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    • 10. 发明授权
    • Method for making a graphite film or sheet
    • 制造石墨膜或片材的方法
    • US4954193A
    • 1990-09-04
    • US236999
    • 1988-08-26
    • Mutsuaki MurakamiNaomi NishikiSusumu YoshimuraKazuhiro Watanabe
    • Mutsuaki MurakamiNaomi NishikiSusumu YoshimuraKazuhiro Watanabe
    • C04B35/524
    • C04B35/524
    • A method for making a graphite sheet or block with a desired thickness which comprises hot pressing at least two films of a polymer selected from a polyoxadiazole, an aromatic polyamide and an aromatic polyimide at a pressure not lower than 4 kg/cm.sup.2 at temperatures not lower than 2200.degree. C. Prior to the hot pressing, the at least two films may be thermally treated at temperatures of not lower than 2200.degree. C. and subsequently hot pressed at a pressure of not lower than 4 kg/cm.sup.2 at a temperature of not lower than 2000.degree. C. when the at least two films are made of the polyoxadiazole or aromatic polyamide or at a temperature of not lower than 1600.degree. C. when the at least two films are made of the aromatic polyimide.
    • 一种用于制造具有所需厚度的石墨片或块的方法,其包括在不低于4kg / cm 2的压力下热压至少两种选自聚恶二唑,芳族聚酰胺和芳族聚酰亚胺的聚合物的膜 超过2200℃。在热压之前,可以在不低于2200℃的温度下对至少两种膜进行热处理,然后在不低于4℃的温度下在不低于4kg / cm 2的压力下热压 当至少两个膜由聚二唑或芳族聚酰胺制成时,或者至少两个膜由芳族聚酰亚胺制成时,在不低于1600℃的温度下,低于2000℃。