Preparation and Characterization of TiO2 Nanorods/SiO2 @ TiO2 Core Shell Particles and Its Application in PLLA
文献类型：期刊论文
| 作者 | Li Gen1; Wang Rui1; Wang Feng2; Liang Ningning1; Zhu Zhiguo1; Zhang Xiuqin1; Yang Mingshu2 |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2015-10-10 |
| 卷号 | 36期号:10页码:2024-2033 |
| 关键词 | Poly(L-lactic acid) Nano titanium dioxide Composite Stretching property |
| 英文摘要 | Rutile-type titanium dioxide (TiO2) nanorods were synthesized using titanium trichloride as titanium source, which were further superficially modified by tetraethoxysilane and the nano-TiO2 coated by SiO2 were obtained(SiO2 @ TiO2). The average length of TiO2 nanorods is about 50 nm, the average diameter of TiO2 nanorods is about 8 nm and the thickness of the SiO2 coating layer is about 4 nm. The maximum absorption wavelength of SiO2 @ TiO2 has a slight blue shift compared with that of TiO2. Poly(L-lactic acid) (PLLA)/(SiO2 @ TiO2) nanocomposites were prepared by melt blending. The thermal, crystallization, UV-shielding and stretching properties of PLLA and PLLA/(SiO2 @ TiO2) nanocomposites were characterized by transmission electron microscope(TEM), thermogravimetric analysis(TGA), differential scanning calorimetry analysis (DSC), ultraviolet-visible absorption spectrometry (UV-Vis) and wide angle X-ray scattering (2D-WAXS). The results showed that the SiO2@ TiO2 nanoparticles were dispersed well in the PLLA matrix. SiO2@ TiO2 improved the thermal decomposition temperature and crystallization rate of PLLA and had a heterogeneous nucleation role in PLLA. The PLLA/(SiO2 @ TiO2) films had excellent UV shielding property while maintaining high visible transmittance. The orientation and crystallinity of PLLA/(SiO2 @ TiO2) nanocomposites stretched at 90 and 100 degrees C were higher than that of PLLA. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29176]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Beijing Inst Fash Technol, Dept Mat Sci & Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Gen,Wang Rui,Wang Feng,et al. Preparation and Characterization of TiO2 Nanorods/SiO2 @ TiO2 Core Shell Particles and Its Application in PLLA[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2015,36(10):2024-2033. |
| APA | Li Gen.,Wang Rui.,Wang Feng.,Liang Ningning.,Zhu Zhiguo.,...&Yang Mingshu.(2015).Preparation and Characterization of TiO2 Nanorods/SiO2 @ TiO2 Core Shell Particles and Its Application in PLLA.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,36(10),2024-2033. |
| MLA | Li Gen,et al."Preparation and Characterization of TiO2 Nanorods/SiO2 @ TiO2 Core Shell Particles and Its Application in PLLA".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 36.10(2015):2024-2033. |
入库方式： OAI收割
来源：化学研究所
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