改性小麦秸秆纤维对PBS复合材料性能的影响研究

Study on Impact of Modified Wheat Straw Fibers on PBS Composites Properties

采用NaOH对小麦秸秆纤维进行处理,在此基础上使用蒸煮助剂Na2S2O4和偶联剂(KH550、KH560)改性秸秆纤维,并将其分别与聚丁二酸丁二醇酯(PBS)共混,制备了秸秆纤维/PBS复合材料。研究了NaOH处理中Na2S2O4的添加以及NaOH处理后KH550、KH560的改性对复合材料性能的影响。采用EDS、WXRD和SEM对改性前后的纤维及复合材料分别进行了分析和观测。研究结果表明:NaOH同3%Na2S2O4混合处理得到的复合材料的性能最好,KH560较KH550更能有效地改善复合材料的力学性能,当KH560质量分数为2%时,复合材料的力学性能最好。

Wheat straw fiber was treated by NaOH, on this basis, the Na2 S2 O4 and coupling agents （KH550, KH560） were used to modify the fber, then the wheat straw fiber/PBS composites were prepared through the blending with poly （butylene succinate ） （PBS）. The effects of addition of Na2 S2 O4, and modification of KH550 and KH560 after NaOH treatment on the properties of the straw fiber/PBS composites were studied. Energy disperse spectroscopy （ EDS）, X-ray diffraction and SEM were used to characterize and observe the modified fibers and composites before and after modification. The results indicated that the properties of the composite would be the best when the fiber was treated by NaOH-3% Na2S2O4, compared with KH550, the mechanical properties of composite modified by KH560 could been improved more effectively, and the properties would be the best when the addition of KH560 was 2%.