摘要
对羊毛纤维弱节的几何形态特征,采用SEM观察进行了分类定义和表征。实际观察发现羊毛的弱节有纤维细颈和形态结构缺陷二类,其中形态结构缺陷主要是天然生长和人为加工中的畸变点和损伤点。弱节的几何长度为纤维直径的2～4倍,且弱节越多,纤维直径离散越大。同时分析了羊毛形态弱节的主要成因。
The geometrical morphology of the weak links on wool fibres has been described, classified and characterized by means of the observation of scanning electron microscope (SEM). The weak-links of wool fibres in geometrical structure involve two sorts of forms, i.e. the thin parts and the structural flaws of the fibres. The experimental results from a series of the SEM photographs indicate that i) the natural defects and artificial damages are the main reason resulting in the structural flaws; ii) the geometric dimension of the fibre weak-links are 2-4 times as big as the average fibre-diameter; and iii) the more the morphological structural weak-links are, the large the variation of the fibre diameter and the lower the fibre strength and extension.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第1期65-70,共6页
Journal of Donghua University(Natural Science)
基金
国家教育部重点项目基金(项目编号 00058)
关键词
羊毛纤维
几何结构
形态特征
弱节
weak-link, wool, fibre, SEM, morphology, geometrical structure
