EVIDENCE OF A TRANSCRYSTALLINE INTERPHASE IN FIBER PE HOMOCOMPOSITES AS REVEALED BY MICRODIFFRACTION EXPERIMENTS USING SYNCHROTRON RADIATION
EVIDENCE OF A TRANSCRYSTALLINE INTERPHASE IN FIBER PE HOMOCOMPOSITES AS REVEALED BY MICRODIFFRACTION EXPERIMENTS USING SYNCHROTRON RADIATION
复制标题
DOI：
10.1081/mb-100107559
复制
发表时间：
2001-11
期刊：
影响因子：
--
通讯作者：
A. Flores;A. Poeppel;C. Riekel;K. Schulte
中科院分区：
文献类型：
--
作者：
A. Flores;A. Poeppel;C. Riekel;K. Schulte
采用微束广角X射线散射（WAXS）方法对单纤维聚乙烯（PE）均质复合材料的不同部位进行了研究。衍射图谱显示在距离纤维表面9 μm的层内存在取向的晶体结构。这一层与穿晶界面相的出现有关。在复合材料的不同位置处出现的晶体结构主要是正交的。然而，少量的单斜相被发现出现在纤维皮肤和内的穿晶层。研究了在穿晶相的不同位点处获得的二维（2D）WAXS图案的方位角扫描，以估计每个衍射点处的晶体晶胞方向。最后，在矩阵中的（110）和（200）正交反射的积分宽度的分析，在横晶界面，并在纤维中的报告。* 献给弗朗西斯科·J·巴尔塔·卡列哈教授65岁生日。
Microbeam wide-angle X-ray scattering (WAXS) experiments have been carried out at different locations of a single-fiber PE homocomposite. The diffraction patterns reveal an oriented crystalline structure within a layer of 9 μm away from the fiber surface. This layer is associated with the occurrence of a transcrystalline interphase. The crystal structure appearing at the different locations of the composite material is predominantly orthorhombic. However, a small amount of a monoclinic phase was found to appear at the fiber skin and within the transcrystalline layer. The azimuthal scans of the two-dimensional (2D) WAXS patterns obtained at different sites of the transcrystalline phase were studied to estimate the crystal unit cell directions at each diffracted point. Finally, an analysis of the integral breadth of the (110) and (200) orthorhombic reflections in the matrix, in the transcrystalline interphase, and in the fiber is reported. *Dedicated to Prof. Francisco J. Baltá Calleja on the occasion of his 65th birthday.