From the whole, the theory of twin screw extruder is still in the initial period, which is called "the skill is more than science":
1, change the rules in the process of polymer extrusion, transporting the solid melt conveying exhaust principle and rules, establish the mathematical physics model to optimize the design guidance of twin-screw extruder and extrusion process.
2, it is necessary to find out more than two kinds of polymers and materials in the extrusion process to change the state of physical reality, mixed shape, the process of structural change, as well as the final mixture and function
3, as a twin screw extruder, extrusion reaction reaction process, speed, function and the configuration of the screw, the internal relationship between the operating conditions, set up a model to guide the formation of reactive extrusion.