• 专利标题:   Material useful for building 3D printing fast forming comprises raw material including e.g. carbon black, graphene, clay, alkali-resistant glass short fiber, photoinitiator, polyvinyl alcohol and coupling agent, and water.
  • 专利号:   CN112812494-A
  • 发明人:   LIU H, WU C
  • 专利权人:   SHANDONG LANHE INTELLIGENT TECHNOLOGY CO
  • 国际专利分类:   B33Y070/10, C08K013/04, C08K003/04, C08K003/34, C08K007/14, C08L029/04, C08L033/00, C08L055/02
  • 专利详细信息:   CN112812494-A 18 May 2021 C08L-055/02 202151 Pages: 7 Chinese
  • 申请详细信息:   CN112812494-A CN10195930 22 Feb 2021
  • 优先权号:   CN10195930

▎ 摘  要

NOVELTY - Material comprises raw material and 10-13 wt.% water, where the raw material includes 80-100 pts. wt. acrylonitrile butadiene styrene (ABS) engineering plastic, 3-5 pts. wt. PRIMAL (RTM: Acrylic Emulsion Polymer) copolymer emulsion, 0.2-0.4 pts. wt. carbon black, 8-10 pts. wt. graphene, 10-12 pts. wt. clay, 0.1-0.3 pts. wt. alkali-resistant glass short fiber, 1-3 pts. wt. photoinitiator, 10-12 pts. wt. polyvinyl alcohol and 0.5-0.7 pts. wt. coupling agent. USE - The material is useful for building 3D printing fast forming (claimed). ADVANTAGE - The material contains ABS engineering plastic and photoinitiator which can be quickly dried after printing, good for rapid forming. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the material, comprising (a) uniformly adding the raw material containing the dried ABS plastic, PRIMAL (RTM: Acrylic Emulsion Polymer) copolymer emulsion, carbon black, graphene, clay, alkali-resistant glass short fiber, photoinitiator, polyvinyl alcohol and coupling agent into a conical double-screw extruder, melting at 180-200 degrees C, extruding and granulating; where the temperature of the charging barrel includes the hopper part maintained at 150-170 degrees C, the front part of the charging barrel maintained at 180-200 degrees C, the mold head temperature is 180-190 degrees C, the mold temperature is 190-210 degrees C, the rotating speed of the screw is 150-180 revolutions/minute to obtain a mixture A; (b) crushing and grinding the mixture A to 200-220 meshes to obtain a powder A; (c) calcining the clay for 4-5 hours at 390-410 degrees C, then cooling to 30-40 degrees C, and crushing to 200-220 meshes, then grinding for 1-2 hours, drying to obtain a powder B; and (d) then mixing and stirring the mixture A and powder B, and adding water, mixing at 120-150 revolutions/minute for 30 minutes, then drying for 5-6 hours to obtain a 3D printing material.