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Preparation method of concentrated graphene oxide solution and heat-conducting film
The invention discloses a preparation method of a concentrated graphene oxide solution and a heat-conducting film. One specific embodiment of the preparation method of the concentrated graphene oxidesolution comprises the following steps: forming negative charges on the surface of graphene oxide in a graphene oxide aqueous solution; carrying out colloidization on the graphene oxide aqueous solution with the negative charges by utilizing metal salt to form metal-doped graphene oxide colloid; and concentrating and separating the metal-doped graphene oxide colloid to obtain a metal-doped graphene oxide aqueous solution, namely the concentrated graphene oxide solution. According to the embodiment of the invention, the concentration of the graphene oxide is improved by preparing the metal-doped graphene oxide aqueous solution; the problems that in the prior art, graphene oxide is low in concentration and difficult to improve are solved. The heat-conducting film is prepared from the concentrated graphene oxide solution, so that the energy consumption of later water treatment can be reduced, and the longitudinal heat conductivity of the heat-conducting film can be greatly improved, thereby obtaining the heat-conducting film with high heat conductivity coefficient.
本发明公开了一种浓缩氧化石墨烯溶液及导热膜的制备方法。浓缩氧化石墨烯溶液的制备方法一具体实施方式包括：形成负电荷于氧化石墨烯水溶液中氧化石墨烯表面；利用金属盐对具有负电荷的氧化石墨烯水溶液进行胶体化，形成金属掺杂的氧化石墨烯胶体；将所述金属掺杂的氧化石墨烯胶体浓缩分离，得到金属掺杂的氧化石墨烯水溶液，即浓缩氧化石墨烯溶液。该实施方式本发明实施例通过制备金属掺杂的氧化石墨烯水溶液提高了氧化石墨烯的浓度；克服了现有技术中氧化石墨烯浓度低且难以提高的问题。利用浓缩氧化石墨烯溶液制得导热膜，不仅能够降低后期水处理的能耗，而且能够极大提高导热膜的纵向热导率，从而获得高导热系数的导热膜。
Preparation method of concentrated graphene oxide solution and heat-conducting film
The invention discloses a preparation method of a concentrated graphene oxide solution and a heat-conducting film. One specific embodiment of the preparation method of the concentrated graphene oxidesolution comprises the following steps: forming negative charges on the surface of graphene oxide in a graphene oxide aqueous solution; carrying out colloidization on the graphene oxide aqueous solution with the negative charges by utilizing metal salt to form metal-doped graphene oxide colloid; and concentrating and separating the metal-doped graphene oxide colloid to obtain a metal-doped graphene oxide aqueous solution, namely the concentrated graphene oxide solution. According to the embodiment of the invention, the concentration of the graphene oxide is improved by preparing the metal-doped graphene oxide aqueous solution; the problems that in the prior art, graphene oxide is low in concentration and difficult to improve are solved. The heat-conducting film is prepared from the concentrated graphene oxide solution, so that the energy consumption of later water treatment can be reduced, and the longitudinal heat conductivity of the heat-conducting film can be greatly improved, thereby obtaining the heat-conducting film with high heat conductivity coefficient.
本发明公开了一种浓缩氧化石墨烯溶液及导热膜的制备方法。浓缩氧化石墨烯溶液的制备方法一具体实施方式包括：形成负电荷于氧化石墨烯水溶液中氧化石墨烯表面；利用金属盐对具有负电荷的氧化石墨烯水溶液进行胶体化，形成金属掺杂的氧化石墨烯胶体；将所述金属掺杂的氧化石墨烯胶体浓缩分离，得到金属掺杂的氧化石墨烯水溶液，即浓缩氧化石墨烯溶液。该实施方式本发明实施例通过制备金属掺杂的氧化石墨烯水溶液提高了氧化石墨烯的浓度；克服了现有技术中氧化石墨烯浓度低且难以提高的问题。利用浓缩氧化石墨烯溶液制得导热膜，不仅能够降低后期水处理的能耗，而且能够极大提高导热膜的纵向热导率，从而获得高导热系数的导热膜。
Preparation method of concentrated graphene oxide solution and heat-conducting film
一种浓缩氧化石墨烯溶液及导热膜的制备方法
YOU YONG (author) / ZHANG HUITAO (author) / GUO YUFEN (author) / LIU ZHAOPING (author)
2020-07-10
Patent
Electronic Resource
Chinese
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