Topic
Natural rubber
About: Natural rubber is a research topic. Over the lifetime, 111249 publications have been published within this topic receiving 763842 citations. The topic is also known as: India rubber & caoutchouc.
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Book•
01 Jan 1978
TL;DR: Gent et al. as mentioned in this paper described the molecular basis of rubber-like elasticity and showed that the strength of elastomers can be improved by reinforcement of Elastomers by Particulate Fillers.
Abstract: A.N. Gent, Rubber Elasticity: Basic Concepts and Behavior. R.P. Quirk and M.M. Morton, Polymerization. G. Ver Strate and D.J. Lohse, Structure Characterization in the Science and Technology of Elastomers. B. Erman and J.E. Mark, The Molecular Basis of Rubberlike Elasticity. O. Kramer, S. Hvidt, and J.D. Ferry, Dynamic Mechanical Properties. J.L. White, Rheological Behavior of Processing of Unvulcanized Rubber. A.Y. Coran, Vulcanization. A.I. Medalia and G. Kraus, Reinforcement of Elastomers by Particulate Fillers. W.W. Barbin and M.B. Rodgers, The Science of Rubber Compounding. A.N. Gent, Strength of Elastomers. A.F. Halasa, J.M. Massie, and R.J. Ceresa, The Chemical Modification of Polymers. P.J. Corish, Elastomer Blends. B.P. Grady and S.L. Cooper, Thermoplastic Elastomers. F.J. Kovac and M.B. Rodgers, Tire Engineering. Chapter References. Subject Index.
875 citations
TL;DR: In this article, the dynamic shear modulus at very high strains, (G∞), of carbon black filler loaded vulcanizates is regarded as due to the product of hydrodynamic interaction due to filler particles, and a second factor for which evidence is given suggesting that it arises from a few strong linkages which are known to link filler particles to the matrix.
Abstract: The dynamic shear modulus at very high strains, (G∞), of carbon black filler loaded vulcanizates is regarded as due to the product of two factors : (a) a hydrodynamic interaction due to filler particles, and (b) a second factor for which evidence is given suggesting that it arises from a few strong linkages which are known to link filler particles to the matrix. Experimentally a measure of (a) has been obtained from model vulcanizates using glass spheres as the filler, and of (b) from equilibrium swelling measurements on rubber vulcanizates containing carbon black. Quantitatively, the difference between the shear modulus of the pure gum vulcanizate, Gpure gum, and G∞ can be explained by these measurements.
874 citations
TL;DR: Polydimethylsiloxane (PDMS) is a commercially available physically and chemically stable silicone rubber as mentioned in this paper, which has a unique flexibility with a shear elastic modulus due to one of the lowest glass transition temperatures of any polymer.
Abstract: Polydimethylsiloxane (PDMS) is a commercially available physically and chemically stable silicone rubber. It has a unique flexibility with a shear elastic modulus due to one of the lowest glass transition temperatures of any polymer . Further properties of PDMS are a low change in the shear elastic modulus versus temperature , virtually no change in G versus frequency and a high compressibility. Because of its clean room processability, its low curing temperature, its high flexibility, the possibility to change its functional groups and the very low drift of its properties with time and temperature, PDMS is very well suited for micromachined mechanical and chemical sensors, such as accelerometers (as the spring material) and ISFETs (as the ion selective membrane). It can also be used as an adhesive in wafer bonding, as a cover material in tactile sensors and as the mechanical decoupling zone in sensor packagings.
868 citations
TL;DR: In the past few years, an enormous amount of work has been reported on the progress in the application of conventional fillers and the development of new products to improve the reinforcement of rubber, dynamic properties in particular as mentioned in this paper.
Abstract: In the past few years, an enormous amount of work has been reported on the progress in the application of conventional fillers and the development of new products to improve the reinforcement of rubber, dynamic properties in particular. While all agree that the filler as one of the main components of the filled-rubber composite, has a very important role in improving the dynamic performances of the rubber products; many new ideas, theories, practices, phenomena, and observations about how and especially why the filler alters the dynamic stress-strain response have been presented. This, of course, suggests that not only is the real world of the filled rubber complex and sophisticated but also multiple mechanisms may be involved. However, it must be admitted that the possibility exists for explaining the effect of all fillers on rubber properties ultimately in similar and relatively nonspecific terms, i.e., the phenomenon related to all filler parameters should follow a general rule or principle. I...
861 citations
Book•
01 Jan 1988
TL;DR: In this article, the elastic properties of polymeric solids and their properties of rubber are discussed. But they focus on the structure of the molecule rather than the properties of the solids.
Abstract: Introduction. 1: Structure of the molecule. 2: Structure of polymeric solids. 3: The elastic properties of rubber. 4: Viscoelasticity. 5: Yield and fracture. 6: Reinforced polymers. 7: Forming. 8: Design. Further reading, Answers, Index
790 citations