【摘要】 利用激光拉曼光谱(RMS)分析了不同类型的国产碳毡经石墨化处理前后的一级拉曼光谱特性,并与进口碳毡进行了对比分析。结果表明:国产黏胶基碳毡的拉曼峰相对尖锐,ID/IG比值较低,各肩峰的相对积分面积比值IA/IG、ID″/IG较小;经过1600℃高温处理后国产碳毡的拉曼峰明显分开,其中国产黏胶基碳毡的拉曼峰在处理前后变化不明显,ID/IG比值以及各肩峰的相对积分面积比值IA/IG、ID″/IG均无明显降低;经高温处理的国产黏胶基碳毡的拉曼峰与进口碳毡较为一致,IA/IG比值与进口碳毡接近,而且ID/IG比值比进口碳毡低,适当热处理可以使得国产黏胶基碳毡接近进口碳毡的石墨微晶结构。更多还原

【Abstract】 The first-order Raman spectrum characteristics of the different type domestic carbon felts before and after graphitization treatment were analyzed by laser Raman spectroscopy and compared with the imported carbon felts.The results show that Raman peaks shape of the domestic viscose based carbon felts is relatively sharp,the value of ID/IG is relatively low,the values of additive bands’ area ratios of IA/IG、ID″/IG are relatively small;the Raman peaks shape of the domestic carbon felts is obviously separated after graphitization treatment at 1600 ℃,but the change of Raman peaks shape of the domestic viscose based carbon felts is not obvious,and the value of ID/IG and the ratios of additive bands’ area IA/IG、ID″/IG are not obviously reduced;the Raman peaks shape of the domestic viscose based carbon felts is consistent with that of the imported carbon felts after graphitization treatment,the value of IA/IG is similar to that of the imported carbon felts,and the value of ID/IG is lower than that of the imported carbon felts,graphite crystallite structure of the domestic viscose based carbon felts similar to that of the imported carbon felts can be obtained by suitable heat treatment process.更多还原