| NCC负载纳米TiO2复合膜的表征 |
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| 引用本文： | 杨少丽,刘志明,刘昕昕. NCC负载纳米TiO2复合膜的表征[J]. 纤维素科学与技术, 2014, 0(2): 35-39 |
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| 作者姓名： | 杨少丽 刘志明 刘昕昕 |
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| 作者单位： | 东北林业大学材料科学与工程学院,黑龙江哈尔滨150040 |
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| 基金项目： | 国家自然科学基金资助项目（31070633）;人力资源和社会保障部留学回国人员科技活动择优资助项目（07041311401）;中央高校基本科研业务费专项资金资助（DL11EB01）. |
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| 摘 要： | 采用交替沉积自组装的方法制备聚乙烯醇（PVA）/纳米纤维素（NCC）-纳米TiO2/PVA复合膜,用傅里叶变换红外光谱（FT-IR）和扫描电子显微镜（SEM）表征,结果表明PVA/NCC-纳米TiO2/PVA复合膜形貌规整,NCC负载纳米TiO2粒子只是物理共混,没有化学键合.性能分析结果表明PVA/NCC-纳米TiO2/PVA复合膜在紫外光区有较强吸收,较高的拉伸强度109.5 MPa,且比PVA膜热稳定性好,热分解温度提高约20℃.
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| 关 键 词： | 纳米纤维素 交替沉积自组装 透光率 |
Characterization of NCC Loaded Nano-TiO2 Composite Membranes |
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| YANG Shao-li,LIU Zhi-ming,LIU Xin-xin. Characterization of NCC Loaded Nano-TiO2 Composite Membranes[J]. Journal of Cellulose Science and Technology, 2014, 0(2): 35-39 |
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| Authors: | YANG Shao-li LIU Zhi-ming LIU Xin-xin |
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| Affiliation: | ( College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China) |
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| Abstract: | Polyvinyl alcohol （PVA）/nanocrystalline cellulose （NCC） -nanoTiO2/PVA composite membrane was prepared by alternating deposition self-assembly method. The results of fourier transform infrared （FTIR） and scanning electron microscopy （SEM） analysis showed that morphology of PVA/NCC-nanoTiO2/PVA composite membrane was regular and nano-TiO2 particles loaded by NCC of PVA/NCC-nanoTiO2/PVA composite membrane were just physical padding and did not involve chemical reaction. The results of performance analysis of PVA/NCC-nanoTiO2/PVA composite membrane showed that PVA/NCC-nanoTiO2/PVA composite membrane in ultraviolet region had strong absorption, high tensile strength （average109.5 MPa） and higher thermal stability than that of PVA membrane （thermal decomposition temperature increased about 20℃）. |
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| Keywords: | nanocrystalline cellulose alternating deposition self-assembly transmittance |
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