scholarly journals Rheology of Highly Filled Polymers

2018 ◽  
Author(s):  
Christian Kukla ◽  
Ivica Duretek ◽  
Joamin Gonzalez-Gutierrez ◽  
Clemens Holzer
Keyword(s):  
Filled Polymers

Model Filled Polymers .11. Synthesis of Uniformly Crosslinked Polystyrene Microbeads

1991 ◽  
Author(s):  
Zheng-You Ding ◽  
Shenmin Ma ◽  
Dennis Kriz ◽  
J. J. Aklonis ◽  
R. Salovey
Keyword(s):  
Filled Polymers ◽  
Crosslinked Polystyrene

Theory of formation of the structure of closed-pore gas-filled polymers by foaming

1988 ◽  
Vol 24 (2) ◽  
pp. 223-230
Author(s):  
M. I. Gandel'sman ◽  
R. V. Matveenko ◽  
V. P. Budtov
Keyword(s):  
Filled Polymers ◽  
Closed Pore

Migration and Settling of Particulates in Filled Epoxies

2003 ◽  
Author(s):  
Lisa Mondy ◽  
Rekha Rao ◽  
Eric Lindgren ◽  
Amy Sun ◽  
Robert Lagasse ◽  
...  
Keyword(s):  
Particle Concentration ◽  
Particle Migration ◽  
Polymerization Reaction ◽  
Temperature Dependent ◽  
Filled Polymers ◽  
Post Test ◽  
Manufacturing Applications ◽  
Microscopy Data ◽  
Suspension Model ◽  
Epoxy Systems

Manufacturing applications for filled polymers include encapsulation of microelectronics and injection molding of composite parts. Predictive tools for simulating these manufacturing processes require knowledge of time- and temperature-dependent rheology of the polymer as well as information about local particle concentration. The overall system rheology is highly dependent on the particle concentration. The local particle concentration can change due to gravity, convection and shear-induced migration. For the epoxy systems of interest, an extent of reaction can be used to track the degree of cure. We couple the curing model with a diffusive flux suspension model [Zhang and Acrivos 1994] to determine the particle migration. This results in a generalized Newtonian model that has viscosity as a function of temperature, cure and concentration. Using this model, we examine settling of the particulate phase in both flowing and quiescent curing systems. We focus on settling in molds and flow in wide-gap counter-rotating cylinders. The heat transfer, including the exothermic polymerization reaction, must be modeled to achieve accurate results. The model is validated with temperature measurements and post-test microscopy data. Particle concentration is determined with x-ray microfocus visualization or confocal microscopy. Agreement between the simulations and experimental results is fair.

Initial stresses in reinforced and filled polymers

1975 ◽  
Vol 9 (1) ◽  
pp. 76-81 ◽  
Author(s):  
V. P. Stavrov ◽  
A. P. Velichko
Keyword(s):  
Initial Stresses ◽  
Filled Polymers

About Some D-C Conduction Processes in Carbon Black Filled Polymers

1976 ◽  
Vol 5 (1-2) ◽  
pp. 133-146 ◽  
Author(s):  
Jean-Pierre Reboul ◽  
Georges Moussalli
Keyword(s):  
Carbon Black ◽  
Filled Polymers

scholarly journals Flake-Filled Polymers for Corrosion Protection

2013 ◽  
Vol 46 (1) ◽  
pp. 18-26 ◽  
Author(s):  
Bryan Pajarito ◽  
Masatoshi Kubouchi
Keyword(s):  
Corrosion Protection ◽  
Filled Polymers

Static and dynamic electrical breakdown in conducting filled-polymers

1997 ◽  
Vol 241 (1-2) ◽  
pp. 328-333 ◽  
Author(s):  
L. Lamaignère ◽  
F. Carmona ◽  
D. Sornette
Keyword(s):  
Electrical Breakdown ◽  
Filled Polymers

scholarly journals MODIFICATION OF ELASTOMER FOR RESTORATION OF CASE PARTS OF AUTOTRACTOR ENGINEERING

2018 ◽  
Vol 13 (3) ◽  
pp. 90-95
Author(s):  
Роман Ли ◽  
Roman Li ◽  
Дмитрий Псарев ◽  
Dmitriy Psarev ◽  
Мария Киба ◽  
...  
Keyword(s):  
Heat Resistance ◽  
Experimental Studies ◽  
Polymeric Materials ◽  
Body Part ◽  
Body Parts ◽  
Filled Polymers ◽  
Adhesion Properties ◽  
Energy Inputs ◽  
Tractor Equipment ◽  
Comparative Results

Body parts are typical, most material-intensive and expensive parts. When repairing worn out hull details, the costs for repairing equipment are significantly reduced, in comparison with the manufacture of new ones, the consumption of metal, electricity, and environmental pollution is reduced. Unlike many other methods, the methods of restoring body parts with polymeric materials are technologically simple, do not require large energy inputs and high qualification of the personnel. Due to the polymer layer, the stresses in the contact zone of loaded bodies with the bearing raceways decrease and its durability increases, there is no fretting corrosion and the service life of the bearing and body part increases manyfold. The use of polymeric composites can significantly improve the efficiency of restoring body parts. This is due to increased thermal conductivity, thermal and heat resistance, lower cost of composites in comparison with non-filled polymers. A promising direction in improving the consumer properties of the material is the filling of the polymer matrix with nanoscale particles. The nanocomposite based on elastomer F-40 filled with aluminum and copper nanoparticles has been developed and thoroughly studied at the LSTU. The material is designed to restore the landing holes in the hull parts of the tractor equipment. The article presents the results of experimental studies and analysis of deformation-strength and adhesion properties of a nanocomposite, its optimal composition is justified. Comparative results of the study of heat resistance and thermal stability of the F-40 elastomer and a nanocomposite based on are presented. It is shown that the nanocomposite has higher consumer properties than the F-40 elastomer: the strength and endurance are increased to 1.3 times, the heat resistance is up to 123C, the aging coefficients are 1.8 times higher in strength, 1.4 times in deformation.

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