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首页> 外文期刊>The Journal of the Textile Institute >Structure and properties of nylon-6/amino acid modified nanoclay composite fibers
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Structure and properties of nylon-6/amino acid modified nanoclay composite fibers

机译：尼龙-6 /氨基酸改性纳米粘土复合纤维的结构与性能

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摘要

Biodegradable amino acid modified nanocaly was applied to produce nylon-6anoclay composite fibers using melt blending and melt spinning processes. Field emission scanning electron microscopy images showed that the surface of composite fibers was uniform and free from defects. Layer spacing of modified nanoclay was increased due to the penetration of polymer molecules into clay layers. Crystallinity, gamma crystalline percentage and total molecular orientation of composite fibers were higher in comparison to neat nylon-6 fibers, as revealed by WAXD and birefringence measurements. Tensile strength of composite fibers was lower when compared to neat nylon-6 fibers. This may be attributed to some aggregation of nanoclay and its weakening effect. Melting and glass transition temperature of composite fiber was decreased due to the addition of modified nanoclay, indicating the formation of gamma crystals and also breaking of some hydrogen bonds between the polymer molecules and the formation of new hydrogen bonds between the modified clay and the polymer molecules.
机译：通过熔融共混和熔融纺丝工艺，将可生物降解的氨基酸改性的纳米层应用于生产尼龙6 /纳米粘土复合纤维。场发射扫描电子显微镜图像显示，复合纤维的表面均匀且无缺陷。改性纳米粘土的层间距由于聚合物分子渗透到粘土层中而增加。通过WAXD和双折射测量表明，与纯尼龙6纤维相比，复合纤维的结晶度，γ晶体百分数和总分子取向更高。与纯尼龙6纤维相比，复合纤维的拉伸强度较低。这可能归因于纳米粘土的一些聚集及其减弱作用。复合纤维的熔化和玻璃化转变温度由于添加了改性的纳米粘土而降低，这表明形成了γ晶体，并且还破坏了聚合物分子之间的一些氢键，并且在改性粘土和聚合物分子之间形成了新的氢键。 。

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