DIFFERENT PLASTICS,THEIR PROPERTIES AND HENCE THEIR RELEVANT APPLICATIONS

BY Tipanna MBY Tipanna M ((PhD)PhD)
DIFFERENT PLASTICS AND THEIRDIFFERENT PLASTICS AND THEIR
PROPERTIES AND HENCE THEIRPROPERTIES AND HENCE THEIR
RELEVANT APPLICATIONSRELEVANT APPLICATIONS

What are plastics?What are plastics?
Plastics are material that is made of mainlyPlastics are material that is made of mainly
of macromolecules, that can be Given anyof macromolecules, that can be Given any
shape by external heat & pressure.shape by external heat & pressure.

Plastics as versatile materialsPlastics as versatile materials
 Light weightLight weight
 Easily processed with excellent finishingEasily processed with excellent finishing
 They possess very good strength and toughness.They possess very good strength and toughness.
 They are corrosion resistant and chemically inert.They are corrosion resistant and chemically inert.
 They possess good thermal and electricalThey possess good thermal and electrical
insulating property.insulating property.
 Plastic is cheap to produce.Plastic is cheap to produce.
 Plastic can be a recycledPlastic can be a recycled

Few Applications and theirFew Applications and their
PropertiesProperties
Construction and structuralConstruction and structural
componentscomponents
Strength, load bearing PropertiesStrength, load bearing Properties
Automotive partsAutomotive parts Stiffness, Dynamic stabilityStiffness, Dynamic stability
Cable industriesCable industries Electrical properties, e.gElectrical properties, e.g InsulatingInsulating
Home appliancesHome appliances Dimensional stability, InsulatingDimensional stability, Insulating
properties, Good Finish withproperties, Good Finish with
aesthetic look etcaesthetic look etc
Engineering applicationEngineering application Strength, stiff and better frictionalStrength, stiff and better frictional
and dynamic properties,and dynamic properties,
Optical applicationsOptical applications TransparencyTransparency
PackagingPackaging Flexibility, printabilityFlexibility, printability

Why plastics products fails in endWhy plastics products fails in end
ApplicationApplication
 Material / phenomenological causes ofMaterial / phenomenological causes of
plastics failureplastics failure
 Human causes of plastic product failureHuman causes of plastic product failure

Material / phenomenological causesMaterial / phenomenological causes
of plastics failureof plastics failure

Human causes of plastic productHuman causes of plastic product
failurefailure

Steps followed in selection ofSteps followed in selection of
plastics materialsplastics materials
 Understanding of specific requirements of plasticsUnderstanding of specific requirements of plastics
applicationapplication
 Identifications of various plastics which meetsIdentifications of various plastics which meets
requirements plastic applicationrequirements plastic application
 After careful consideration of all aspect such asAfter careful consideration of all aspect such as
plastic properties, cost, aesthetic look etc may beplastic properties, cost, aesthetic look etc may be
lessened to few.lessened to few.
 Final selection is then determined by testingFinal selection is then determined by testing

Knowledge of PlasticsKnowledge of Plastics
 Selection of plastic material for a specificSelection of plastic material for a specific
application is a challenging task.application is a challenging task.
 Failures due to poor material selection are veryFailures due to poor material selection are very
common in the plastics industrycommon in the plastics industry
 Knowledge of various plastics and their propertiesKnowledge of various plastics and their properties
are of prime importantare of prime important

Classification of plasticsClassification of plastics
 Thermoplastics and thermo setThermoplastics and thermo set
 Commodity and engineeringCommodity and engineering
 Amorphous and semi crystallineAmorphous and semi crystalline
 Function of temperatureFunction of temperature
 Recycling classificationRecycling classification

Thermoplastics and Thermo setThermoplastics and Thermo set

Amorphous and CrystallineAmorphous and Crystalline
(Semicrystalline)(Semicrystalline)

Thermoplastics and thermo setThermoplastics and thermo set

Commodity and EngineeringCommodity and Engineering

Function of temperatureFunction of temperature

Recycling ClassificationRecycling Classification

Properties of plasticsProperties of plastics
 PhysicalPhysical
 MechanicalMechanical
 ThermalThermal
 ElectricalElectrical
 ChemicalsChemicals
 AestheticAesthetic

Physical PropertiesPhysical Properties
 DensityDensity
 Molecular weight (MW) and MolecularMolecular weight (MW) and Molecular
weight Distribution (MWD)weight Distribution (MWD)
 Viscosity, MFI etc.Viscosity, MFI etc.

