聚芳醚酮液晶改善聚醚醚酮可紡性的纖維製備與性能研究

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题名:	聚芳醚酮液晶改善聚醚醚酮可紡性的纖維製備與性能研究 Preparation and Characterization of High-Performance Poly(ether ether ketone) Fibers with Improved Spinnability Based on Thermotropic Liquid Crystalline Poly(aryl ether ketone) Copolymer
作者:	欒加雙胡加卓嚴留新李國偉秦曉濤王貴賓
贡献者:	紡工系
关键词:	熔融紡絲聚芳醚酮液晶聚醚醚酮纖維可紡性 Melt Spinning FPAEKLCP Poly(ether ether ketone) Fibers Spinnability
日期:	2017-07
上传时间:	2018-03-29 13:33:00 (UTC+8)
摘要:	利用熔融紡絲法製備了聚芳醚酮液晶（FPAEKLCP）改性的高性能聚醚醚酮/聚芳醚酮液晶纖維。利用毛細管流變儀，PLM，WAXD，TGA，電子單纖維強力儀研究了紡絲原料的流變性能，纖維的順向與結晶，雙折射，機械性能和熱性能。結果表明新型FPAEKLCP顯著地降低了PEEK樹脂的熔體黏度，提高了PEEK的可紡性，改善了初生絲的品質。纖維的拉伸性能主要依賴於液晶添加量、拉伸溫度、拉伸倍數和退火處理。所製得的PEEK纖維具有良好的熱穩定性，熱失重5%時的溫度為564℃。 High-performance poly(ether ether ketone) (PEEK) fibers were prepared by melt-spinning in the presence of thermotropic liquid crystalline poly(aryl ether ketone) copolymer (FPAEKLCP). The rheological of resin, birefringence, orientation, mechanical properties and thermal properties of the resulting PEEK/FPAEKLCP fibers were characterized by using a melt flow indexer, capillary rheometer, single fiber electronic tensile strength tester, polarized light microscopy (PLM), and wide-angle X-ray diffraction (WAXD), respectively. The results indicate that the melt viscosity of PEEK significantly reduced by introducing FPAEKLCP, followed by the improvements in the spinnability and the quality of as-spun fibers. The tensile properties of PEEK/FPAEKLCP fibers mainly depend on the content of FPAEKLCP, drawing temperature, drawing ratio, and annealing processes. The thermal stability of PEEK/FPAEKLCP fiber was excellent, the weight loss of fibers was less than 5% up to 564℃.
關聯:	華岡紡織期刊； 24卷5期 (2017 / 07 / 01) ， P277 - 285
显示于类别:	[紡織工程學系] 學報-華岡紡織期刊

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