Measurement of interdiffusion in polymeric materials by applying Raman spectroscopy
Measurement of interdiffusion in polymeric materials by applying Raman spectroscopy
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DOI：
10.1016/j.polymertesting.2015.07.004
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发表时间：
2015-09-01
期刊：
影响因子：
5.1
通讯作者：
Lucyshyn, Thomas
中科院分区：
文献类型：
--
作者：
Bruckmoser, Katharina;Resch, Katharina;Lucyshyn, Thomas
对拉曼光谱在检测双组分注塑制品互扩散方面的特殊价值进行了评估。通过改变第二组分T-M2的熔体温度，从聚丙烯、苯乙烯基热塑性弹性体、聚碳酸酯、聚苯乙烯和聚甲基丙烯酸甲酯四种材料组合中选择四种材料组合制成双组分注射成型零件。然而，也出现了一些限制。其中包括空间分辨率极限和探测极限。测定了小于1微米-3微米的互扩散长度。随着T-M2的增加，互扩散长度或增加、或减小或无变化。将互扩散长度与拉伸试验得到的应力和断裂伸长率进行了比较。互扩散长度与力学性能之间没有明显的相关性。然而，较高的T-M2引起了应力和断裂伸长率的增加。(C)爱思唯尔有限公司出版的2015年。
Raman spectroscopy was evaluated regarding its specific value in terms of detection of interdiffusion in two-component injection molded parts. Two-component injection molded parts made of four material combinations chosen from polypropylene, styrene based thermoplastic elastomer, polycarbonate, polystyrene and polymethyl methacrylate produced by varying melt temperatures of the second component T-M2 were investigated.In principle, Raman spectroscopy was found to be a powerful tool to detect interdifftision. However, some restrictions arise. These include spatial resolution limit and detection limit. Interdiffusion lengths ranging from below 1 mu m-3 mu m were determined. Either an increase, a decrease or no change of the interdiffusion length for increasing T-M2 was detected. The interdiffusion lengths were compared with the stress and elongation at break obtained by tensile tests. No distinct correlation of interdiffusion length and the mechanical properties was found. However, a high T-M2 provoked an increase in the stress and elongation at break. (C) 2015 Published by Elsevier Ltd.