Mechanical PropertiesMechanical Properties
 Tensile strength, kg/cm, MPaTensile strength, kg/cm, MPa
 % Elongation% Elongation
 Tensile modulus, MPaTensile modulus, MPa
 Flexural modulus, MPaFlexural modulus, MPa
 Izod impact, Notched, J/cmIzod impact, Notched, J/cm
 Coefficient of FrictionCoefficient of Friction

Electrical propertiesElectrical properties
 Dielectric constantDielectric constant
 Break down Voltage, V/milBreak down Voltage, V/mil
 Electrical resistivity, Ohm.cmElectrical resistivity, Ohm.cm
 Surface resistivity,OhmSurface resistivity,Ohm

Thermal PropertiesThermal Properties
 Melting PointMelting Point
 TgTg
 Vicat softening pointVicat softening point
 HDTHDT

Chemical PropertiesChemical Properties
 Resistance To AcidResistance To Acid
 Resistance To alkali/BaseResistance To alkali/Base
 Resistance to OilResistance to Oil
 Resistance to SolventsResistance to Solvents
 Resistance to other specified chemicalsResistance to other specified chemicals

Aesthetic PropertiesAesthetic Properties
 GlossGloss
 PrintabilityPrintability
 PaintabilityPaintability
 Metalisation etc.Metalisation etc.

Standard plastics -1Standard plastics -1
(Semi Crystalline)(Semi Crystalline)
 LDPELDPE
 HDPEHDPE
 PPPP

LDPELDPE
AdvantagesAdvantages
 Cheap,Cheap,
 good chemical resistance.good chemical resistance.
 High impact strength at low temperatures.High impact strength at low temperatures.
 Excellent electrical properties.Excellent electrical properties.
 Can be processed by all conventional methods.Can be processed by all conventional methods.
 Can be transparent in thin film form.Can be transparent in thin film form.
DisadvantagesDisadvantages
 Low strength,Low strength,
 stiffness and maximum operating temperature.stiffness and maximum operating temperature.
 Flammable. Poor UV resistance.Flammable. Poor UV resistance.
 High gas permeability ( particularly CO2 ).High gas permeability ( particularly CO2 ).
 Susceptible to environmental stress cracking.Susceptible to environmental stress cracking.
ApplicationsApplications
Chemically resistant fittings, bowls, lids, gaskets, toys,Chemically resistant fittings, bowls, lids, gaskets, toys,
containers, packaging film, film liners, squeeze bottles.containers, packaging film, film liners, squeeze bottles.
Heat-seal films for metal laminates. Pipe, cableHeat-seal films for metal laminates. Pipe, cable
covering, core in UHF cables.covering, core in UHF cables.

HDPEHDPE
 Good chemical resistance .Good chemical resistance .
 High impact strength with good rigidity .High impact strength with good rigidity .
 Excellent electrical properties.Excellent electrical properties.
 Approved for direct food contact.Approved for direct food contact.
 Good machinability.Good machinability.
 Can be processed by all conventional methods.Can be processed by all conventional methods.
 Low strength,Low strength,
 stiffness and maximum operating temperature.stiffness and maximum operating temperature.
 Flammable. Poor UV resistance.Flammable. Poor UV resistance.
 Poor environmental stress cracking,Poor environmental stress cracking,
 Difficult to decorate, Poor creep resistanceDifficult to decorate, Poor creep resistance
Grades specially designed to meet demanding applicationsGrades specially designed to meet demanding applications
like high-pressure pipes, telecom ducts, carrier bags,like high-pressure pipes, telecom ducts, carrier bags,
woven sacks, and injection and blow moulded products forwoven sacks, and injection and blow moulded products for
food packaging and chemical storage. Tanks, tray etc.food packaging and chemical storage. Tanks, tray etc.

