. The reaction chamber has a first open end and a second open end. The inlet channel includes a first flow channel and a second flow channel, with the second flow channel communicating with the reaction chamber. The outlet channel has a drain port at its end near the reaction chamber. Along the axial direction of the outlet channel, and in the direction from the side away from the reaction chamber to the side near the reaction chamber, the cross-sectional area of ​​the drain port gradually increases. The filter device is embedded within the channel plate and located between the first and second flow channels. The glass cover plate is sealed to the first open end. The electrode plate is embedded within the electrode groove and sealed to the second open end. The detection device of this disclosure exhibits high detection accuracy and provides highly accurate detection results.