Elastomeric materials industrial interest

The interest in high-temperature elastomeric materials stems from the high demand for such materials for application in advanced technologies, particularly the aerospace, defense, and computer industries. Such materials are expected to have long-term thermal, thermo-oxidative and hydrolytic stability at and above 300 to 350 °C and to also have the ability to maintain pronounced flexibility to well below ambient temperature. The elastomeric crossUnked network polymers of carboran-ylenesiloxanes and silarylene-siloxanes described in this chapter possess similar properties and are therefore ideal candidates for a wide variety of engineering applications under unusual service conditions. In addition, these network polymers also have the utility in other applications that may or may not directly relate to their... 

In recent years, synthetic mbber nanocomposites are of great interest for both academic researches and industrial applications because they frequently exhibit unexpected properties synergistically derived from the two or more components. The properties of elastomeric materials as thermal stability and chemical resistance are of relevant importance considering both economic and ecologic impacts in many different areas. 

Which is why, this book is addressed not only to chemists from both academia and industry, but to all those who are interested in the latest developments in the science of elastomeric materials. 

Acrylate polymers are often used in many applications that require good optical properties. However, they are unsuitable for use in the automotive industry because of their brittle characteristics. Thus, when natural rubber is blended with poly(methyl methacrylate), there is a big improvement in the elasticity of the brittle acrylate polymers. It is of interest that thermoplastic natural rubbers are relatively new products in the rubber industry and are fastgrowing items in the polymer market. The acrylate polymers blended with natural rubber can improve various properties of both the natural rubber and the acrylate polymers such as elasticity, adhesion, processability properties, and transparency. These materials are known for their excellent processability, characteristic of acrylate polymers, and their elasticity property provided by natural rubber, thus they exhibit the typical properties of elastomeric materials and can be processed with thermoplastic processing equipment used to prepare acrylate polymers. Many of their interesting properties have been widely developed for several industrial applications such as in the automotive industry, household appliances, medical devices, electrical cables, and headphone cables. ... 

The extreme thermal stability of icosahedral carboranes has long attracted the interest of polymer chemists seeking to develop new materials for high-temperature applications.1 Nevertheless, only the elastomeric poly(carborane-siloxane)s, for example 1, have ever been manufactured on an industrial scale.2 This situation reflects not only the very high cost of carborane-based starting materials, but also a failure to develop linkages between carborane cages which can match the stability of the carborane unit itself. 

A combination of carbon fiber, glass fiber or polyester fiber with phenolics leads to fiber reinforced phenolics that are called phenolic composites. Phenolic composites are interesting materials for the aircraft and aerospace industry because, in case of fire, they produce very low smoke density and low toxicity gases. Thermoplastic or elastomeric additives improve mechanical properties, adhesion and toughness of these composites but these additives cause a decrease in flame resistance [1,6],... 

When this idea was proposed at the conference Ojfshore Engineering with Elastomers in Aberdeen (1985) it raised considerable interest from all quarters of industry concerned with the elastomeric seals the oil companies, oil tool companies, rubber part/seal manufacturers and the raw material suppUers. Such a system, where the specification could be based on relevant tests, was welcomed, although the setting... 

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