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| Research on Preparation of Barrier Long Fiber Tissue Paper Coated with Modified Cellulose Nanofibril |
| Received:August 11, 2020 |
| DOI：10.11980/j.issn.0254-508X.2020.11.002 |
| Key Words:cellulose nanofibril （CNF） carboxymethyl modification barrier properties hydrophobicity tissue paper |
| Fund Project:山东省重点研发计划重大科技创新工程项目(2019JZZY010304)；国家自然科学基金(31679590)；山东省科技计划项目(2016GGX102014)；山东省科技计划项目(ZR201702220356)；山东省科技计划项目(J16LE15)。 |
| Author Name | Affiliation | Postcode | | LI Ziyuan | State Key Lab of Bio-based Material and Green Papermaking, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | ZHANG Jinzhu | Shandong Shengquan Group Co., Ltd., Ji’nan,Shandong Province,250200 | 250200 | | WANG Penghui | Shandong Shengquan Group Co., Ltd., Ji’nan,Shandong Province,250200 | 250200 | | DING Qijun | State Key Lab of Bio-based Material and Green Papermaking, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | LI Xia | State Key Lab of Bio-based Material and Green Papermaking, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | JIANG Yifei | State Key Lab of Bio-based Material and Green Papermaking, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | HAN Wenjia | State Key Lab of Bio-based Material and Green Papermaking, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 |
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| Abstract:In this paper， long-fiber tissue paper with high air permeability and high wet strength was used as the substrate， high-strength， high-transmittance， and soft long-fiber tissue paper with high barrier properties was prepared by coating modified cellulose nanomaterial. The effects of cellulose nanofibril （CNF）， carboxymethylated modified cellulose nanofibril （C-CNF） and AKD dosages on the tensile strength air permeability and surface hydrophobicity of the coated paper were compared. The results showed that C-CNF exhibited better performance than CNF. When its coating concentration was 1.0%（coating amount 1.6 g/m2）， the tensile index was 27.3 N·m/g， increased 46.0% compared to that of AKD coated paper. The contact angle between water and paper surface reached 121.5°， which was more hydrophobic than CNF coating， and compared to the sample coated with AKD emulsion，the hydrophobicity increased by 60.9%， while the air permeability was only 21.1 μm/（Pa·s）， which was further lower than that of CNF coated paper sample and 60% lower than the sample coated with AKD emulsion， the water vapor permeablity was 1.95×10-11 g·m/（m2·s·Pa）， 52% of that coated with AKD.The prepared paper had a good hydrophobicity barrier performance. |
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