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分析了涤锦超细纤维布与普通聚酯布的区别。从原料的选择,干燥条件,纺丝技术等方面,介绍了高密度涤锦复合超细纤维的关键技术难点。其DTY产品沸水收缩率可达10%以上,织物经处理后,具有特殊的优良性能:织物回缩致密不变形,手感更加柔软,纤维的比表面积大,能满足电子无尘布市场。 相似文献
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复合纺丝法纺制超细旦纤维的工艺研究 总被引:3,自引:0,他引:3
用复合纺丝法纺制了涤锦复合超细纤维,在常规及高速纺丝条件下,研究了冷却条件、集束点位置、纺丝速度、涤锦复合比、拉伸条件等对纤维的力学性质、热收缩性、取向和结晶等的影响,得出在上述条件下的影响规律.文中还对纤维的剥离性能及其对纤维的纺织加工性进行研究,为利用剥离法制取涤锦复合超细纤维提供依据. 相似文献
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介绍了以涤纶(PET)为岛、锦纶(PA6)为海,采用复合纺丝技术开发的多岛型高回弹性PA6/PET复合纤维的生产流程,探讨了原料的选择、切片干燥、纺丝温度、组件设计、冷却条件、拉伸加弹、PA6/PET复合比及岛个数等工艺条件,并选择24f×18~20岛、锦涤比50∶50的多岛型高回弹性纤维为最理想产品。纤维织成织物后并不象海岛纤维一样要溶去其中一组分,而是用廉价的PET替代部分昂贵的PA6。结果表明:开发的多岛型高回弹性PA6/PET复合纤维及其织物兼具了锦、涤2种纤维的优点,且原料成本是纯锦纶的2/3。 相似文献
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PP/PET共混体系及其合金纤维的研究 总被引:3,自引:0,他引:3
用增容剂PP-g-AA增容PP/PET共混体系。研究了增容剂含量、共混物组成、共混时间、共混温度以及螺杆转速对PP/PET相形态的影响。结果表明:增容剂的加入大大改善了PP/PET两相间的相容性,并且增容剂的添加量有一最佳值,为PET质量的50%。随着PET含量的增加,分散相的尺寸有所增加。共混温度和共混时间均有一最佳值。随着螺杆转速的提高,分散相的尺寸减小,分布趋于均一,相容性也得到改善。另外,还制备了PP/PET合金纤维,对其表面处理后以及断面SEM观察均表明分散相PET原位成纤,这些微纤提高了合金纤维的力学性能。测试了合金纤维的力学性能,发现组分比为90/10/5时,合金纤维具有最好的力学性能。 相似文献
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A method is described for the determination of the rates of diffusion of 1,4-diaminoanthraquinone in polyester, nylon and cellulose triacetate fibres under anhydrous conditions below 150°C. As the results of the measurements of diffusion were favourable, the dyeing of synthetic-polymer fibres, particularly polyester fibres, by application of solid disperse dye in the form of an aerosol was studied. Batch dyeing of loose polyester fibres, utilising a fluidised-bed principle, was investigated, as was continuous dyeing by filtration of an aerosol through a moving layer of fibres. The latter method appears to be suitable for bulk dyeing. 相似文献
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Hao Wu Yukun Ren Tianyi Jiang Juzheng Chen Wenlong Wu Yang Lu Hongyuan Jiang 《International Journal of Applied Ceramic Technology》2022,19(6):2979-2989
Lightweight hollow ceramic microfibers/microparticles hold promising prospects in numerous applications. To date, it remains a challenge to develop a fabrication strategy that well balances product quality and efficiency. In this article, an all-aqueous microfluidic method was proposed to prepare tubular polymeric fiber as the preceramic template. The relevant dimensional parameters could be promptly regulated via simple flow rate control. This approach could serve as a general technical route to preparing different kinds of ceramics by switching the types of nanoparticles. Here, silica nanoparticles were introduced and the ceramic microfiber could be got via calcination. Afterward, the tubular silica microfiber was employed to synthesize geopolymer composite by mold casting. The chemically formed interfacial bonding between the silica microfiber and geopolymer matrix was confirmed by elemental analysis. The addition of 10% volume fraction silica microfiber could not only increase the flexural modulus of geopolymer composite by 3.5 times but also effectively inhibited crack propagation under thermal circumstances. 相似文献
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The relationship between spinning speed and throughput rate has been investigated for fibers having the same fiber denier in the drawn state when produced by melt spinning of poly(ethylene terephthalate), nylon 6, and polypropylene polymers over a range of take-up speed (750–3000 m min-1) and throughput rate. To understand the structural origin of the relationship, a limited amount of characterization of structure and properties of the as-spun and drawn fibers was also done. A comparison of the results for the three polymers shows that while the increase in productivity with increase in spinning speed is relatively less for polyester and nylon 6, it is quite high for polypropylene. The birefringence data show that while molecular orientation increases rapidly with increasing wind-up speed in polyester and nylon 6, the rate of increase is relatively less in the case of polypropylene. The possible reasons for the observed differences in behavior are discussed. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 65:1773–1788, 1997 相似文献