壳聚糖/蜂蜡改善纸基材料水蒸气和氧气阻隔性能研究

刘晓菲; 张雪; 赵雨萌; 程芸; 胡小莉; 张红杰

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Study on Improving Water Vapor and Oxygen Barrier Properties of Paper-based Materials by Chitosan/Beeswax

Received:March 17, 2022

DOI：10.11981/j.issn.1000-6842.2023.01.09

Key Words:chitosan;beeswax;paper-based material;water vapor;oxygen;barrier property

Fund Project:国家自然科学基金项目（项目号32001276，32171727）。

Author Name	Affiliation	Postcode
LIU Xiaofei^*	China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102 National Engineering Lab for Pulp and Paper, Beijing, 100102	100102
ZHANG Xue	China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102 South China University of Technology,Guangzhou, Guangdong Province, 510640 Zhuangli Printing Company, Shantou, Guangdong Province, 515041 National Engineering Lab for Pulp and Paper, Beijing, 100102	100102
ZHAO Yumeng	China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102 National Engineering Lab for Pulp and Paper, Beijing, 100102	100102
CHENG Yun	China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102 National Engineering Lab for Pulp and Paper, Beijing, 100102	100102
HU Xiaoli	China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102 National Engineering Lab for Pulp and Paper, Beijing, 100102	100102
ZHANG Hongjie	China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102 National Engineering Lab for Pulp and Paper, Beijing, 100102	100102

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Abstract:

In this study， the effects of beeswax addition and compounding methods （mixed or layered） of beeswax and chitosan on the barrier performance （water vapor and oxygen） and thermal stability of coating layer of paper-based materials （PBM） were investigated.The results showed that the water vapor transmission （WVT） of coated paper decreased with the increase in beeswax additive amount. When the additive amount of beeswax was 15%， the WVT of layer-coated and mix-coated PBMs were reduced to 21.87 and 24.13 g/（m²·d） at 50% RH， respectively， which were 80.3% and 78.2% lower than that of the pure chitosan-coated paper while the difference in WVT between layer-coated and mix-coated PBMs was slight. Under the condition of 75% RH， the WVT of layer-coated PBM （163.69 g/（m²·d）） and mix-coated PBM （242.24 g/（m²·d）） was reduced by 79.4% and 69.5%， respectively， compared with pure chitosan-coated paper； meanwhile the WVT of layer-coated PBM was reduced by 32% compared with its mix-coated counterpart. The oxygen transmission of the mix-coated and layer-coated PBMs increased with the increase in beeswax additive amount and remained as low as 70.19 and 101.75 cm³/（m²·d）， respectively， at 15% beeswax additive amount.

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