The voids formation mechanisms and their effects on the mechanical properties of flax fiber reinforced epoxy composites

被引：107
作者：
Li, Yan [1 ,2 ]
Li, Qian [1 ]
Ma, Hao [1 ]
机构：
[1] Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R China
[2] Minist Educ, Key Lab Adv Civil Engn Mat, Beijing, Peoples R China
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2015年 / 72卷
关键词：
Polymer-matrix composites (PMCs); Porosity; Mechanical testing; Compression moulding; NATURAL FIBERS; SISAL FIBER; PERMEABILITY; POROSITY; GLASS;
D O I：
10.1016/j.compositesa.2015.01.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Unidirectional flax fiber reinforced composites (FFRC) were made by hot press. Effects of processing parameters, including curing pressure, time and temperature on the distribution, shape and content of the voids formed during the manufacturing process of FFRC were investigated. The voids were characterized with the aid of ultrasonic C-scan and optical microscopy. Tensile and interlaminar shear properties of FFRC containing different content and shape of the voids were tested. The results showed that the voids were easily trapped in both the intralaminar and inside the flax yarns of FFRC due to the distinct structural characteristics of flax fibers. The relationships between voids and mechanical properties of the composites were established. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：40 / 48
页数：9
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