Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Production of Bio-based Polyol from Coconut Fatty Acid Distillate (CFAD) and Crude Glycerol for Rigid Polyurethane Foam Applications

Ma. Louella D. Salcedo
,
Christine Joy M. Omisol
ORCID logo ,
Anthony O. Maputi
,
Dave Joseph E. Estrada
ORCID logo ,
Blessy Joy M. Aguinid
,
Dan Michael A. Asequia
,
Daisy Jane D. Erjeno
,
Glenn Apostol
,
Henry Siy
,
Roberto M. Malaluan
,
Arnold C. Alguno
ORCID logo ,
Gerard G. Dumancas
ORCID logo ,
Arnold A. Lubguban
* ORCID logo
Version 1 : Received: 24 June 2023 / Approved: 25 June 2023 / Online: 25 June 2023 (05:41:11 CEST)

A peer-reviewed article of this Preprint also exists.

Salcedo, M.L.D.; Omisol, C.J.M.; Maputi, A.O.; Estrada, D.J.E.; Aguinid, B.J.M.; Asequia, D.M.A.; Erjeno, D.J.D.; Apostol, G.; Siy, H.; Malaluan, R.M.; Alguno, A.C.; Dumancas, G.G.; Lubguban, A.A. Production of Bio-Based Polyol from Coconut Fatty Acid Distillate (CFAD) and Crude Glycerol for Rigid Polyurethane Foam Applications. Materials 2023, 16, 5453. Salcedo, M.L.D.; Omisol, C.J.M.; Maputi, A.O.; Estrada, D.J.E.; Aguinid, B.J.M.; Asequia, D.M.A.; Erjeno, D.J.D.; Apostol, G.; Siy, H.; Malaluan, R.M.; Alguno, A.C.; Dumancas, G.G.; Lubguban, A.A. Production of Bio-Based Polyol from Coconut Fatty Acid Distillate (CFAD) and Crude Glycerol for Rigid Polyurethane Foam Applications. Materials 2023, 16, 5453.

Abstract

This study propounds a sustainable alternative to petroleum-based polyurethane (PU) foams aiming to curtail this nonrenewable resource's continued and uncontrolled use. Coconut fatty acid distillate (CFAD) and crude glycerol (CG), both wastes from vegetable oil processes, were utilized for bio-based polyol production for rigid PU foam application. The raw materials were subjected to catalyzed glycerolysis with alkaline-alcohol neutralization and bleaching. The resulting polyol possessed properties suitable for rigid foam application with an average OH number of 215 mg KOH/g, acid number of 7.2983 mg KOH/g, and Gardner color value of 18. The polyol was used to prepare rigid PU foam, and its properties were determined using FTIR, TGA/DTA, and UTM. Additionally, the cell foam morphology was investigated by scanning electron microscope (SEM) in which most of its structure revealed an open-celled network and quantified at 92.71% open cell content using pycnometric testing. The PU foam thermal and mechanical analysis results showed an average compressive strength of 70.59 kPa, thermal conductivity of 46.50 mWm-1K-1, and density of 32.79 kgm-3. These properties showed its applicability as thermal insulating foam, thus, demonstrating the potential use of CFAD and CG in commercial polyol and PU foam production.

Keywords

coconut fatty acid distillate; rigid polyurethane foam; bio-based polyols; high open-cell content foam; thermal insulating material

Subject

Chemistry and Materials Science, Polymers and Plastics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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