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采用改性剂改性后的玉米秸秆纤维增强聚丁二酸丁二醇酯(PBS),利用热压工艺得到了秸秆纤维/PBS复合材料;研究了苯甲酸、硬脂酸、硅烷、壳聚糖及乙酸5种改性剂对经超声波处理后的秸秆纤维/PBS复合材料性能的影响;采用EDS、SEM、FTIR及WXRD对改性前后的纤维及复合材料进行了分析。研究结果表明:5种改性剂对纤维均有改性效果,苯甲酸质量分数为2%～3%时,复合材料力学性能最优。
Modified corn stalk fiber reinforced polybutylene succinate (PBS) was prepared by using modifier. Straw fiber / PBS composite was obtained by hot pressing process. The effects of benzoic acid, stearic acid, silane, The influences of sugar and acetic acid modifiers on the properties of straw fiber / PBS composites after ultrasonic treatment were analyzed. The fibers and composites before and after modification were analyzed by EDS, SEM, FTIR and WXRD. The results showed that the five modifiers modified the fiber, and the mechanical properties of the composites were the best when the mass fraction of benzoic acid was 2% ~ 3%.