Flame Retardant Intumescent Polyamide 11 Nanocomposites – Further Study

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Lao, S.C.
Koo, J. H.
Moon, T. J.
Yong, W.
Lam, C.
Zhou, J.
Hadisujoto, B.
Wissler, G.
Pilato, L.
Luo, Z. P.

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The objective of this research is to develop improved polyamide 11 and 12 polymers with enhanced flame retardancy, thermal, and mechanical properties for selective laser sintering (SLS) rapid manufacturing (RM). In the present study, a nanophase was introduced into the polyamide 11 and combine with a conventional intumescent flame retardant (FR) additive via twin screw extrusion. Arkema Rilsan® polyamide 11 molding polymer pellets were used with two types of nanoparticles such as: chemically modified montmorillonite (MMT) organoclays and carbon nanofibers (CNFs). Two types of Clariant’s Exolit® OP 1311 and 1312 intumescent FR additives were used to generate a family of FR intumescent polyamide 11 nanocomposites with anticipated synergism.


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