Počet záznamů: 1

Preparation and characterization of polyurethane - Fe powder composites

  1. 1.
    0367643 - UMCH-V 2012 RIV SK eng J - Článek v odborném periodiku
    Špírková, Milena - Bureš, R. - Fáberová, M. - Trchová, Miroslava - Strachota, Adam - Kaprálková, Ludmila
    Preparation and characterization of polyurethane - Fe powder composites.
    Powder Metallurgy Progress. Roč. 11, 3/4 (2011), s. 290-299 ISSN 1335-8987
    Grant CEP: GA ČR GAP108/10/0195
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: polyurethanes * polybutadiene diol * Fe powder
    Kód oboru RIV: CD - Makromolekulární chemie
    http://www.imr.saske.sk/pmp/issue/3-4-2011/PMP_Vol11_No3-4_p_290-299.pdf http://www.imr.saske.sk/pmp/issue/3-4-2011/PMP_Vol11_No3-4_p_290-299.pdf

    A series of organic-inorganic composites in the form of films was prepared. The organic polymeric matrix was formed from the commercial product KRASOL LBH P (linear liquid polybutadiene terminated with primary hydroxyl groups), aliphatic diisocyanate (1,6-hexamethylenediisocyanate), and 1,4-butanediol. Powder iron (ASC 100.29) of micrometre size formed the inorganic part of the composite (5 to 80 wt. %). It was found that Fe content considerably influences mechanical, thermomechanical and surface properties, as detected by tensile tests, dynamic mechanical thermal analysis and hardness measurements. While pure organic matrix is typical elastomeric, qualitative different mechanical properties were found for composites containing more than 30 % of Fe. Bimodal character of Fe area fraction, hardness and resistivity vs. Fe content dependences was found.
    Trvalý link: http://hdl.handle.net/11104/0202239