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Preparation method of high-conductivity graphene film
A preparation method of a high-conductivity graphene film comprises the steps: S1, preparation of slurry: preparing the slurry from the components in percentage by weight: 3-10% of graphite oxide, 0.02-1% of a dispersing agent, 0.02-1% of a defoaming agent, 0.02-1% of a reducing agent, 1-10% of carbon fiber powder and the balance being water; S2, coating: scraping the slurry on a bottom film by using a scraper to form a wet film, and then drying; and forming a dry film after baking; S3, heat treatment: heating by a drying oven, and raising the temperature to 300 DEG C from 100 DEG C; raising the temperature to 1000 DEG C from 300 DEG C in a nitrogen or vacuum environment; raising the temperature to 3000 DEG C from 1000 DEG C in an argon environment; and making the thickness of a baked film be 1-100 microns; and S4, rolling: carrying out rolling and rolling-up on the film by using a compression roller to obtain the graphene film with the thickness of 1-10 microns. According to the preparation method, the formula, coating, sintering and calendering procedures are improved, and the continuous large-size graphene heat-conducting film coil stock can be prepared.
本发明高导石墨烯膜的制备方法，S1、浆料的制备：浆料的配方重量百分比：氧化石墨3‑10％、分散剂0.02‑1％、消泡剂0.02‑1％、还原剂0.02‑1％、碳纤维粉1‑10％，余量为水；S2、涂覆：利用刮刀将浆料刮涂到底膜上，形成湿膜，然后进行烘干；烘烤后形成干膜；S3、热处理：利用烘箱升温，100℃升温到300℃；再在氮气或真空的环境中，300℃升温到1000℃；再在氩气的环境中，1000℃升温到3000℃；烘烤后膜的厚度为1‑100微米；S4、辊压：利用压辊对膜进行辊压收卷，得到厚度为1‑10微米的石墨烯膜。本发明对配方、涂布、烧结和压延工序改进，能够制备出连续的大尺寸石墨烯导热膜卷料。
Preparation method of high-conductivity graphene film
A preparation method of a high-conductivity graphene film comprises the steps: S1, preparation of slurry: preparing the slurry from the components in percentage by weight: 3-10% of graphite oxide, 0.02-1% of a dispersing agent, 0.02-1% of a defoaming agent, 0.02-1% of a reducing agent, 1-10% of carbon fiber powder and the balance being water; S2, coating: scraping the slurry on a bottom film by using a scraper to form a wet film, and then drying; and forming a dry film after baking; S3, heat treatment: heating by a drying oven, and raising the temperature to 300 DEG C from 100 DEG C; raising the temperature to 1000 DEG C from 300 DEG C in a nitrogen or vacuum environment; raising the temperature to 3000 DEG C from 1000 DEG C in an argon environment; and making the thickness of a baked film be 1-100 microns; and S4, rolling: carrying out rolling and rolling-up on the film by using a compression roller to obtain the graphene film with the thickness of 1-10 microns. According to the preparation method, the formula, coating, sintering and calendering procedures are improved, and the continuous large-size graphene heat-conducting film coil stock can be prepared.
本发明高导石墨烯膜的制备方法，S1、浆料的制备：浆料的配方重量百分比：氧化石墨3‑10％、分散剂0.02‑1％、消泡剂0.02‑1％、还原剂0.02‑1％、碳纤维粉1‑10％，余量为水；S2、涂覆：利用刮刀将浆料刮涂到底膜上，形成湿膜，然后进行烘干；烘烤后形成干膜；S3、热处理：利用烘箱升温，100℃升温到300℃；再在氮气或真空的环境中，300℃升温到1000℃；再在氩气的环境中，1000℃升温到3000℃；烘烤后膜的厚度为1‑100微米；S4、辊压：利用压辊对膜进行辊压收卷，得到厚度为1‑10微米的石墨烯膜。本发明对配方、涂布、烧结和压延工序改进，能够制备出连续的大尺寸石墨烯导热膜卷料。
Preparation method of high-conductivity graphene film
一种高导石墨烯膜的制备方法
LIN JIANFENG (Autor:in) / FENG WEIMING (Autor:in) / JIN MIN (Autor:in)
24.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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