Advanced Polymer and Composites (APC) Research Group, University of Portsmouth, School of Engineering, Anglesea Road, Anglesea Building, PO1 3DJ, UK.
Carbohydr Polym. 2013 Jul 1;96(1):1-8. doi: 10.1016/j.carbpol.2013.03.074. Epub 2013 Mar 29.
Uni-directional (UD) and cross-ply (CP) cellulosic flax fibre epoxy composites were produced by hybridising UD carbon fibre prepreg onto flax system. A compression moulding technique was used to produce both flax and carbon/flax hybridised laminates. The effect of carbon fibre hybridisation on the water absorption behaviour, thermal and mechanical properties of both UD and CP flax specimens were investigated by means of water absorption, tensile, thermogravemetric analysis and flexural testing. The results showed that water absorption behaviour of hybrid samples are markedly improved compared to those without hybridisation. Similarly, the thermal stability, tensile and flexural properties of the hybrid composites are significantly improved in comparison with UD and CP flax composites without hybridisation. The experimental results suggest that cellulosic flax fibre reinforcement contributed to improve the toughness properties by promoting crack propagation whereas the carbon fibre contributed in improving thermal stability, water absorption behaviour and the overall strength and the stiffness of the hybrid composites.
单向（UD）和交叉层（CP）纤维素亚麻纤维环氧树脂复合材料是通过将单向碳纤维预浸料杂交到亚麻系统中制成的。采用压缩成型技术生产亚麻和碳纤维/亚麻混合层压板。通过吸水、拉伸、热重分析和弯曲试验研究了碳纤维杂交对 UD 和 CP 亚麻样品的吸水行为、热性能和力学性能的影响。结果表明，与未杂交的样品相比，杂交样品的吸水行为明显改善。同样，与未杂交的 UD 和 CP 亚麻复合材料相比，杂交复合材料的热稳定性、拉伸和弯曲性能显著提高。实验结果表明，纤维素亚麻纤维增强体通过促进裂纹扩展有助于提高韧性，而碳纤维则有助于提高热稳定性、吸水性以及混合复合材料的整体强度和刚度。
