scholarly journals Implicit Medium Model for Fractal Aggregate Polymer Nanocomposites: Linear Viscoelastic Properties

2019 ◽  
Vol 52 (5) ◽  
pp. 2021-2032 ◽  
Author(s):  
Yang Wang ◽  
Gaëtan Maurel ◽  
Marc Couty ◽  
François Detcheverry ◽  
Samy Merabia
Keyword(s):  
Polymer Nanocomposites ◽  
Viscoelastic Properties ◽  
Fractal Aggregate ◽  
Medium Model ◽  
Linear Viscoelastic

Preparation, Characterization and Processing of PCL/PHO Blends by 3D Bioplotting

2020 ◽  
Vol 35 (5) ◽  
pp. 458-470
Author(s):  
S. Gopi ◽  
B. A. Ramsay ◽  
J. A. Ramsay ◽  
M. Kontopoulou
Keyword(s):  
Viscoelastic Properties ◽  
Biomedical Applications ◽  
Synergistic Effects ◽  
Thermal And Mechanical Properties ◽  
Flow Properties ◽  
Immiscible Blends ◽  
Melt Compounding ◽  
Linear Viscoelastic ◽  
Matrix Morphology ◽  
Good Flow

Abstract Blends of polycaprolactone (PCL) and poly(3-hydroxyoctanoate) P(3HO) were prepared by melt compounding. These immiscible blends exhibited droplet-matrix morphology at compositions up to 30 wt% P(3HO). Even though the addition of amorphous P(3HO) decreased the crystallinity of PCL, the crystallization temperature of the blends increased by 6 to 7 8C. Blends containing up to 30 wt% P(3HO) had higher crystallization rates, and lower crystallization half-times compared to neat PCL. The viscosity of PCL decreased upon addition of P(3HO), making the blends suitable for processing using a 3D bioplotter. Compositions with 10 to 30 wt% P(3HO) were ideal for processing, because of their improved crystallization kinetics, reduced stickiness and good flow properties. Estimation of the interfacial tension by fitting the Palierne model to the linear viscoelastic properties of the blends revealed good compatibility, which gave rise to synergistic effects in the thermal and mechanical properties. The fibres prepared by 3D bioplotting maintained droplet matrix morphology, with finer particle size than the original compounded material. In addition to favourable viscosity and thermal properties, the extruded fibres containing 30 wt% P(3HO) had comparable modulus to the neat PCL, while exhibiting good ductility. These blends may be suitable alternatives to PCL for biomedical applications, because they provide a range of crystallinities, crystallization rates and viscosities.

A molecular dynamics simulation study of the viscoelastic properties of polymer nanocomposites

2002 ◽  
Vol 117 (20) ◽  
pp. 9478-9489 ◽  
Author(s):  
Grant D. Smith ◽  
Dmitry Bedrov ◽  
Liwei Li ◽  
Oleksiy Byutner
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Polymer Nanocomposites ◽  
Simulation Study ◽  
Viscoelastic Properties ◽  
Dynamics Simulation

scholarly journals Determination of linear viscoelastic properties of an entangled polymer melt by probe rheology simulations

2016 ◽  
Vol 93 (1) ◽  
Author(s):  
Mir Karim ◽  
Tsutomu Indei ◽  
Jay D. Schieber ◽  
Rajesh Khare
Keyword(s):  
Viscoelastic Properties ◽  
Polymer Melt ◽  
Linear Viscoelastic ◽  
Entangled Polymer

Temperature dependency of linear viscoelastic properties of a commercial low-fat soft cheese after frozen storage

2012 ◽  
Vol 109 (3) ◽  
pp. 475-481 ◽  
Author(s):  
Bárbara E. Meza ◽  
Roxana A. Verdini ◽  
Amelia C. Rubiolo
Keyword(s):  
Viscoelastic Properties ◽  
Frozen Storage ◽  
Temperature Dependency ◽  
Low Fat ◽  
Soft Cheese ◽  
Linear Viscoelastic

Oscillatory Measurements of Linear Viscoelastic Properties of Shear‐Thickening Polymer Solutions

1986 ◽  
Vol 30 (1) ◽  
pp. 43-54
Author(s):  
Søren Hvidt ◽  
John D. Ferry ◽  
Robert F. Landel
Keyword(s):  
Viscoelastic Properties ◽  
Polymer Solutions ◽  
Shear Thickening ◽  
Linear Viscoelastic

Evaluation of the Viscoelastic Properties of the Intact Medial Collateral Ligament in a Goat Model

1999 ◽  
Author(s):  
Theodore D. Clineff ◽  
Richard E. Debski ◽  
Sven U. Scheffler ◽  
John D. Withrow ◽  
Savio L.-Y. Woo
Keyword(s):  
Medial Collateral Ligament ◽  
Viscoelastic Properties ◽  
Analytical Approach ◽  
Cruciate Ligament ◽  
Collateral Ligament ◽  
Future Studies ◽  
Linear Viscoelastic ◽  
Viscoelastic Theory ◽  
Anterior Cruciate ◽  
Linear Viscoelastic Theory

Abstract The time and history dependent viscoelastic properties have been determined for the normal medial collateral ligament (MCL) of canine (Woo, 1981), porcine anterior cruciate ligament (Kwan, 1993), and human patellar tendon in a cadaver model (Johnson, 1994). The objective of this study was to use a combined experimental and analytical approach to quantify the viscoelastic properties of the intact MCL in a goat model. A thorough understanding of the viscoelastic properties at low strain levels is necessary to future studies of the healing MCL. The quasi-linear viscoelastic theory (QLV) (Fung, 1972) was used to characterize the properties of the MCL during stress relaxation.

LINEAR VISCOELASTIC PROPERTIES OF A MISCIBLE POLYMER BLEND SYSTEM

1992 ◽  
pp. 321-323 ◽  
Author(s):  
H.C. BOOIJ ◽  
J.H.M. PALMEN
Keyword(s):  
Polymer Blend ◽  
Viscoelastic Properties ◽  
Linear Viscoelastic
Sign in / Sign up

Export Citation Format

Share Document