摘要
通过实验表征了国产木棉纤维的基本结构和性能。木棉纤维壁薄,具有高达97%的中空率,壁厚不均匀,纵向表面有微小凸痕。纤维头端逐渐变细,尾端较粗,呈自然紧闭状态。所测木棉单纤维密度达0.30gcm3,主要由纤维素和木质素组成,结晶度为35.9%,双折射率为0.017,其胞壁结构较棉纤维疏松。木棉纤维具有优异的耐热性能,分解温度为296℃,在354℃时木棉纤维基本停止分解,发生炭化。
The structures and performances of the native kapok fibers were studied. The kapok fiber has thin wall and huge lumen,the hollow ratio can reach 97 %. One end of the fiber tapers to one point and is closed, and the other end is bulbous shape and may be closed tightly. The bulk density of the fiber is 0.30 g/cm^3 . The kapok fiber mainly consists of cellulose and lignin, the crystallization degree is 35.90% and the specific birefringence is 0.017. The structure of the cell wall is looser than that of cotton.The fiber is good heat-resistant, which decomposing temperature is 296℃ . The fiber stops decomposing and happens carbonizing at 354℃.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2005年第4期4-6,共3页
Journal of Textile Research
关键词
木棉纤维
结构
性能
kapok fiber
structure
performance
