Abstract
A diol-based refined, bleached, and deodorized (RBD) palm kernel oil polyol was prepared. It was found that the polyurethane foam produced only gives a good compressive strength property at a 45 kg/m 3 molded density. The combination of sorbitol into the polyol system resulted in a better dimensional stability and improved thermal conductivity as well as enhanced compressive strength. These were obtained by increasing the functionality of the polyol (functionality of 4.5) through introduction of a high molecular weight and branching polyhidric compound. Direct polycondensation and transesterification methods were used for the syntheses. The hydroxyl value, TLC, and FTIR were used to study the completion of the reaction. A comparative study of the mechanical properties and morphological behavior was carried out with a diol-based polyol. From the water-blown molded foam (zero ODP) with a density of about 44.2 kg/m 3 and a closed-cell content of 93%, a compressive strength of 222 kPa and a dimensional stability of 0.09, 0.10, and 0.12% at the length, width, and thickness of the foam, respectively, conditioned at -15°C for 24 h, were obtained. The thermal conductivity improved to an initial value of 0.00198 W/mK, tested at 0°C.
| Original language | English |
|---|---|
| Pages (from-to) | 384-389 |
| Number of pages | 6 |
| Journal | Journal of Applied Polymer Science |
| Volume | 81 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 11 Jul 2001 |
Fingerprint
Keywords
- Compressive strength
- Dimensional stability
- High-functionality polyester
- Sorbitol
- Zero ODP
ASJC Scopus subject areas
- Polymers and Plastics
Cite this
Production of a high-functionality RBD palm kernel oil-based polyester polyol. / Badri, Khairiah; Ahmad, Sahrim; Zakaria, Sarani.
In: Journal of Applied Polymer Science, Vol. 81, No. 2, 11.07.2001, p. 384-389.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Production of a high-functionality RBD palm kernel oil-based polyester polyol
AU - Badri, Khairiah
AU - Ahmad, Sahrim
AU - Zakaria, Sarani
PY - 2001/7/11
Y1 - 2001/7/11
N2 - A diol-based refined, bleached, and deodorized (RBD) palm kernel oil polyol was prepared. It was found that the polyurethane foam produced only gives a good compressive strength property at a 45 kg/m 3 molded density. The combination of sorbitol into the polyol system resulted in a better dimensional stability and improved thermal conductivity as well as enhanced compressive strength. These were obtained by increasing the functionality of the polyol (functionality of 4.5) through introduction of a high molecular weight and branching polyhidric compound. Direct polycondensation and transesterification methods were used for the syntheses. The hydroxyl value, TLC, and FTIR were used to study the completion of the reaction. A comparative study of the mechanical properties and morphological behavior was carried out with a diol-based polyol. From the water-blown molded foam (zero ODP) with a density of about 44.2 kg/m 3 and a closed-cell content of 93%, a compressive strength of 222 kPa and a dimensional stability of 0.09, 0.10, and 0.12% at the length, width, and thickness of the foam, respectively, conditioned at -15°C for 24 h, were obtained. The thermal conductivity improved to an initial value of 0.00198 W/mK, tested at 0°C.
AB - A diol-based refined, bleached, and deodorized (RBD) palm kernel oil polyol was prepared. It was found that the polyurethane foam produced only gives a good compressive strength property at a 45 kg/m 3 molded density. The combination of sorbitol into the polyol system resulted in a better dimensional stability and improved thermal conductivity as well as enhanced compressive strength. These were obtained by increasing the functionality of the polyol (functionality of 4.5) through introduction of a high molecular weight and branching polyhidric compound. Direct polycondensation and transesterification methods were used for the syntheses. The hydroxyl value, TLC, and FTIR were used to study the completion of the reaction. A comparative study of the mechanical properties and morphological behavior was carried out with a diol-based polyol. From the water-blown molded foam (zero ODP) with a density of about 44.2 kg/m 3 and a closed-cell content of 93%, a compressive strength of 222 kPa and a dimensional stability of 0.09, 0.10, and 0.12% at the length, width, and thickness of the foam, respectively, conditioned at -15°C for 24 h, were obtained. The thermal conductivity improved to an initial value of 0.00198 W/mK, tested at 0°C.
KW - Compressive strength
KW - Dimensional stability
KW - High-functionality polyester
KW - Sorbitol
KW - Zero ODP
UR - http://www.scopus.com/inward/record.url?scp=0035845044&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035845044&partnerID=8YFLogxK
U2 - 10.1002/app.1449
DO - 10.1002/app.1449
M3 - Article
VL - 81
SP - 384
EP - 389
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 2
ER -