Micro-cavity liquid-phase shearing device for preparing quasi-two-dimensional materials

A micro-cavity liquid-phase shearing device for preparing quasi-two-dimensional materials, which comprises a movable plate system, a fixed plate system, a feed liquid external circulation system, a driven gear system and a charging barrel, wherein:

• a feed liquid is provided within the charging barrel;
• the movable plate system comprises a movable plate unit and a driving gear;
• the driven gear system comprises multiple driven gears;
• the movable plate unit, which is provided within the charging barrel, comprises a tank and a movable plate around an opening of the tank;
• the driving gear is installed within the tank through a driving shaft, the driven gears are engaged with an external side of the driving gear, a lower end of the driving shaft is connected with a power machine, the movable plate unit is fixedly connected with the driving shaft, the driving shaft drives the driving gear and the movable plate unit to rotate;
• the fixed plate system comprises a fixed plate unit and a support, wherein the support is installed above the charging barrel, the fixed plate unit is provided under the support, the fixed plate unit comprises an annular fixed plate which is provided above the movable plate in parallel;
• the feed liquid external circulation system comprises a microfluidic pump, a discharge pipe and a feed pipe, wherein two ends of the discharge pipe are connected with a liquid discharge port of the charging barrel and a liquid feed port of the microfluidic pump, one end of the feed pipe is connected with a liquid discharge port of the microfluidic pump, another end of the feed pipe is provided above the driving gear;
• the tank has a primary shear cavity, an annular micro-gap between the movable plate and the fixed plate is defined as a secondary shear micro-cavity;
• the feed liquid, which flows outside the feed pipe through the liquid discharge port thereof, is primarily sheared in the primary shear cavity by the movable plate system, and then is secondarily sheared in the secondary shear micro-cavity by the movable plate and the fixed plate, and then returns to the charging barrel.