Comprehensive study of the effect of composition on the flame-retardant activity of antimony oxide and halogenated hydrocarbons in thermoplastic polymers

✍ Scribed by F.K. Antia; P.J. Baldry; M.M. Hirschler

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 585 KB
• Volume: 18
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(82)90197-5

✦ Synopsis

Flame retardance has been studied in the systems (a) antimony (III) oxide and decabromobiphenyl in acrylonitrile-butadiene-styrene terpolymer (ABS) and (b) antimony (III) oxide and chlorinated paraffin in high-density polyethylene (HDPE). Values of limiting oxygen index for over 70 compositions in each system have been measured and fitted by fourth-order polynomials. The triangular plots of these polynomials show complexities of the systems which cannot be revealed by traditional methods. Optimum atomic ratios for this synergistic system were found to be higher than the commonly accepted value of 3: Br/Sb = 9 and CI/Sb = 6-7. ABS was found to be more amenable to flame retardance than HDPE; possible reasons are discussed. * 11 phr. ";" 25 phr. 67 phr.