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Composite film and preparation method thereof
The preparation method comprises the following steps: cutting, grinding and sieving a carbon felt/graphite felt, and vibrating and dispersing the carbon felt/graphite felt in a closed space to obtain continuously and uniformly falling carbon fiber dust; uniformly spraying the graphene oxide slurry into a closed space, and physically mixing the graphene oxide slurry with the carbon fiber dust according to a certain proportion to obtain a mixed solution with uniformly mixed solid and liquid; depositing the mixed solution on a polypropylene fiber base material to obtain a graphene oxide/carbon fiber composite film; the composite film passes through a drying machine, and a graphene oxide/carbon fiber composite dry film is obtained; performing carbonization heat treatment on the graphene oxide/carbon fiber composite dry film in an oxygen-free environment to obtain a carbonized film; performing graphitization heat treatment on the carbonized film in an oxygen-free environment to obtain a graphitized film; and carrying out calendering and densifying treatment on the graphitized film to obtain the high-thermal-conductivity ultrathin graphene/carbon fiber composite film. The method has the advantage that the carbon fiber powder is uniform in the graphene oxide slurry.
本申请涉及一种复合膜及制备方法，包括如下步骤，将碳毡/石墨毡切割、研磨、过筛，震动分散于密闭空间，获得连续均匀掉落的碳纤维粉尘；将氧化石墨烯浆料均匀喷洒于密闭空间与碳纤维粉尘物理以一定比例混合，获得固液均匀混合的混合液；混合液沉积于丙纶基材上，获得氧化石墨烯/碳纤维复合膜；将复合膜经过烘干机，获得氧化石墨烯/碳纤维复合干膜；将氧化石墨烯/碳纤维复合干膜在无氧环境下进行碳化热处理，获得碳化膜；将碳化膜在无氧环境下进行石墨化热处理，获得石墨化膜；将石墨化膜进行压延增密处理，获得高导热超薄石墨烯/碳纤维复合膜。本申请具有碳纤维粉在氧化石墨烯浆料中均匀的较好的优点。
Composite film and preparation method thereof
The preparation method comprises the following steps: cutting, grinding and sieving a carbon felt/graphite felt, and vibrating and dispersing the carbon felt/graphite felt in a closed space to obtain continuously and uniformly falling carbon fiber dust; uniformly spraying the graphene oxide slurry into a closed space, and physically mixing the graphene oxide slurry with the carbon fiber dust according to a certain proportion to obtain a mixed solution with uniformly mixed solid and liquid; depositing the mixed solution on a polypropylene fiber base material to obtain a graphene oxide/carbon fiber composite film; the composite film passes through a drying machine, and a graphene oxide/carbon fiber composite dry film is obtained; performing carbonization heat treatment on the graphene oxide/carbon fiber composite dry film in an oxygen-free environment to obtain a carbonized film; performing graphitization heat treatment on the carbonized film in an oxygen-free environment to obtain a graphitized film; and carrying out calendering and densifying treatment on the graphitized film to obtain the high-thermal-conductivity ultrathin graphene/carbon fiber composite film. The method has the advantage that the carbon fiber powder is uniform in the graphene oxide slurry.
本申请涉及一种复合膜及制备方法，包括如下步骤，将碳毡/石墨毡切割、研磨、过筛，震动分散于密闭空间，获得连续均匀掉落的碳纤维粉尘；将氧化石墨烯浆料均匀喷洒于密闭空间与碳纤维粉尘物理以一定比例混合，获得固液均匀混合的混合液；混合液沉积于丙纶基材上，获得氧化石墨烯/碳纤维复合膜；将复合膜经过烘干机，获得氧化石墨烯/碳纤维复合干膜；将氧化石墨烯/碳纤维复合干膜在无氧环境下进行碳化热处理，获得碳化膜；将碳化膜在无氧环境下进行石墨化热处理，获得石墨化膜；将石墨化膜进行压延增密处理，获得高导热超薄石墨烯/碳纤维复合膜。本申请具有碳纤维粉在氧化石墨烯浆料中均匀的较好的优点。
Composite film and preparation method thereof
一种复合膜及制备方法
LI KAI (author) / ZHANG HANG (author) / WEI XINLONG (author) / MA XURUI (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
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