期刊论文

中文

复合材料学报

1000-3851

2024

41

04

2065-2073

10.13801/j.cnki.fhclxb.20230907.003

本校为第一机构

为解决麦秸纤维/聚乳酸(WF/PLA)复合材料界面相容性较差的问题,以H2O2 作为氧化剂处理麦秸,采用响应面试验法探究H2O2 的pH、处理温度、质量比对氧化麦秸纤维(OWF)/PLA复合材料力学性能的影响,得到各因素对复合材料力学性能的影响规律.结果表明:pH和处理温度、pH和质量比、处理温度和质量比之间均表现出明显的交互作用.回归方程预测的最佳工艺参数如下:H2O2 的pH为 8.9,H2O2 的处理温度为 52.3℃,H2O2 的质量比为 2%.在此条件下,复合材料的拉伸强度和断裂伸长率分别为 38.89 MPa和7.85%,较未改性前分别提高了 15.64%和 15.20%.FTIR结果表明,OWF中的部分羟基被H2O2 氧化为羧基.SEM结果表明,OWF能...

To solve the problem of poor interfacial compatibility of wheat straw fiber/poly(lactic acid)(WF/PLA)composites,WF was treated with H2O2 as oxidant,and the effects of pH,treatment temperature,and mass ratio of H2O2 on the mechanical properties of oxidized wheat straw fiber(OWF)/PLA composites were investigated by response surface method.The results show that there is a significant interaction between pH and treatment tem-perature,pH and mass ratio,and treatment temperature and mass ratio.The optimal process parameters predicted by the regressio...