用硅烷偶联剂γ-甲基丙烯酰氧基丙基三甲氧基硅烷（KH550）对纳米TiO2进行改性,将不同比例的聚乙烯醇（17-88与17-99）相混合制成胶液,再采用直接共混法制备了纳米TiO2/聚乙烯醇（PVA）复合材料,并流延成膜。通过自制透水仪、扫描电镜、热失重分析、拉伸强度、耐水性能以及透明性对纳米TiO2/PVA复合膜进行表征,探讨不同含量的PVA 17-88对复合膜的性能影响。结果表明,PVA 17-88的质量分数为30%,纳米TiO2/PVA膜厚度控制在25～30μm,透水量较大,拉伸强度达到28.72MPa,耐水性能最佳。
The modified nano-TiO2 by aminopropyl triethoxy silane（KH550） was used to prepare nano-TiO2/PVA composites through a solution casting method（PVA types： 17-88 and 17-99）.The different contents of PVA 17-88 in nano-TiO2/PVA composites were characterized by TG analysis,and the structures of the composites were analyzed by SEM.The mechanical and water resistance and transparency of the composites were also characterized.The results show that when the mass fraction of PVA 17-88 is 30% and the thickness of membrane is controlled in 25~30 μm,the tensile strength is up to 28.72 MPa,the mass loss rate is the lowest.
参考文献
| [1] | Pillay V, Sibanda W, Danckwerts M P. Sequential design of a novel PVA- based crusslinked ethylenic hnmnpolymer for extended drug delivery [J]. Int J Pharm, 2005, 301(1/2): 89-101. |
| [2] | WestedtU, Wittmar M, Hellwig M, et al. Paelitaxel releasing films consisting of poly (vinylalcohol) - graft - poly (lactide- co - glycolide) and their potential as biodegradable stent coatings [J]. J Controlled Release, 2006, 111 (1/2) : 235-246. |
| [3] | Wang L C, Chen X G, Yu L J, et al. Controlled drug release through carhoxy methyl - chitosan/poly (vinyl alcohol) blend films [J]. Polym EngSci, 2007, 47(9):1373-1379. |
| [4] | Yamazaki S, Matsunaga S, Hori K. Photocatalytic degradation of trichloroethylene in water using TiO2 pellets[J]. Water Res, 2001, 35(4): 1022-1028. |
| [5] | Lozinsky V I, Plieva F M. Poly(vinylalcohol) cryogels employed as matrices forcell immobilization [J]. Enzyme Mierob Teeh, 1998, 23(3): 227-242. |
| [6] | 魏绍东,柳巨澜.聚乙烯醇的生产现状与展望[J].精细化工原料及中间体,2008(2):6-9. |
| [7] | 刘白玲,曾祥成.聚乙烯醇生物降解的影响因素[J].材料研究学报,2000,14(增刊):108-112. |
| [8] | Alexy P, Lacik I, Simkovd B, et al. Effect of melt processing on thermo-mechanical degradation of poly(vinyl alcohol)s [J]. Polymer Degradation and Stability, 2004, 85(2): 823-830. |
| [9] | Jugan M L, Barillet S, Simon-Deckers A, et al. Cytotoxic and genotoxic impact of TiO2 nanoparticles on A549 cells [J]. Journal of Biomedical Nanotechnology, 2011, 7(1): 22-23. |
| [10] | Casanova Axelle, Carriere Marie, Herlin- Boime Nathalie. Dispersion of aeroxil P25 TiOz nanoparticle in media of biological interest for the culture of eukaryotic cells [J]. Journal of Biomedical Nanotechnology, 2011, 7(1): 24-25. |
| [11] | Khare Priyanka, Sonane Madhavi, Pandey Rakesh, et al. Adverse effects of TiO2 and ZnO nanoparticles in soil nematode, caenorhabditis elegans [J]. Journal of Biomedical Nanotechnology, 2011, 7(1): 116-117. |
| [12] | Murugan Eagambaram, Rangasamy Rajmohan. Development of stable pollution free TiOz/Au nanoparticle immobilized green photo catalyst for degradation of methyl orange [J]. Journal of Biomedical Nanoteehnology, 2011, 7(1) : 225-228. |
| [13] | Du Guodong, Wan Bin, Guo Zaiping, et al. Effect of annealing on electrochemical performance of anodized TiO2 nanotubes for lithium ion batteries [J]. Advanced Science Letters, 2011, 4(2): 469-473. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%