
Deformation capability of poly(tetrafluoroethylene) materials ...
2022年9月1日 · We elucidated that the deformation capability of poly (tetrafluoroethylene) (PTFE) can be evaluated via X-ray diffraction (XRD) measurements. In the forming process of PTFE, deformation capability is a key to obtain superior stuffs. The deformation of PTFE materials stems from dislocations in the crystalline domains.
X-ray diffraction patterns of PTFE specimens.
The results of the study are supported by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR) analysis, and differential scanning calorimetry (DSC).
The effect of polytetrafluoroethylene particle size on the …
2021年3月24日 · X-ray diffraction (XRD) XRD patterns of samples were obtained by X-ray diffractometer (XRD, Bruker D8, Germany) using CuKa radiation (40 kV and 20 mA) over a range...
Phase transition behavior and deformation mechanism of ...
The deformation mechanism and phase transition behavior of polytetrafluoroethylene (PTFE) under stretching conditions (25, 50, 100 °C) were investigated by using differential scanning calorimetry (DSC), small angle X-ray scattering (SAXS), and X-ray diffraction (XRD). Compared to the unstretched PTFE samples, stretching at all temperatures ...
聚(四氟乙烯)材料的变形能力:用 X 射线衍射测量估计,Polymer …
为了正确管理聚(四氟乙烯)(PTFE)的形成过程,我们尝试通过 X 射线衍射(XRD)测量来追求晶体学特性,并阐明 PTFE 材料的变形能力可以通过 XRD 测量来评估。 由于其独特的实用特性,PTFE 已成为各个行业中最重要的聚合物之一。 虽然 PTFE 被归类为热塑性聚合物,但热塑性聚合物的通常成型方法不适用于 PTFE。 为了制造材料,将 PTFE 颗粒成型为所需的形状,然后进行烧结。 在成型过程中,PTFE颗粒的变形能力(延展性)是获得致密和刚体的关键。 变形能力 …
X-ray powder diffraction study of polytetrafluoroethylene
2010年9月5日 · Samples of polytetrafluoroethylene were studied by X-ray diffraction. A quantitative X-ray powder diffraction analysis of three components of the polymer was performed for the first time. All samples of polytetrafluoroethylene were found to be three-phase and consist of one crystalline and two amorphous phases.
聚四氟乙烯的xrd峰 - 百度文库
x射线衍射(xrd)是一种用于研究材料晶体结构和相变行为的重要手段。当x射线照射到材料上时,会与晶体中的原子相互作用,产生衍射现象。通过测量衍射角度和强度,可以推断出晶体的结构和相变行为。在分析ptfe的xrd峰时,通常采用以下步骤:
Structure of Polytetrafluoroethylene Modified by the Combined …
2021年10月25日 · It has been established by X-ray diffraction (XRD) analysis that the thermal-radiation modification of PTFE leads to an increase in the interplanar spacings, the degree of crystallinity and the volume of the unit cell, as well as to a decrease in the size of crystals and the X-ray density of the crystalline phase in comparison with the initial ...
XRD pattern of (a) neat PTFE and (b) after laser annealing of PTFE.
In the XRD pattern of PPy@carbon layer, the intense peak at ⁓18 • can be ascribed to the (100) plane of PTFE (PDF #54-1595), which appears as a sharp peak due to the low thickness of the ...
Functional properties of poly(tetrafluoroethylene) (PTFE) …
2018年4月5日 · X-ray diffraction (XRD) X-ray diffraction studies were performed in order to identify the structure of PTFE. The XRD curves of virgin and irradiated specimen can be found in Fig. 3 .