期刊
EUROPEAN POLYMER JOURNAL
卷 59, 期 -, 页码 36-45出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2014.07.016
关键词
Selective laser sintering; Bio-based polyamide 11; Petrol-based polyamide 12; Fatigue crack propagation; Low temperature; Water saturation
资金
- CDTI
- National Consortium
- Aernnova Engineering Solutions Iberica
- AMOROUT Project FP7 Marie Curie Action - People COFUND Programme
- Ministerio de Ciencia e Innovacion of Spain Subprograma Juan de la Cierva
- Ministerio de Economia y Competitividad of Spain [MAT2012-37762]
Polyamide 11 (PA11) is obtained from vegetable oil and presents similar characteristics to the petroleum-based polyamide 12 (PA12). Thanks to its particular thermal properties, PA11 is suitable (as PA12 is) to be manufactured by selective laser sintering (SLS), an additive manufacturing technique. In this work, the mechanical performance of PA12 and PA11 processed by SLS was compared under various ambient conditions. It is shown that PA11 has higher toughness and ductility, especially at low temperature, at expense of a mild decrease in modulus. PA11 also presented the highest hydrothermal aging resistance. The fatigue resistance was also superior in PA11 under the studied conditions. (C) 2014 Elsevier Ltd. All rights reserved.
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