PPPP
 Compared to low or high density polyethylene,Compared to low or high density polyethylene,
 it has a lower impact strength,it has a lower impact strength,
 superior working temperature and tensile strength.superior working temperature and tensile strength.
 Living hinge, Withstand high shear rate,Living hinge, Withstand high shear rate,
 Higher flexure strengthHigher flexure strength
 Poor dimensional accuracy.Poor dimensional accuracy.
 Low mechanical and thermal properties.Low mechanical and thermal properties.
 Poor resistance to organic solvents.Poor resistance to organic solvents.
 Degraded by UV. Flammable,Degraded by UV. Flammable,
 Low temperature impact strength is poor .Low temperature impact strength is poor .
 Low strength, stiffness and maximum operatingLow strength, stiffness and maximum operating
temperature. Poor environmental stress cracking. Not easilytemperature. Poor environmental stress cracking. Not easily
decorated, High thermal expansiondecorated, High thermal expansion
House ware, food packaging containers, due do high impactHouse ware, food packaging containers, due do high impact
properties use in ropes, fishing nets. Automotive parts likeproperties use in ropes, fishing nets. Automotive parts like
bumpers, battery cashing etc. PP fiber used in makingbumpers, battery cashing etc. PP fiber used in making

Standard plastics -2Standard plastics -2
(Amorphous)(Amorphous)
 PSPS
 PVCPVC
 PMMAPMMA

PSPS
 Low Cost,Low Cost,
 Non HygroscopicNon Hygroscopic
 Good Optical Clarity,Good Optical Clarity,
 Easily ProcessedEasily Processed
 Good Thermal Stability,Good Thermal Stability,
 Good Property RetentionGood Property Retention
 Good Creep Resistance,Good Creep Resistance,
 Easily Decorated, printabilityEasily Decorated, printability
 Homopolymers are brittle,Homopolymers are brittle,
 Flammable, Poor solvent resistance,Flammable, Poor solvent resistance,
 Subject to stress and environmental cracking,Subject to stress and environmental cracking,
 Poor thermal stabilityPoor thermal stability
House ware, thermoformed article like glass, cups etc.House ware, thermoformed article like glass, cups etc.
Foamed polystyrene as decorative materials andFoamed polystyrene as decorative materials and
insulation. Decorative item s like beads, bangle, scalesinsulation. Decorative item s like beads, bangle, scales
etc. cases, boxes, and calculators,etc. cases, boxes, and calculators,
..

PVCPVC
 Versatile plastics very Rigid to very flexibleVersatile plastics very Rigid to very flexible
 Relatively inexpensive,Relatively inexpensive,
 Good weatherabilityGood weatherability
 Easy to decorate, Excellent abrasion, cut through,Easy to decorate, Excellent abrasion, cut through,
and solder resistance,and solder resistance,
 Heat shrinkableHeat shrinkable
 Flame retardant, Lightweight compared to steelFlame retardant, Lightweight compared to steel
alternatives, Good insulatoralternatives, Good insulator
 Hydrochloric gas can be formed when burned,Hydrochloric gas can be formed when burned,
 Not good for food packaging because of plasticizerNot good for food packaging because of plasticizer
leakage,leakage,
 Non-biodegradable, Unable to use in EuropeNon-biodegradable, Unable to use in Europe
(banned),(banned),
 Can be highly reactive when mixed with acetalCan be highly reactive when mixed with acetal
PVC is most widely used plastics, Cables, RigidPVC is most widely used plastics, Cables, Rigid
pipes for land irrigation, leather cloth, calendar film,pipes for land irrigation, leather cloth, calendar film,
extruded profile etc. Shoes and Footwearextruded profile etc. Shoes and Footwear

PMMAPMMA
 Good optical properties,Good optical properties,
 Good mechanical strength and hardness ,Good mechanical strength and hardness ,
 Good chemicals resistance,Good chemicals resistance,
 Good UV resistance, Good thermal stability,Good UV resistance, Good thermal stability,
 Good scratch resistance ( not as good as glass)Good scratch resistance ( not as good as glass)
 Excellent weather resistance.Excellent weather resistance.
 Difficult to process,Difficult to process,
 Brittle, Poor fatigue resistance,Brittle, Poor fatigue resistance,
 poor impact resistance,poor impact resistance,
 Poor solvent resistancePoor solvent resistance
Appliances, Lighting Fixtures Optical Applications,Appliances, Lighting Fixtures Optical Applications,
Household Goods, Decorative Displays, Advertisement etcHousehold Goods, Decorative Displays, Advertisement etc

