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  • 专利标题:   Air flow generating device for preparing graphene powder, has thread which is spirally distributed on outer surface of rotating portion from bottom of rotating portion toward top of rotating portion, and passes through thread.
  • 专利号:   CN108069417-A, TW201819764-A, TW201819291-A, TW613366-B1, TW636954-B1
  • 发明人:   WU D, ZHANG T, LI X, LIN B, WU T, CHANG T, LI H
  • 专利权人:   TAIWAN TEXTILE RES INST, TAIWAN TEXTILE RES INST
  • 国际专利分类:   B82Y030/00, B82Y040/00, C01B032/19, C01B032/194, F04B037/10, F04B039/00, F04D029/30, C01B032/20, C09C001/46
  • 专利详细信息:   CN108069417-A 25 May 2018 C01B-032/19 201840 Pages: 17 Chinese
  • 申请详细信息:   CN108069417-A CN10350845 18 May 2017
  • 优先权号:   TW137505, TW137506, TW137512

▎ 摘　　要

NOVELTY - The device (100) has an outer liner (110) having a chamber (112), an air inlet opening (114) and an air outlet opening (116). The inlet opening communicates with the chamber and the outlet opening communicates with the chamber. The chamber has a necked portion and a rotating awl (120) is arranged in the chamber, and the rotating awl conforms to the chamber. A gap is provided between the rotating awl and the inner wall of the chamber. The rotating awl includes a rotating portion (122) and multiple threads (124). The thread is spirally distributed on the outer surface of the rotating portion from the bottom of the rotating portion toward the top of the rotating portion, and passes through the thread when the rotating awl rotates in the chamber. The slit pitch produces a cyclone that is upward and has a horizontal component. USE - Air flow generating device for preparing graphene powder. ADVANTAGE - The gas flow generating device uses a direct continuous physical method to make a graphene powder with a low oxygen content characteristic of a graphite material, and the graphene powder has a fixed number of layers and a consistent feature of the chip diameter and is low. The device is easily homogenized under energy and has no structural damage due to oxidation. The device provides a graphene dispersion prepared by using the graphene powder, which has high yield, high solid content, and adjustability of solid content, etc. The graphene dispersion solution is solved commercially. The low solids content of the product and the problem of low solvent selectivity improve the processability and adaptability of different coating processes. The device is used in field of coatings. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene powder. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of an air flow generating device. Air flow generating device (100) Outer liner (110) Chamber (112) Air inlet opening (114) Air outlet opening (116) Rotating awl (120) Rotating portion (122) Thread (124)