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玉米秸秆基木质素-醋酸纤维素紫外屏蔽膜的制备及其性能

林昊 郭东毅 吕谦 贾惜文 周成凤 肖卫华

林昊, 郭东毅, 吕谦, 等. 玉米秸秆基木质素-醋酸纤维素紫外屏蔽膜的制备及其性能[J]. 复合材料学报, 2023, 40(8): 4768-4778. doi: 10.13801/j.cnki.fhclxb.20221110.001
引用本文: 林昊, 郭东毅, 吕谦, 等. 玉米秸秆基木质素-醋酸纤维素紫外屏蔽膜的制备及其性能[J]. 复合材料学报, 2023, 40(8): 4768-4778. doi: 10.13801/j.cnki.fhclxb.20221110.001
LIN Hao, GUO Dongyi, LYU Qian, et al. Preparation of corn stover-based lignin-cellulose acetate ultraviolet shielding film and its properties[J]. Acta Materiae Compositae Sinica, 2023, 40(8): 4768-4778. doi: 10.13801/j.cnki.fhclxb.20221110.001
Citation: LIN Hao, GUO Dongyi, LYU Qian, et al. Preparation of corn stover-based lignin-cellulose acetate ultraviolet shielding film and its properties[J]. Acta Materiae Compositae Sinica, 2023, 40(8): 4768-4778. doi: 10.13801/j.cnki.fhclxb.20221110.001

玉米秸秆基木质素-醋酸纤维素紫外屏蔽膜的制备及其性能

doi: 10.13801/j.cnki.fhclxb.20221110.001
基金项目: 省部共建生物多糖纤维成形与生态纺织国家重点实验室(青岛大学)开放项目(KF2020202)
详细信息
    通讯作者:

    周成凤,博士,讲师,硕士生导师,研究方向为生物质材料分析和综合利用 E-mail: chengfengzhou@qdu.edu.cn;

    肖卫华,博士,教授,博士生导师,研究方向为生物质资源转化利用 E-mail: xwhddd@163.com

  • 中图分类号: TB332

Preparation of corn stover-based lignin-cellulose acetate ultraviolet shielding film and its properties

Funds: State Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University) (KF2020202)
  • 摘要: 为减少紫外线对人类造成的伤害和设施的破坏,本文以过氧乙酸复合马来酸预处理(PAM)玉米秸秆得到的纤维素产物为原料,以三氟乙酸作为催化剂和溶剂通过相转化法制备具有紫外屏蔽功能的玉米秸秆基醋酸纤维素膜。随着PAM预处理温度的提高,乙酰化程度和醋酸纤维素产率分别增加到42.19%和93.97%。制得的醋酸纤维素膜(ZCA-80~ZCA-120)的光学性能表征结果表明:该醋酸纤维素膜紫外线屏蔽性能良好,ZCA-110的中波紫外线(UVB)和长波紫外线(UVA)屏蔽率分别达到96.51%和73.72%。同时,揭示了ZCA-80~ZCA-120在紫外光区(200~400 nm)的屏蔽率及在660 nm处的透光率(T660)与木质素含量的相关关系,表明木质素含量是决定醋酸纤维素膜紫外屏蔽性能的关键因素。采用紫外分光光度计、接触角测试仪、XRD和FTIR对未添加壳聚糖(ZCA-110)和添加壳聚糖(CS/ZCA-5)的醋酸纤维素膜进行比较研究,发现添加壳聚糖的膜透光率得到改善、亲水性增强、结晶度降低。本文制备的木质纤维基醋酸纤维素膜将为生物可降解紫外屏蔽材料的研发提供新思路。

     

  • 图  1  不同过氧乙酸复合马来酸(PAM)预处理温度下的玉米秸秆组成成分(a)和FTIR图谱(b)

    Figure  1.  Composition (a) and FTIR spectrum (b) of corn stover at different peracetic acid and maleic acid (PAM) pretreatment temperature

    图  2  乙酰化程度、醋酸纤维素产率(a)和醋酸纤维素的FTIR图谱(b)

    Figure  2.  Degree of acetylation, the yield of cellulose acetate (a) and the FTIR spectrum of cellulose acetate (b)

    图  3  玉米秸秆基醋酸纤维素膜的紫外-可见光透射率曲线(a)和吸光度曲线(b)

    Figure  3.  UV-Vis transmittance curves (a) and absorbance curves (b) of corn stover-based cellulose acetate film

    图  4  ZCA-80~ZCA-120的长波紫外线(UVA)、中波紫外线(UVB)屏蔽率和660 nm处的透光率(T660)

    Figure  4.  UVA, UVB shielding rates and transmittance at 660 nm (T660) of ZCA-80-ZCA-120

    图  5  ZCA-80~ZCA-120的UV (200~400 nm)屏蔽率(a)、T660 (b)与木质素含量的关系

    R2—Correlation coefficient

    Figure  5.  Relationship between the UV (200-400 nm) shielding rate (a), T660 (b) of ZCA-80-ZCA-120 and the lignin content

    图  6  ZCA-110与CS/ZCA-5~CS/ZCA-9的UVA、UVB屏蔽率和T660

    Figure  6.  UVA, UVB shielding rates and T660 of ZCA-110 and CS/ZCA-5-CS/ZCA-9

    图  7  紫外灯照射前后的玉米秸秆基醋酸纤维素紫外屏蔽膜的接触角示意图

    Figure  7.  Schematic diagram of contact angle of corn stover-based cellulose acetate UV shielding film before and after UV lamp irradiation

    图  8  玉米秸秆基醋酸纤维素紫外屏蔽膜的XRD图谱(a)和傅里叶变换红外图谱(b)

    Figure  8.  XRD pattern (a) and FTIR spectrum (b) of corn stover-based cellulose acetate UV shielding film

    表  1  醋酸纤维素(Ace)样品的命名

    Table  1.   Naming of cellulose acetate (Ace) sample

    Sample name Pretreatment temperature/℃
    Ace-80 80
    Ace-90 90
    Ace-100 100
    Ace-110 110
    Ace-120 120
    下载: 导出CSV

    表  2  醋酸纤维素膜(ZCA)样品的命名

    Table  2.   Naming of cellulose acetate film (ZCA) sample

    Sample name Pretreatment temperature/°C Mass ratio of Ace-110
    to chitosan
    ZCA-80 80
    ZCA-90 90
    ZCA-100 100
    ZCA-110 110
    ZCA-120 120
    CS/ZCA-5 110 5:1
    CS/ZCA-7 110 7:1
    CS/ZCA-9 110 9:1
    Note: CS—Chitosan.
    下载: 导出CSV
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  • 收稿日期:  2022-09-06
  • 修回日期:  2022-10-12
  • 录用日期:  2022-11-03
  • 网络出版日期:  2022-11-11
  • 刊出日期:  2023-08-15

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