Improvement of polyamide 1010 with silica nanospheres via in situ melt polycondensation
Improvement of polyamide 1010 with silica nanospheres via in situ melt polycondensation
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DOI：
10.1002/pc.22318
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发表时间：
2012-10
影响因子：
5.2
通讯作者：
Manqing Yan;Han Yang
中科院分区：
文献类型：
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作者：
Manqing Yan;Han Yang
在二氧化硅纳米球(SiO_2NH_2)存在下，采用原位熔融缩聚法制备了聚酰胺1010。傅立叶变换红外光谱(FTIR)、X射线光电子能谱(XPS)和热重分析(TGA)测试表明，纳米球表面接枝了PA1010链。广角X射线衍射仪和差示扫描量热仪测试表明，与尼龙1010和尼龙1010/二氧化硅纳米复合材料相比，尼龙1010/SiO_2NH_2纳米复合材料的结晶度(χ_c)较低。动态力学分析(DMA)表明，由于SiO_2-NH_2纳米球限制了PA1010链的迁移率，提高了PA1010的玻璃化转变温度(Tg)、拉伸强度和储能弹性。波兰姆。公司，2012年。2012美国塑料工程师学会
Polyamide 1010 (PA1010) had been prepared by in situ melt polycondensation in presence of silica nanospheres with amine groups on the surfaces (SiO2NH2). Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and thermal gravimetric analysis (TGA) measurements demonstrated that the nanosphere surface was grafted with PA1010 chains. Wide angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC) measurements showed that the PA1010/SiO2NH2 nanocomposites had a lower degree of crystallinity (χc) in comparison with PA1010 and PA1010/SiO2 nanocomposites. Dynamic mechanical analysis (DMA) indicated that SiO2NH2 nanospheres improved glass transition temperature (Tg), tensile strength and storage modulus of PA1010 since SiO2–NH2 nanospheres limited the mobility of PA1010 chains. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers