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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and properties of polyamide 6 fibers prepared by the gel spinning method
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Preparation and properties of polyamide 6 fibers prepared by the gel spinning method

机译：凝胶纺丝法制备聚酰胺6纤维及其性能

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摘要

Polyamide 6 (PA6) fibers were prepared by CaCl _2 complexation and the gel spinning technique. PA6 was partially complexed with CaCl _2 for the purpose of suppressing interchain amide group hydrogen bonding. The fibers were characterized with scanning electron microscopy, X-ray diffraction (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) spectroscopy. In the gel spinning process, a mixed tetrachloroethane and chloroform solution was chosen as the coagulation bath after a comparison of different types of solutions. From our investigation of the morphology, structure, and mechanical properties of gel-spun and hot-drawn fibers, it was indicated that the modulus and tensile strength increased with increasing draw ratio, the orientation of the fibers was improved, and the cross section of the PA6 gel fibers became more smooth and tight. The results from the XRD, DSC, and FTIR tests indicated that calcium metal cations complexed with the carbonyl oxygen atoms of PA6. The maximum modulus and tensile strength values obtained in this study were 28.8 GPa and 413 MPa, respectively, at a draw ratio of 8.
机译：通过CaCl_2络合和凝胶纺丝技术制备了聚酰胺6（PA6）纤维。为了抑制链间酰胺基氢键合，PA6与CaCl _2部分配合。通过扫描电子显微镜，X射线衍射（XRD），差示扫描量热法（DSC）和傅里叶变换红外（FTIR）光谱对纤维进行表征。在凝胶纺丝过程中，在比较了不同类型的溶液之后，选择了四氯乙烷和氯仿的混合溶液作为混凝浴。从我们对凝胶纺和热拉伸纤维的形态，结构和力学性能的研究中可以看出，模量和拉伸强度随着拉伸比的增加而增加，纤维的取向得到改善，并且纤维的横截面PA6凝胶纤维变得更加光滑和紧密。 XRD，DSC和FTIR测试的结果表明，钙金属阳离子与PA6的羰基氧原子络合。在该研究中获得的最大模量和拉伸强度值分别为28.8 GPa和413 MPa，拉伸比为8。

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