Study of thermal and morphological properties of a hybrid system, iPP/POSS. Effect of flame retardance

Research was carried out on the crystallization, morphology and flame retardance of isotactic polypropylene (iPP) composites with a polyhedral oligomeric silsesquioxane (POSS). Compounds were analyzed both with and without a coupling agent, maleic anhydride polypropylene (MAPP). This agent was used...

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Published in:Composites. Part B, Engineering Engineering, 2014-03, Vol.58, p.566-572
Main Authors: Bouza, Rebeca, Barral, Luis, Díez, Francisco J., López, Joaquín, Montero, Belén, Rico, Maite, Ramírez, Carmen
Format: Article
Language:English
Subjects:
A. Polyhedral oligomeric silsesquioxane (POSS)
A. Thermoplastic-resin
B. Physical properties
Coupling
Coupling agents
Crystallization
D. Thermal analysis
Diffraction
Hybrid systems
Polyhedral oligomeric silsesquioxane
Polypropylenes
X-rays
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cited_by cdi_FETCH-LOGICAL-c354t-5c04668abbdc6260d3dc4b3dd090ec9cb0e623940ec70f0dbd53e6e8cd45edd73
cites cdi_FETCH-LOGICAL-c354t-5c04668abbdc6260d3dc4b3dd090ec9cb0e623940ec70f0dbd53e6e8cd45edd73
container_end_page 572
container_issue
container_start_page 566
container_title Composites. Part B, Engineering
container_volume 58
creator Bouza, Rebeca
Barral, Luis
Díez, Francisco J.
López, Joaquín
Montero, Belén
Rico, Maite
Ramírez, Carmen
description Research was carried out on the crystallization, morphology and flame retardance of isotactic polypropylene (iPP) composites with a polyhedral oligomeric silsesquioxane (POSS). Compounds were analyzed both with and without a coupling agent, maleic anhydride polypropylene (MAPP). This agent was used to improve dispersion. It is used an aminopropylisobutyl POSS as modifier. When the crystallization was studied with DSC and X-ray diffraction, small amounts of POSS were revealed in the matrix and a nucleating effect was produced. The modulus value obtained by DMA shows that a higher amount of POSS (10%) is not necessarily beneficial. Thermal stability was analyzed by TGA. Flame retardancy was studied by means of LOI test. The results suggest that composite with better behaviour is the sample with 98% iPP and 2% amino-POSS and coupling with 10% MAPP (over the amount of iPP).
doi_str_mv 10.1016/j.compositesb.2013.11.010
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subjects A. Polyhedral oligomeric silsesquioxane (POSS)
A. Thermoplastic-resin
B. Physical properties
Coupling
Coupling agents
Crystallization
D. Thermal analysis
Diffraction
Hybrid systems
Polyhedral oligomeric silsesquioxane
Polypropylenes
X-rays
title Study of thermal and morphological properties of a hybrid system, iPP/POSS. Effect of flame retardance
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