摘要
通过接枝共聚反应在纤维素分子上引入强配位性功能基,可以实现对水中Ca2+、Mg2+等金属离子的络合吸附,达到循环冷却水系统防垢的目的。本文主要研究以硝酸铈铵为引发剂,以马来酸酐为单体,对针叶木纤维进行接枝共聚改性的反应规律,探讨了反应温度、反应时间、单体用量、引发剂用量等因素对纤维素接枝率的影响,确定了最佳的改性工艺条件。并对改性产物的吸附性进行了研究。
This investigation obtained the modified cellulose fiber product based on softwood pulp through the graft copolymerization method introducing a strong coordination functional group, aiming at complexation and adsorption of metal ions such as Ca^2＋, Mg^2＋ in the water. In this paper, reaction rules of the graft copolymerization modification on softwood cellulose fibers used ammonium ceric nitrate as the evocating agent and maleic anhydride as the monomers respectively were investigated. The factors on cellulose grafting rate such as reaction temperature, reaction time, monomers dosage, evocating agent dosage etc. were discussed. The optimum process conditions were determined finally, and the adsorbability to Ca^2＋, Mg^2＋ of modified fiber was tested.
出处
《纸和造纸》
北大核心
2011年第6期24-26,共3页
Paper and Paper Making
基金
陕西科技大学自选项目资助
项目编号ZX08-01
关键词
针叶木纤维
马来酸酐
接枝共聚
吸附性
softwood cellulose
maleic anhydride
graft copolymerization
adsorbability
