The use of polymer materials in products offer great benefits such as reduced cost, improved properties and increased stabilty and lifetime. This is important to consider when subjecting a polymer to a load. The creep modulus decreases with time which may result in catastrophic failure after a certain time period.
The chemical structure of a polymer will determine all properties.
Polymer consit of macromolecules consiting of long molecule chains which contains different repeating units. Co-polymers conatins side chains that add unique properties. Depending on the chemical structure the a thermoplastic can be amorphous or semi-crystalline. Thermost, Rubber and Elastomers contains chemical cross-links between the macromolecules which offer new unqie properties.
Stabilisation and Degradation
A polymer is formed from chemical reactions. With time the chemical structure may be the subjected to degradation which will resutl in less performance.
Analysis & Characterisation
Stability and lifetime
Simulation & Modeling