Polyethylene terephthalate, commonly coded as PET, PETE, is a thermoplastic polymer resin of the polyesters and is used in liquid containers, drinks, food and synthetic fibres....

The phase structure of PET and PET/Span-85 membrane samples was assessed by XRD analysis, and the obtained spectra are depicted in Fig. 7.

2007年8月1日 · Fully oriented, partially oriented, drawn, and quenched samples of poly (ethylene terephthalate) (PET) filaments were examined. Crystalline fraction and the average size of crystallites were measured by a wide angle X-ray scattering diffractometer. Sample geometry in X-ray diffraction was found to affect the intensity of the diffraction patterns.

2021年1月30日 · X-Ray Diffraction XRD method was used to identify six PET polymers samples collected from different dump sites around the city, they were washed crushed and characterised and x-ray diffraction (XRD) analysis was carried out on the samples for identification and the results were compared with literature.

A systematic study has been made on the behavior of Al/n-CdS thin film junction on flexible polymer substrate (polyethylene terephthalate, PET) grown using thermal evaporation method.

粉末X射线衍射 （PXRD）作为一种非破坏性分析技术，因其高效、准确和灵敏的特点，广泛应用于药物晶型的鉴定和分析。 PXRD通过测量X射线与药物粉末样品之间的衍射模式，能够提供关于晶体结构的详细信息。 本篇文章将深入探讨PXRD在药物晶型鉴定中的关键作用，同时，我们将介绍PXRD的工作原理及其在药物晶型分析中的应用实例，并向大家推荐我们的表征检测服务内容（薇：jia009077）。 1.什么是药物晶型？ 药物晶型是指药物分子在固态下的不同排列方式， …

PXRD准确度高，分辨能力强，可通过给出晶胞参数 (如原子间距离、双面夹角等)确定药物晶型与结构，可用于鉴别晶态与非晶态、混合物与化合物的定性分析。 在晶型定量应用中，每种相的各衍射线条d值 (晶面间距)和双面夹角也不变，但混合物中各物相之间的相对强度会随各相在混合物中的百分比含量而变化。 Alexander等于1948年首次提出了用于粉末混合物定量的基本参数，并推导了峰强度与样品中相应组分晶型含量的数学关系式，这奠定了该方法用于定量分析的理论基础 …

2025年1月4日 · To identify patterns in Powder X-ray Diffraction (PXRD) data, a neural network called the PXRD Feature Extractor (f PXRD) was developed, which is based on the BERT architecture. PXRD data are represented as curves with diffraction angles on the x-axis and intensities on the y-axis.

粉末X射线衍射（Powder X-ray Diffraction，简称PXRD）是一种非常常见和有用的材料表征方法，用于分析晶体的结构、组成和物理性质。 通过使用X射线来研究粉末样品的衍射图案，可以确定样品中晶体的晶格参数、晶胞结构、晶体品质等信息。 6.材料研究：PXRD可以用于分析金属、陶瓷、半导体等材料的晶格结构、晶体品质和晶体相变等性质。 7.药物研发：通过PXRD可以研究药物的晶型（crystal form）、结晶性能、晶体纯度和药效等关键信息。 8.地质学：PXRD用于分 …

2025年3月7日 · Powder X-ray diffraction (pXRD) experiments are a cornerstone for materials structure characterization. Despite their widespread application, analyzing pXRD diffractograms still presents a significant challenge to automation and a bottleneck in high-throughput discovery in self-driving labs.