Structural damages of maxillofacial biopolymers under solar aging

δείτε την πρωτότυπη σελίδα τεκμηρίου
στον ιστότοπο του αποθετηρίου του φορέα για περισσότερες πληροφορίες και για να δείτε όλα τα ψηφιακά αρχεία του τεκμηρίου*



Structural damages of maxillofacial biopolymers under solar aging (EN)

Marinos-Kouris, D (EN)
Frangou, MJ (EN)
Krokida, MK (EN)
Maroulis, ZB (EN)
Eleni, PN (EN)
Polyzois, GL (EN)

journalArticle (EN)

2014-03-01T01:27:18Z
2007 (EN)


Additional types of silicone biopolymers are widely used in maxillofacial prosthetics. Therefore, the knowledge of the solar radiation's effect on their structural stability is highly important. Four different industrially synthesized biomaterials were examined, called Episil Europe 1, Europe 2, Europe 3 and Africa 3, which were exposed to solar radiation (UVA, UVB) for eight different time periods (from 8 to 168 h). Structural damages due to irradiation exposure were investigated by mechanical tests (compression) and differential scanning calorimetry (DSC) methods. Simple mathematical models were developed, containing parameters with physical meaning such as maximum stress (σmax), maximum strain (ε), elasticity parameter (E), and viscoelastic parameter (p), for the compression test, and melting temperature (T m) and Enthalpy in melting point (Heat) for DSC. With increasing irradiation time their maximum stress and strain decreased significantly, and the materials lost their elasticity and molecular stability. A decrement in their melting points and heats was observed as irradiation time was increasing. Finally, experimental results demonstrated that solar radiation has a severe effect on the structural stability of the examined biomaterials. © 2007 Springer Science+Business Media, LLC. (EN)

Engineering, Biomedical (EN)
Materials Science, Biomaterials (EN)

Mechanical Testing (EN)
solar energy (EN)
Thermal aging (EN)
Silicone biopolymers (EN)
Humans (EN)
Elasticity (EN)
Melting Temperature (EN)
enthalpy (EN)
Biopolymers (EN)
Differential Scanning Calorimetry (EN)
Thermodynamics (EN)
Structural Stability (EN)
viscoelasticity (EN)
biopolymer (EN)
priority journal (EN)
Silicones (EN)
Maxillofacial Prosthesis (EN)
Prosthetics (EN)
Tissue Engineering (EN)
synthesis (EN)
Differential scanning calorimetry (EN)
melting point (EN)
Structural damages (EN)
Materials Testing (EN)
Solar aging (EN)
article (EN)
Silicone Elastomers (EN)
Synthesis (chemical) (EN)
Biomechanics (EN)
Compressive Strength (EN)
Solar Radiation (EN)
Maxillofacial prosthetics (EN)
differential scanning calorimetry (EN)
Sunlight (EN)
Calorimetry, Differential Scanning (EN)
Mathematical Model (EN)
compression (EN)
Compression Test (EN)
stress strain relationship (EN)

Journal of Materials Science: Materials in Medicine (EN)

Αγγλική γλώσσα

SPRINGER (EN)




*Η εύρυθμη και αδιάλειπτη λειτουργία των διαδικτυακών διευθύνσεων των συλλογών (ψηφιακό αρχείο, καρτέλα τεκμηρίου στο αποθετήριο) είναι αποκλειστική ευθύνη των αντίστοιχων Φορέων περιεχομένου.