炭黑分散度如何分散及注意事項

　　炭黑分散度的分散過程主要受特殊因素影響


，炭黑的原始粒徑


、結jie構gou和he表biao麵mian各ge種zhong組zu分fen對dui分fen散san性xing有you很hen大da影ying響xiang。一yi般ban來lai說shuo炭tan黑hei原yuan來lai顆ke粒li大da小xiao小xiao，結jie構gou低di，揮hui發fa率lv低di
，分fen散san困kun難nan，反fan之zhi相xiang對dui容rong易yi，炭tan黑hei分fen散san度du使shi用yong載zai體ti：基體、rongjiheshuzhidexingnengduitanheidefensan，tebieshitanheishuzhidexuanzeyouhendayingxiang，zaixiangtongdetiaojianxiafensanxiaoguochabiehenda
，name，xiamianyiqilejiexiatanheifensanduruhefensanjizhuyishixiangba！

       yingxiangchaodaotanheidaodianxingdeyinsu，tanheilidulilunshangshuo，tanheideliduyuexiao，danweitijidekelishuyueduo
，youzhuyutigaodaodianxing。zhezaixiangjiaoyongdaodianchanpinzhonghenzhengchang。danshiyongyudaodiansuliaochanpinshi，ruguotanheikelitaixiao，suliaosuhuahoujianqielixiao，fensanxingjiuhuixiajiang，tanheizuoweidaliangdexiaokuaicunzaiyujichucailiaozhong，jiangdiledaodiansuliaochanpindejixiexingneng
，shiquleshiyongjiazhi。yincizhiyoujiangtanheidekelidaxiaotiaozhengzaiyidingfanweinei，cainengshitanheizaisuliaozhonghenhaodifensan

，suliaodanweitijizhongdetanheikelishuliangdadazengjia，congertigaosuliaochanpindedaodianxing，tongshiyoubuhuisunhaihuojiangdichanpinyuanlaidejixiexingneng。　　

　　1.炭黑分散度：炭黑結構DBP值的大小表示炭黑聚合結構的高低，一般來說DBP值較高時，炭黑為鏈枝結構，導電性良好。各種重質油氣副產品炭黑的DBPzhidouhengao，dianzixianweijingfaxiantamenshikongkexingshideweiguanjiegou，shuomingqijiegoubushihengao。tadegaodaodianxingqujueyudanweizhiliang，kenengshitijigengdadejieguo
，huozheyinweijianqiepohuailebufenjiegou，chanshengledaliangdexinlizi。yaoxiangzaisuliaozhonghuodelianghaodedaodianxing，tanheikelidaxiaoda，jiegoubunengtaigao，tanheidejiegouzuochengxianxingjiegou。yifangmiankeyiyoudaotanheifensanzaisuliaozhong

，lingyifangmianyouzhuyuxingchengdaodianwangluo，lingyifangmiankeyiyongshaoliangtanheiqidaofangjingdianzuoyong。

　　2.炭黑分散度：炭黑粗糙度對炭黑的導電性需要一定的粗糙度，因此炭黑容易形成導電通道，因此炭黑的氮吸附表麵積和CTAB表麵積差別很大。

　　3.炭黑分散度：表(biao)麵(mian)揮(hui)發(fa)分(fen)炭(tan)黑(hei)表(biao)麵(mian)的(de)揮(hui)發(fa)分(fen)主(zhu)要(yao)由(you)部(bu)分(fen)有(you)機(ji)基(ji)團(tuan)和(he)未(wei)完(wan)全(quan)分(fen)解(jie)的(de)油(you)膜(mo)形(xing)成(cheng)，形(xing)成(cheng)絕(jue)緣(yuan)層(ceng)
，增(zeng)加(jia)炭(tan)黑(hei)粒(li)子(zi)之(zhi)間(jian)的(de)屏(ping)障(zhang)，嚴(yan)重(zhong)影(ying)響(xiang)導(dao)電(dian)性(xing)，因(yin)此(ci)應(ying)將(jiang)揮(hui)發(fa)分(fen)控(kong)製(zhi)在(zai)較(jiao)低(di)的(de)限(xian)度(du)內(nei)。

　　4.炭黑分散度：灰(hui)分(fen)和(he)水(shui)分(fen)炭(tan)黑(hei)的(de)灰(hui)分(fen)和(he)含(han)水(shui)量(liang)較(jiao)高(gao)，實(shi)際(ji)上(shang)降(jiang)低(di)了(le)炭(tan)黑(hei)的(de)含(han)量(liang)。對(dui)導(dao)電(dian)性(xing)也(ye)有(you)不(bu)利(li)影(ying)響(xiang)
，生(sheng)產(chan)時(shi)要(yao)注(zhu)意(yi)控(kong)製(zhi)炭(tan)黑(hei)的(de)灰(hui)分(fen)和(he)含(han)水(shui)量(liang)。相(xiang)反(fan)，Ketjen BlackEC和乙炔炭黑的碳含量均在99.8%左右，普通炭黑不到98%。水分含量一般要控製在2.5%以下。否則會產生大量泡沫，影響產品的力學性能。

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