废纸脱墨浆DCS物化性质及其累积规律初探  

Study on the Physicochemical Characteristics of DCS and Its Accumulation in the Deinked Pulp

作　　者：陈启杰[1] 陈夫山[1] 胡惠仁[1] 

机构地区：[1]天津科技大学天津市制浆造纸重点实验室

出　　处：《中国造纸学报》2008年第1期14-17,共4页Transactions of China Pulp and Paper

基　　金：国家自然科学基金(项目编号:20576102)资助项目

摘　　要：探讨了废纸脱墨浆中溶解和胶体物质（DCS）的物化性质及其累积规律，研究表明，废纸脱墨浆DCS含量、电导率、阳离子需求量主要由溶解物（DS）贡献，而浊度、Zeta电位主要由胶体物质（CS）引起；DCS粒径主要分布在2个区域：100-200nm和550-900nm，其中100-200nm粒径的物质累积速度较快；随着累积次数的增加，DCS中Na^2＋、Ca^2＋、Mg^2＋、Al^3＋累积速度快于Fe^2＋。The physicochemical characteristics of dissolved and colloidal substances （DCS） and its accumulation regular pattern in the deinked pulp were investigated. The results showed that the DCS content, conductivity and cationic demand of the deinked pulp are mainly contributied by the dissolved substance （DS）. On the other hand, the turbidity and Zeta potential are attributed to the colloidal substance （ CS）, the particle diameter of DCS mainly distributes from 100 nm to 200 nm and from 550 nm to 900 run, the accumulating speed of the particles with diameter from 100 nm to 200 nm is rapider than the particles with diameter from 550 nm to 900 nm, the accumulating speed of Na^＋, Ca^2＋ , Mg^2＋ ,Al^3＋ is rapider than Fe^2＋ along with increasing the accumulating times.

关 键 词：废纸脱墨浆 DCS 物化性质 累积规律 

分 类 号：TS749.7[轻工技术与工程—制浆造纸工程]