The physical properties and morphology of poly-ε-caprolactone polymer blends

1977 ◽  
Vol 21 (11) ◽  
pp. 3035-3061 ◽  
Author(s):  
Douglas S. Hubbell ◽  
Stuart L. Cooper
1960 ◽  
Vol 17 (182) ◽  
pp. 351-355
Author(s):  
Kikuo Kuriyama ◽  
Masataka Mizutani ◽  
Masaaki Fukatsu ◽  
Yonosuke Kobatake ◽  
Yukihiko Inoue

2017 ◽  
Vol 885 ◽  
pp. 36-41 ◽  
Author(s):  
Károly Dobrovszky ◽  
Ferenc Ronkay

Blending polymers is an effective method to develop novel materials, tailoring the properties of the components. However, different morphology structures can be formed during the preparation, which could result in a wide diversity of mechanical and physical properties. The properties of polymer blends are most significantly influenced by the emerging range of phase inversion, which depends on the composition ratio and the viscosity ratio. In this paper various blends were prepared, utilizing polyethylene terephthalate (PET), polystyrene (PS) and two high density polyethylenes (HDPE), which differ in flowability. After preliminary homogenization by twin screw extruder, standard injection moulded specimen were prepared in order to present the effects of phase inversion on tensile properties, shrinkage and burning characteristics in binary polymer blends.


1996 ◽  
Vol 32 (8) ◽  
pp. 999-1010 ◽  
Author(s):  
D. Ramkumar ◽  
U.R. Vaidya ◽  
M. Bhattacharya ◽  
M. Hakkarainen ◽  
A.C. Albertsson ◽  
...  

1969 ◽  
Vol 26 (292) ◽  
pp. 529-535 ◽  
Author(s):  
Saburo Akiyama ◽  
Naohiro Inaba ◽  
Rokuro Kaneko

Polymer ◽  
1997 ◽  
Vol 38 (15) ◽  
pp. 3761-3766 ◽  
Author(s):  
Jeong Seok Oh ◽  
Jeong Gyu Jang ◽  
Young Chan Bae

1965 ◽  
Vol 38 (1) ◽  
pp. 62-75 ◽  
Author(s):  
M. H. Walters ◽  
D. N. Keyte

Abstract The phase contrast microscope has been used to examine blends of rubber polymers. Mixing on a molecular scale was never observed, the more homogeneous blends consisting of a pair of interlocking “networks” with a mesh diameter of about a micron. Blending was less perfect when the polymers were of widely different viscosities, and in the worst cases consisted of lumps of the stiffer polymer embedded in the softer polymer. Blends prepared by drying mixed solutions were always exceedingly heterogeneous. Physical properties of gum stocks were not greatly affected by the size of this heterogeneity, although there was evidence from electron microscope surface replicas that rupture surfaces tend to follow the interface between the polymers. The distribution of filler, zinc oxide and protein in blends was studied using a variety of techniques. It was found that these materials (and probably many other compounding ingredients) are not always evenly distributed between the polymers, and this may be expected to affect adversely the physical properties.


2021 ◽  
Vol 19 (1) ◽  
pp. 49-56
Author(s):  
Sanaa S. Najm

A polymer blends (PVA/PEG) have been prepared at various concentrations(6%, 8%, 10%, 12%, and 14%) g /ml by dissolving different weights from the powders{Pva and Peg}.The behavior of this mixture has been studied utilize some physical properties such as ultrasonic absorption coefficient, relaxation amplitude, specific acoustic Impedance, compression, bulk modulus, shear viscosity, and Reduced viscosity. The outcomes referenced that each of these characteristics increased with increasing concentration of polymeric solutions, "while compressibility decreased with increasing concentration solutions".


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