Optimization of the Hard-Elastic Processing of PVDF Modified Polypropylene Fibers Based on Orthogonal Experimental Method 


Vol. 26,  No. 7, pp. 2759-2767, Jul.  2025
10.1007/s12221-025-01013-z


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  Abstract

This study explored the process optimization of PVDF-modified hard-elastic PP fibers. Hard-elastic PP/PVDF fibers were prepared through melt blending, spinning, stretching, and post-treatment processes. The optimal processing conditions were explored using an L25(54) orthogonal experiment. Subsequently, under optimized processing conditions, a comparison was made with pure PP fibers to investigate the effect of PVDF incorporation on the hard-elastic behavior of polypropylene fibers. The fibers were characterized using mechanical testing, differential scanning calorimetry (DSC), scanning electron microscopy (SEM), polarizing optical microscopy (PLM), and small-angle X-ray scattering (SAXS). The experimental results showed that the prepared PP/PVDF blend fibers exhibited typical characteristics of hard-elastic materials. The addition of PVDF effectively promoted the crystallization of PP fibers and enhances the thermal stability of the fiber material. Based on the orthogonal experiment results, when the PVDF content is 36%, the spinning temperature is 250 °C, the draw ratio is 35, and the annealing temperature is 140 °C, the fiber exhibits an elastic recovery rate of 83.25%, an elastic modulus of 3.54 GPa, a tensile strength of 231.21 MPa, and a breaking elongation of 761.16%.

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  Cite this article

[IEEE Style]

Y. Li, Y. Gao, Z. Lu, W. Hu, "Optimization of the Hard-Elastic Processing of PVDF Modified Polypropylene Fibers Based on Orthogonal Experimental Method," Fibers and Polymers, vol. 26, no. 7, pp. 2759-2767, 2025. DOI: 10.1007/s12221-025-01013-z.

[ACM Style]

Yuanyuan Li, Yantao Gao, Zan Lu, and Wenfeng Hu. 2025. Optimization of the Hard-Elastic Processing of PVDF Modified Polypropylene Fibers Based on Orthogonal Experimental Method. Fibers and Polymers, 26, 7, (2025), 2759-2767. DOI: 10.1007/s12221-025-01013-z.

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pISSN : 1229 - 9197
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