以亚麻落麻纤维、聚乳酸纤维为原料,采用非织造加工方法制作预成型件后,采用模压工艺将预成型件制成亚麻落麻纤维/聚乳酸基完全可降解复合材料.分别研究了预成型件制作工艺中梳理次数、增强纤维体积分数及模压成型工艺中模压温度对复合材料拉伸性能的影响,并采用扫描电镜(SEM)研究了复合材料的拉伸断裂形貌和界面结合状况.结果表明:纤维体积分数为39.6%、模压温度为190℃时材料具有最好的拉伸性能;随着梳理次数的增多,其拉伸强度先升高后下降,梳理2次时其力学性能最优.材料的拉伸断口形貌表明,聚乳酸基材料为脆性断裂,增强纤维与树脂基体之间的界面结合有待进一步改善.
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