• 专利标题:   Preparation of polymeric material with radiation, conductive and optical conversion energy storage function, involves mixing graphene/titania-doped powder and resin, and blending with sodium dihydrogen phosphate and polyethylene wax.
  • 专利号:   CN103804877-A, CN103804877-B
  • 发明人:   LI X, GE M, LIU S, LIU W, JIN L
  • 专利权人:   UNIV JIANGNAN
  • 国际专利分类:   B29C047/92, C08K013/06, C08K003/04, C08K003/22, C08K003/32, C08K009/06, C08L023/12, C08L025/06, C08L067/00, C08L069/00, C08L077/00, C08L079/08
  • 专利详细信息:   CN103804877-A 21 May 2014 C08L-069/00 201447 Pages: 6 Chinese
  • 申请详细信息:   CN103804877-A CN10056813 19 Feb 2014
  • 优先权号:   CN10056813

▎ 摘  要

NOVELTY - Nano-graphene and nano-titania are mixed to obtain a conductive powder, and stirred with a silane coupling agent. The obtained graphene-and-titania-doped powder is screened to a diameter of 10-100 nm. The doped powder and resin powder are homogeneously premixed in a mass ratio of 10-50:30-60 and fed into a twin-screw extruder through a feeding port. 0.01-0.05 %Mass sodium dihydrogen phosphate and 5-10 %mass polyethylene wax are added and blended at 200-300 degrees C, to obtain a polymeric material with conductive and optical conversion storage function. USE - Preparation of polymeric material with radiation, conductive and optical conversion energy storage function (claimed). ADVANTAGE - The method enables preparation of polymeric materials having excellent strength and wear resistance. DETAILED DESCRIPTION - Resin slices are wet-ball-milled to powder of particle size 25-45 mu m, at 200-800 rpm and feed rate of 5-15 kg/minute. The powder is screen-filtered to obtain resin powder with a particle size of 25-15 mu m, and large particles are recovered and ground. Nano-graphene and nano-titania are mixed in a mass ratio of 1-4:1 to obtain a conductive powder, which is stirred with a silane coupling agent at 400-600 rpm for 40-70 minutes. The mass ratio of conductive powder and silane coupling agent is 1:5-50. The obtained graphene-and-titania-doped powder is screened to a diameter of 10-100 nm. The doped powder and resin powder are homogeneously premixed in a mass ratio of 10-50:30-60 and fed into a twin-screw extruder through a feeding port. 0.01-0.05 %Mass sodium dihydrogen phosphate and 5-10 %mass polyethylene wax are added and blended at 200-300 degrees C, to obtain a polymeric material with conductive and optical conversion storage function.