Study on mechanical properties and antifriction of calcium powder filled rubber

2021 ◽  
Author(s):  
Deshang Han ◽  
Gang Yan ◽  
Shaoming Li ◽  
Yi Pan ◽  
Yihui Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Filled Rubber

Particles in model filled rubber: Dispersion and mechanical properties

2010 ◽  
Vol 31 (3) ◽  
pp. 263-268 ◽  
Author(s):  
H. Montes ◽  
T. Chaussée ◽  
A. Papon ◽  
F. Lequeux ◽  
L. Guy
Keyword(s):  
Mechanical Properties ◽  
Filled Rubber

Dynamic mechanical properties of a heavily filled rubber

1972 ◽  
Vol 4 (4-6) ◽  
pp. 534-537
Author(s):  
S. K. Ordzhonikidze ◽  
A. D. Margolin ◽  
P. F. Pokhil
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Filled Rubber

Strain Dependence of Dynamic Mechanical Properties of Carbon Black-Filled Rubber Compounds

1996 ◽  
Vol 69 (1) ◽  
pp. 15-47 ◽  
Author(s):  
J. D. Ulmer
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Strain Amplitude ◽  
Dynamic Mechanical Properties ◽  
Model Description ◽  
Strain Dependence ◽  
Dynamic Mechanical ◽  
Filled Rubber ◽  
Rubber Compounds ◽  
Viscous Modulus

Abstract The strain dependencies of dynamic mechanical properties of carbon black-filled rubber compounds have been modeled by Kraus. Evaluation of the Kraus model with carbon black loadings up to 110 phr shows that it provides a fairly good overall description of elastic modulus, G′, as a function of strain, γ. The model description of G′ strain dependence improves with decreased carbon black loading, and is very good with carbon black loadings of 50 phr and less. The model description of viscous modulus strain dependence, G″(γ), is less successful than the G′(γ) description. Several empirical modifications of the viscous modulus model are examined. The most improved model is a very good approximation to viscous modulus over a wide experimental strain-range. Its utility, and that of the Kraus G′(γ) model, are illustrated through calculation of simple shear dynamic properties from torsion property measurements on a solid cylinder, where the strain amplitude varies across the specimen radius. The models allow transformation of the apparent moduli, reported as functions of strain amplitude at the cylinder's outer edge, to their true counterparts, G′(γ) and G″(γ), as functions of uniform strain amplitude. Although the G′(γ) and modified G″(γ) models apply to a wide range of experimental strains, some uncertainties associated with each model's accuracy remain, and there are inconsistencies in the relation of one model to the other. Reservations associated with the models might be resolved through refined treatments of the test specimen geometries.

Dynamic Mechanical Properties of Precipitated Silica Filled Rubber: Influence of Morphology and Coupling Agent

2003 ◽  
Vol 76 (1) ◽  
pp. 145-159 ◽  
Author(s):  
Laurence Ladouce-Stelandre ◽  
Yves Bomal ◽  
Lionel Flandin ◽  
Dominique Labarre
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Mathematical Treatment ◽  
Interface Agents ◽  
Payne Effect ◽  
Dynamic Mechanical ◽  
Precipitated Silica ◽  
Vulcanized Rubber ◽  
Filled Rubber ◽  
Help Giving

Abstract Composites that incorporate precipitated silica into a vulcanized rubber were investigated for dynamic mechanical properties. Comparing different types of filler, it was found that the mean distance between particles did not alter Payne effect. On the contrary, the amount and morphology of the fillers played a major role on the macroscopic properties. The nature and amount of coupling or covering agents was also found to be an important parameter. A direct relationship between length and efficiency of interface agents was evidenced: longer silanes were more effective than shorter once independently from a covalent bounding to rubber. The set of studied parameters affecting Payne effect can be reduced to only two independents variables: the total amount of silica-rubber interface (a function of the amount of filler and its BET surface) and the quantity and nature of interface agent. From these data an attempt to relate the rubber to filler cohesion to Payne effect is proposed as well as a molecular mechanism derived from Maier and Göritz model. A mathematical treatment of the proposed mechanisms is currently being investigated that might help giving further insights on novel ways to further reduce Payne effect.

scholarly journals Analysis on Microstructure–Property Linkages of Filled Rubber Using Machine Learning and Molecular Dynamics Simulations

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2683
Author(s):  
Takashi Kojima ◽  
Takashi Washio ◽  
Satoshi Hara ◽  
Masataka Koishi ◽  
Naoya Amino
Keyword(s):  
Machine Learning ◽  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
High Stress ◽  
Classification Model ◽  
Machine Learning Techniques ◽  
Coarse Grained ◽  
Filled Rubber ◽  
Dynamics Simulations

A better understanding of the microstructure–property relationship can be achieved by sampling and analyzing a microstructure leading to a desired material property. During the simulation of filled rubber, this approach includes extracting common aggregates from a complex filler morphology consisting of hundreds of filler particles. However, a method for extracting a core structure that determines the rubber mechanical properties has not been established yet. In this study, we analyzed complex filler morphologies that generated extremely high stress using two machine learning techniques. First, filler morphology was quantified by persistent homology and then vectorized using persistence image as the input data. After that, a binary classification model involving logistic regression analysis was developed by training a dataset consisting of the vectorized morphology and stress-based class. The filler aggregates contributing to the desired mechanical properties were extracted based on the trained regression coefficients. Second, a convolutional neural network was employed to establish a classification model by training a dataset containing the imaged filler morphology and class. The aggregates strongly contributing to stress generation were extracted by a kernel. The aggregates extracted by both models were compared, and their shapes and distributions producing high stress levels were discussed. Finally, we confirmed the effects of the extracted aggregates on the mechanical property, namely the validity of the proposed method for extracting stress-contributing fillers, by performing coarse-grained molecular dynamics simulations.

scholarly journals The Effect of Glyceride Modified by Fatty Acid on Mechanical Properties of Silica filled Rubber Compounds

2013 ◽  
Vol 48 (2) ◽  
pp. 114-124 ◽  
Author(s):  
Dong-Wook Kim ◽  
Chang-Hwan Kim ◽  
Ho-Kyun Jung ◽  
Yong-Gu Kang
Keyword(s):  
Mechanical Properties ◽  
Fatty Acid ◽  
Filled Rubber ◽  
Rubber Compounds

Effects of secondary structure of fillers on the mechanical properties of silica filled rubber systems

Polymer ◽  
2001 ◽  
Vol 42 (23) ◽  
pp. 9523-9529 ◽  
Author(s):  
Fumito Yatsuyanagi ◽  
Nozomu Suzuki ◽  
Masayoshi Ito ◽  
Hiroyuki Kaidou
Keyword(s):  
Mechanical Properties ◽  
Secondary Structure ◽  
Filled Rubber

Effect of the microstructure of a filled rubber on its overall mechanical properties

2014 ◽  
Vol 225 (4-5) ◽  
pp. 1121-1140 ◽  
Author(s):  
Bing Jiang
Keyword(s):  
Mechanical Properties ◽  
Filled Rubber
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