Zobrazeno 1 - 10
of 52
pro vyhledávání: '"E. Nezbedova"'
Autor:
E. Nezbedova, J. Kucera
Publikováno v:
Polymers for Advanced Technologies. 18:112-116
Commercially available poly(propylene)(PP)(MOSTEN, MFR = 4 g/10 min) supplied by a Czech company Chemopetrol Litvinov and precipitated calcium carbonate (CaCO3) was used for this study. The CaCO3 particles were coated with surface agent improving the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad01ef301ceadbf252082056b7e8291f
https://doi.org/10.1002/pat.802
https://doi.org/10.1002/pat.802
Publikováno v:
Journal of Macromolecular Science, Part B. 41:657-669
The possibility of phase transformation toughening is demonstrated by the example of the β-modification isotactic polypropylene (β-iPP), which undergoes the β–α transformation (i.e., from hexagonal to monoclinic) during mechanical loading. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8e417badd27e0406439bafa4a48990d
https://doi.org/10.1081/mb-120013057
https://doi.org/10.1081/mb-120013057
Publikováno v:
Journal of Macromolecular Science, Part B. 41:711-723
Polypropylene (PP) is being used increasingly as a material for pressure pipes for distribution of hot and cold water. In these applications, the long-term performance and reliability are critical, key properties. The lifetime of PP is influenced by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e5b2bc06e1649d18164b8f8b2275261
https://doi.org/10.1081/mb-120013060
https://doi.org/10.1081/mb-120013060
Publikováno v:
Journal of Macromolecular Science, Part B. 40:507-515
Structural and morphological parameters, together with processing conditions, determine the type of fracture behavior of polyethylene (PE). Long-time brittle failure, which occurs under low stresses and at room temperature, limits the lifetime of pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06e1925b80a150701ee9f6bfb96b3dc9
https://doi.org/10.1081/mb-100106173
https://doi.org/10.1081/mb-100106173
Publikováno v:
Mechanics of Time-Dependent Materials. 5:67-78
Long-time brittle failure limits the lifetime of polyethylenepipes for water and gas distribution. The same type of failure wasobserved in single-edge-notched tensile specimens under plane strainconditions. The crack opening displacement (COD) was me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a856e7229d6a9e616244910664a0f447
https://doi.org/10.1023/a:1009847503096
https://doi.org/10.1023/a:1009847503096
Autor:
J. Fiebig, M. Gahleitner, Wolfgang Grellmann, S. Seidler, G. H. Michler, E. Nezbedova, J.U. Starke
Publikováno v:
Polymer. 39:75-82
A heterophasic reactor grade polypropylene-ethylene copolymer (RAHECO®) was diluted with a propylene-ethylene random copolymer to get materials with constant EPR/PE-particle diameter but various interparticle distances. According to the results of i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16bb26649ce3a6b818497e500c5b8e29
https://doi.org/10.1016/s0032-3861(97)00219-x
https://doi.org/10.1016/s0032-3861(97)00219-x
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Acta Polymerica. 41:36-42
The reasons for macroscopic changes of the toughness of isotactic polypropylene filled with different types of calcium carbonate are studied. The changes are analyzed on the basis of unnotched and notched impact strength, and on microscopic observati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98ce6167f083a8981d8015195d559365
https://doi.org/10.1002/actp.1990.010410109
https://doi.org/10.1002/actp.1990.010410109
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
J. Kucera, E. Nezbedova
Publikováno v:
Deformation und Bruchverhalten von Kunststoffen ISBN: 9783642637186
Die Lebensdauer von Rohren aus Polyethylen hangt in hohem Mase von der Struktur und Morphologie des Polymeren ab [1]. Der primare Parameter ist dabei die Struktur der Polymerkette, d.h. die Molmasse und die Molmassenverteilung, der Anteil, die Art un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b98fb746879ef8d2e88d63c76b81946e
https://doi.org/10.1007/978-3-642-58766-5_6
https://doi.org/10.1007/978-3-642-58766-5_6