Standard plastics-3Standard plastics-3
(Styrenics)(Styrenics)
 HIPSHIPS
 SANSAN
 ABSABS

HIPSHIPS
 Versatile economical impact resistance,Versatile economical impact resistance,
 Excellent machinabilityand easy to fabricate,Excellent machinabilityand easy to fabricate,
 Good dimensional stability,Good dimensional stability,
 Excellent aesthetic qualities,Excellent aesthetic qualities,
 Easy to paint and glue,Easy to paint and glue,
 Low cost, Glossy, FDA compliantLow cost, Glossy, FDA compliant
 Poor solvent resistance,Poor solvent resistance,
 Flammable, Poor solvent resistance,Flammable, Poor solvent resistance,
 Subject to stress and environmental cracking,Subject to stress and environmental cracking,
 Poor thermal stability, Comparatively low strength.Poor thermal stability, Comparatively low strength.
Consumer products: Appliance components, toy, TV andConsumer products: Appliance components, toy, TV and
audio-visual equipment parts, recording tape cassettes,audio-visual equipment parts, recording tape cassettes,
bicycle trailer, toys, low strength structural components,bicycle trailer, toys, low strength structural components,
housing, covers, Thermoformed food and non foodhousing, covers, Thermoformed food and non food
packaging, plates, dishes etcpackaging, plates, dishes etc

SANSAN
 IT higher strength, rigidity, and chemical resistance thanIT higher strength, rigidity, and chemical resistance than
polystyrene,polystyrene,
 SAN’s brilliant surface has great depth of color.SAN’s brilliant surface has great depth of color.
 It looks good and feels good. Good processability, High thermalIt looks good and feels good. Good processability, High thermal
stablestable
 SAN is not quite as clear as crystal polystyrene Poor solventSAN is not quite as clear as crystal polystyrene Poor solvent
resistance,resistance,
 Low thermal capability, Low impact strengthLow thermal capability, Low impact strength
 Yellows more quickly than PS,Yellows more quickly than PS,
 Higher processing temperatures,Higher processing temperatures,
 Flammable with high smoke generation ,Flammable with high smoke generation ,
 Subject to stress and environmental cracking, High priceSubject to stress and environmental cracking, High price
The combination of transparency and resistance to oils, fats andThe combination of transparency and resistance to oils, fats and
cleaning agents make SAN very suitable for use in the kitchen ascleaning agents make SAN very suitable for use in the kitchen as
mixing bowls and basins and fittings for refrigerators . Themixing bowls and basins and fittings for refrigerators . The
pleasing appearance especially when coloured and the ease ofpleasing appearance especially when coloured and the ease of
printing on SAN has allowed a number of applications in theprinting on SAN has allowed a number of applications in the
bathroom (toothbrushes and bathroom fittings) and cosmeticbathroom (toothbrushes and bathroom fittings) and cosmetic
packagingpackaging

ABSABS
 ABS possesses outstanding impact strength and highABS possesses outstanding impact strength and high
mechanical strength, which makes it so suitable for toughmechanical strength, which makes it so suitable for tough
consumer products.consumer products.
 ABS has good dimensional stability and electrical insulatingABS has good dimensional stability and electrical insulating
properties.properties.
 Easy processability and machinability.Easy processability and machinability.
 Paintability, Printbility and metalisation is possiblePaintability, Printbility and metalisation is possible
 Limited weathering resistanceLimited weathering resistance
 Moderate heat, moisture and chemical resistanceModerate heat, moisture and chemical resistance
 Relatively high cost,Relatively high cost,
 Flammable with high smoke generationFlammable with high smoke generation
ABS applications are extremely broad, falling betweenABS applications are extremely broad, falling between
commodity plastics and the engineering resins. ABS fills thecommodity plastics and the engineering resins. ABS fills the
property requirement for many parts at a reasonable price .property requirement for many parts at a reasonable price .
Automotive Applications, Electrical/Electronic Applications,Automotive Applications, Electrical/Electronic Applications,
General Purpose ( Housings) Appliances, BusinessGeneral Purpose ( Housings) Appliances, Business
Equipment, Appliance Components, Thin-walled Part,Equipment, Appliance Components, Thin-walled Part,
Automotive Interior Parts, Computer Components and manyAutomotive Interior Parts, Computer Components and many
moremore

