Green waste cooking oil-based rigid polyurethane foam

[摘要] Polyurethane is a versatile polymer traditionally prepared using petroleum-based raw material. Petroleum, however, is a non-renewable material and polyurethane produced was found to be non-biodegradable. In quest for a more environmentally friendly alternative, wastecooking oil, a highly abundant domestic waste with easily derivatized structure, is a viable candidate to replace petroleum. In this study,an investigation to determine physical and chemical properties of rigid polyurethane (PU) foam from waste cooking oil (WCO) was carried out. WCO was first adsorbed by using coconut husk activated carbon adsorbent prior to be used for polyol synthesis. The purified WCO was then used to synthesize polyol via transesterification reaction to yield alcohol groups in the WCO chains structure. Finally, the WCO-based polyol was used to prepare rigid PU foam. The optimum formulation for PU formation was found to be 90 polyol: 60 glycerol: 54 water: 40 diethanolamine: 23 diisocyanate. The rigid PU foam has density of 208.4 kg/m3with maximum compressive strength and capability to receive load at 0.03 MPa and 0.09 kN, respectively. WCO-based PU can potentially be used to replace petroleum-based PU as house construction materials such as insulation panels.

[发布机构] Faculty of Applied Sciences, Universiti Teknologi MARA, Bandar Tun Abdul Razak Jengka, Pahang; 26400, Malaysia^1

[效力级别] 土木建筑工程

[关键词] Coconut husk activated carbon;Environmentally friendly alternatives;Maximum compressive strengths;Optimum formulation;Physical and chemical properties;Polyurethane foams;Rigid polyurethane foams;Transesterification reaction