高取代度阳离子淀粉的制备及其乳化AKD性能研究

Synthesis and Application of High Substituted Cationic Starch in Emulsifying AKD

DOI：

中文关键词: 阳离子淀粉 乳化 烷基烯酮二聚体(AKD) 施胶性能

英文关键词: cationic starch emulsify alkyl ketene dimers sizing performance

基金项目:国家“十一五”科技支撑项目(2006BAD32B05)

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中文摘要:

传统烷基烯酮使用阳离子淀粉作为乳化剂和稳定剂,存在纤维上留着低、与纤维反应较慢和施胶熟化时间长等缺点。作者研究了高取代度阳离子木薯淀粉的制备工艺、AKD乳液的乳化工艺和施胶性能。结果表明,以木薯淀粉为原料和3-氯-2-羟丙基三甲基氯化铵为醚化剂制备的淀粉阳电荷密度为0.5~3.5 meq/g,取代度大于0.1的阳离子淀粉,对AKD蜡粉具有良好乳化稳定作用和纸张施胶性能。

英文摘要:

In this manuscript,a high substituted cationic starch was synthesized and then applied on the emulsification.The best performances of emulsification and sizing in papermaking were achieved at conditions:the cationic starch density of positive charge was 0.5~3.5 meqv/g,substitution was more than 0.1,viscosity was less than 1 000 mPa·s.

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