Predictive power in oil resistance of fluororubber and fluorosilicone rubbers based on three-dimensional solubility parameter theory

2019 ◽  
Vol 75 ◽  
pp. 380-386 ◽  
Author(s):  
Yuan Zhuo Wang ◽  
Li Yuan Bi ◽  
Heng Jie Zhang ◽  
Xiao Tian Zhu ◽  
Guang Yong Liu ◽  
...  
Keyword(s):  
Solubility Parameter ◽  
Predictive Power ◽  
Three Dimensional ◽  
Oil Resistance ◽  
Parameter Theory

scholarly journals Aromatic fluorocarbon mixtures. II. Carbon tetrachloride+hexafluorobenzene

1973 ◽  
Vol 26 (2) ◽  
pp. 431 ◽  
Author(s):  
S Ruenkrairergsa ◽  
NF Pasco ◽  
DV Fenby
Keyword(s):  
Carbon Tetrachloride ◽  
Solubility Parameter ◽  
Liquid Mixtures ◽  
Excess Volumes ◽  
Equimolar Mixture ◽  
Excess Enthalpies ◽  
Molar Excess ◽  
Carbon Tetra ◽  
Molar Excess Volumes ◽  
Parameter Theory

The molar excess enthalpies and molar excess volumes of carbon tetra- chloride + hexafluorobenzene have been measured at 298.15 K and 308.15 K. The values for the equimolar mixture at 298 15 K are 490 J mol-1 and 0.875 cm3 mol-1 respectively. The results are compared with the values for other liquid mixtures containing a fluorocarbon as one component, and discussed in terms of solubility parameter theory.

A Modification of the Coulomb-Mohr Theory of Fracture

1961 ◽  
Vol 28 (2) ◽  
pp. 259-268 ◽  
Author(s):  
Burton Paul
Keyword(s):  
Experimental Data ◽  
Cast Iron ◽  
Fracture Surface ◽  
Three Dimensional ◽  
Yield Locus ◽  
Satisfactory Explanation ◽  
Double Shear ◽  
Close Relationship ◽  
Modified Theory ◽  
Parameter Theory

The inability of the Coulomb-Mohr theory of fracture to explain the main features of compression, tension, and torsion tests on brittle materials is pointed out. It is shown that the introduction of suitably chosen tension cut-offs and “friction angles” removes this deficiency and leads to a satisfactory explanation of the fracture stresses and angles of fracture for these three simple tests. The modified Coulomb-Mohr theory is a three-parameter theory, but all three parameters in principle can be obtained from only two simple tests. It is shown that in the case of cast iron there is an extremely close relationship between cohesive resistance in shear and nominal ultimate strength in single or double shear. The modified theory fits the data of Coffin, Cornet, and Grassi on biaxial fracture of cast iron very well. The three-dimensional fracture surface is described and used to explain some apparently anomalous points in the experimental data. Finally, a hypothesis is advanced which explains the appearance of concavities in the yield locus for certain classes of materials.

Microscopic Solubility-Parameter Theory of Polymer Blends: General Predictions

1995 ◽  
Vol 28 (6) ◽  
pp. 2063-2080 ◽  
Author(s):  
Kenneth S. Schweizer ◽  
Chandralekha Singh
Keyword(s):  
Polymer Blends ◽  
Solubility Parameter ◽  
Parameter Theory

scholarly journals A new way to determine the three-dimensional solubility parameters of hydrogenated nitrile rubber and the predictive power

2013 ◽  
Vol 32 (6) ◽  
pp. 1128-1134 ◽  
Author(s):  
Guangyong Liu ◽  
Martin Hoch ◽  
Claus Wrana ◽  
Kevin Kulbaba ◽  
Guixue Qiu
Keyword(s):  
Predictive Power ◽  
Three Dimensional ◽  
Nitrile Rubber ◽  
Solubility Parameters

scholarly journals Studies in Solubility Parameter Theory for Mixed Solvent Systems

1972 ◽  
Vol 50 (6) ◽  
pp. 834-838 ◽  
Author(s):  
Avijit Purkayastha ◽  
John Walkley
Keyword(s):  
Carbon Tetrachloride ◽  
Solubility Parameter ◽  
Volume Fraction ◽  
Preferential Solvation ◽  
Solvent Mixture ◽  
Partial Molal Volume ◽  
Molal Volume ◽  
Saturation Solubility ◽  
Solvent Molecules ◽  
Parameter Theory

Data are presented for the saturation solubility and partial molal volume of iodine in a mixed benzene–cyclohexane solvent and for the saturation solubility of stannic iodide in the same solvent mixture. A successful interpretation of these data in terms of solubility parameter theory is possible if we define an effective volume fraction term. This term reflects the immediate solvent environment of the solute molecule with the preferential solvation of the solute by one of the solvent molecules. Data for iodine in a mixed carbon tetrachloride–benzene solvent mixture and for iodine in a carbon tetrachloride–perfluoroheptane mixture are also interpreted in terms of the proposed theory.

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