Continuous Polymerization of Caprolactam-Polyether Sulfone Solutions in a Twin Screw Extruder to Form Reactive Polyamide–6/Polyether Sulfone Blends and Their Melt Spun Fibers

1996 ◽  
Vol 11 (4) ◽  
pp. 310-319 ◽  
Author(s):  
H. Kye ◽  
J. L. White
Keyword(s):  
Polyamide 6 ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Polyether Sulfone ◽  
Continuous Polymerization ◽  
Melt Spun ◽  
Twin Screw ◽  
Spun Fibers

Continuous polymerization of ε-caprolactone initiated by titanium phenoxide in a twin-screw extruder

2008 ◽  
Vol 110 (6) ◽  
pp. 3480-3487 ◽  
Author(s):  
A. V. Machado ◽  
V. Bounor-Legare ◽  
N. D. Gonçalves ◽  
F. Melis ◽  
P. Cassagnau ◽  
...  
Keyword(s):  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Continuous Polymerization ◽  
Twin Screw

A Comparative Study on the Effect of Adiabatic Extrusion by Twin-Screw Extruder to the Crystallization Pattern and Thermal Behavior of Polyamide 6/C20A Nanocomposites

2013 ◽  
Vol 756 ◽  
pp. 135-142 ◽  
Author(s):  
Zulhelmi Ismail ◽  
Kamal Yusoh
Keyword(s):  
Differential Scanning Calorimetry ◽  
Thermal Degradation ◽  
Polyamide 6 ◽  
Combination Effect ◽  
Gravimetric Analysis ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Scanning Calorimetry ◽  
Mass Losses ◽  
Twin Screw

The performance of an adiabatic extrusion in minimizing the risk of thermal degradation for PA6/C20A nanocomposites was investigated in this paper. The screw speed of twin-screw extruder was maintained at constant value of 100 RPM while the clay loadings C20A were varied between 1 wt %, 3wt % and 5 wt % respectively.Thermal gravimetric analysis was used to characterize the thermal property of polyamide6/C20A-nanocomposites and the crystallization pattern was thoroughly examined via the application of differential scanning calorimetry. The time taken for 10 wt.% mass losses of majority adiabatic extruded samples was observed to be longer as compared to the conventional extruded PA6/C20A samples. The combination effect of adiabatic extrusion and nanoclay presence in the PA6-matrix has managed to increase thermal resistant of PA6. The crystallinity grade for each of the samples with different loading of C20A. however has not diversed in value since the index of crystallinity (Xc) remains independent of C20-volume althoughconventional/adiabatic setting of extruder could possibly have greater effect on the crystalline feature of PA6/C20A nanocomposites.

Sign in / Sign up

Export Citation Format

Share Document