• 专利标题:   Preparing graphene oxide-based oxazole type mixed matrix membrane, comprises e.g. preparing 2-(4-aminophenyl)-5-aminobenzoxazole, oxazole type polyimide, and functionalized graphene, mixing with dimethylacetamide, applying casting solution and treating prefabricated membrane.
  • 专利号:   CN115554866-A
  • 发明人:   LI X
  • 专利权人:   TIANJIN CHINATECH MATERIALS TECHNOLOGY
  • 国际专利分类:   B01D053/22, B01D061/00, B01D067/00, B01D069/02, B01D071/02, B01D071/06, B01D071/64
  • 专利详细信息:   CN115554866-A 03 Jan 2023 B01D-071/64 202314 Chinese
  • 申请详细信息:   CN115554866-A CN11355169 01 Nov 2022
  • 优先权号:   CN11355169

▎ 摘  要

NOVELTY - Preparing graphene oxide-based oxazole type mixed matrix membrane, comprises (1) preparing 2-(4-aminophenyl)-5-aminobenzoxazole, (2) preparing oxazole type polyimide, (3) preparing functionalized graphene, (4) mixing oxazole-type polyimide, functionalized graphene and dimethylacetamide evenly to obtain a casting solution, applying the casting solution on the template, and drying to obtain a prefabricated film, treating the prefabricated membrane at high temperature to obtain the desired mixed matrix membrane. USE - The method is useful for preparing graphene oxide-based oxazole type mixed matrix membrane, which is useful in the separation of carbon dioxide and carbon monoxide. ADVANTAGE - The membrane has high selectivity of carbon dioxide/methane. The method is simple, environmentally friendly, and excellent carbon dioxide separation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene oxide-based oxazole type mixed matrix membrane, obtained by the method as mentioned above.