木棉纤维对羧甲基壳聚糖海绵的结构与性能影响

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中图分类号：TS102 文献标志码：A DOI：10.13338/j.issn.1006-8341.2025.03.003

Abstract To investigate the modulation mechanism of kapok fiber filing on the porous structure， mechanical properties and water absorption properties of carboxymethyl chitosan sponge （CMVA）， carboxymethyl chitosan sponges with different fiber contents were prepared. The chemical interactions were analyzed by Fourier transform infrared spectroscopy （FT-IR），SEM was used to characterize the microstructure，and the mechanical properties and water absorption behaviors were evaluated by compresson test and water absorption test. The results show that the kapok fibers might undergo esterification reaction with carboxymethyl chitosan. The incorporation of hollow wood wool fibers connects the pores of the sponge to form a complex porous structure. The incorporation of fibers is effective in bearing loads，and the sponges with 0.3% mass fraction of kapok fibers significantly increase the compressive strength of the sponge， reduce the plastic deformation region，and enhance its shape recovery and water absorption properties. The innovative use of fiber-sponge reinforcement in this study provides an important theoretical basis for the development of high-performance carboxymethyl chitosan sponges，which have a broad application prospect.

Keywordskapok fiber; carboxymethyl chitosan; compressive rebound; water absorption

0 引言

随着材料科学的快速发展，社会对高性能和功能性材料的需求日益增长[1]。（剩余11967字）