摘要
本文以淀粉和阔叶木浆为原料,采用研磨法制备淀粉-纤维基复合防油剂,研究了不同研磨条件对复合防油剂粒度、黏度及微观形态的影响,分析了将其应用于防油食品包装纸板上的防油效果。结果表明:当纤维添加比例为5%,研磨4 h制备得到的复合防油剂在粒度、黏度、微观形态上都比较适合涂布,且涂布后能够获得最佳的防油效果。在此条件下制备的复合防油剂中位粒径(D_(50))达到300 nm左右,黏度为370 mPa∙s,涂布后纸板的透气度降至0.000 8μm/(Pa∙s),防油等级可以达到8级。
In this paper,starch and hardwood chemical pulp were used as raw materials to prepare starch‐fiber based composite oil repellents by grinding.The particle sizes,viscosities and microstructures of the composite oil repellents obtained by grinding under different conditions were investigated,and the oil‐proof performance of paperboards coated with the repellents was evaluated.The results showed that when the fiber addition proportion was 5%,the composite oil repellents after grinding for 4 hours were more suitable for coating in terms of particle size,viscosity and microstructure,and could achieve a better oil repellent effect after coating.For the composite oil repellents prepared under this condition,the median particle size(D_(50))could reach approximately 300 nm with a viscosity of 370 mPa∙s;meanwhile,the air permeability of the paperboards coated with this composite oil repellents decreased to 0.0008μm/(Pa∙s),and the oil resistance grade could reach level 8.
作者
文辉
张瑞娟
苏艳群
夏菲
WEN Hui;ZHANG Ruijuan;SU Yanqun;XIA Fei(Guangdong Guanhao High‐tech Co.,Ltd.,Zhanjiang 524072,China;China National Pulp and Paper Research Institute Co.,Ltd.,Beijing 100102,China;National Engineering Lab for Pulp and Paper,Beijing 100102,China)
出处
《造纸与纤维材料》
2025年第4期39-44,共6页
PAPER MAKING AND FIBER MATERIALS
关键词
研磨淀粉
纤维
透气度
防油性能
grinding starch
fiber
air permeability
oil‐proof performance
