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类沸石咪唑酯骨架ZIF-L/PVA复合薄膜的制备与性能

王保营 丁艳红 李璐瑶 郭冉冉 夏知星 张岩

王保营, 丁艳红, 李璐瑶, 等. 类沸石咪唑酯骨架ZIF-L/PVA复合薄膜的制备与性能[J]. 复合材料学报, 2022, 39(10): 4709-4717. doi: 10.13801/j.cnki.fhclxb.20211103.001
引用本文: 王保营, 丁艳红, 李璐瑶, 等. 类沸石咪唑酯骨架ZIF-L/PVA复合薄膜的制备与性能[J]. 复合材料学报, 2022, 39(10): 4709-4717. doi: 10.13801/j.cnki.fhclxb.20211103.001
WANG Baoying, DING Yanhong, LI Luyao, et al. Preparation and properties of zeolitic imidazolate framework ZIF-L/PVA composite films[J]. Acta Materiae Compositae Sinica, 2022, 39(10): 4709-4717. doi: 10.13801/j.cnki.fhclxb.20211103.001
Citation: WANG Baoying, DING Yanhong, LI Luyao, et al. Preparation and properties of zeolitic imidazolate framework ZIF-L/PVA composite films[J]. Acta Materiae Compositae Sinica, 2022, 39(10): 4709-4717. doi: 10.13801/j.cnki.fhclxb.20211103.001

类沸石咪唑酯骨架ZIF-L/PVA复合薄膜的制备与性能

doi: 10.13801/j.cnki.fhclxb.20211103.001
基金项目: 河南省科技攻关项目(212102110195,202102210243);河南省高等学校重点科研项目(19A430016);河南省高等学校大学生创新创业训练计划项目(S202010469007);河南牧业经济学院科研创新基金(XKYCXJJ2017011);河南牧业经济学院博士启动基金(53000160)
详细信息
    通讯作者:

    张岩,博士,副教授,硕士生导师,研究方向为复合包装材料及包装安全 E-mail: yanzhang12@yeah.net

  • 中图分类号: TB332

Preparation and properties of zeolitic imidazolate framework ZIF-L/PVA composite films

  • 摘要: 类沸石咪唑酯骨架材料(ZIFs)因具有独特的结构和功能,使得利用ZIFs增强改性高分子材料的性能,制备新型功能复合材料,日益受到人们的重视。为研究ZIFs对聚乙烯醇(PVA)的增强改性作用,本研究以类沸石咪唑酯骨架ZIF-L为增强剂,采用溶液流延法制备了系列类沸石咪唑酯骨架ZIF-L/PVA复合薄膜,并对复合薄膜的结构、光学性能、力学性能、颜色、阻隔性能及热稳定性进行了表征。结果表明:ZIF-L的加入增强了复合薄膜的抗紫外性能;随着ZIF-L含量的增加,复合薄膜拉伸强度先增大后降低,水蒸气透过率及最大热分解温度先降低后升高,氧气透过量逐渐增大。当ZIF-L的质量分数为1wt%时,拉伸强度可提高约15%,水蒸气透过率降低1.8%,ZIF-L对PVA具有明显的增强作用,复合薄膜的综合性能较好;当ZIF-L的质量分数大于5wt%时,复合薄膜的最大热分解温度开始升高,最高可达297.84℃。制备的ZIF-L增强改性PVA复合材料为新型功能性包装复合薄膜的开发应用提供了有益借鉴。

     

  • 图  1  类沸石咪唑酯骨架材料/聚乙烯醇(ZIF-L/PVA)复合薄膜的制备过程示意图

    Figure  1.  Schematic diagram of the preparation process for zeolitic imidazolate frameworks/poly(vinyl alcohol) (ZIF-L/PVA) composite film

    图  2  ZIF-L (a)及不同ZIF-L含量的ZIF-L/PVA复合薄膜的SEM图像:((b)~(f)) 表面;((g)~(h)) 断面

    Figure  2.  SEM images of ZIF-L (a) and ZIF-L/PVA composite films with different concentrations of ZIF-L: ((b)-(f)) Surface; ((g)-(h)) Cross-section

    图  3  ZIF-L及不同ZIF-L含量的ZIF-L/PVA复合薄膜的XRD图谱

    Figure  3.  XRD patterns of ZIF-L and ZIF-L/PVA composite films with different concentrations of ZIF-L

    图  4  不同ZIF-L含量的ZIF-L/PVA复合薄膜的FTIR图谱:(a) 40 00~500 cm−1范围内的ATR-IR图谱;(b) 19 00~400 cm−1范围内FTIR图谱

    Figure  4.  FTIR spectra of ZIF-L/PVA composite films with different concentrations of ZIF-L: (a) ATR-IR spectra in the range of 40 00-500 cm−1; (b) FTIR spectra in the range of 19 00-400 cm−1

    图  5  不同ZIF-L含量的ZIF-L/PVA复合薄膜的紫外可见光谱

    Figure  5.  UV-Vis spectra of ZIF-L/PVA composite films with different concentrations of ZIF-L

    图  6  不同ZIF-L含量的ZIF-L/PVA复合薄膜的力学性能

    Figure  6.  Mechanical performance of ZIF-L/PVA composite films with different concentrations of ZIF-L

    图  7  不同ZIF-L含量的ZIF-L/PVA复合薄膜的水蒸气透过率

    Figure  7.  Water vapor permeability of ZIF-L/PVA composite films with different concentrations of ZIF-L

    图  8  不同ZIF-L含量的ZIF-L/PVA复合薄膜的氧气透过量

    Figure  8.  Oxygen permeability of ZIF-L/PVA composite films withdifferent concentrations of ZIF-L

    图  9  不同ZIF-L含量的ZIF-L/PVA复合薄膜的TG曲线 (a) 及DTG曲线 (b)

    Figure  9.  TG curves (a) and DTG curves (b) of ZIF-L/PVA composite films with different concentrations of ZIF-L

    表  1  ZIF-L/PVA复合薄膜的光学性能

    Table  1.   Optical properties of the ZIF-L/PVA composite films

    Mass fraction of ZIF-L/wt%Light transmittance/%Haze/%L*a*b*E
    092.83±0.16a0.21±0.03e94.56±0.04b−0.87±0.03bc1.43±0.01b2.13±0.04d
    192.63±0.16a0.91±0.01d94.28±0.02c−0.84±0.03ab1.61±0.01a2.45±0.02c
    592.73±0.06a10.47±0.57c93.19±0.00e−0.78±0.04a1.64±0.03a3.52±0.01a
    1092.73±0.12a26.61±0.53b94.07±0.01d−0.93±0.06c1.14±0.01d2.60±0.01b
    1591.53±0.16b59.92±0.08a95.04±0.06a−0.90±0.02bc1.29±0.14c1.65±0.04e
    Notes: Value(means±stand deviation); Same letters in the column are not significant; P>0.05; L*, a*, b*—Color parameters; L*—Brightness, black-white; a*—Greenness-redness; b*—Blueness-yellowness; ΔE—Total color difference.
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出版历程
  • 收稿日期:  2021-09-10
  • 修回日期:  2021-10-19
  • 录用日期:  2021-10-24
  • 网络出版日期:  2021-11-03
  • 刊出日期:  2022-08-22

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