Flame retardancy and mechanical properties of pet-based composites containing phosphorus and boron-based additives

Kilinc M., ÇAKAL G. Ö., BAYRAM G., Eroglu I., ÖZKAR S.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.132, no.22, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 132 Issue: 22
  • Publication Date: 2015
  • Doi Number: 10.1002/app.42016
  • Journal Name: JOURNAL OF APPLIED POLYMER SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: composites, flame retardancy, mechanical properties, PET, smoke density, ZINC BORATE, TRIPHENYL PHOSPHATE, OXIDE COMPOSITIONS, RECYCLED PET, FIRE, POLY(ETHYLENE-TEREPHTHALATE), NANOCOMPOSITES, POLYESTER, BEHAVIOR, BLENDS
  • Middle East Technical University Affiliated: Yes

Abstract

Flame retardancy of poly(ethylene terephthalate), PET, was improved using different flame retardant additives such as triphenylphosphate, triphenylphosphine oxide, zinc borate, and boron phosphate (BP). Composites were prepared using a twin screw extruder and subsequently injection molded for characterization purposes. The flame retardancy of the composites was determined by the limiting oxygen index (LOI) test. Smoke emission during fire was also evaluated in terms of percent light transmittance. Thermal stability and tensile properties of PET-based composites were compared with PET through TGA and tensile test, respectively. The LOI of the flame retardant composites increased from 21% of neat PET, up to 36% with the addition of 5% BP and 5% triphenyl phosphate to the matrix. Regarding the smoke density analysis, BP was determined as an effective smoke suppressant for PET. Enhanced tensile properties were obtained for the flame retardant PET-based composites with respect to PET. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42016.