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采用SX2 5 1 2型箱式电炉 ,按不同炭化最高温度烧制竹炭。通过电子显微镜、X 衍射仪、红外光谱等分析仪器 ,对竹炭导电机理进行研究。结果表明 :炭化最高温度对竹炭的导电性影响显著 ,随着炭化最高温度升高 ,其电阻率减少 ,且在炭化最高温度 60 0～ 80 0℃时电阻率显著降低 ;不同炭化最高温度的竹炭维管束收缩不一 ,纤维排列结构发生变化 ;竹炭在炭化最高温度 90 0℃以下 ,未出现石墨化结构特征峰 ,竹炭导电主要是离子引起的 ,而在 80 0℃时出现了碳碳双键与苯环共轭的强吸收峰 ,导电性增强 ,在温度达 1 1 0 0℃以上有形成石墨化结构趋势
Using SX2 5 1 2-type box-type electric furnace, according to the highest temperature of different charring bamboo charcoal. Through the electron microscope, X-ray diffraction, infrared spectroscopy and other analytical instruments, conductive mechanism of bamboo charcoal research. The results show that the maximum carbonization temperature has a significant effect on the conductivity of bamboo charcoal. With the increase of maximum carbonization temperature, the electrical resistivity decreases, and the resistivity decreases significantly at the maximum carbonization temperature of 60 0 ~ 80 0 ℃. Vascular bundles were contracted differently and their fiber arrangement changed. At the maximum carbonization temperature of 90 0 ℃, bamboo charcoal did not show the characteristic peaks of graphitization structure. The conductivity of bamboo charcoal was mainly ion-induced, while the carbon-carbon double bond appeared at 80 0 ℃ The strong absorption peak conjugated with the benzene ring, conductivity increased, at a temperature of 1 1 0 0 ℃ above the tendency to form a graphitized structure