【摘要】 在450℃，0.5MPa的N2中，固态聚四氟乙烯与石墨（粒度＜40μm，合碳＞99．7％）合成反应制得灰白色氟化石墨．其真密度为250Mg·m－3，电阻率为2．85kΩ·cm．在波数1219cm－1和1350cm－1处有F—C共价键红外光谱吸收峰．这些特征与“气相法”合成的氟化石墨一致．“固相法”新工艺方法简单、安全、成本低，无需剧毒单质氟气作为主要原料．更多还原

【Abstract】 Under nitrogen atmospheric pressure 0.5MPa. the graphite fluoride was prepared through the synthesis reaction between the graphite powder (grain <40μm, carbon content>99.7%)and the polytetrafluoroethylene at 450℃. The real density of the graphite fluoride was 2.50 Mg.m-1,its electrical resistivity 2.85kΩ.cm and its colour greyish white. The graphite fluoride synthesized had a absorb peak value of the infrared reflection spectra on F-C covalent bond at wavenumber 1219cm-1and 1350cm-1. The test results showed that the characteristics of the graphite fluoride in solid-phase process preparation consisted with those in gas-phase. The new technology had many advantages, such as simplicity, safety, lower-cost and no a strong poisonous fluorine gas as the main raw material.更多还原