Orientation development in the injection molding of amorphous polymers

1983 ◽  
Vol 23 (5) ◽  
pp. 271-284 ◽  
Author(s):  
A. I. Isayev
Keyword(s):  
Injection Molding ◽  
Amorphous Polymers

Modelling the Packing Cooling Stage in Injection Molding of Amorphous Polymers

1988 ◽  
Vol 3 (4) ◽  
pp. 184-190 ◽  
Author(s):  
D. Huilier ◽  
J. Terrisse ◽  
M.-E. de la Lande ◽  
A. Latrobe
Keyword(s):  
Injection Molding ◽  
Amorphous Polymers ◽  
Cooling Stage

Replication, Characterization and Simulation of Micro Injection Molded Microlens Arrays Using Technical Amorphous Polymers

2013 ◽  
Vol 562-565 ◽  
pp. 458-464 ◽  
Author(s):  
Lei Chen ◽  
Stefan Kirchberg ◽  
Bing Yan Jiang ◽  
Lei Xie ◽  
Qing Jun Qiu ◽  
...  
Keyword(s):  
Injection Molding ◽  
Microlens Array ◽  
Amorphous Polymers ◽  
Experimental Methods ◽  
Microlens Arrays ◽  
Ultra Precision ◽  
Injection Molded ◽  
Micro Optics ◽  
Lens Radius

Novel results relating to the characterization of microlens array production by simulation and micro injection molding were examined to produce precise micro-optics from Polymethylmethacrylate (PMMA), Polycarbonate (PC) as well as Polystyrene (PS). The microlens arrays show 100 lenses in a 10×10 array with a lens radius of 271 µm and a lens depth of 45 µm. The pitches between the lenses are fixed at 800 µm. The surface of the ultra-precision diamond end-ball milled microlens array mold was polished to reduce the surface roughness of the injection molded specimen. The injection molding parameters were optimized to get precise lens geometries with high shrinkage uniformity by simulation and experimental methods. The injection molding results show precise injection molded microlens arrays and PC microlens array shows the best geometrical results compared to the microstructured insert.

Orientation development and relaxation in injection molding of amorphous polymers

1978 ◽  
Vol 18 (4) ◽  
pp. 273-281 ◽  
Author(s):  
Wolfgang Dietz ◽  
James L. White ◽  
Edward S. Clark
Keyword(s):  
Injection Molding ◽  
Amorphous Polymers

Filling Behavior of Polymer Material into Sub-^|^mu;m Structure in Injection Molding Process

2013 ◽  
Vol 133 (4) ◽  
pp. 105-111
Author(s):  
Chisato Yoshimura ◽  
Hiroyuki Hosokawa ◽  
Koji Shimojima ◽  
Fumihiro Itoigawa
Keyword(s):  
Injection Molding ◽  
Polymer Material ◽  
Injection Molding Process ◽  
Molding Process
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