Peek material properties evaporate12/5/2023 We consider, as an example, the industrially important polymer, polyether ether ketone ( PEEK), and show that this coarse graining technique maintains excellent agreement with the fully flexible all-atom and all-atom rigid bond models whilst allowing the time step to increase fivefold to 5 fs. We present a systematic approach to removing such high-frequency oscillations from planar groups along aromatic polymer backbones, while preserving the dynamical properties of the system. Sutton, Adrian P.įor aromatic polymers, the out-of-plane oscillations of aromatic groups limit the maximum accessible time step in a molecular dynamics simulation. 5 figs., 5 tabs.Īccelerated simulations of aromatic polymers: application to polyether ether ketone ( PEEK)īroadbent, Richard J. In the application of PEEK film, new development is expected in following fields a high performance composite, flexible print substrate with high thermal resistance, insulating tape with thermal resistance, and a general film in the nuclear energy industry. The general properties of PEEK film are excellent in high thermal resistance, good electrical properties, chemical resistance, hydrolysis resistance, radiation resistance and imcombusti-bility. As for the film making process, casting method by T-die is generally adopted. The characteristics of PEEK resin are found in thermal resistance, incombusti-bility, transparency, chemical resistance, light resistance and radiation resistance. Though it is a crystalline polymer of which the crystallinity is controlled to 48% in a highest degree, it has also amorphous property, thus it shows unique property. PEEK is aromatic polyketone with super thermal resistance. The characteristics and the film making process of polyether ether ketone ( PEEK) resin, and the characteristics and the applications of PEEK film, are described. Polyether ether ketone filmĮnergy Technology Data Exchange (ETDEWEB) A brief description of the experimental method is also given. Accompanied data for each test include the fatigue life, the maximum (peak) and minimum (valley) stress-strain responses for each cycle, and the hysteresis stress-strain responses for each collected cycle in a logarithmic increment. The data are categorized into four subsets according to the type of tests, including (1) strain-controlled fatigue tests with adjusted frequency to obtain the nominal temperature rise of the specimen surface, (2) strain-controlled fatigue tests with various frequencies, (3) load-controlled fatigue tests without step loadings, and (4) load-controlled fatigue tests with step loadings. The tests were performed in either strain-controlled or load-controlled mode under various levels of loading. In this article, the data obtained from the uniaxial fully-reversed fatigue experiments conducted on polyether ether ketone ( PEEK), a semi-crystalline thermoplastic, are presented. Shrestha, Rakish Simsiriwong, Jutima Shamsaei, Nima (author)įatigue data for polyether ether ketone ( PEEK) under fully-reversed cyclic loading. The oxygen content resulting from irradiation, of semicrystalline PEEK increased more than that of amorphous PEEK. Some comparison was made between the semicrystalline and amorphous samples. Quantitative spectral analysis indicated that the aromatic structure might be decomposed. Carboxyl groups were not produced in helium gas. The irradiation in air was found to oxidize the PEEK surface producing carboxyl groups, the content of which dependant on the dose. In this paper, the surface of electron-irradiated poly-ether ether ketone ( PEEK) was studied by X-ray photoelectron spectroscopy (XPS). Radicals produced by irradiation cause oxidation, chain scission and crosslinking, all of which lead to degradation of the material. Organic polymers used in atomic power plants or space are damaged by ionizing irradiation. Oyabu, Matashige Kobayashi, Yoshinori Seguchi, Tadao Sasuga, Tsuneo Kudoh, Hisaaki. International Nuclear Information System (INIS) Analysis of electron-irradiated poly-ether ether ketone by X-ray photoelectron spectroscopy
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |