Melt Spinning of Poly(lactic acid) and Hydroxyapatite Composite Fibers: Influence of the Filler Content on the Fiber Properties

2013 ◽  
Vol 5 (15) ◽  
pp. 6864-6872 ◽  
Author(s):  
Maria Persson ◽  
Gabriela S. Lorite ◽  
Sung-Woo Cho ◽  
Juha Tuukkanen ◽  
Mikael Skrifvars
2015 ◽  
Vol 73 ◽  
pp. 132-138 ◽  
Author(s):  
A. Orue ◽  
A. Jauregi ◽  
C. Peña-Rodriguez ◽  
J. Labidi ◽  
A. Eceiza ◽  
...  

2011 ◽  
Vol 335-336 ◽  
pp. 153-156
Author(s):  
Xue Li Wu ◽  
Jian Hui Qiu ◽  
Lin Lei ◽  
Yang Zhao ◽  
Eiichi Sakai

To consider the effective utilization of plastics and agricultural wastes, rice straw fibre was extracted from agricultural wastes, and then composited with polylactic acid(PLA). The thermal stability of straw/poly(lactic acid)(straw/PLA) composites decreased (Thermogravimetric Analysis, TGA). Tensile strength, fracture strain and sharply impact strength of straw/PLA were decreased with the increase of filler content and grain size of straw. Yong’s modulus were increased as the increasing of straw content.


2019 ◽  
Vol 14 ◽  
pp. 155892501985944
Author(s):  
Jitlada Boonlertsamut ◽  
Supaphorn Thumsorn ◽  
Toshikazu Umemura ◽  
Hiroyuki Hamada ◽  
Atsushi Sakuma

In this work, the spinning abilities of polyoxymethylene-based core–sheath bicomponent fibers were investigated. Bicomponent fibers were prepared using polyoxymethylene as the core material and poly(lactic acid) blended with polyoxymethylene or pure polyoxymethylene as sheath materials, and their characteristics were investigated and compared. Fiber properties such as elongation are important because they directly relate to the spinning performance during fiber processing. This work reports the impact of the composition designation of the core–sheath bicomponent fibers on the controllable stability of poly(lactic acid) in polyoxymethylene–poly(lactic acid) blends in the fibers, as well as the influence of the core–sheath material on the structure, fiber diameter and distribution, thermal stability, and mechanical properties of the core–sheath bicomponent fibers. It was found that the selection of core and sheath materials affected the structural characteristics of the fibers. The polyoxymethylene core–polyoxymethylene sheath (FV) fiber showed dimensional stability. However, the polyoxymethylene core–poly(lactic acid)/polyoxymethylene sheath (FT30) fiber provided the optimum limit of poly(lactic acid) content for controlling the stable properties of the core–sheath bicomponent fibers.


2011 ◽  
Vol 297 (1) ◽  
pp. 75-84 ◽  
Author(s):  
Rudolf Hufenus ◽  
Felix A. Reifler ◽  
Katharina Maniura-Weber ◽  
Adriaan Spierings ◽  
Manfred Zinn

RSC Advances ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 5166-5179 ◽  
Author(s):  
Hongli Zhou ◽  
Yufeng Tang ◽  
Zongliang Wang ◽  
Peibiao Zhang ◽  
Qingsan Zhu

Schematic of the centrifugal melt spinning apparatus, consisting of (a) a rotary disk, (b) heating circuit, (c) electromotor, (d) filling inlet and (e) rotary collector on a drum.


2019 ◽  
Vol 90 (3-4) ◽  
pp. 294-301 ◽  
Author(s):  
Weraporn Pivsa-Art ◽  
Sommai Pivsa-Art

Multifilament yarns of polyoxymethylene (POM) and poly(lactic acid) (PLA) blends were prepared using a melt-spinning method. The ratios of the POM/PLA fibers studied were 10/90, 30/70, 50/50, 70/30, and 10/90 by weight compared with that of the pure polymers. The extrusion of the dry blend polymers was carried out using a single-screw extruder at 180–210℃ with a winding speed of 800 m/min. The thermal and morphological analysis of the multifilament yarn confirmed the phase separation of the two polymers. However, the mechanical properties of the blends showed excellent elongation at break, which confirmed the good distribution of PLA in the POM matrix. POM/PLA with weight ratios of 70/30 and 90/10 showed high tenacity. The elongation of the POM/PLA blends shows excellent results, which is unusual for polymer blends with phase separation.


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