Alloys and blends ABSAlloys and blends ABS
ABS gradesABS grades CompositionComposition AdvantagesAdvantages
General purpose gradesGeneral purpose grades Range of grades by changingRange of grades by changing
monomer composition andmonomer composition and
MFIMFI
Rigid, stiff, printability,Rigid, stiff, printability,
insulation, Dimensionalinsulation, Dimensional
stabilitystability
Flame retardantFlame retardant Flame retardant additives,Flame retardant additives,
Blend of ABS,-PVC, Blend ofBlend of ABS,-PVC, Blend of
ABS-PCABS-PC
Flame retardencyFlame retardency
High service temperatureHigh service temperature Blend of ABS-PCBlend of ABS-PC HDT increasesHDT increases
High GlossHigh Gloss PMMA-ABS blendPMMA-ABS blend High GlossHigh Gloss
TransparentTransparent MMA-ABS co polymerMMA-ABS co polymer TransparentTransparent
High Rigid and temp.High Rigid and temp. Glass filled ABSGlass filled ABS Very rigid and higherVery rigid and higher
HDTHDT

Effect of filler in Engineering plasticsEffect of filler in Engineering plastics

Engineering plasticsEngineering plastics
 NylonsNylons
 PCPC
 PolyesterPolyester
 Polyacetal (POM)Polyacetal (POM)
 UHMWPEUHMWPE
 PPOPPO
 PSFPSF

Nylon 6Nylon 6
 Low AbrasionLow Abrasion
 Reduces NoiseReduces Noise
 Good at DampeningGood at Dampening
 Good Glide CharactersGood Glide Characters
 Good Chemical StabilityGood Chemical Stability
 Low Coefficient of FrictionLow Coefficient of Friction
 High Strength and StiffnessHigh Strength and Stiffness
 High Heat Deflection TemperatureHigh Heat Deflection Temperature
 High heat deflection TemperatureHigh heat deflection Temperature
 Goods Sliding Properties vs. Steel and POMGoods Sliding Properties vs. Steel and POM
Relatively high cost, Highly hygroscopicRelatively high cost, Highly hygroscopic
Fibre : Tyre chord, belt, parachute, textile cloth,Fibre : Tyre chord, belt, parachute, textile cloth,
fishnet, industrial cloth, brush etc. packagingfishnet, industrial cloth, brush etc. packaging
films, engineering componets, machine parts,films, engineering componets, machine parts,
automotive parts etc.automotive parts etc.

PCPC
 TransparentTransparent
 Extremely high impact.Extremely high impact.
 High dimensional stability.High dimensional stability.
 High mechanical strength.High mechanical strength.
 Good chemical resistance.Good chemical resistance.
 Good insulating properties.Good insulating properties.
 High resistance to radiation.High resistance to radiation.
 High temperature resistance.High temperature resistance.
Relatively high cost, Difficult to process. Thermal degradation on longRelatively high cost, Difficult to process. Thermal degradation on long
exposure. It has fair chemical resistance.exposure. It has fair chemical resistance.
 Hosings, Coil bodies, Caps and covers, Realy components, All typesHosings, Coil bodies, Caps and covers, Realy components, All types
of lights, For insulating parts, bottles for food packaging etc.of lights, For insulating parts, bottles for food packaging etc.

