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New plastic wood extruder does not require pre-drying
Japanese CTE Corporation exhibited HTM-type twin-screw continuous kneading extruder for plastic-wood composite (WPC) compounding at K2004, and proposed a new concept for compounding WPC, that is, there is no need to pre-dry wood flour during WPC preparation, nor Pre-drying plastics such as PP, PVC, HDPE and PS. In addition, the wood flour content can be as high as 70% to 75%. According to CTE, the extruder is also suitable for the preparation of high-filling compounds and halogen-free flame-retardant compounds for the automotive industry, such as flame-retardant PE or resistance for wire and cable with magnesium hydroxide contents of 50% to 70%. Burning grade PP resin. HTM twin-screw continuous kneading extruder is characterized by low energy consumption. After the vacuum degassing zone, a twin-screw kneader and a counter-rotating twin-screw extruder are connected in series. The melting temperature of the material is lower by 10 to 20°C than that of a general twin-screw machine. But the output is higher. The device overcomes the disadvantages of the inconsistent feeding of the conventional equipment and can adapt to the requirements of raw material compounding with different melt viscosity and melting temperature. CTE Company pointed out that the HTM twin-screw extruder has the kneading effect of the Banbury kneader, and it also has the advantages of flexible mixing of the twin-screw extruder.