中性脱墨剂起泡性与脱墨效果间关系的研究  

Study on Relationship between Foamability and Deinking Effect of Neutral Deinking Agents

作　　者：杨洋[1] 曹云峰[1] 刘祝兰[1] 卢海锋[1] 王艳丽[1] 韦黎[1] 

机构地区：[1]南京林业大学江苏省制浆造纸重点实验室,江苏南京210037

出　　处：《林产化学与工业》2010年第5期51-56,共6页Chemistry and Industry of Forest Products

基　　金：江苏省制浆造纸科学与技术重点实验室开放基金(200916);"江苏省青蓝工程中青年学术带头人培养对象"省教育厅资助课题(164105308)

摘　　要：在中性条件下对混合办公废纸(MOW)进行脱墨,研究了脱墨效果和脱墨剂起泡性之间的关系。结果表明,在单一组分脱墨剂中,阴离子表面活性剂起泡性越强脱墨效果越差,起泡性最好的AEC-7-Na脱墨浆白度仅为80.51%(ISO),泡沫越稳定脱墨效果越好,泡沫稳定性最强的ABS脱墨浆白度达到83.04%(ISO)。非离子表面活性剂的脱墨效果与起泡性强弱无明显关系,泡沫的稳定性对脱墨效果没有影响。在非/阴离子表面活性剂复配实验中证明,其脱墨效果与脱墨剂泡沫之间的关系不确定,非离子表面活性剂的搜集能力和两种活性剂的复配性是决定脱墨效果的主要因素。得到了几组脱墨效果较为理想的中性脱墨组合(质量比均为1∶1):T-80+SAS、AEO20+AES、AEO12+AEC-7-Na、S-80+AES。Mixed office waste paper（MOW） were deinked under neutral condition to investigate the relationship between deinking effect and foamability of deinking agents.The result showed that,among single-component deinking agents,the deinking effect becomes worse with the increased foamability of anionic surfactants and the effect becomes better with the increased foam stability of surfactant.Brightness of deinked pulp treated by the best foamability surfactant AEC-7-Na is only 80.51%（ISO）,while brightness of that treated by the best foam stability surfactant ABS is 83.04%（ISO）.For nonionic surfactants,there is no obvious relationship between deinking effect and foamability,also foam stability has no effect on deinking effect.It is proofed in the experiment of blended nonionic and anionic surfactants,that the relationship between deinking effect and foamability is uncertain.The main factors which decide the deinking effect are the collecting ability of nonionic surfactants and the blendability of two kinds of surfactants.In this experiment,several blended groups of neutral deinking combination with outstanding deinking effect,such as（the mass ratio 1∶1）： T-80＋SAS,AEO20＋AES,AEO12＋AEC-7-Na,S-80＋AES,have been obtained.

关 键 词：中性脱墨剂 混合办公废纸 起泡性 脱墨效果 表面活性剂 

分 类 号：TQ351.0[化学工程] TS749.7[轻工技术与工程—制浆造纸工程]