分散性好的水性油墨炭黑原則應是粒徑大和高結構。水性油墨用炭黑越黑,其酸性值也較高,PH值約在2.5 ~ 4.5之間,吸附能力越強,普通的油墨用炭黑PH值(zhi)幾(ji)乎(hu)是(shi)中(zhong)性(xing)的(de),因(yin)此(ci)其(qi)吸(xi)附(fu)能(neng)力(li)不(bu)明(ming)顯(xian)。由(you)於(yu)吸(xi)附(fu)能(neng)力(li)對(dui)於(yu)水(shui)性(xing)油(you)墨(mo)的(de)幹(gan)燥(zao)性(xing)有(you)特(te)殊(shu)影(ying)響(xiang),常(chang)因(yin)吸(xi)附(fu)色(se)漆(qi)中(zhong)的(de)催(cui)幹(gan)劑(ji)而(er)使(shi)塗(tu)膜(mo)幹(gan)率(lv)減(jian)退(tui)。PH值為4以yi下xia時shi,酸suan性xing越yue大da,對dui催cui幹gan劑ji的de吸xi附fu能neng力li也ye越yue大da,則ze對dui抗kang幹gan性xing能neng影ying響xiang也ye就jiu越yue明ming顯xian。色se素su炭tan黑hei的de抗kang幹gan作zuo用yong,不bu是shi在zai製zhi漆qi後hou立li即ji表biao現xian出chu來lai,而er是shi在zai完wan全quan或huo部bu分fen地di對dui催cui幹gan劑ji吸xi附fu後hou(貯存期內),經過一段時間才反應出來。因此,在設計配方的時候,一定要考慮適當增加催幹劑用量。顏色與粒徑的大小、顆粒的表麵結構及其所吸附揮發物的成分、數量有一定的關係。 色素炭黑在熱固油墨中具有著色、fangziwaixianhedaodianxingdengxingneng。sesutanheishiyuanliaoyouzaijigaodewenduzhong,jingguoyanmikongzhiranshaoguochengerjinxingshengchande,shiyizhongchunheidefenmo。lizixidukedizhi5nm,yibanshuolai,lizibushigulicunzaide,ershiduogelizitongguotanjingcenghuxiangchuancha,xingchengjujiti。butongshengchangongyikededaolijingfanweijiguangdelizi,caiyongdengheishengchangongyi,dedaodesesutanheichanpinxiangduicucao,erqiheishengchangongyikededaojiaojingxidechanpin。
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