【正文快照】： 阴离子杂质 ( anionic trash)又称作阳离子需求 ( cationic demand) ,是造纸配料中所有溶解的阴离子低聚物或多聚物及非离子型水解胶体物质的总称。
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PEI with high cationic charge density could neutralize the anionic trash in DCS and improve the efficiency of CPAM.
高电荷密度的聚乙烯亚胺的加入能够中和DCS中的阴离子垃圾，提高阳离子聚丙烯酰胺的助留效果。
The application of modified PEI as an anionic trash catcher in light weight offset papermaking system was introduced.
介绍了改性聚乙烯亚胺作为定着剂在抄造轻型胶版纸中的应用。
The accumulation of the anionic trash in paper stock causes a lot of problems to the wire operation and the properties of the sheet, particularly the paper sizing performance.
阴离子垃圾的积累给纸机网部抄造及纸的性质带来很多影响，尤其是纸张施胶效果。
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