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首页> 外文期刊>Journal of Polymers and the Environment >Enhancement of Mechanical Properties of Bio-Resin Epoxy/Flax Fiber Composites using Acetic Anhydride
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Enhancement of Mechanical Properties of Bio-Resin Epoxy/Flax Fiber Composites using Acetic Anhydride

机译：乙酸酐增强生物树脂环氧树脂/亚麻纤维复合材料的机械性能

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摘要

Chemically treated acetic anhydride (AA) flax fiber mats were investigated. Bio-based epoxy resin and conventional epoxy resin unidirectional fiber composites were manufactured using a vacuum bagging technique. Flax fibers in the bio-resin composites were chemically treated with 1, 2, 3 and 4% (AA), while the fibers used with the conventional resin were not treated. The composites with the conventional resin were compared with the bio-resin in an untreated condition. A 2% AA treatment improved the bio-resin composite tensile strength, stiffness and bond shear strength by 55%, 58% and 7%, respectively. These three properties were evaluated and the results statistically analyzed using ANOVA. The AA reduced moisture absorption intake and improved adhesion of the fiber/matrix interface. The composites treated with 1-2% AA were most successful with a 65% moisture resistance. The scanning electron microscope was used to observe the fiber surface and fractured surfaces of the untreated and treated flax fibers. A chemical pre-treatment has improved the composite mechanical and moisture resistance over the non-treated fiber composites.
机译：研究了化学处理的乙酸酐（AA）亚麻纤维垫。生物基环氧树脂和常规环氧树脂单向纤维复合材料是使用真空装袋技术制造的。生物树脂复合材料中的亚麻纤维经过1％，2％，3％和4％（AA）的化学处理，而与常规树脂一起使用的纤维未经处理。将具有常规树脂的复合材料与未经处理的生物树脂进行比较。 2％的AA处理分别将生物树脂复合材料的拉伸强度，刚度和粘结剪切强度提高了55％，58％和7％。评估这三个属性，并使用ANOVA对结果进行统计分析。 AA减少了水分吸收，并改善了纤维/基质界面的粘合性。用1-2％AA处理的复合材料最成功，其耐湿性为65％。扫描电子显微镜用于观察未处理和已处理的亚麻纤维的纤维表面和断裂表面。化学预处理比未处理的纤维复合材料提高了复合材料的机械强度和耐湿性。

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