Structure and property studies of poly(trimethylene terephthalate) high-speed melt spun fibers

<b>Structure and Mechanical Properties of Poly(trimethylene terephthalate)Fibers Obtained by CO₂ Laser Drawing and a Secondary Contact Heater Drawing</b>

“…It is a noteworthy that the high-toughness PTT fiber which has both over 5 cN/dtex strength and over 40% elongation can be made by the first laser-heated drawing as well as the two-steps drawing in this study. The strength and elongation of PTT fibers are reported 3 cN/dtex and 50% by high-speed spinning [16,17], 2.2 cN/dtex by zonedrawing [18], 3.7-5.4 cN/dtex and 22-31% by highmolecular weight PTT [19,20]. The values obtained in this study are also higher than these reported values.…”

Structure development and physical properties achieved in the drawing and/or annealing of PEN fibers

“…6 -11 This polymer is reported to possess two crystalline modifications, and a crystalline transition phenomenon may occur during the formation processing, including extrusion, elongation, and heat treatment. In our previous study, 12 the melt spinning of PEN fibers was performed at different take-up velocities ranging from 0.5 to 10 km/min. The effect of take-up velocity on the structure and properties of as-spun fibers was also investigated through general characterization and measurements.…”

Poli (trimetilen Tereftalat) Lifleri Bölüm 1: Üretimi, Özellikleri, Kullanım Alanları, Çevresel Etkisi

“…Lif çekim hattı boyunca yüksek lif çekim hızının neden olduğu yüksek stres, lifin molekül oryantasyonunda, kristalleşme derecesinde ve fiziksel özelliklerin-de kademeli olarak artış meydana getirmektedir. Oryantasyon ve kristalleşmenin artması ile de PTT lifi istenilen fiziksel özelliklere ulaşmaktadır [20].…”