1.0CNEP Internationalhttps://www.cnep-fr.com/enRégis Berchethttps://www.cnep-fr.com/en/blog/author/regis/rich600338<blockquote class="wp-embedded-content" data-secret="tNuYzG4qhE"><a href="https://www.cnep-fr.com/en/our-techniques/">Our techniques</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.cnep-fr.com/en/our-techniques/embed/#?secret=tNuYzG4qhE" width="600" height="338" title="“Our techniques” — CNEP International" data-secret="tNuYzG4qhE" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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Here are some examples Ageings The CNEP positions itself as a cutting-edge research institution in the field of polymer science. Our expertise is based on a wide range of aging techniques aimed at exploring in depth the evolving properties of polymers. The aging of polymers is a complex process with significant impacts on their mechanical, thermal, electrical and optical characteristics over time. At CNEP, we employ cutting-edge methods such as natural aging, accelerated aging via climatic devices, UV radiation-induced aging, chemical aging, and many others. Each technique is meticulously selected based on the specific properties of the polymer studied and the environmental conditions to which it is exposed. This ensures the production of accurate data regarding the lifespan and operational properties of polymers, thereby meeting the highest standards of quality and effectiveness.Simultaneous permeability measurementsThe simultaneous measurement of permeabilities to carbon dioxide (CO2), nitrogen (N2) and oxygen (O2) is a crucial step in many scientific and industrial applications. The Lyssy device, developed for this specific task, offers a sophisticated and precise solution for assessing the permeability of materials to these essential gases. The Lyssy device is based on the gas diffusion method, also known as the mass diffusion method, which allows permeability rates to be measured as a function of time. This technique is based on Fick’s law, which states that the diffusion of a gas through a material is directly proportional to its permeability, the partial pressure of the gas and the thickness of the material. The Lyssy device works by exposing the material under test to controlled conditions of pressure and gas concentration. The significant advantage of the Lyssy device lies in its ability to perform simultaneous measurements of all three gases, thus providing a complete assessment of the material’s performance in terms of permeability. This is particularly valuable in areas such as food packaging, medical research and industrial applications where precise regulation of gas flows is crucial.Surface chipsA common method for collecting a small piece of material for analysis is to use a precision blade to carefully remove a splinter from the surface. This process provides a representative sample of material for spectroscopic analysis. Spectrometry is an advanced scientific technique used to measure the properties of matter and is often used to determine the state of evolution or degradation of a material on the surface. By subjecting the collected sample to infrared spectroscopy, we can obtain valuable information about the structure and chemical composition of the material. Consequently, sampling and spectroscopic analysis have become common and highly effective scientific tools for the CNEP.Micro-FTIR profilesThe process involves using a microtome to obtain a thin film of the slice of the part to be studied, then analyzing it in infrared spectra with a Fourier transform technique gradually throughout the depth. This procedure is useful for determining the degree and location of oxidation, gradual loss of additives, as well as colorants. In addition, this procedure makes it possible to locate any deterioration in the thickness of the material. The process is widely recognized for its ability to effectively quantify and locate defects and imperfections in the structure of the tested sample. The method is highly recommended for analytical examinations, including materials science research, quality control applications and manufacturing process optimization, where accurate determination of material properties during production is paramount. Ask us for a quote One of our experts will respond to you as soon as possible Clic here