【摘要】 采用傅里叶变换红外光谱仪、气相色谱仪、气相色谱/质谱仪以及化学分析法,对六氟丙烯气体在高温下的热分解行为进行了研究。结果表明:六氟丙烯在600℃以下很稳定不分解,从700℃开始微弱分解,至850℃时已经分解完全。并于850℃在管内壁观察到黄色油状液体。分解产物中含有少量的HF和C₂F₆、C₄F₈、C₆F₁₂、C₇F₈等小分子,八氟化萘(C₁₀F₈)、1,2-二（三氟甲基）全氟茚满(C₁₁F₁₂)和全氟茚满(C₁₁F₁₄)等环状化合物。该结果表明六氟丙烯在高温下的热分解过程除发生简单的热分解外,还包括环化和聚合反应等过程。更多还原

【Abstract】 The high temperature decomposition characteristics of hexafluoropropylene were investigated by fourier transform infrared spectroscopy（FTIR）, gas chromatography（GC）, gas chromatography/mass spectroscopy（GC/MS） and chemical analysis techniques. The results show that hexafluoropropylene is very stable and not decomposable below 600 ℃.It starts to weakly decompose at 700 ℃, completely decompose at 850 ℃ and yellow oily liquid is observed in the inner wall of the tube at 850 ℃. Pyrolysis products contain trace amounts of small molecules(HF, C₂F₆, C₄F₈, C₆F₁₂, C₇F₈) and cyclocompounds(C₁₀F₈, C₁₁F₁₂, C₁₁F₁₄). The results indicate that the pyrolysis process of hexafluoropropylene includes not only a simple decomposition reaction, but also the cyclization and polymerization reactions.更多还原