Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Efficient heat dissipation graphite paper as well as preparation method and application thereof
The invention belongs to the field of graphite materials, and particularly discloses efficient heat dissipation graphite paper as well as a preparation method and application thereof. The invention discloses a high-temperature-resistant heat-conducting lubricating grease which is prepared from the following raw materials in parts by weight: 100 parts of modified graphite powder, 10-20 parts of carbon black, 5-10 parts of talcum powder, 5-10 parts of carboxymethyl cellulose, 3-8 parts of a binder, 2-4 parts of a nano-metal heat-conducting material and 2-3 parts of an anti-wear agent, and the modified graphite powder is treated by the following modification steps: 1) crushing crystalline flake graphite, and sieving with a 200-500-mesh sieve to obtain crystalline flake graphite powder; 2) adding multilayer graphene accounting for 2-4% of the final mass fraction, molybdenum disulfide accounting for 1-2% of the final mass fraction, silicon nitride accounting for 0.5-1% of the final mass fraction and potassium dichromate accounting for 0.2-0.4% of the final mass fraction into the crystalline flake graphite powder, uniformly mixing to obtain powder A, and putting the powder A into an organic solvent for ultrasonic treatment; (3) filtering the mixed solution subjected to ultrasonic treatment, collecting solids, and carrying out vacuum drying at 300-400 DEG C until the water content is lower than 5%, so as to obtain modified graphite powder; the graphite paper is good in mechanical property and high in heat conduction capacity, and the preparation process is safe, simple and free of pollution.
本发明属于石墨材料领域，具体公开了一种高效散热的石墨纸及其制备方法和应用。由以下重量份数的原料制成：改性石墨粉100份、炭黑10‑20份、滑石粉5‑10份、羧甲基纤维素5‑10份、粘结剂3‑8份、纳米金属导热材料2‑4份、抗磨剂2‑3份、所述改性石墨粉经过以下改性步骤处理：1)将鳞片石墨粉碎后过200‑500目筛，得鳞片石墨粉；2)将上述鳞片石墨粉中添加占最终质量分数2‑4％的多层石墨烯、1‑2％的二硫化钼，0.5‑1％的氮化硅、0.2‑0.4％重铬酸钾混合均匀为粉剂A，放入有机溶剂中进行超声处理；3)将超声处理后混合溶液过滤，收集固形物，300‑400℃真空干燥至含水率低于5％，得到改性石墨粉；本发明所述的石墨纸机械性能好，导热能力强，制备过程安全简单无污染。
Efficient heat dissipation graphite paper as well as preparation method and application thereof
The invention belongs to the field of graphite materials, and particularly discloses efficient heat dissipation graphite paper as well as a preparation method and application thereof. The invention discloses a high-temperature-resistant heat-conducting lubricating grease which is prepared from the following raw materials in parts by weight: 100 parts of modified graphite powder, 10-20 parts of carbon black, 5-10 parts of talcum powder, 5-10 parts of carboxymethyl cellulose, 3-8 parts of a binder, 2-4 parts of a nano-metal heat-conducting material and 2-3 parts of an anti-wear agent, and the modified graphite powder is treated by the following modification steps: 1) crushing crystalline flake graphite, and sieving with a 200-500-mesh sieve to obtain crystalline flake graphite powder; 2) adding multilayer graphene accounting for 2-4% of the final mass fraction, molybdenum disulfide accounting for 1-2% of the final mass fraction, silicon nitride accounting for 0.5-1% of the final mass fraction and potassium dichromate accounting for 0.2-0.4% of the final mass fraction into the crystalline flake graphite powder, uniformly mixing to obtain powder A, and putting the powder A into an organic solvent for ultrasonic treatment; (3) filtering the mixed solution subjected to ultrasonic treatment, collecting solids, and carrying out vacuum drying at 300-400 DEG C until the water content is lower than 5%, so as to obtain modified graphite powder; the graphite paper is good in mechanical property and high in heat conduction capacity, and the preparation process is safe, simple and free of pollution.
本发明属于石墨材料领域，具体公开了一种高效散热的石墨纸及其制备方法和应用。由以下重量份数的原料制成：改性石墨粉100份、炭黑10‑20份、滑石粉5‑10份、羧甲基纤维素5‑10份、粘结剂3‑8份、纳米金属导热材料2‑4份、抗磨剂2‑3份、所述改性石墨粉经过以下改性步骤处理：1)将鳞片石墨粉碎后过200‑500目筛，得鳞片石墨粉；2)将上述鳞片石墨粉中添加占最终质量分数2‑4％的多层石墨烯、1‑2％的二硫化钼，0.5‑1％的氮化硅、0.2‑0.4％重铬酸钾混合均匀为粉剂A，放入有机溶剂中进行超声处理；3)将超声处理后混合溶液过滤，收集固形物，300‑400℃真空干燥至含水率低于5％，得到改性石墨粉；本发明所述的石墨纸机械性能好，导热能力强，制备过程安全简单无污染。
Efficient heat dissipation graphite paper as well as preparation method and application thereof
一种高效散热的石墨纸及其制备方法和应用
JIANG YUNKANG (Autor:in) / ZHAO WENCHAO (Autor:in) / LIU XIANBO (Autor:in)
31.05.2024
Patent
Elektronische Ressource
Chinesisch
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