Evaluation of various reinforcements for maxillofacial silicone elastomers.
Various reinforcements have been evaluated according to their effect on the mechanical properties of a silicone elastomer used for the preparation of maxillofacial prosthetic compositions. Emphasis was given to silica reinforcing fillers since fibrillar reinforcements [e.g., short aramid, glass or high modulus polyethylene (UHMPE)] seemed not to improve mechanical properties. An optimal behaviour at filler concentration 35% was determined. As a measure of the crosslinking density, the swelling of specimens immersed in various solvents, at 25 degrees C, was also investigated.
Andreopoulos
A G
AG
Department of Chemical Engineering, National Technical University of Athens, Greece.
Evangelatou
M
M
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003432:Cross-Linking Reagents / Q000737:chemistry; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D004548:Elasticity; D005898:Glass / Q000737:chemistry; D006244:Hardness; D008422:Materials Testing; D008447:Maxillofacial Prosthesis; D008956:Models, Chemical; D011095:Polyethylenes / Q000737:chemistry; D011474:Prosthesis Design; D012822:Silicon Dioxide / Q000737:chemistry; D012826:Silicone Elastomers / Q000737:chemistry*; D012828:Silicones / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength; D014783:Viscosity
D003432:Cross-Linking Reagents; D004129:Dimethylpolysiloxanes; D011095:Polyethylenes; D012826:Silicone Elastomers; D012828:Silicones; D012997:Solvents; C013830:baysilon; D012822:Silicon Dioxide