PBTPBT
 Good Electrical propertiesGood Electrical properties
 Good hydrolysis resistance;Good hydrolysis resistance;
 High melt strength;High melt strength;
 High flexural modulusHigh flexural modulus
 Excellent processing Property:Excellent processing Property:
 Stability in processing;Stability in processing;
 Low coefficient of thermal expansion;Low coefficient of thermal expansion;
 Low moisture absorption;Low moisture absorption;
 Good abrasion resistance etc.Good abrasion resistance etc.
 Very low shrinkageVery low shrinkage

Relatively high cost, affected by acid and alkali. FlamableRelatively high cost, affected by acid and alkali. Flamable
and UV sensetiveand UV sensetive
Polybutylene terephthalate is used for housings in electricalPolybutylene terephthalate is used for housings in electrical
engineering, but also in automotive construction as plugengineering, but also in automotive construction as plug
connectors and in households for example in showerheads orconnectors and in households for example in showerheads or
irons. It is also found processed into fibers in toothbrushesirons. It is also found processed into fibers in toothbrushes

Poly acetals (POM)Poly acetals (POM)
 Good MachinabilityGood Machinability
 Good UV-resistanceGood UV-resistance
 Low Creep TendencyLow Creep Tendency
 High Thermal StabilityHigh Thermal Stability
 High Abrasion ResistanceHigh Abrasion Resistance
 High Dimensional StabilityHigh Dimensional Stability
 Resistant to stress CracksResistant to stress Cracks
 Low Absorption of MoistureLow Absorption of Moisture
 Good Electrical PropertiesGood Electrical Properties
 High Resistance to SolventsHigh Resistance to Solvents
 Outstanding Sliding PropertiesOutstanding Sliding Properties
Difficult process, decomposition and formaldehyde releases.Difficult process, decomposition and formaldehyde releases. PoorPoor
resistance to acids, Subject to UV degradationresistance to acids, Subject to UV degradation
Flammable,Difficult to bond, High specific gravity .Flammable,Difficult to bond, High specific gravity .
 Seals, Wipers, Rollers, Bearings, Housings, Sprockets,Seals, Wipers, Rollers, Bearings, Housings, Sprockets,
Insulators,Chain Guide,Sliding Rails, Gear WheelsInsulators,Chain Guide,Sliding Rails, Gear Wheels

UHMPEUHMPE
 Excellent resistance to stress and high resistant to cracking (i.e. itExcellent resistance to stress and high resistant to cracking (i.e. it
has high tensile and compressive strength)has high tensile and compressive strength)
 High operational temperatures with a melting point of 160°CHigh operational temperatures with a melting point of 160°C
 Excellent dielectric propertiesExcellent dielectric properties
 It is highly resistant to most alkalis and acid, organic solvents,It is highly resistant to most alkalis and acid, organic solvents,
degreasing agents and electrolytic attack. - Non-toxicdegreasing agents and electrolytic attack. - Non-toxic
 Non-stainingNon-staining
 Easy to produce, assembly and an economic materialEasy to produce, assembly and an economic material
 A range’s self-lubricating character yields a non-stick surfaceA range’s self-lubricating character yields a non-stick surface
comparable with PTFEcomparable with PTFE
Difficult to process, Flammable, Difficult bond and print, paint,Difficult to process, Flammable, Difficult bond and print, paint,
metalisedmetalised
Bulk material handling, Food processing and beveragBulk material handling, Food processing and beverag
machinery, Mining and mineral processing equipmentmachinery, Mining and mineral processing equipment
Manufacturing equipment, Civil engineering andManufacturing equipment, Civil engineering and
earthmoving equipment, Transport-related applications, includingearthmoving equipment, Transport-related applications, including
truck trays, bins andtruck trays, bins and

Tensile strength of engineeringTensile strength of engineering
PlasticsPlastics
Tensile strength of engineering plastics
0
100
200
300
400
500
600
700
800
900
PA6 PC POM PET PBT PPO PSF
Engineering plastics
Tensilestrength,kg/cm2

Impact strength of EngineeringImpact strength of Engineering
plasticsplastics
Impact strength of engineering plastics
0
10
20
30
40
50
60
70
Impactstrength,J/cm

% Elongation Of Engineering% Elongation Of Engineering
plasticsplastics
% Elongation of engineering plastics
0
50
100
150
200
250
300
%Elongation

Tensile modulus of EngineeringTensile modulus of Engineering
plasticsplastics
Tensile modulus, kg/cm2 of engineering plastics
0
5000
10000
15000
20000
25000
30000
35000
Tensilemodulus,kg/cm2

HDT of engineering plasticsHDT of engineering plastics
HDT of engineering plastics
0
20
40
60
80
100
120
140
160
180
HDTat18.5kg/cm2

Shrinkage of different plasticsShrinkage of different plastics

High performance engineeringHigh performance engineering
plasticsplastics
 PEEKPEEK
 PESPES
 PPSPPS
 PTFEPTFE
 PVDFPVDF
 PEI etc.PEI etc.

