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CNEP is a research center for durability prediction and failures analysis of plastics (polymer) materials. The increasing use of plastics in daily life and for high tech applications points out the necessity to improve their reliability. These materials can eventually fail during their service life and it is crucial to be able, like in medicine, to diagnose the cause of the failure and to suggest solutions to solve the problem. Plastic materials〔including nanocomposite and composite materials with polymer matrix 〕 are made of polymer mostly associated with “formulation” products allowing to adjust their basic properties to special use they are made for (fillers, pigments, additives. .. ). In case of failure, a decisive action is to perform the physicochemical analysis of the defect and eventually (in case of suspicion of oxidation products) to perform adapted artificial or natural ageings allowing the evaluation of their long term behaviour. ==CNEP : a research centre for evaluation of polymer failures== (French) National Centre for the Evaluation of Photoprotection (CNEP)() is a subsidiary company of University Blaise Pascal () created in 1986 by Professor Jacques Lemaire, former head of Laboratory of Molecular and Macromolecular Photochemistry ()(LPMM) - Clermont-Ferrand (France). Initially the goal was to transfer the expertise of LPMM on polymer photoageing to industrial companies facing increasing problems of degradation (yellowing – bleaching - physical properties loss … ). CNEP is today still associated with LPMM but also with many small, medium and world size companies working in various domains of polymer applications.〔transports, aeroronautics, energy, building, agriculture, sports & leisures, electronics/electricity, electrical appliances,medical, packaging… 〕 More of 500 failure cases are examined each year by CNEP and expertise on the last twenty years is covering more of 100.000 different polymer formulations. Progressively with the development of sophisticated analytical tools, CNEP was extending its activity to the direct physicochemical analysis of any failure in polymer material, not only derived from ageing (polymer degradation). All researches are made under contract with a confidentiality agreement. Since 10 years CNEP is certified by the French Ministries of Higher Education and Industry as ''National Centre for Technical Research''(CRT). Its contact with the complete chain of plastic production allows CNEP to play also an interfacial role between polymer producers, transformers and constructors bringing : - 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「National Centre for the Evaluation of Photoprotection」の詳細全文を読む スポンサード リンク
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