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首页> 外文期刊>Journal of Applied Polymer Science >High-performance poly(vinylidene fluoride)-polyamide 11/lithium niobate nanocomposites for the applications in air filtration
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High-performance poly(vinylidene fluoride)-polyamide 11/lithium niobate nanocomposites for the applications in air filtration

机译：高性能聚（偏二氟乙烯） - 聚酰胺11 /铌酸锂纳米复合材料用于空气过滤中的应用

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摘要

To overcome the fiber-spinning problem of poly(vinylidene fluoride) (PVDF) because of its high melt viscosity and rapid crystallization, polyamide 11 (PA11) with excellent melt spinning capability and good electret properties is incorporated to prepare blends by melt mixing. Their crystal structure, morphology, electrical polarization properties, and melt spinning performance are systematically characterized by various techniques. It is found that the incorporation of PA11 reduces the crystallinity of PVDF, increases its thermally stimulated discharge current, and reduces its viscosity. Therefore, the blends show much better melt spinning capability. For such blends, the addition of outstanding inorganic electret materials, lithium niobate (LiNbO3, LN) nanoparticles is found to further improve the materials' electret properties. Such a strategy is proved to be successful in melt spinning PVDF electrets into fine fibers, which is beneficial to their applications in air filtration and other related fields. (c) 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48957.
机译：为了克服聚（偏二氟乙烯）（PVDF）的纤维纺丝问题，因为其高熔体粘度和快速结晶，聚酰胺11（PA11）具有优异的熔融纺丝能力和良好的驻极体性能，通过熔融混合制备共混物。它们的晶体结构，形态，电极化性能和熔融纺丝性能通过各种技术进行了系统的特征。发现PA11的掺入降低了PVDF的结晶度，增加了其热刺激的放电电流，并降低了其粘度。因此，混合物显示出更好的熔体纺纱能力。对于这种共混物，发现脱脂的无机驻极体材料，铌酸锂（LiNbO3，LN）纳米颗粒进一步改善了材料的驻极体性质。证明这种策略在熔融纺丝PVDF电极中成功成细纤维，这对其在空气过滤和其他相关领域的应用有益。 （c）2020 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2020,137,48957。

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