PEEKPEEK
 Good weldabilityGood weldability
 Resistant to chemicalsResistant to chemicals
 Excellent sliding propertiesExcellent sliding properties
 Excellent dimensional stabilityExcellent dimensional stability
 Resistant to high-energy radiationResistant to high-energy radiation
 High abrasion and wear resistantHigh abrasion and wear resistant
 Good electrical insulator even at high voltagesGood electrical insulator even at high voltages
 Hydrolysis resistance even above +200°CHydrolysis resistance even above +200°C
 Low coefficient of linear thermal expansionLow coefficient of linear thermal expansion
 Outstanding mechanical properties even at high temperaturesOutstanding mechanical properties even at high temperatures
 Optimized balance of stiffness, tensile strength and impact strength.Optimized balance of stiffness, tensile strength and impact strength.
 Continuous operating temperature up to + 260°C and briefly even uptoContinuous operating temperature up to + 260°C and briefly even upto
 SealsSeals
 GearsGears
 FittingsFittings
 AviationAviation
 Pump VanesPump Vanes
 Valve SeatsValve Seats
 Piston RingsPiston Rings
 Wafer , bins andWafer , bins and

PESPES
Main featuresMain features
 High thermal and mechanical capacity, good electricalHigh thermal and mechanical capacity, good electrical
insulationinsulation
 Inherently flame retardant (UL94 V−O) good weldabilityInherently flame retardant (UL94 V−O) good weldability
 High hardness and rigidity high dimensional stabilityHigh hardness and rigidity high dimensional stability
 high heat deflection temperature , FDA Complainthigh heat deflection temperature , FDA Complaint
Preferred FieldsPreferred Fields
 food technology medical technologyfood technology medical technology
 electrical engineering mechanical engineeringelectrical engineering mechanical engineering
 automotive engineering vacuum technologyautomotive engineering vacuum technology
 chemical engineering pumps and instrument manufacturechemical engineering pumps and instrument manufacture
 transport and conveyor technology precision engineeringtransport and conveyor technology precision engineering
 Metering apparatus, surgical instruments, sterilization tanks,Metering apparatus, surgical instruments, sterilization tanks,
light sockets, catalyst support,light sockets, catalyst support,
 flanges, coil formers, switch parts, insulators, valve bodies,flanges, coil formers, switch parts, insulators, valve bodies,
sensor housings, sight glassessensor housings, sight glasses

PPSUPPSU
 high thermal and mechanical capacity high impact strengthhigh thermal and mechanical capacity high impact strength
and notched impact strengthand notched impact strength
 inherently flame retardant (UL94 V−O) good chemicalinherently flame retardant (UL94 V−O) good chemical
resistanceresistance
 high hardness and rigidity good hydrolysis resistancehigh hardness and rigidity good hydrolysis resistance
 high heat deflechtion temperature food contact notificationhigh heat deflechtion temperature food contact notification
 very resistant to gamma radiation goodvery resistant to gamma radiation good
 medical technology vacuum technologymedical technology vacuum technology
 food technology precision engineeringfood technology precision engineering
 electrical engineering automotive engineeringelectrical engineering automotive engineering
 surgical instruments, sterilization tanks, instrument handles,surgical instruments, sterilization tanks, instrument handles,
appliances, sensor housings, valve bodies, sealsappliances, sensor housings, valve bodies, seals

PSUPSU
 high thermal and mechanical capacity good electrical insulationhigh thermal and mechanical capacity good electrical insulation
 high hardness and rigidity good weldabilityhigh hardness and rigidity good weldability
 inherently flame retardant (UL94 V−O) good gamma radiationinherently flame retardant (UL94 V−O) good gamma radiation
resistanceresistance
 high dimensional stability high heat deflechtion temperaturehigh dimensional stability high heat deflechtion temperature
 food technology medical technologyfood technology medical technology
 electrical engineering electrical engineeringelectrical engineering electrical engineering
 mechanical engineering automotive engineeringmechanical engineering automotive engineering
 vacuum technology chemical engineeringvacuum technology chemical engineering
 pumps and instrument manufacture precision engineeringpumps and instrument manufacture precision engineering
 transport and conveyor technology construction industrymedicaltransport and conveyor technology construction industrymedical
technology vacuum technologytechnology vacuum technology
 food technology precision engineeringfood technology precision engineering
 electrical engineering automotive engineeringelectrical engineering automotive engineering
 High cost, difficult to process.High cost, difficult to process.

