Wetting and swelling property modifications of elementary flax fibres and their effects on the Liquid Composite Molding process

被引:36
作者
Pucci, Monica Francesca [1 ]
Liotier, Pierre-Jacques [1 ]
Seveno, David [2 ]
Fuentes, Carlos [2 ]
Van Vuure, Aart [2 ]
Drapier, Sylvain [1 ]
机构
[1] Mines St Etienne, Mech & Mat Proc Dept, Lab G Friedel UMR CNRS 5307, 158 Cours Fauriel CS 62362, F-42023 St Etienne, France
[2] Katholieke Univ Leuven, Dept Mat Engn MTM, Kasteelpk Arenberg 44, B-3001 Leuven Belgium, Belgium
关键词
Natural fibres; Swelling; Wettability; Liquid Composite Molding; CONTACT-ANGLE MEASUREMENTS; CAPILLARY WICKING; REINFORCEMENT; WETTABILITY; SURFACES; BEHAVIOR; FLOW;
D O I
10.1016/j.compositesa.2017.02.028
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Flax fibres were thermally treated, to prove that in the same manufacturing conditions, modifying wetting and swelling properties of fibres changes the flow during LCM processes and thus could enhance the final material health of composite parts. Swelling of untreated and treated fibres was measured with optical and tensiometric methods proving that the thermal treatment increases the dimensional stability of flax fibres. A methodology to minimise the dispersion of contact angle values was also developed, and surface energy components of untreated and treated fibres were then determined in the frame of the Owens and Wendt theory. It was evidenced that the thermal treatment makes fibres less hydrophilic. Composite half plates reinforced with untreated and treated flax fabrics were then simultaneously manufactured by Liquid Composite Molding (LCM) process (resin infusion) and finally, a reduction of porosity was observed in composites reinforced with treated flax fabrics. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:31 / 40
页数:10
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