Influence of modified mesoporous silica SBA-15 on the flammability of intumescent high-density polyethylene

This work aims to investigate the fire retardant properties of a novel type of high‐density polyethylene composites. Our intumescent system consists in using classical flame retardants such as ammonium polyphosphate, pentaerythritol in combination with porous mesostructured silica (SBA‐15) fillers....

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Bibliographic Details
Published in:Polymers for advanced technologies 2016-10, Vol.27 (10), p.1363-1375
Main Authors: Matar, M., Azambre, B., Cochez, M., Vahabi, H., Fradet, F.
Format: Article
Language:English
Subjects:
Calorimetry
Combustion
Condensed Matter
flame retardant
Flame retardants
Flammability
functionalization
High density
high-density polyethylene (HDPE)
Intumescent
LOI
Materials Science
nanostructured materials
Physics
Polyethylenes
Silicon dioxide
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Summary:This work aims to investigate the fire retardant properties of a novel type of high‐density polyethylene composites. Our intumescent system consists in using classical flame retardants such as ammonium polyphosphate, pentaerythritol in combination with porous mesostructured silica (SBA‐15) fillers. Prior to use, SBA‐15 was chemically modified using different organic and inorganic grafts in order to obtain some specific properties, such as an improved compatibility with the polymer, or different types of surface acidity in order to increase charring reactions. Limiting oxygen index, UL‐94, pyrolysis flow combustion calorimetry and thermogravimetric analysis were used to assess the burning behavior and thermal stability, respectively, of the processed composites. By keeping the total amount of additives always equal to 25 wt%, the better flammability characteristics were in general obtained at low SBA‐15 loadings (
ISSN:1042-7147
1099-1581
DOI:10.1002/pat.3805