Abstract: A method for preparing anisotropic cellulose-based hydrogel is provided. The method comprises ammoniating the dialdehyde cellulose obtained by oxidizing cellulose using sodium periodate to obtain ammoniated cellulose derivatives; performing Schiff reaction using the ammoniated cellulose derivatives and dopamine to obtain cellulose-based nanosheets; depositing Fe3O4 nanoparticles on a surface of the cellulose-based nanosheets by a deposition method to obtain magnetic cellulose-based nanosheets; and forming the anisotropic cellulose-based hydrogel using the magnetic cellulose-based nanosheets by a polymerization method.

Abstract: An inlet water pipe includes a first pipe, and a second pipe mounted into the first pipe. A first channel transporting first liquid is formed through the first pipe. A second channel transporting second liquid is formed between the first pipe and the second pipe. A connecting sleeve is hollow and is mounted around a front end of the first pipe. A valve core is mounted on a front end of the connecting sleeve, and having a center hole centrally and axially formed through the valve core and multiple water outlets formed in a periphery of the valve core and communicating with the second pipe. The inlet water pipes gathers two different waterways in one inlet pipe and allow easy connection with faucet, and ensures good hermetic seal.

Abstract: An inlet water pipe includes a first pipe, and a second pipe mounted into the first pipe. A first channel transporting first liquid is formed through the first pipe. A second channel transporting second liquid is formed between the first pipe and the second pipe. A connecting sleeve is hollow and is mounted around a front end of the first pipe. A valve core is mounted on a front end of the connecting sleeve, and having a center hole centrally and axially formed through the valve core and multiple water outlets formed in a periphery of the valve core and communicating with the second pipe. The inlet water pipes gathers two different waterways in one inlet pipe and allow easy connection with faucet, and ensures good hermetic seal.