Thermo-mechanical properties of Polyamide 6 chemically modified by chain extension with Polyamide/Polycarbonate blend.

A Polycarbonate/Polyamide (PCPA) blend was used as chain extender in a melt compounding process with a Polyamide 6 (PA6), by using a twin screw extruder. The chain extension capability of the PCPA blend was evaluated through rheological, thermal and mechanical tests. Rheological tests on the compounded pellets and relative viscosity measurements on solubilized samples evidenced an increase of the viscosity values with the chain-extender amount and with the high temperature residence time. Terminal group analysis confirmed the increase of the molecular weight with the PCPA content and highlighted a preferential reactivity of the chain extender with amminic end groups. DSC tests showed a slight crystallinity decrease with the PCPA content, while both melting and crystallization temperatures were unaffected. Elastic and yield properties of chain-extended PA6 were similar to that of neat PA6 at differentmolecular weights,while crystallinity drop due to chain extension produced an increase of the strain at break values.

Thermo-mechanical properties of Polyamide 6 chemically modified by chain extension with Polyamide/Polycarbonate blend / Buccella, Mauro; Dorigato, Andrea; E., Pasqualini; M., Caldara; Fambri, Luca. - In: JOURNAL OF POLYMER RESEARCH. - ISSN 1022-9760. - STAMPA. - 19:8(2012), pp. 9935-9943.



Titolo: Thermo-mechanical properties of Polyamide 6 chemically modified by chain extension with Polyamide/Polycarbonate blend.
Autori: Buccella, Mauro; Dorigato, Andrea; E., Pasqualini; M., Caldara; Fambri, Luca
Autori Unitn: 
Buccella, Mauro
Dorigato, Andrea
Fambri, Luca
mostra contributor esterni 
Titolo del periodico: JOURNAL OF POLYMER RESEARCH
Anno di pubblicazione: 2012
Numero e parte del fascicolo: 8
Codice identificativo Scopus: 2-s2.0-84863756760
Codice identificativo ISI: WOS:000307293100014
Digital Object Identifier (DOI): http://dx.doi.org/10.1007/s10965-012-9935-0
Handle: http://hdl.handle.net/11572/93218
Citazione: Thermo-mechanical properties of Polyamide 6 chemically modified by chain extension with Polyamide/Polycarbonate blend / Buccella, Mauro; Dorigato, Andrea; E., Pasqualini; M., Caldara; Fambri, Luca. - In: JOURNAL OF POLYMER RESEARCH. - ISSN 1022-9760. - STAMPA. - 19:8(2012), pp. 9935-9943.
Appare nelle tipologie:03.1 Articolo su rivista (Journal article)

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