胡麻纤维脱胶及复合材料在医用夹板上的研究

Study on Flax Fiber Degumming and Composite Medical Splint

胡麻纤维脱胶借鉴了亚麻脱胶技术,利用开松、梳理等设备进行初加工,得到胡麻纤维并作为增强体,分别以环氧树脂和聚乳酸为基体;利用真空辅助树脂传递模塑(VARTM)和热压成型工艺,制作出纤维含量分别为10%、20%、30%,尺寸大小为50cm×50cm的胡麻/环氧树脂复合材料试样(FER)和胡麻/聚乳酸复合材料试样(FP);对其进行力学性能测试,进行组间和组内对比,对其力学性能进行分析,得出:胡麻纤维为30%时拉伸强力34.76 MPa、弯曲强度79.39MPa、压缩强度666.59MPa,FER力学性能最好,可用于医用夹板。

The flax fiber degumming draws lessons from flax degumming technology, by preliminary processing with opening and carding equipment, flax fiber was obtained and used as reinforcement, respectively, with epoxy resin and polylactic acid as matrix. The flax/epoxy resin composite sample(FER) and flax/polylactic acid composite sample(FP) with fiber content of 10%, 20% and 30% and size of 50 cm×50 cm were prepared by vacuum assisted resin transfer molding(VARTM) and hot-pressing molding process. The mechanical properties were tested. The comparison between groups and within groups was carried out, and the mechanical properties were analyzed. It was concluded that the mechanical properties of FER were the best when the flax fiber was 30 %, and the tensile strength was 34.76 MPa, the bending strength was 79.39 MPa, and the compression strength was 666.59 MPa, which realized the function of medical splint.