2015
DOI: 10.14314/polimery.2015.551
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Effect of the content of rigid segments on the properties of polycarbonate urethanes for use in intervertebral disc implants

Abstract: Otrzymano seriê poli(wêglanouretanów), o zawartooeci 30, 34 i 45 % mas. segmentów sztywnych, z diizocyjanianu 4,4'-dicykloheksylometanu (HMDI) i oligowêglanodiolu. Scharakteryzowano w³aoeciwooeci oraz strukturê wytworzonych poli(wêglanouretanów) za pomoc¹ spektroskopii w podczerwieni FT-IR, ró¿nicowej kalorymetrii skaningowej (DSC), analizy dynamicznych w³aoeciwooeci mechanicznych (DMA), analizy termograwimetrycznej (TGA) oraz skaningowej mikroskopii elektronowej (SEM). Oceniono równie¿ w³aoeciwooeci wytrzyma³… Show more

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“…The tribological pair contained a pin made of a material under test and the counter-sample was represented by a steel disk. On the basis of preliminary studies and reports in the literature, the following parameters of tribological tests were assumed: linear friction velocity v = 0.1 m/s, the diameter of the end face of the sample φ = 3 mm, pressure 2 MPa, time t = 1 h [32]. The results were averaged from three measurements for each PUUR.…”
Section: Experimental Methodsmentioning
confidence: 99%
“…The tribological pair contained a pin made of a material under test and the counter-sample was represented by a steel disk. On the basis of preliminary studies and reports in the literature, the following parameters of tribological tests were assumed: linear friction velocity v = 0.1 m/s, the diameter of the end face of the sample φ = 3 mm, pressure 2 MPa, time t = 1 h [32]. The results were averaged from three measurements for each PUUR.…”
Section: Experimental Methodsmentioning
confidence: 99%