Polyols from Microwave Liquefied Bagasse and Its Application to Rigid Polyurethane Foam
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چکیده
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Polyols from Microwave Liquefied Bagasse and Its Application to Rigid Polyurethane Foam
Bagasse flour (BF) was liquefied using bi-component polyhydric alcohol (PA) as a solvent and phosphoric acid as a catalyst in a microwave reactor. The effect of BF to solvent ratio and reaction temperatures on the liquefaction extent and characteristics of liquefied products were evaluated. The results revealed that almost 75% of the raw bagasse was converted into liquid products within 9 min a...
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Lignin-based polyols were synthesized through microwave-assisted liquefaction under different microwave heating times (5-30 min). The liquefaction reactions were carried out using polyethylene glycol (PEG-400)/glycerol as liquefying solvents and 97 wt% sulfur acid as a catalyst at 140 °C. The polyols obtained were analyzed for their yield, composition and structural characteristics using gel pe...
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Comparing to the conventional bath heating, the effects of liquefaction parameters on the degree of liquefaction of wood in polyhydric alcohols by using microwave as an energy source were evaluated. Polyurethane foams were successfully prepared from the liquefied biomass-based polyols. The effects of heating methods (conventional bath heating and microwave) and liquefaction reaction time on the...
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Chemical Engineering, School of Engineering and Information Technology, Universiti Malaysia Sabah, UMS Road, 88400 Kota Kinabalu, Sabah, Malaysia *School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia **School of Dental Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia ***Malaysian Institute Pharmaceutical & Nutraceutical, MOSTI...
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ژورنال
عنوان ژورنال: Materials
سال: 2015
ISSN: 1996-1944
DOI: 10.3390/ma8125472