陕西科技大学学报（自然科学版）
陝西科技大學學報（自然科學版）
협서과기대학학보（자연과학판）
Journal of Shaanxi University of Science and Technology (Natural Science Edition)
2015年
6期
1-5
,共5页
阴离子有机微粒%半干法%改性膨润土%助留助滤剂
陰離子有機微粒%半榦法%改性膨潤土%助留助濾劑
음리자유궤미립%반간법%개성팽윤토%조류조려제
anionic micropolymer%semi-dry%modified bentonite%retention and drainage aid
采用半干法用阴离子有机微粒制备出了改性有机复合膨润土，考察了其最佳制备工艺，并研究了改性膨润土在造纸湿部中的助留助滤性能．结果表明，蒙脱石含量低的钙基膨润土经阴离子有机微粒改性后，其膨胀倍数比碳酸钠改性膨润土提高了21．43％，电荷密度提高了90％；当阴离子有机微粒用量为钙基膨润土的1％、研磨时间为40 min时，其助留助滤效果最好，优于国外汽巴精化公司生产的膨润土，且钙基膨润土的研磨浓度高达50％．
採用半榦法用陰離子有機微粒製備齣瞭改性有機複閤膨潤土，攷察瞭其最佳製備工藝，併研究瞭改性膨潤土在造紙濕部中的助留助濾性能．結果錶明，矇脫石含量低的鈣基膨潤土經陰離子有機微粒改性後，其膨脹倍數比碳痠鈉改性膨潤土提高瞭21．43％，電荷密度提高瞭90％；噹陰離子有機微粒用量為鈣基膨潤土的1％、研磨時間為40 min時，其助留助濾效果最好，優于國外汽巴精化公司生產的膨潤土，且鈣基膨潤土的研磨濃度高達50％．
채용반간법용음리자유궤미립제비출료개성유궤복합팽윤토，고찰료기최가제비공예，병연구료개성팽윤토재조지습부중적조류조려성능．결과표명，몽탈석함량저적개기팽윤토경음리자유궤미립개성후，기팽창배수비탄산납개성팽윤토제고료21．43％，전하밀도제고료90％；당음리자유궤미립용량위개기팽윤토적1％、연마시간위40 min시，기조류조려효과최호，우우국외기파정화공사생산적팽윤토，차개기팽윤토적연마농도고체50％．
A new type of organobentonite was prepared by adding an anionic micropolymer to Ca‐bentonite powder with the semi‐dry way .The best preparation condition and its applica‐tion on the papermaking process were studied .The results show that compared to Na‐ben‐tonite modified with sodium carbonate ,the expansion ratio and charge density of Ca‐benton‐ite w hich has a poor content of montmorillonite increase separately 21 .43% and 90% after modified with anionic micropolymer .When grinding time is 40 min and the addition of anion‐ic micropolymer is 1% by weight of Ca‐bentonite ,the organobentonite performs a best reten‐tion and drainage properties which is superior to common bentonite produced by Ciba Spe‐cialty Chemicals .In addition ,grinding content of organobentonite could reach to 50% .
