SUBMITTED BYLAKSHMI VARIAR C V

SPECIFIC PROPERTIESLow cost &Easy procesibility.Excellent insulation properties & chemical resistanceToughness and flexibility even at low temperatures.BIO MEDICAL USETubes for various catheters ,hip joint, knee joint prosthesis

SPECIFIC PROPERTIESExcellent chemical ressistanceWeak permeability to water vapoursGood transparency and surface reflectionBIOMEDICAL USEYarn for surgery, sutures

SPECIFIC PROPERTIESChemical inertnessExceptional weathering and heat resistanceNon-adhesive, low coefficient of frictionBIOMEDICAL USEVascular and auditory prosthesis,catheters and tubes

SPECIFIC PROPERTIESelasticity modulus at compression, traction Exceptional resistance to abrasionHigh resistance to breakingVery high Remarkable elongation to breakBIO MEDICAL USESAdhesives, dental materials, blood pumps artificial heart and skin

SPECIFIC PROPERTIESResistance to abrasion and breakingStability to shock and fatigueLow friction coefficient,good thermal and chemical properties and permeable to gasesBIOMEDICAL USEPA6 tubes for intracardiac catheters,urethal sound, surgical sutures,dialysis device component,PA66 heart mirtal valves

SPECIFIC PROPERTIESOptical properties &Exceptional transparencyExcellent chemical resistivityHighly bio compatableBIO-MEDICAL USESBone cement, intraocular lenses, contact lenses, fixation of artificial prosthesis, dentures

SPECIFIC PROPERTIESGood thermal stabilityResistance to atmospheric and oxidative agentsPhysiological inertnessBIOMEDICAL USEEncapsulant of pace makerBurn treatment ,shuntMammary prosthesis, valve, catheters, contact lenses etc

Hydrogels are network of polymers which are water insoluble, sometimes found as colloidal gel in which water is dispersion mediumHydrogels are highly absorbent natural or synthetic polymers

NaturalSynthetic

MonomersCopolymerizeMacromersCrosslinkPrepolymerCrosslinkHydrogelMonomerHydrogelPolymerizeInterpenetrating Network (IPN)CrosslinkCopolymerizePolymerize