Effect of environmental relative humidity and damage on the tensile properties of flax and nettle fibers

作     者：Davies, GC Bruce, DM 

作者机构：Silsoe Res Inst Bedford MK45 4HS England 

出 版 物：《TEXTILE RESEARCH JOURNAL》 (Text. Res. J.)

年 卷 期：1998年第68卷第9期

页      面：623-629页

核心收录：

学科分类：0821[工学-纺织科学与工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

摘      要：The effects of environmental conditions and mechanical damage on the tensile stiffness and strength of two natural fibers, flax and nettle, are investigated. Flax and nettle both contain cellulosic fiber bundles in the outer layer of the plant, each bundle comprising many individual cells bonded together. Novel experimental equipment is designed and constructed to measure, under varying environmental conditions, the static and dynamic tensile moduli and the strength of individual fiber cells. As previous work has shown, the tensile modulus is dependent on environmental relative humidity, but the effect of fiber damage is also significant. There is a correlation between the extent of damage, measured as the proportion of the fiber showing as bright under a polarizing microscope, and the modulus. When the effect of damage is taken into account, there is a consistent relationship between modulus and relative humidity.