Axial structure and composition distribution of kapok fiber
HU Lixi · Textile Research Journal · 2015
The residual deformation and fracture morphologies of kapok fibers were analyzed,and the surface morphologies of kapok fibers before and after removal of different compositions and reverting of the hollowness were observed. Based on these results,the main body structure,surface structure and material distribution of kapok fiber were summarized. It was found that strip units with width of 5- 20 μm screw along the axial form the tube-like kapok fiber. The strip units are composed of fibrils( cellulose),lignin and hemicelluloses mainly fill in the spiral seams between the strip units. The spiral seams are the weak sections of the fiber and form fractures or folds when suffering large force or repeated small forces. Macrofibrils with a certain size are arranged and woven neatly along the axial to form the thin surface structure of kapok fiber,with partial horizontal rings of a certain width in the surface.