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PEO/Si-g-PEG纳米复合材料的制备与性能 预览

Preparation and Properties of Polyethylene Oxide/Si-g-Polyethylene Glycol Nanocomposites
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摘要 采用一步法制备氨基化纳米硅,以环氧端基聚乙二醇(PEG)对纳米硅进行表面改性,制得Si-g-PEG纳米复合粒子,并以此对聚氧化乙烯(PEO)进行改性。场发射透射电子显微镜、傅里叶变换红外光谱、力学性能、扫描电子显微镜、热失重分析、差示扫描量热及生物降解性能等测试结果表明,PEO/Si-g-PEG纳米复合材料的力学性能和热稳定性明显优于纯PEO与PEO/Si复合材料,在纳米Si-g-PEG复合粒子的添加量为3%时,纳米复合材料的缺口冲击强度达到最大,为68.9 kJ/m^2,较纯PEO提高了79%;Si-g-PEG纳米复合粒子的添加使PEO的生物降解性提高。 The aminated nanosilicon was prepared by one step method and was modified with the epoxy-terminated polyethylene glycol(PEG),and the modification of polyethylene oxide with nano Si-g-PEG composited particles was studied.The results of transmission electron microscope(TEM),Fourier transform infrared spectroscopy(FT-IR),scanning electron microscopy(SEM),thermogravimetric analysis(TGA),mechanical properties measurements indicate that the mechanical properties,thermal stability and of the PEO/Si-g-PEG composites are superior to those of neat PEO and the PEO/Si composites.When the addition amount of nano-Si-g-PEG composite particles is 3%,the notch impact strength of nano-composite materials reaches the maximum value of 68.9 kJ/m~2,which is 79%higher than that of pure PEO.Biodegradability measurements show that the addition of nano Si-g-PEG composited particles improves the biodegradability of the PEO matrix.
作者 曹玉娟 亓文丽 唐龙祥 Yujuan Cao;Wenli Qi;Longxiang Tang(School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2019年第5期123-128,共6页 Polymer Materials Science & Engineering
基金 国家自然科学基金资助项目(51372059.
关键词 纳米硅 纳米Si-g-PEG复合粒子 聚氧化乙烯 力学性能 热稳定性 生物降解性 nanosilicon nano Si-g-PEG composited particles polyethylene oxide mechanical properties thermal stability biodegradability
作者简介 通讯联系人:唐龙祥,主要从事高分子材料改性研究,E-mail:tanglx@hfut.edu.cn.
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