Seawater ageing of low styrene emission resins for marine composites: Mechanical behaviour and nano-indentation studies
Seawater ageing of low styrene emission resins for marine composites: Mechanical behaviour and nano-indentation studies
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DOI：
10.1016/j.compositesa.2008.01.013
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发表时间：
2009-08-01
影响因子：
8.7
通讯作者：
Baley, Christophe
中科院分区：
文献类型：
--
作者：
Maurin, Romain;Perrot, Yves;Baley, Christophe
聚酯树脂广泛用于游艇的建造。为了满足关于苯乙烯排放的新的环境法规，树脂供应商已经提出了改进的配方，但是这些配方在拉伸载荷下显示出较低的失效应变。本文研究了湿老化对低苯乙烯聚酯、标准聚酯和乙烯基酯树脂及其玻璃纤维增强复合材料力学性能的影响。结果显示，在20、40和60摄氏度的温度下，在天然海水中加速老化9个月。纳米压痕用于研究老化后树脂的局部变化。低苯乙烯排放树脂及其复合材料的扩散动力学与标准聚酯树脂的扩散动力学相似。低苯乙烯树脂似乎比标准树脂更慢地失去强度，但在40摄氏度的海水中9个月后，注意到类似的性能损失。(C)2008爱思唯尔有限公司版权所有。
Polyester resins are widely employed for pleasure boat construction. In order to satisfy new environmental legislation on styrene emissions resin suppliers have proposed modified formulations, but these show lower failure strains under tensile loading. This paper examines the influence of wet ageing on mechanical properties of low styrene polyester, together with standard polyester and vinyl ester resins, and their glass reinforced composites. Results are presented from accelerated ageing in natural sea water for nine months, at temperatures of 20, 40 and 60 degrees C. Nano-indentation was used to study local changes in the resin after ageing. The diffusion kinetics of the low styrene emission resins and their composites are similar to those for standard polyester resins. The low styrene resins appear to lose strength more slowly than the standard resins but after nine months in seawater at 40 degrees C similar property losses are noted. (C) 2008 Elsevier Ltd. All rights reserved.