Monotonic loading and fatigue response of a bio-based polyamide PA11 and a petrol-based polyamide PA12 manufactured by selective laser sintering

被引：55
|
作者：
Salazar, A. [1 ]
Rico, A. [1 ]
Rodriguez, J. [1 ]
Segurado Escudero, J. [2 ]
Seltzer, R. [2 ]
Martin de la Escalera Cutillas, F. [3 ]
机构：
[1] Univ Rey Juan Carlos, DIMME, Grp Durabilidad & Integridad Mecan Mat Estruct, Madrid 28933, Spain
[2] Inst IMDEA Mat, Madrid, Spain
[3] Aernnova Engn Solut Iber, Madrid, Spain
来源：
EUROPEAN POLYMER JOURNAL | 2014年 / 59卷
关键词：
Selective laser sintering; Bio-based polyamide 11; Petrol-based polyamide 12; Fatigue crack propagation; Low temperature; Water saturation; MECHANICAL-PROPERTIES; CRACK-PROPAGATION; BEHAVIOR; COMPOSITES; SPECIMENS; HYDROLYSIS; COMPONENTS; NYLON-11; KINETICS; WATER;
D O I：
10.1016/j.eurpolymj.2014.07.016
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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.
引用
收藏
页码：36 / 45
页数：10
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