林业工程学报2016，Vol.1Issue(6)：23-28,6.DOI:10.13360/j.issn.2096-1359.2016.06.004
分丝方法对竹纤维提取及机械性能的影响
Effect of splitting method on bamboo fiber extraction and its mechanical properties
摘要
Abstract
Natural plant fibers have been investigated widely to replace synthetic fibers as load bearing components on the application of composite materials. There are many advantages for natural plant fiber used as composite reinforce⁃ment, such as abundant resources, environment friendly, low cost, light weight and recyclable. Bamboo is one of the im⁃portant forest resources in Asia. Bamboo fiber is called as “natural glass fiber” with high specific strength and specific modulus, having well competitiveness in terms of composite reinforcement. This paper analyzed the extraction method of bamboo fiber based on different splitting methods, such as combing, combing combined with rolling, and combing com⁃bined with pressing. The effect of splitting method on bamboo fiber extraction and its mechanical properties was dis⁃cussed. The results showed that the well extracted bamboo fibers were mainly made from the fiber strands which were o⁃riginally parts of vascular bundles in the raw bamboo structure, and their diameters mostly ranged from 0�07 to 0�20 mm. The multi⁃level splitting was the effective method to improve the fineness of bamboo fibers, increase fiber separation and splitting degree, and improve the uniformity of fibers, while it was probably harmful for spreading the inner defects of fibers. The bamboo fiber showed better mechanical properties when splitting by rolling⁃combing jointed facilitation. The average tensile strength, elongation at break and tensile modulus of bamboo fiber split by rolling combined with once combing were (479±175) MPa, (1�95±0�71)% and (33�1±12�5) GPa, respectively. The strength and module dis⁃tribution of the fibers was characterized with a two parameter Weibull model. It was showed that both the Weibull shape parameters of tensile strength and tensile module were affected by the splitting method in certain degree, the shape pa⁃rameter of tensile strength with rolling⁃combing jointed splitting was lower than that of other methods, while the shape pa⁃rameter of tensile module with twice combing was higher than that of the once combing method.关键词
分丝方法/竹纤维/提取工艺/机械性能/威布尔分析Key words
splitting method/bamboo fiber/extraction technique/mechanical properties/Weibull analysis分类
农业科技引用本文复制引用
黄慧,王玉,孙丰文,王小东,张齐生..分丝方法对竹纤维提取及机械性能的影响[J].林业工程学报,2016,1(6):23-28,6.基金项目
江西省科技支撑计划项目（20121BBF60043）；江西省林业科学院青年基金项目（2014521501）。 （）
