A systematic study substituting polyether polyol with palm kernel oil based polyester polyol in rigid polyurethane foam

Structure, Mechanical, Thermal and Fire Behavior Assessments of Environmentally Friendly Crude Glycerol-Based Rigid Polyisocyanurate Foams

“…Incorporation of crude glycerol-based polyol resulted in noticeable increase of the temperature related to the onset of thermal degradation, which can be related to the decrease of the amount of easily volatilized products [55]. No deterioration of thermal stability, often related to the incorporation of bio-based materials into polyurethane foams, was observed [56]. Next step of degradation (T max 1 ), associated with the 5 wt% mass loss was related to the thermal decomposition of TCCP used during synthesis (decomposes at 244 °C), value of mass loss corresponds with the amount of TCPP added to polyol mixture.…”

Sound Absorption Properties of Polyurethane Foams Derived From Waste Cooking Oil Incorporated With Waste Wood Fiber Filler

“…PUs is commonly used as sound absorbing materials and the suitability of renewable feedstocks (WCOs polyols from biomass) for the production of foams has been reported [18,4]. In the present studies, the relationship between the porosity of PU derived from WCOs incorporated with Red Meranti fiber with their sound absorption coefficient values is discussed.…”

“…Hence, this kind of materials is commonly used in thermal insulation and as structural materials [18] Nevertheless, in spite of their porous structure, their use as sound absorbers has not received much consideration when compared to flexible foams. The last is known to have great sound absorption properties due to the channels, interstices, or cavities exhibit in their structure.…”

The Mechanical Properties of Medium Density Rigid Polyurethane Biofoam

“…There has been an interest to find alternative sources for raw materials to be used in the production of polyols. A number of researchers have investigated the possibilities at converting vegetable oil into polyols for polyurethane foams [2,3]. Much attention is paid to introducing plant resources into polyurethane foam production.…”