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首页> 外文期刊>Physics and Materials Chemistry >Spectroscopic Study of Ultra High Molecular Weight Polyethylene (UHMWPE) and Mg-Ni-doped ZnFe2O3 Nano Composites
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Spectroscopic Study of Ultra High Molecular Weight Polyethylene (UHMWPE) and Mg-Ni-doped ZnFe2O3 Nano Composites

机译：超高分子量聚乙烯（UHMWPE）和Mg-Ni掺杂ZnFe2O3纳米复合材料的光谱研究

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The present study aims at investigating the effect of incorporating nano scale MgxNixZn1-xFe2O3 (where x=0.15) as nano fillers on the physical and chemical stability of ultra high molecular weight polyethylene (UHMWPE). The effect of adding 1% and 2% (by weight) nano fillers on the physicochemical properties of UHMWPE/MgxNixZn1-xFe2O3 nano composites have also been investigated by using FTIR, Raman, and UV-VIS spectroscopy. FTIR data of UHMWPE/MgxNixZn1-xFe2O3 nano composites reveal that the addition of MgxNixZn1-xFe2O3 up to 1% induces significant chemical and physical structural alterations in UHMWPE matrix. However, this behavior is found to reduce on increasing the concentration of nano fillers from 1% to 2%. Raman spectroscopic data shows that crystalline contents of UHMWPE remain unaffected with the addition of nano fillers, however; a significant increase in amorphous contents and decrease in all-trans interphase region is observed. This behavior is attributed to the chain scission reactions due to addition of MgxNixZn1-xFe2O3 followed by compression moulding process at high pressure and elevated temperature. Absorption spectroscopy analysis revealed that the incorporation of MgxNixZn1-xFe2O3 results in decrease of energy band gaps from 2.14 eV to 2.08 eV (for direct transition) and from 1.54 eV to 1.38eV (for indirect transition) due to band gap energy which is induced because of MgxNixZn1-xFe2O3 incorporation as nano fillers within the PE matrix.
机译：本研究旨在研究将纳米级Mgxnixzn1-XFE2O3（其中X = 0.15）掺入纳米填料的纳米填料对超高分子量聚乙烯（UHMWPE）的物理和化学稳定性的影响。通过使用FTIR，拉曼和UV-Vis光谱，还研究了加入1％和2％（重量）纳米填料对UHMWPE / MGXNIXZN1-XFE2O3纳米复合材料的物理化学性质的影响。 UHMWPE / MGXNIXZN1-XFE2O3纳米复合材料的FTIR数据揭示了MGXNIXZN1-XFE2O3，高达1％的添加诱导UHMWPE基质中的显着化学和物理结构改变。然而，发现这种行为减少了增加纳米填料的浓度从1％〜2％。拉曼光谱数据表明，通过添加纳米填料，UHMWPE的结晶含量保持不受影响;观察到无定形内容物的显着增加和全反相间区域的降低。由于在高压下加入Mgxnixzn1-XFe2O3，这种行为归因于由于添加MgxnixzN1-XFe2O3而引起的链易分泌反应。吸收光谱分析显示，Mgxnixzn1-XFE2O3的掺入导致从2.14 EV的能带间隙降低到2.08eV（用于直接过渡），并且由于带隙能量引起的带隙能量，从1.54eV到1.38eV（用于间接转换） Mgxnixzn1-XFE2O3在PE基质中作为纳米填料的掺入。

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