中国造纸2009，Vol.28Issue(7)：31-34,4.
磷酸酯型两性瓜尔胶的合成及增强性能研究
Synthesis of Amphoteric Guar Gum Derivative Containing Phosphate Group and Its Strengthening Effect
摘要
Abstract
The amphoteric guar gum derivative containing phosphate and quaternary-amine groups was synthesized in isopropanol solvent. An- ionic phosphate was introduced at first through the homemade anionic intennedium reagent and then cationic groups were grafted at the pres- ence of cationic etherifying agent. The anionic intermedium reagent and guar gum derivative were characterized by1H-NMR. The effects of re- action temperature, anionic/cationic reagent doses and NaOH dose on P/N conent of the purified product were investigated. The optimal conditions were obtained as follows: reaction temperature 60℃, 5% dose of NaOH (on guar gum content)at etberification process, 15%/ 28% doses of anionic/cationic reagent. Meanwhile the P/N contents in the guar gum derivative reach 0.44% and 0.8%. When the product is used in ONP system, it exhibits better ability in increasing handsheets' strength properties in comparison with amphoteric starch which has been using in the industry. This guar gum derivative can increase the surface strength by 24.5% (compared with the control sample)at the dosage of 0.2%.关键词
瓜尔胶/磷含量/氮含量/增强剂Key words
guar gum/phosphate content/amphoteric/strengthening agent分类
轻工纺织引用本文复制引用
万小芳,李友明,陈金中,林胜任..磷酸酯型两性瓜尔胶的合成及增强性能研究[J].中国造纸,2009,28(7):31-34,4.基金项目
本课题为教育部"长江学者和创新团队发展计划"项目(IRT0552). （IRT0552）
