TY  - EJOU
AU  - Prociak, Aleksander 
AU  - Malewska, Elźbieta 
AU  - Bąk, Szymon 

TI  - Influence of Isocyanate Index on Selected Properties of Flexible Polyurethane Foams Modified with Various Bio-Components
T2  - Journal of Renewable Materials

PY  - 2016
VL  - 4
IS  - 1
SN  - 2164-6341

AB  - In this article, the results of the foaming process analysis of fl exible polyurethane with different isocyanate indexes are presented. Two types of flexible polyurethane foams (FPURF) were obtained: (1) by using petrochemical components and a rapeseed-oil-based polyol (used in the amount of 20 wt%), (2) by using petrochemical components and cellulose as a natural fi ller in the amount of 3 php (per hundred parts of polyol). The characteristic parameters of the foaming process, such as the foam’s growth velocity, the core temperature and dielectric polarization, were measured using a Foamat device. Moreover, the following properties of flexible polyurethane foams were determined: apparent density, resilience, compressive strength, hardness, hysteresis and support factor, in order to determine the infl uence of isocyanate index on selected properties of the foams modified with bio-polyol and bio-filler.
KW  - Flexible polyurethane foam
KW  -  bio-polyols
KW  -  natural filler
KW  -  foaming process
KW  -  mechanical properties
KW  -  isocyanate index

DO  - 10.7569/JRM.2015.634129