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研究了一种全天然植物纤维复合材料在纤维素酶和自然土埋作用下,复合材料的失重和力学性能的变化。以氯代氰乙基化植物纤维为基体树脂,剑麻纤维作为增强材料制备了复合材料,考察了该材料的纤维素酶降解(酶质量含量为1%)和土埋降解(6个月)特性,发现塑化木粉具有生物降解性,并且比原木粉具有更强的酶降解性,归因于塑化过程脱除了部分木质素,并扩大了植物纤维的分子结构;另一方面,复合材料层板也比塑化木模压板的酶和土埋降解性强,反映出剑麻纤维自身的降解。酶降解或土埋生物降解均可导致全植物纤维复合材料力学性能下降,表明这类复合材料保持了植物纤维的生物降解性。
The change of weight loss and mechanical properties of an all natural plant fiber composite under the action of cellulases and natural soil burial was studied. Cyanuric chloride ethylated plant fiber as matrix resin and sisal fiber as reinforcing material were used to prepare composite materials. The effects of cellulase degradation (enzyme content 1%) and soil degradation (6 months) Characteristics, and found that plasticized wood flour biodegradable, and stronger than the original wood flour enzymatic degradability, due to plasticization process to remove part of the lignin, and expand the molecular structure of plant fibers; the other hand, the composite The material laminates are also more degradable than the enzymes and soil burial materials of plasticized wood moldings, reflecting the degradation of sisal fiber itself. Enzymatic degradation or biodegradation can lead to the decrease of mechanical properties of all-plant fiber composites, indicating that these composites maintain the biodegradability of plant fibers.