Blends of biorenewable polyamide-11 and polyamide-6,10

Ruehle, David A., Perbix, Clay, Castaneda, Monica, Dorgan, John R., Mittal, Vikas, Halley, Peter and Martin, Darren (2013) Blends of biorenewable polyamide-11 and polyamide-6,10. Polymer, 54 26: 6961-6970. doi:10.1016/j.polymer.2013.10.013

Author Ruehle, David A.
Perbix, Clay
Castaneda, Monica
Dorgan, John R.
Mittal, Vikas
Halley, Peter
Martin, Darren
Title Blends of biorenewable polyamide-11 and polyamide-6,10
Journal name Polymer   Check publisher's open access policy
ISSN 0032-3861
Publication date 2013-12-13
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.polymer.2013.10.013
Volume 54
Issue 26
Start page 6961
End page 6970
Total pages 10
Place of publication Camden, London, United Kingdom
Publisher Elsevier Ltd
Collection year 2014
Language eng
Subject 1605 Policy and Administration
2507 Polymers and Plastics
Abstract Biorenewable polyamide-11 (PA11) is blended with partially biorenewable polyamide-6,10 (PA610) to produce thermoplastics of varying renewable carbon content. DSC thermograms show melting point depression for the PA610 crystals with increasing PA11 composition thus indicating that the two polyamides are fully miscible in the melt; the blends exhibit crystallization induced phase separation. Wide angle x-ray scattering measurements show that crystals of pure PA11 and pure PA610 form in all blends upon cooling. Small angle X-ray scattering shows an increase in lamellar long spacing with increasing PA11 content. Mechanical and thermal properties of these blends are characterized by differential scanning calorimetry, thermogravimetric analysis, dynamic mechanical thermal analysis, tensile testing, and impact testing. Mechanical properties of the blends show intermediate values compared to the homopolymers but with a positive deviation from a simple law of mixtures; significant improvements in the properties of PA11 with the incorporation of 25wt% PA610 are observed. The present study provides extensive data on the physicochemical properties of a promising biorenewable blend system which exhibits the novel feature of thermodynamic miscibility.
Keyword Bioplastics
Crystallization induced phase separation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

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