Dynamic Mechanical Properties of Cross-Linked Rubbers. VII. Butyl Rubber Networks

1974 ◽  
Vol 7 (5) ◽  
pp. 681-684 ◽  
Author(s):  
James F. Sanders ◽  
John D. Ferry
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Butyl Rubber ◽  
Dynamic Mechanical

Dynamic Mechanical Properties of a Number of Elastomers and Related Polymers from 4 to 250° K

1972 ◽  
Vol 45 (4) ◽  
pp. 1033-1042
Author(s):  
R. J. Morgan ◽  
L. E. Nielsen ◽  
R. Buchdahl
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Bond Angle ◽  
Dynamic Mechanical Properties ◽  
Molecular Packing ◽  
Butyl Rubber ◽  
Monomeric Unit ◽  
Dynamic Mechanical ◽  
Young’S Moduli ◽  
Cis And Trans

Abstract Young's modulus and mechanical damping have been measured down to 4° K for cis- and trans-polybutadienes, cis- and trans-polyisoprenes, butyl rubber, and random SBR copolymers. Trans-polybutadiene has two large damping peaks below Tg, trans-polyisoprene one peak, while the cis-polymers and butyl rubber show either no damping peaks or only very small ones below Tg. The low-temperature damping peaks of the trans-polymers might be explained by a type of crankshaft motion and by a special motion of the trans-monomeric unit which involves a simultaneous vibration and bond angle deformation. The high Young's moduli of the polybutadienes compared to the polyisoprenes and the SBR copolymers are explained by the good molecular packing of the polybutadienes.

Effect of curing time on mechanical and dynamic mechanical properties of butyl rubber

2015 ◽  
Vol 19 (sup6) ◽  
pp. S6-148-S6-152
Author(s):  
J. Wu ◽  
C. Bo ◽  
Y. Wang ◽  
B. Su ◽  
Q. Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Butyl Rubber ◽  
Curing Time ◽  
Dynamic Mechanical

Effect of Cyclic Deformations on the Dynamic-Mechanical Properties of Silica-Filled Butyl Rubber

2003 ◽  
Vol 288 (12) ◽  
pp. 971-979 ◽  
Author(s):  
Azza A. M. Ward ◽  
Bernhard Stoll ◽  
Wolfgang von Soden ◽  
Stephan Herminghaus ◽  
Ashraf Ahmed Mansour
Keyword(s):  
Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
Butyl Rubber ◽  
Dynamic Mechanical

Dynamic Mechanical Properties of a Carbon Black-Loaded Butyl Rubber Vulcanizate and a Carbon Black-Loaded Polyisobutylene

1982 ◽  
Vol 55 (5) ◽  
pp. 1403-1412 ◽  
Author(s):  
John D. Ferry ◽  
Edwin R. Fitzgerald
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Strain Amplitude ◽  
Dynamic Mechanical Properties ◽  
Butyl Rubber ◽  
Published Data ◽  
Dynamic Mechanical ◽  
Furnace Black ◽  
The Subject ◽  
Frequency Temperature

Abstract The dynamic mechanical properties of rubbers loaded with carbon black have been the subject of many investigations because of their importance in the performance of products, especially the energy dissipation, skid resistance, and other properties of vehicle tires. However, the important variables of frequency and temperature in oscillating deformations have usually been explored in fragmentary fashion. In particular, the degree to which these variables can be treated with frequency-temperature superposition appears to differ considerably depending on the type of compound investigated. In many cases, data have been insufficient to establish whether the essential criterion for superposition, namely, the same temperature dependence for all relaxation mechanisms, is satisfied. For this purpose, extensive measurements over wide ranges of closely spaced frequencies and temperatures are required. Such data are needed, in any case, to determine the responses of elements of a vehicle tire over the ranges of temperature and time scale to which they are subjected in use and to provide input information for thermo-mechanical modelling of power loss in tires. This paper is intended to be one of a series on dynamic mechanical properties of a variety of carbon black-loaded compounds over wide ranges of frequency and temperature. It describes results for a vulcanized butyl rubber loaded with a medium processing channel black, and the almost chemically identical linear polymer polyisobutylene loaded with a semireinforcing furnace black; these results are compared with previously published data for vulcanized butyl gum and pure polyisobutylene . The shear strain amplitude in these measurements is very small, of the order of 10−5 to 10−7, in a range of linear viscoelasticity as confirmed by sensitive tests, and thus the Mullins effect is avoided. The prominent dependence of viscoelastic properties on strain amplitude, as investigated by Payne and Watson and later workers, appears at considerably higher strains of 10−3 or more. Of course, the behavior in large deformations will be very different from that described here, but it is important to understand first the properties of the structure close to its equilibrium rest state.

Polyurethanes based on hydroxylated rapeseed oil: thermal and dynamic mechanical properties

2015 ◽  
Vol 37 (2) ◽  
pp. 162-167
Author(s):  
V.A. Vilensky ◽  
◽  
L.V. Kobrina ◽  
S.V. Riabov ◽  
Y.Y. Kercha ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Rapeseed Oil ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical
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