Počet záznamů: 1
Polyurethane foams based entirely on recycled polyols derived from natural oils
- 1.
SYSNO ASEP 0446887 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Polyurethane foams based entirely on recycled polyols derived from natural oils Tvůrce(i) Horák, Pavel (UMCH-V)
Beneš, Hynek (UMCH-V) RID, ORCIDZdroj.dok. Polimery - ISSN 0032-2725
Roč. 60, č. 9 (2015), s. 579-585Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. PL - Polsko Klíč. slova polyurethane foam ; recycled polyol ; rapeseed oil Vědní obor RIV CD - Makromolekulární chemie CEP FR-TI4/133 GA MPO - Ministerstvo průmyslu a obchodu Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000360031500007 DOI 10.14314/polimery.2015.579 Anotace Flexible polyurethane (PUR) foam was chemically recycled using two types of oleochemical polyols based on rapeseed oil and waste fish oil. The functional hydroxyl groups of the oleochemical polyols reacted with the urethane and the disubstituted urea structures of flexible PUR foam at temperatures around 200 °C. The liquid recycled polyols with hydroxyl numbers ca. 175 mg KOH/g were obtained after 2 h of the reaction. Only the recycled polyols without additional virgin polyols were used for the preparation of low density PUR foams. PUR foams with free rise density of 30 and 50 kg/m3 were prepared exhibiting semi-rigid character due to the presence of soft segments of fatty acid chains. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2016
Počet záznamů: 1