Twin-screw extruder dies for phase-change temperature-regulating masterbatches

Abstract

The invention discloses a twin-screw extruder die head for phase-change temperature-regulating masterbatch, which comprises a transition plate, a flow stabilization plate connected with the transition plate, a forming plate connected with the flow stabilization plate, and a forming plate connected with the forming plate There is a flow channel a in the transition plate. The flow channel a is a fan-shaped flow channel connected with the barrel of the extruder. A flow channel b is opened in the steady flow plate. The flow channel b is a wave-shaped flow channel and The lower runners are parallel; a porous plate is set between the transition plate and the steady flow plate; the forming plate is also connected with the steady flow plate through mounting bolts, and a flow channel c is opened in the forming plate, and the flow channel c is a rectangular trapezoidal flow channel. A thermocouple is arranged on the outside of the flow channel c, and the mouth template is in the shape of a cuboid, and a plurality of die holes communicating with the flow channel c are arranged inside. The die head of the twin-screw extruder used for the phase-change temperature-regulating masterbatch of the present invention has a steady flow section to facilitate the release of the elastic potential energy in the molten material, and at the same time, the partial pressure of the template of the discharge port can be adjusted.

Description

technical field [0001] The invention relates to the technical field of spinning masterbatch production equipment, in particular to a twin-screw extruder die head for phase-change temperature-regulating masterbatch. Background technique [0002] Phase change energy storage material is a material that absorbs or releases a large amount of latent heat by changing its own phase state when the ambient temperature changes, so that its temperature is basically maintained at a constant value. As an energy storage medium, based on their high energy storage density, phase change energy storage materials have been widely used in various thermal energy-saving applications in recent years. Phase-change energy storage materials include inorganic phase-change materials, such as hydrated salts and metal alloys; organic phase-change materials, such as paraffin, fatty acids, and polyols. [0003] Among the known phase change materials, hydrated salts and metal alloys usually have a high late...

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