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《Transactions of China Pulp and Paper》 2009-03
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Preparation of Disproportionated Rosin Amine-Lignin Composite Cationic Emulsifier and Its Physico-chemical Properties

LIU Zu-guang LIU Deng LI Mei-fan ZHU Hua-long(College of Chemistry and Ecological Engineering,Guangxi University for Nationalities,Nanning,Guangxi Zhuang Autonomous Region,530006)  
The disproportionated rosin amine-lignin composite cationic emulsifier was prepared from disproportionated rosin amine,diethylenetriamine,formaldehyde and lignin by Mannich reaction.The physico-chemical properties of the resultant product were measured and its structure was characterized by elemental analysis and IR spectroscopy.The experiment results showed that disproportionated rosin amine methyl and diethylenetriamine methyl were introduced onto lignin respectively by Mannich reation.The value of the minimum surface tension of disproportionated rosin amine-lignin composite cationic emulsifier was 26.6 mN/m,critical micelle concentration was 5 g/L and HLB was 12.Its emulsifying power(with HLB=12 mixed oil of turpentine and soya bean oil) and foaming power were improved too.
【Fund】: 广西青年科学基金(桂科青0542018);; 广西高校松香系列新产品开发人才小高地资助项目;; 广西林产化学品开发与应用重点实验室资助项目
【CateGory Index】: TQ423.92
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