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Preparation method of carbon fiber reinforced high-strength and high-thermal-conductivity composite film
The invention belongs to the technical field of heat-conducting films, and particularly relates to a preparation method of a carbon fiber reinforced high-strength and high-thermal-conductivity composite film, which comprises the following steps: adding a dianhydride monomer into a solvent dissolved with a diamine monomer, stirring at 0-25 DEG C for at least 10 hours, adding graphene, and stirring until the graphene is uniformly dispersed to obtain a graphene-containing polyamide acid solution; infiltrating the graphene-containing polyamide acid solution by using continuous 160-300g/m < 2 > of carbon fiber cloth, and curing under the protection of nitrogen to prepare a heat-conducting film precursor; and finally, carbonizing and graphitizing the heat-conducting film precursor at 800-2000 DEG C under the protection of nitrogen to obtain the carbon fiber reinforced high-strength and high-heat-conducting composite film.
本发明属于导热膜技术领域，具体为一种碳纤维增强的高强度、高导热复合膜制备方法，包括向溶有二胺单体的溶剂中加入二酐单体并在0‑25℃条件下搅拌至少10h，再加入石墨烯并搅拌至均匀分散，得到含石墨烯的聚酰胺酸溶液；再用连续的160～300g/m2的碳纤维布浸润所述含石墨烯的聚酰胺酸溶液，然后在氮气的保护下进行固化，制得导热膜前驱体；最后将导热膜前驱体在氮气的保护下于800‑2000℃碳化、石墨化制得所述碳纤维增强的高强度、高导热复合膜。
Preparation method of carbon fiber reinforced high-strength and high-thermal-conductivity composite film
The invention belongs to the technical field of heat-conducting films, and particularly relates to a preparation method of a carbon fiber reinforced high-strength and high-thermal-conductivity composite film, which comprises the following steps: adding a dianhydride monomer into a solvent dissolved with a diamine monomer, stirring at 0-25 DEG C for at least 10 hours, adding graphene, and stirring until the graphene is uniformly dispersed to obtain a graphene-containing polyamide acid solution; infiltrating the graphene-containing polyamide acid solution by using continuous 160-300g/m < 2 > of carbon fiber cloth, and curing under the protection of nitrogen to prepare a heat-conducting film precursor; and finally, carbonizing and graphitizing the heat-conducting film precursor at 800-2000 DEG C under the protection of nitrogen to obtain the carbon fiber reinforced high-strength and high-heat-conducting composite film.
本发明属于导热膜技术领域，具体为一种碳纤维增强的高强度、高导热复合膜制备方法，包括向溶有二胺单体的溶剂中加入二酐单体并在0‑25℃条件下搅拌至少10h，再加入石墨烯并搅拌至均匀分散，得到含石墨烯的聚酰胺酸溶液；再用连续的160～300g/m2的碳纤维布浸润所述含石墨烯的聚酰胺酸溶液，然后在氮气的保护下进行固化，制得导热膜前驱体；最后将导热膜前驱体在氮气的保护下于800‑2000℃碳化、石墨化制得所述碳纤维增强的高强度、高导热复合膜。
Preparation method of carbon fiber reinforced high-strength and high-thermal-conductivity composite film
一种碳纤维增强的高强度、高导热复合膜制备方法
PAN BAOQING (author) / HAN DEBIN (author) / LI XIAONAN (author) / ZHU GUILONG (author)
2021-09-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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