摘要:
The invention relates to a device (1a..1i) for processing thermoplastic plastic which comprises a storage container (2) for receiving pieces of plastic particles or a conveying line (14) for conveying the pieces of plastic particles, and to a conveying screw (3) connected to the storage container (2)/the conveying line (14) at a transfer opening (A). The device (1a..1i) also has an extruder (4) which connects to the conveying screw (3), and an air outlet (7) situated opposite the transfer opening (A) and directed at this opening. The invention also relates to a method for operating the device (1a..1i) in which an air stream is aligned with the transfer opening (A). The strength and/or the direction of the air stream is controlled depending on a load level of the extruder (4).
摘要:
The present invention discloses an electrospinning composition comprising a catalyst and a functionalized polymer or copolymer bearing one or more epoxy ring. The mixture further comprises an anhydride, preferably phthalic anhydride as a cross-linking agent. Wherein a molar ratio of epoxy to anhydride in the electrospinning composition is within the range of 1:1 to 50:1. The present invention further discloses a preparation method of the electrospinning composition and an electrospun nano-/submicrostructures prepared using the method and composite material comprising the electrospun nano-/submicrostructures.