Application of Cationic Starch with High Degree of Substitution in Packaging Paper from High Yield Pulp
In this paper the cationic starch with high degree of substitution (HCS) is prepared with NaOH asalkali catalyst and 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CTA) as cationic reagent by usingthe semi-dry process. Then the prepared cationic starch with high degree of substitution is used to improve theproperties of packaging paper from high yield pulp. The results show that the degree of substitution of cationicstarch increases firstly and then decreases after reaching the peak value with the increase of alkali catalystcontent, cationic reagent, reaction temperature, reaction time and water content in the reaction system. Theproper preparation condition of HCS: water content is 30%, CTA/AGU is 1.0 (the mol ratio of CTA to unitglucose), NaOH/CTA is 1.2 (the mol ratio of NaOH to CTA), the reaction temperature is 65℃, the reaction timeis 4h. Cationic starch with different degrees of substitution can increase retention and strength properties ofpaper. HCS can improve basis weight and strength properties of paper. When the cationic starch with degree ofsubstitution 0.64 is used and its dosage is 0.6%~ 0.8%, the increase effect of strength properties of paper is thebest.
Quanxiao Liu Jinli Li Wencai Xu
Beijing Key Laboratory of Printing & Packaging Materials and Technology, Beijing Institute of Graphic Communication Beijing, 102600, China
国际会议
The 17th IAPRI World Conference on Packaging(第17届世界包装大会)
天津
英文
35-38
2010-10-12（万方平台首次上网日期，不代表论文的发表时间）