PTFEPTFE
Advantages:Advantages:
 Very good UV resistanceVery good UV resistance
 Very good sliding propertiesVery good sliding properties
 Outstanding electrical propertiesOutstanding electrical properties
 High resistance to stress crackingHigh resistance to stress cracking
 Suitable for use even at low temperaturesSuitable for use even at low temperatures
 Excepionally high resistance toExcepionally high resistance to
 High CostHigh Cost
 Difficuly to processDifficuly to process
 Seals, Tubes, Roll, PumpsSeals, Tubes, Roll, Pumps
 Flangers, HousingsFlangers, Housings
 Insulators, Value housingsInsulators, Value housings
 Container liningsContainer linings

Effect of temperature on PlasticsEffect of temperature on Plastics
Temperature effect on plastics
0
50
100
150
200
250
300
350
LD
PE
H
D
PE
PP
PS
ABS
PM
M
A
PA6
PC
PO
M
PET
PBT
PPO
PSUU
H
M
W
PE
PEEK
PES
PPSU
PTFE
PEI
various Plastics
HDT

Tensile strength of plasticsTensile strength of plastics
Tensile strength of plastics
0
200
400
600
800
1000
1200
LDPE
HDPE
PP
PVC
PS
ABS
PM
M
A
PA6
PC
POM
PET
PBT
PPO
PSUUHM
W
PE
PEEK
PES
PPSU
PTFE
PEI
Varius plastics
Tensilestrength,kg/cm2

Impact strength of PlasticsImpact strength of Plastics
Impact strength of plastics
0
5
10
15
20
25
LDPE
HDPE
PP
PVC
PS
ABS
PMMA
PA6
PC
POM
PET
PBT
PPO
PSUUHMW
PE
PEEK
PPSU
PTFE
Varius plastics
Impactstrength,ft.lb/in

Dielectrical strengthof plasticsDielectrical strengthof plastics
Dielectrical Strength of plastics
0
100
200
300
400
500
600
700
800
900
PVC
PM
M
A
PA6
PC
PO
M
PET
PBT
PPO
PSU
PEEK
PPSU
PTFE
PEI
Varius plastics
Dielectricalstrength,volt/mil

Chemicals resistance of PlasticsChemicals resistance of Plastics
Chemical Resistance of plastics
0
2
4
6
8
10
12
LDPE
HDPE
PP
PVC
PS
ABS
PM
M
A
PA6
PC
POM
PET
PBT
PPO
PSUUHM
W
PE
PEEK
PES
PPSU
PTFE
Varius plastics
ChemicalResistanceatscaleof1,10

Plastics are having good aestheticPlastics are having good aesthetic
valuevalue
 PCPC
 PSPS
 SANSAN
 HIPSHIPS
 ABSABS
 Acetal (POM)Acetal (POM)

Cost of PlasticsCost of Plastics
Cost Rs /kg Of plastics
0
50
100
150
200
250
300
350
400
LDPE
HDPE
PP
PS
ABS
PM
M
A
PA6
PC
PO
M
PET
PBT
PPO
PSUUHM
W
PE
PEEK
PES
PPSU
PTFE
PEI
various Plastics
CostRs/Kg

Selection of Plastic materialsSelection of Plastic materials
 Case 1 Baby milk bottleCase 1 Baby milk bottle
 Case 2 Containers forCase 2 Containers for
Chemical packingChemical packing
..

Thank youThank you
Dr.Tipanna MelkeriDr.Tipanna Melkeri
Chemtip LaboratoriesChemtip Laboratories
Ph.D(tech.) PolymerPh.D(tech.) Polymer

DIFFERENT PLASTICS,THEIR PROPERTIES AND HENCE THEIR RELEVANT APPLICATIONS

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