收稿日期: 2018-01-17
网络出版日期: 2020-03-22
基金资助
高水平地方高校试点-研究生创新资助项目(产学研);上海高校教师产学研践习计划
Characterization and preparation of nano TiO2/P(MMA/BMA) composite materials by bicontinuous microemulsion polymerization
Received date: 2018-01-17
Online published: 2020-03-22
研究了油酸对纳米二氧化钛(TiO$_{2})$改性后的纳米二氧化钛与聚甲基丙烯酸酯(poly (methl methacrylate/butyl methacrylate), P(MMA/BMA))聚合得到复合材料的性质.红外光谱、分散性能分析和接触角分析表征结果表明, 改性后二氧化钛疏水性增强. 采用双连续相微乳液法制备 TiO2/P(MMA/BMA)复合材料, 并利用红外光谱表征 TiO2 / P(MMA/BMA)复合材料. 由能谱仪(energy dispersive spectrometer, EDS)分析表明, 油酸改性纳米 TiO2在复合材料中分散均匀, 并且讨论了二氧化钛添加量对产物热稳定性和紫外线屏蔽的影响, 随着 TiO2含量的增加(最高5%), 热分解温度升高, 紫外吸收区域变强, 能阻挡400 nm以下的紫外光.
贾少晋, 鲍沂沂, 李记伟, 陈俊聿, 吴伟, 杨少华 . 双连续相微乳液制备纳米 TiO2/P(MMA/BMA)复合材料与表征[J]. 上海大学学报(自然科学版), 2020 , 26(1) : 143 -152 . DOI: 10.12066/j.issn.1007-2861.1998
This paper is a study on oleic acid-modified TiO2 nanoparticles and the incorporation of modified TiO2 nanoparticles into polyacrylate. The oleic acid is used to modify the TiO2 nanoparticles. From the Fourier transform-infrared spectroscopy (FT-IR) spectrum and the dispersity test, it can be seen that TiO2 nanoparticles enhance the hydrophobic after modification. The TiO2/poly (methyl methacrylate/butyl methacrylate) (P(MMA/BMA)) hybrid emulsion is prepared by bicontinuous microemulsion polymerization. In the FT-IR spectrum, the TiO2 characteristic peak appears. From the scanning electron microscopy (SEM) images and energy dispersive spectrometer (EDS) analyses spectrum, it is learned that the TiO2 nanoparticles are homogeneously dispersed in polyacrylate. The effect of addition amount of TiO2 nanoparticles on the thermal and the ultraviolet-shielding (UV-shielding) properties is discussed. With the increase of TiO2 content (maximum 5%), the TiO2/P (MMA/BMA) nanocomposites are thermally stable. Besides, it can block the UV light below 400 nm.
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