• 专利标题:   Preparing graphene oxide polyamine curing agent powder comprises e.g. using Hummer's method to prepare graphene oxide, performing ultrasonic treatment to the obtained mixture, placing in oven to dry to obtain honeycomb-shaped substance and crushing honeycomb-shaped object.
  • 专利号:   CN113980247-A
  • 发明人:   XU Y, ZHANG T
  • 专利权人:   SHANGHAI QIANXING MATERIAL TECHNOLOGY CO
  • 国际专利分类:   C08G059/50, C09J163/00
  • 专利详细信息:   CN113980247-A 28 Jan 2022 C08G-059/50 202239 Chinese
  • 申请详细信息:   CN113980247-A CN11197602 14 Oct 2021
  • 优先权号:   CN11197602

▎ 摘  要

NOVELTY - Preparing graphene oxide polyamine curing agent powder comprises e.g. taking natural graphite as raw material, using Hummer's method to prepare graphene oxide, when Hummer's method processing, the oxidation stage of graphite, adding graphite oxide, placing in the glass container filled with solvent comprising de-ionized water and absolute ethyl alcohol, then performing ultrasonic treatment to the obtained mixture, mixing the additive with the mixture to obtain the secondary mixture, stopping the dropping of the polyamine solution to obtain precipitate, adding the precipitate into the mixture of ether and alcohol, sealing, placing in the oven for heating treatment, filtering to obtain precipitate, then using de-ionized water to the to clean, then placing in the oven to dry to obtain the honeycomb-shaped substance, crushing the honeycomb-shaped object, obtaining graphene oxide polyamine curing agent powder. USE - The method is useful for preparing graphene oxide polyamine curing agent powder. ADVANTAGE - The method: can reduce toxicity of ethylenediamine, hexamethylene diamine and m-phenylenediamine. DETAILED DESCRIPTION - Preparing graphene oxide polyamine curing agent powder comprises taking natural graphite as raw material, using Hummers method to prepare graphene oxide, when Hummers method processing, the oxidation stage of graphite, adding graphite oxide, placing in the glass container filled with solvent comprising de-ionized water and absolute ethyl alcohol, then performing ultrasonic treatment to the obtained mixture, and time is 5-30 minutes, then centrifuging for 4000-20000 revolutions/minute to obtain the graphene oxide sol and additive component comprising ethylene glycol and glycerol, mixing the additive with the mixture to obtain the secondary mixture, placing the secondary mixture in an oven to heat and then cooling at room temperature to obtain sol, taking polyamine, dissolving in de-ionized water to obtain polyamine solution, the concentration is 30-95 wt.%, the mark is polyamine solution, the magnetic stirring device in the sol, stirring, dropping the polyamine solution, and volume of the liquid drop: 0.1-1 ml, with the drop of polyamine solution, precipitate appears, when the sol is transparent, stopping the dropping of the polyamine solution to obtain precipitate, adding the precipitate into the mixture of ether and alcohol, sealing, placing in the oven for heating treatment at 30-95degrees Celsius, taking out after 5-100 minutes, filtering to obtain precipitate, then using de-ionized water to the to clean, then placing in the oven to dry at 30-90degrees Celsius to obtain the honeycomb-shaped substance, crushing the honeycomb-shaped object, obtaining graphene oxide polyamine curing agent powder.