The role of phosphate ester as a fire retardant in the palm-based rigid polyurethane foam

Nor Rabbi atul Adawiyah Norzali, Khairiah Badri

Research output: Contribution to journalArticle

Abstract

Palm-based polyurethane containing phosphate ester (PE) as fire retardant has been developed. This study was conducted to investigate the effect of PE inclusion into palm-based polyurethane (PU) system onto the mechanical and burning property of the PU. The PE was synthesized via ring-opening hydrolysis between phosphoric acid (H3PO4) and epoxy. The synthesis was conducted at 60-70 °C with varying concentration of H3PO4 at 2.5, 5.0 and 7.5 wt.%. It was then added into the PU system at 0, 5, 10 and 15 wt.%. Density of the PU foam was in the range of 45-50 kgm-3. PE increased the compression strength and modulus of the PU. The highest compression stress (1441 kPa) and modulus (7733 kPa) were discovered with the addition of 10 wt.% PE. Burning properties showed that the addition of PE has decreased the burning rate of the PU foam. PU with PE synthesized from 5.0 wt.% H3PO4 showed excellent burning properties with the lowest burning rate (0.047 cms-1) compared to control PU which was at 0.119 cms-1.

Original languageEnglish
Pages (from-to)711-718
Number of pages8
JournalPolymers and Polymer Composites
Volume24
Issue number9
Publication statusPublished - 2016

Fingerprint

Flame Retardants
Polyurethanes
Flame retardants
Foams
Esters
Phosphates
polyurethane foam
Hydrolysis
Phosphoric acid

Keywords

  • Epoxidized palm kernel oil
  • Palm-based polyol
  • Phosphate ester
  • Phosphorus fire retardant
  • Polyurethane

ASJC Scopus subject areas

  • Ceramics and Composites
  • Polymers and Plastics
  • Materials Chemistry

Cite this

The role of phosphate ester as a fire retardant in the palm-based rigid polyurethane foam. / Norzali, Nor Rabbi atul Adawiyah; Badri, Khairiah.

In: Polymers and Polymer Composites, Vol. 24, No. 9, 2016, p. 711-718.

Research output: Contribution to journalArticle

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