Melt spinning of nylon 6: Structure development and mechanical properties of as-spun filaments

1977 ◽  
Vol 21 (9) ◽  
pp. 2341-2358 ◽  
Author(s):  
Vilas G. Bankar ◽  
Joseph E. Spruiell ◽  
James L. White
Keyword(s):  
Mechanical Properties ◽  
Melt Spinning ◽  
Nylon 6 ◽  
Structure Development

Structure development in the melt spinning of nylon 6

1981 ◽  
Vol 19 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Matsuo Hirami ◽  
Akira Tanimura
Keyword(s):  
Melt Spinning ◽  
Nylon 6 ◽  
Structure Development

Melt spinning of isotactic polypropylene: Structure development and relationship to mechanical properties

1977 ◽  
Vol 21 (11) ◽  
pp. 3003-3022 ◽  
Author(s):  
Hari P. Nadella ◽  
Helen M. Henson ◽  
Joseph E. Spruiell ◽  
James L. White
Keyword(s):  
Mechanical Properties ◽  
Isotactic Polypropylene ◽  
Melt Spinning ◽  
Structure Development

Structure development in the melt spinning of nylon 66 fibers and comparison to nylon 6

1978 ◽  
Vol 22 (12) ◽  
pp. 3351-3361 ◽  
Author(s):  
Merlin D. Danford ◽  
Joseph E. Spruiell ◽  
James L. White
Keyword(s):  
Melt Spinning ◽  
Nylon 6 ◽  
Structure Development ◽  
Nylon 66

An analysis of the transport properties and mechanical stability of rapidly solidified Al-Sb alloy

2015 ◽  
Vol 10 (2) ◽  
pp. 2663-2681
Author(s):  
Rizk El- Sayed ◽  
Mustafa Kamal ◽  
Abu-Bakr El-Bediwi ◽  
Qutaiba Rasheed Solaiman
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Melt Spinning ◽  
Elastic Moduli ◽  
Mechanical Stability ◽  
Microstructural Analysis ◽  
Alloy System ◽  
Antimony Content ◽  
The Stability ◽  
Rapidly Solidified

The structure of a series of AlSb alloys prepared by melt spinning have been studied in the as melt–spun ribbons  as a function of antimony content .The stability  of these structures has  been  related to that of the transport and mechanical properties of the alloy ribbons. Microstructural analysis was performed and it was found that only Al and AlSb phases formed for different composition.  The electrical, thermal and the stability of the mechanical properties are related indirectly through the influence of the antimony content. The results are interpreted in terms of the phase change occurring to alloy system. Electrical resistivity, thermal conductivity, elastic moduli and the values of microhardness are found to be more sensitive than the internal friction to the phase changes. 

scholarly journals Fiber Formation and Structural Development of HBA/HNA Thermotropic Liquid Crystalline Polymer in High-Speed Melt Spinning

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1134
Author(s):  
Bo Seok Song ◽  
Jun Young Lee ◽  
Sun Hwa Jang ◽  
Wan-Gyu Hahm
Keyword(s):  
Mechanical Properties ◽  
Shear Rate ◽  
High Speed ◽  
Melt Spinning ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Fiber Formation ◽  
Structural Development ◽  
Thermotropic Liquid Crystalline Polymer

High-speed melt spinning of thermotropic liquid crystalline polymer (TLCP) resin composed of 4-hydroxybenzoic acid (HBA) and 2-hydroxy-6-napthoic acid (HNA) monomers in a molar ratio of 73/27 was conducted to investigate the characteristic structure development of the fibers under industrial spinning conditions, and the obtained as-spun TLCP fibers were analyzed in detail. The tensile strength and modulus of the fibers increased with shear rate in nozzle hole, draft in spin-line and spinning temperature and exhibited the high values of approximately 1.1 and 63 GPa, respectively, comparable to those of industrial as-spun TLCP fibers, at a shear rate of 70,000 s−1 and a draft of 25. X-ray diffraction demonstrated that the mechanical properties of the fibers increased with the crystalline orientation factor (fc) and the fractions of highly oriented crystalline and non-crystalline anisotropic phases. The results of structure analysis indicated that a characteristic skin–core structure developed at high drafts (i.e., spinning velocity) and low spinning temperatures, which contributed to weakening the mechanical properties of the TLCP fibers. It is supposed that this heterogeneous structure in the cross-section of the fibers was induced by differences in the cooling rates of the skin and core of the fiber in the spin-line.

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