• 专利标题:   Preparing antibacterial and corrosion resistant metal orthodontic appliance, involves polishing metal appliance, mixing graphene oxide and nano-silver particles, and adding pretreated metal appliance into electrodeposition solution.
  • 专利号:   CN112708918-A, CN112708918-B
  • 发明人:   ZHANG C, HE L, DAI D, CHEN Y, WANG J
  • 专利权人:   UNIV TIANJIN MEDICAL STOMATOLOGICAL HOSP
  • 国际专利分类:   A61C007/00, C25D015/00, C25D003/46, C25D005/36, C25D005/38, C25D007/00, C25D007/06
  • 专利详细信息:   CN112708918-A 27 Apr 2021 C25D-015/00 202147 Pages: 13 Chinese
  • 申请详细信息:   CN112708918-A CN11453314 11 Dec 2020
  • 优先权号:   CN11453314

▎ 摘  要

NOVELTY - Method for preparing antibacterial and corrosion resistant metal orthodontic appliance, involves (a) grinding, polishing, cleaning and drying metal appliance, (b) mixing graphene oxide and nano-silver particles in a mass ratio of 1.25-5:2.5, and ultrasonically preparing a graphene oxide/silver nanoparticles aqueous solution to obtain an electrodeposition solution, (c) adding the pretreated metal appliance into the electrodeposition solution, and adopting constant current electrodeposition at 50-100 degrees C for 1-24 hours with a current density of 30-150 A/m2, and using the metal appliance as an anode and a platinum metal as a cathode, where the distance between the anode and the cathode is 1-10 cm, and (d) taking out the metal appliance after electrodeposition, washing and drying to obtain the product. USE - The method is useful for preparing antibacterial and corrosion resistant metal orthodontic appliance (claimed) for preparing dental metal materials. ADVANTAGE - The orthodontic appliance has simple operation, excellent controllability, long-lasting antibacterial activity and corrosion resistance, and is cost-effective.