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首页> 外文期刊>Journal of Applied Polymer Science >Investigation of vegetable-oil-based coupling agents for kenaf-fiber-reinforced unsaturated polyester composites
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Investigation of vegetable-oil-based coupling agents for kenaf-fiber-reinforced unsaturated polyester composites

机译：洋麻纤维增强不饱和聚酯复合材料的植物油基偶联剂的研究

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摘要

Kenaf fibers are modified with three novel coupling agents that consist of an isocyanate and acrylated epoxidized soybean oil. The untreated-kenaf-UPE (unsaturated polyester) composites and coupling-agent-treated-kenaf-UPE composites are obtained by a compression molding process. Modifications of kenaf fibers with coupling agents significantly increase mechanical properties, and enhance water resistance of the resulting kenaf-UPE composites. Characterization of coupling-agent-treated-fibers with Fourier transform infrared spectroscopy reveals that coupling agents are covalently bonded onto kenaf fibers. Improved interfacial adhesion between kenaf fibers and UPE resin is confirmed with scanning electron microscopy. The mechanisms on which the chemical treatments of kenaf fibers improve the mechanical properties and water resistance are discussed.
机译：红麻纤维用三种新型偶联剂改性，该偶联剂由异氰酸酯和丙烯酸酯化的环氧化大豆油组成。未处理的洋麻-UPE（不饱和聚酯）复合材料和偶联剂处理的洋麻-UPE复合材料通过压缩成型法获得。用偶联剂改性洋麻纤维可显着提高机械性能，并增强所得洋麻-UPE复合材料的耐水性。用傅立叶变换红外光谱对偶联剂处理过的纤维进行表征，发现偶联剂共价键合在洋麻纤维上。用扫描电子显微镜证实洋麻纤维和UPE树脂之间的界面粘合性得到改善。讨论了洋麻纤维化学处理改善机械性能和耐水性的机理。

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