Journal
COMPOSITES PART B-ENGINEERING
Volume 56, Issue -, Pages 249-253Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2013.08.012
Keywords
Polymer matrix composites; Thermal properties; Mechanical properties; Flame retardants
Funding
- Suranaree University of Technology
- National Research Council of Thailand (NRCT)
- Center of Excellence on Petrochemical and Materials Technology
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A flame retardant efficiency of flame retardants; ammonium polyphosphate (APP), magnesium hydroxide (Mg(OH)(2)), zinc borate (Zb), and combination of APP with Mg(OH)(2) and Zb in sisal fiber/polypropylene (PP) composites was investigated using a horizontal burning test and a vertical burning test. In addition, maleic anhydride grafted polypropylene (MAPP) was used as a compatibilizer to enhance the compatibility in the system; i.e. PP-fiber and PP-flame retardants. Thermal, mechanical, and morphological properties of the PP composites were also studied. Adding the flame retardants resulted in improved flame retardancy and thermal stability of the PP composites without deterioration of their mechanical properties. APP and combination of APP with Zb effectively enhanced flame retardancy of the PP composites. No synergistic effect was observed when APP was used in combination with Mg(OH)(2). SEM micrographs of PP composites revealed good distribution of flame retardants in PP matrix and good adhesion between sisal fiber and PP matrix. (C) 2013 Elsevier Ltd. All rights reserved.
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