敬兴,黄海洋,骆华英,张敏,董云渊,陈晓彬,陈新志.环保型PLA/CNF应用于纸张阻隔性涂布的研究[J].中国造纸学报,2022,(3):86-93 本文二维码信息
二维码(扫一下试试看!)
环保型PLA/CNF应用于纸张阻隔性涂布的研究
Study on the Application of Environmental Friendly PLA/CNF in Paper Barrier Coating
投稿时间:2021-12-16  
DOI:10.11981/j.issn.1000-6842.2022.03.86
中文关键词:  可降解  聚乳酸  改性纤维素纳米纤丝  阻隔保鲜纸
Key Words:degradable  polylactic acid  modified cellulose nanofibrils  preservative paper with barrier property
基金项目:国家大学生创新创业项目(202011488034);浙江省大学生科技创新活动(新苗人才)计划(2020R471011);浙江大学衢州研究院科技计划项目(IZQ2019-KJ-028);浙江省重点研发计划项目(2021C02031);衢州市重点研发计划项目(2021Z01);衢江区科技计划项目(QJ2019J001、QJ2020012、QJ2020022、QJ2021038)。
作者单位邮编
敬兴 衢州学院化学与材料工程学院,浙江衢州,324000 324000
黄海洋 衢州学院化学与材料工程学院,浙江衢州,324000 324000
骆华英 仙鹤股份有限公司,浙江衢州,324000 324000
张敏 衢州学院化学与材料工程学院,浙江衢州,324000 324000
董云渊 衢州学院化学与材料工程学院,浙江衢州,324000 324000
陈晓彬 衢州学院化学与材料工程学院,浙江衢州,324000 324000
陈新志 浙江大学衢州研究院,浙江衢州,324000 324000
摘要点击次数: 291
全文下载次数: 255
中文摘要:
      以聚乳酸(PLA)为基体、乙酰化改性纤维素纳米纤丝(m-CNF)为增强材料制得复合涂料,将其涂覆于A4纸表面制得PLA/m-CNF阻隔纸,探讨了复合涂料中m-CNF添加量对纸张阻隔性能、疏水性能、强度性能等的影响。结果表明,与原纸相比,当m-CNF添加量为3%时,PLA/m-CNF3%阻隔纸的抗张指数、耐破指数、疏水性能分别提高了30.6%、40.1%、24.8%,透气度降低了36.6%。原纸水蒸气透过量为1815 g/(m2·d),PLA/CNF阻隔纸的氧气和水蒸气阻隔性能相较原纸显著提升;其中,PLA/CNF3%阻隔纸的水蒸气透过量为443 g/(m2·d)、氧气透过量为45 cm3/(m2·d·(0.1 MPa));PLA/m-CNF3%阻隔纸的水蒸气透过量为385 g/(m2·d)、氧气透过量为35 cm3/(m2·d·(0.1 MPa)),与PLA/CNF3%阻隔纸相比,分别下降了13.1%和22.2%;表明PLA/m-CNF阻隔纸具有优异的保鲜效果。
Abstract:
      Polylactic acid (PLA) as matrix and acetylated modified cellulose nanofibril (m-CNF) as reinforcing material were used to prepare composite coating which was coated on the surface of A4 paper to prepare PLA/m-CNF barrier paper, and effects of additive amount of m-CNF in composite coating on barrier property, hydrophobicity, and strength of the barrier paper were discussed. Compared with base paper, when the additive amount of m-CNF is 3%, the tensile index, burst index, and hydrophobicity of the PLA/m-CNF3% barrier paper increase by 30.6%, 40.1%, and 24.8%, respectively, while the air permeability decreases by 36.6%. The water vapor transmission of base paper is 1815 g/(m2·d) whereas PLA/CNF barrier paper significantly improves the barrier performance on oxygen and water vapor with water vapor transmission of PLA/CNF3% barrier paper of 443 g/(m2·d) and oxygen transmission of 45 cm3/(m2·d·(0.1 MPa)‍). Compared with PLA/CNF3% barrier paper, the water vapor (385 g/(m2·d)) and oxygen (35 cm3/(m2·d·(0.1 MPa))) transmission of PLA/m-CNF3% barrier paper decreases by 13.1% and 22.2%, respectively, indicating the excellent barrier and preservative performance of the as-prepared PLA/m-CNF barrier paper.
查看全文  查看/发表评论  下载PDF阅读器  HTML

分享按钮