• 专利标题:   Preparing hydrophilic and hydrophobic composite film used for film distillation, crystallization, absorption, extraction, involves soaking porous base film into oil phase monomer solution, taking out to obtain oily porous film, and contacting with aqueous phase solution followed by polymerization.
  • 专利号:   CN115253717-A
  • 发明人:   WAN Y, LUO Q, XIA J, LEI C, SHEN F
  • 专利权人:   CANGZHOU LINGANG ZHONGKEBAO BIOTECHNOLOG, INST PROCESS ENG CHINESE ACAD SCI
  • 国际专利分类:   B01D061/00, B01D061/24, B01D061/36, B01D067/00, B01D069/02, B01D069/12, B01D071/06
  • 专利详细信息:   CN115253717-A 01 Nov 2022 B01D-069/12 202301 Chinese
  • 申请详细信息:   CN115253717-A CN10864019 21 Jul 2022
  • 优先权号:   CN10864019

▎ 摘  要

NOVELTY - Preparing hydrophilic and hydrophobic composite film involves soaking hydrophobic porous base film into oil phase monomer solution, taking out to obtain oily porous film; contacting oily porous film and aqueous phase monomer solution followed by polymerization to obtain final product. USE - Method for preparing hydrophilic and hydrophobic composite film used for film distillation, crystallization, absorption and extraction (claimed). ADVANTAGE - The method has fast preparation speed; simple operation method and easy to amplify, without pre-processing surface of hydrophobic porous base film; has high flux and excellent pollution resistance; has excellent stain resistance, without damaging original structure of film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a hydrophilic and hydrophobic composite film.