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Polylactic acid PLA reaction kettle deviceforPolylactic acid PLA reaction kettle deviceThe design volume of the reaction kettle is 2L, and it is heated by a high and low temperature circulating oil bath machine. The main material of the equipment is 316L, and the stirring speed of the reaction kettle can reach 100rpm. The material viscosity can reach 200Pa. s, and a double screw belt stirring blade is used. An anti climbing rod device is installed on the upper part of the stirring rod to effectively reduce the material climbing effect. The design pressure of the reaction kettle is 10MPa, and the operating pressure can reach 6MPa (negative pressure is used during polymerization experiments, while also considering other high-pressure experiments). The vacuum of the empty kettle can reach 50Pa, with a design temperature of 350 ℃ and an operating temperature of 310 ℃. The feeding tank, esterification pipeline, and condensation pipeline of the device are all designed with heat tracing to prevent material low-temperature crystallization from blocking the pipeline. The device adopts a control mode of PLC+touch screen configuration, which can observe the status of each monitoring point, temperature curve, pressure curve, etc. in real time during the reaction process, and can export the data for processing.

Polylactic acid PLA reaction kettle deviceparameter