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Preparation process of graphene oxide three-dimensional self-assembly plate
The invention relates to the technical field of graphene, in particular to a preparation process of a graphene oxide three-dimensional self-assembly plate. The preparation process comprises the following steps: (1) preparing a graphene oxide filter cake by adopting hummers; (2) adding deionized water until the solid content is 1%-5%, and adjusting the pH value to 3.0-4.0; (3) adding urea resin with a low polymerization degree to prepare graphene oxide composite slurry; (4) coating a base material with the graphene oxide composite slurry; (5) drying at the temperature of 50-70 DEG C; (6) laminating 5-7 pieces of graphene oxide films; (7) under the conditions that the vacuum degree is -60Kpa to -100Kpa and the temperature is 100 DEG C to 200 DEG C, pressurizing to 1-5 MPa, and standing for 0.5-1 hour; (8) under the argon condition, pressurizing to 5-10 MPa, heating to 800-1200 DEG C, and standing for 1-2 hours; and (9) in an argon state, raising the temperature to 2000-2500 DEG C, and standing for 2-3 hours to finish graphitization treatment so as to obtain a graphene plate. The preparation process is simple and easy to implement and high in practicability.
本发明涉及石墨烯技术领域，一种氧化石墨烯三维自组装板材的制备工艺，包括以下步骤：（1）采用hummers制备氧化石墨烯滤饼；（2）加入去离子水，使其固含量为1%‑5%，调整PH值至3.0‑4.0；（3）加入低聚合度的脲醛树脂，制成氧化石墨烯复合浆料；（4）将氧化石墨烯复合浆料涂覆在基材上；（5）在50‑70oC温度下干燥；（6）将氧化石墨烯薄膜5‑7张作叠压处理（7）在真空度为‑60Kpa至‑100Kpa、温度为100oC‑200oC的条件下，加压1‑5MPa，静置0.5‑1h；（8）在氩气条件下，加压5‑10MPa，升温至800oC‑1200oC，静置1‑2h；（9）在氩气状态，升温至2000‑2500 oC，静置2‑3h，完成石墨化处理，制得石墨烯板材；本发明简单易行，实用性高。
Preparation process of graphene oxide three-dimensional self-assembly plate
The invention relates to the technical field of graphene, in particular to a preparation process of a graphene oxide three-dimensional self-assembly plate. The preparation process comprises the following steps: (1) preparing a graphene oxide filter cake by adopting hummers; (2) adding deionized water until the solid content is 1%-5%, and adjusting the pH value to 3.0-4.0; (3) adding urea resin with a low polymerization degree to prepare graphene oxide composite slurry; (4) coating a base material with the graphene oxide composite slurry; (5) drying at the temperature of 50-70 DEG C; (6) laminating 5-7 pieces of graphene oxide films; (7) under the conditions that the vacuum degree is -60Kpa to -100Kpa and the temperature is 100 DEG C to 200 DEG C, pressurizing to 1-5 MPa, and standing for 0.5-1 hour; (8) under the argon condition, pressurizing to 5-10 MPa, heating to 800-1200 DEG C, and standing for 1-2 hours; and (9) in an argon state, raising the temperature to 2000-2500 DEG C, and standing for 2-3 hours to finish graphitization treatment so as to obtain a graphene plate. The preparation process is simple and easy to implement and high in practicability.
本发明涉及石墨烯技术领域，一种氧化石墨烯三维自组装板材的制备工艺，包括以下步骤：（1）采用hummers制备氧化石墨烯滤饼；（2）加入去离子水，使其固含量为1%‑5%，调整PH值至3.0‑4.0；（3）加入低聚合度的脲醛树脂，制成氧化石墨烯复合浆料；（4）将氧化石墨烯复合浆料涂覆在基材上；（5）在50‑70oC温度下干燥；（6）将氧化石墨烯薄膜5‑7张作叠压处理（7）在真空度为‑60Kpa至‑100Kpa、温度为100oC‑200oC的条件下，加压1‑5MPa，静置0.5‑1h；（8）在氩气条件下，加压5‑10MPa，升温至800oC‑1200oC，静置1‑2h；（9）在氩气状态，升温至2000‑2500 oC，静置2‑3h，完成石墨化处理，制得石墨烯板材；本发明简单易行，实用性高。
Preparation process of graphene oxide three-dimensional self-assembly plate
一种氧化石墨烯三维自组装板材的制备工艺
CAI JINMING (author) / LIANG HUIMING (author) / XIAO WENQIU (author)
2021-07-16
Patent
Electronic Resource
Chinese
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