一、什么是高純石墨
石(shi)(shi)(shi)墨(mo)(mo)的(de)固定碳(tan)含量(liang)不(bu)同(tong),特性和用途(tu)也有所不(bu)同(tong),高(gao)(gao)純(chun)石(shi)(shi)(shi)墨(mo)(mo)是(shi)指(zhi)碳(tan)含量(liang)較高(gao)(gao)的(de)石(shi)(shi)(shi)墨(mo)(mo),一般含碳(tan)量(liang)>99.99%的(de)石(shi)(shi)(shi)墨(mo)(mo)稱之為(wei)高(gao)(gao)純(chun)石(shi)(shi)(shi)墨(mo)(mo)。高(gao)(gao)純(chun)石(shi)(shi)(shi)墨(mo)(mo)有兩種(zhong),一種(zhong)是(shi)天然的(de)高(gao)(gao)純(chun)石(shi)(shi)(shi)墨(mo)(mo),另一種(zhong)是(shi)人工(gong)合成的(de)高(gao)(gao)純(chun)石(shi)(shi)(shi)墨(mo)(mo)(又稱高(gao)(gao)導熱納米鱗片狀碳(tan)粉)。
二、高純石墨的特點及應用
高(gao)(gao)(gao)(gao)純(chun)(chun)石(shi)墨(mo)具有高(gao)(gao)(gao)(gao)強(qiang)度、高(gao)(gao)(gao)(gao)密度、高(gao)(gao)(gao)(gao)純(chun)(chun)度、化學穩定性(xing)高(gao)(gao)(gao)(gao)、結構致密均(jun)勻、耐高(gao)(gao)(gao)(gao)溫、導(dao)電率高(gao)(gao)(gao)(gao)、耐磨性(xing)好(hao)、自潤(run)滑(hua)、易加工(gong)等特(te)點(dian),廣泛(fan)應用(yong)(yong)于冶金、化工(gong)、航(hang)天(tian)、電子、機械(xie)、核能等工(gong)業(ye)領域。尤其是大(da)規格高(gao)(gao)(gao)(gao)質量的(de)(de)高(gao)(gao)(gao)(gao)純(chun)(chun)石(shi)墨(mo), 作為替代(dai)性(xing)材料, 在高(gao)(gao)(gao)(gao)科技、新技術領域有著(zhu)寬(kuan)廣的(de)(de)應用(yong)(yong)空間,具有廣泛(fan)的(de)(de)應用(yong)(yong)前景。
在工(gong)(gong)(gong)(gong)業(ye)(ye)領域中,高(gao)純石(shi)(shi)墨(mo)廣泛(fan)用于冶金(jin)工(gong)(gong)(gong)(gong)業(ye)(ye)的(de)高(gao)級耐火材料(liao)(liao)(liao)與涂料(liao)(liao)(liao)、軍事(shi)工(gong)(gong)(gong)(gong)業(ye)(ye)火工(gong)(gong)(gong)(gong)材料(liao)(liao)(liao)安定劑(ji)(ji)(ji)、輕工(gong)(gong)(gong)(gong)業(ye)(ye)的(de)鉛筆(bi)芯、電(dian)氣工(gong)(gong)(gong)(gong)業(ye)(ye)的(de)碳刷(shua)、電(dian)池工(gong)(gong)(gong)(gong)業(ye)(ye)的(de)電(dian)極、化(hua)肥工(gong)(gong)(gong)(gong)業(ye)(ye)催化(hua)劑(ji)(ji)(ji)添加(jia)劑(ji)(ji)(ji)等。高(gao)純石(shi)(shi)墨(mo)經過(guo)深加(jia)工(gong)(gong)(gong)(gong),又(you)可生產出石(shi)(shi)墨(mo)乳、石(shi)(shi)墨(mo)密封材料(liao)(liao)(liao)與復合材料(liao)(liao)(liao)、石(shi)(shi)墨(mo)制品、石(shi)(shi)墨(mo)減磨(mo)添加(jia)劑(ji)(ji)(ji)等高(gao)科技(ji)產品,是各個工(gong)(gong)(gong)(gong)業(ye)(ye)部(bu)門重(zhong)要的(de)非金(jin)屬礦(kuang)物原料(liao)(liao)(liao)。
三、高純石墨密度是多少
高純石墨的密度(du)是(shi)它的一(yi)個(ge)重要參數,一(yi)般(ban)根據生產工藝(yi)不(bu)同有所不(bu)同。
高(gao)純石(shi)(shi)(shi)墨(mo)(mo)生產(chan)工藝可以分為(wei)一浸(jin)(jin)一焙石(shi)(shi)(shi)墨(mo)(mo)、二(er)浸(jin)(jin)三(san)(san)焙石(shi)(shi)(shi)墨(mo)(mo)、三(san)(san)浸(jin)(jin)四(si)(si)焙石(shi)(shi)(shi)墨(mo)(mo)、四(si)(si)浸(jin)(jin)五焙石(shi)(shi)(shi)墨(mo)(mo)等(deng),一般常用的(de)是二(er)浸(jin)(jin)三(san)(san)焙和三(san)(san)浸(jin)(jin)四(si)(si)焙,其中二(er)浸(jin)(jin)三(san)(san)焙的(de)高(gao)純石(shi)(shi)(shi)墨(mo)(mo)密度(du)在1.7多,三(san)(san)浸(jin)(jin)四(si)(si)焙石(shi)(shi)(shi)墨(mo)(mo)密度(du)在1.8以上(單位:g/cm3)。