• 专利标题:   Modifying carbon fiber/epoxy resin composite by dispersing graphene in solvent, soaking carbon fiber cloth in graphene slurry, mixing epoxy resin, curing agent and antifoaming agent, soaking carbon fiber cloth, laying in mold and curing.
  • 专利号:   CN110396282-A
  • 发明人:   MENG Z, LIU X, SUN Q, ZHOU L, WANG X, CHUAN Y, SHANG G
  • 专利权人:   UNIV XIAN AERONAUTICAL
  • 国际专利分类:   C08K003/04, C08K007/06, C08L063/00
  • 专利详细信息:   CN110396282-A 01 Nov 2019 C08L-063/00 201990 Pages: 11 Chinese
  • 申请详细信息:   CN110396282-A CN10816268 30 Aug 2019
  • 优先权号:   CN10816268

▎ 摘  要

NOVELTY - Method for modifying carbon fiber/epoxy resin composite, involves (i) completely dispersing graphene in solvent to prepare 0.1-1.2 %mass graphene slurry, (ii) soaking carbon fiber cloth in the graphene slurry obtained by step (i), and drying to remove residual solvent, (iii) mixing epoxy resin, curing agent and antifoaming agent in a mass ratio of 10:(3-5):(0.01-0.05), and removing bubbles to obtain a mixture, (iv) soaking the interface-modified carbon fiber cloth in the mixture obtained in step (iii) for 5-10 minutes, and laying in a mold from bottom to top in the way of layering until flush with the top surface of the mold, where each layer of the mixture is completely dispersed in the corresponding carbon fiber cloth, and (v) naturally curing the paved product obtained in step (iv) at room temperature. USE - The method is useful for modifying carbon fiber/epoxy resin composite. ADVANTAGE - The method improves the bending property of the modified composite material, has mild reaction conditions and strong practicability, and is simple and easy to operate.