Transcription of RUBBER CHEMISTRY - Läroverket i Småland AB
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RUBBER CHEMISTRY - Läroverket i Småland AB
RUBBER CHEMISTRY MATADOR RUBBER Summary Rubbers - elastomers - are polymeric materials characterised by their ability of reversible deformation due to external deforming forces. Their deformation rate depends on the structure and molar mass of the deformed RUBBER and on external conditions of the deformation. This characteristics, referred to as elastic and/or hyper elastic deformation, is entropic in nature and results from the ability of RUBBER macromolecules to form a more organised state under influence of deforming forces without deformation of chemical bonds between atoms of the polymer chain or without deformation of their valence angles.
In industrial applications, it is obtained ... It is related to their low glass transition temperature Tg. Typical examples of such rubbers are poly-cis-1.4-butadiene and poly-cis-1.4-isoprene. They have Tg ... eventually high elastic state to viscoelastic state and above softening
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