Sachin Seminar ppt

8/7/2019 Sachin Seminar ppt

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INTRODUCTIONINTRODUCTION

OlefinOlefin polymerspolymers areare mostmost chemicalchemical resistantresistant inertinertmaterialmaterial availableavailable inin theirtheir commercialcommercial categorycategory forfor

industrialindustrial applicationsapplications..

TheThe lastlast eraera dominateddominated usesuses ofof olefinolefin polymerpolymer inin

commoditycommodity applicationsapplications eliminatingeliminating traditionaltraditional metalsmetals

andand nonnon metalsmetals..

AmongAmong aa fewfew convertersconverters allall overover thethe world,world,

EntremondeEntremonde hashas commercializedcommercialized andand patentedpatented TPOTPO

coatingcoating onon polypropylenepolypropylene fabricfabric..


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TheThe commoncommon usageusage ofof coatedcoated fabricsfabrics areare Tarpaulins,Tarpaulins,

VehicleVehicle coverscovers ,, trucktruck tarpaulinstarpaulins ,, TentsTents ,, AgricultureAgriculture

coveringscoverings andand fumigationfumigation sheetssheets ,, AwningsAwnings ,, CanopiesCanopiesetcetc

InIn allall thethe typestypes ofof coatedcoated fabrics,fabrics, fabricfabric componentcomponent

impartimpart desireddesired mechanicalmechanical property,property, ii..ee.. BreakingBreakingstrength,strength, tearingtearing strength,strength, burstingbursting strength,strength,

dimensionaldimensional stabilitystability etcetc

TheThe mechanicalmechanical propertiesproperties desireddesired inin coatedcoated fabricsfabrics arearedecideddecided byby variousvarious propertiesproperties ofof fabricfabric usedused vizviz..

weight,weight, typetype ofof yarn,yarn, structurestructure whetherwhether monofilament,monofilament,

multifilamentmultifilament ,, crystallinity,crystallinity, chemicalchemical andand thermalthermal

resistanceresistance etcetc..


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The most common e.g. of coated fabric is the cottonThe most common e.g. of coated fabric is the cotton

fabricfabric coated withcoated with waxwax calledcalled asas canvascanvas

Most fabricsMost fabrics are coated withare coated with pvcpvc andand rubberrubberwhere awhere a

number of additives are used to prepare a suitable fluidnumber of additives are used to prepare a suitable fluid

to coat on ato coat on a fabric.fabric.

The categories of additives areThe categories of additives are fillers, pigments andfillers, pigments and

dyes, solvents, plasticizers and functional additivesdyes, solvents, plasticizers and functional additives

The coatings impart orThe coatings impart ormodifymodify surface properties,surface properties,

barrier and aesthetics of a coated fabric for the requiredbarrier and aesthetics of a coated fabric for the required

function or end use.function or end use.


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TheThe biggest problembiggest problem is,is, disposal of wastedisposal of waste,,generated after the use of coated fabrics.generated after the use of coated fabrics.

RecyclingRecycling of coated fabrics isof coated fabrics is not an easynot an easy or aor acommon taskcommon task.. common solventcommon solventor mixture ofor mixture ofsolventssolvents cannot dissolvecannot dissolve entire coated fabric forentire coated fabric for

recycling purpose.recycling purpose.

TheThe only optiononly option remains is to safelyremains is to safely incinerateincinerate thethewaste, which has longwaste, which has long--term economic effects, if allterm economic effects, if allthe precautions are taken from environmentalthe precautions are taken from environmentalpoint of view.point of view.


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PRODUCTION OF POLYOLEFINPRODUCTION OF POLYOLEFIN

There are two polyolefin polymers used toThere are two polyolefin polymers used tomake synthetic fibres, polypropylene andmake synthetic fibres, polypropylene andpolyethylene,polyethylene,

Polyethylene was first produced in thePolyethylene was first produced in the UKUKinin 19331933 by polymerising ethylene underby polymerising ethylene underpressurepressure

Polypropylene was commercialised inPolypropylene was commercialised in 19561956by polymerising propylene using catalystsby polymerising propylene using catalysts


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BothBoth ofof thesethese polyolefinspolyolefins areare veryvery importantimportant inin plasticplastic

mouldingmoulding andand forfor makingmaking plasticplastic sheetsheet butbut bothboth areare spunspunintointo syntheticsynthetic fibresfibres onon aa largelarge scalescale..

PolyolefinPolyolefin fibresfibres areare mademade byby meltmelt spinningspinning..

BecauseBecause thethe fibresfibres areare difficultdifficult toto dyedye,, colouredcoloured

pigmentspigments areare oftenoften addedadded toto thethe polymerpolymer streamstream beforebefore

extrusionextrusion

RecentlyRecently aa newnew familyfamily ofof catalystscatalysts toto makemake

polypropylenepolypropylene hashas beenbeen developeddeveloped calledcalled metallocenemetallocene


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PROPERTIRS OF POLYOLEFINPROPERTIRS OF POLYOLEFIN

BothBoth polyolefinpolyolefin fibresfibres havehave aa densitydensity lessless thanthan11..00 andand therefore,therefore, areare thickerthicker thanthan otherother manman--mademade fibresfibres andand givegive moremore covercover

TheirTheir meltingmelting pointspoints areare aroundaround 130130 CC forforpolyethylenepolyethylene andand 160160 CC forfor polypropylenepolypropylene

TheyThey havehave aa highhigh resistanceresistance toto chemicalchemical attackattackandand modernmodern polypropylenepolypropylene fibresfibres havehave aa highhighresistanceresistance toto UVUV degradationdegradation


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What is coating ?What is coating ?

Coating is carried out to impart certainCoating is carried out to impart certaindesired characteristics and functionalitiesdesired characteristics and functionalitiesto materialsto materials

Coating and lamination is gaining groundCoating and lamination is gaining groundworldwide as aworldwide as a means for value additionmeans for value addition

Coatings enable significantCoatings enable significantcost savingscost savingswhen compared with solid materials of likewhen compared with solid materials of like

composition.composition.


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Methods of coatingMethods of coating

knife blade coatingknife blade coating

Impregnation or dipping methodImpregnation or dipping method

SlopSlop--padding process, roll coatingpadding process, roll coating

Hot melt methodHot melt method

Powder application methodPowder application method


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Thermplastic Polyolefins (TPO)Thermplastic Polyolefins (TPO)

ThermoplasticThermoplastic soften/melt when heatedsoften/melt when heated

OlefinOlefin -- containing carboncontaining carbon--carbon doublecarbon double

bonds also called as Alkenesbonds also called as Alkenes

According to the latest draft ASTM standard forAccording to the latest draft ASTM standard forTPOsTPOs

TPOs must contain more thanTPOs must contain more than 95%95% by mass ofby mass ofTPO polymerTPO polymer


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polyethylene, polypropylene, and isobutylene, as well aspolyethylene, polypropylene, and isobutylene, as well as

their derivatives fall under TPOtheir derivatives fall under TPO

TPOs do not contain plasticizers. So, problem ofTPOs do not contain plasticizers. So, problem of

plasticizer loss associated with some plasticizedplasticizer loss associated with some plasticized

polymers is eliminated.polymers is eliminated.

The TPO and PP are basically inert towards chemicalThe TPO and PP are basically inert towards chemical

and microorganism attack.and microorganism attack.

The finished products have good resistance towardsThe finished products have good resistance towards

oxygen and ozone and are flexible at very lowoxygen and ozone and are flexible at very low

temperature i.e.temperature i.e. --60C60C


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The products areThe products are odourlesodourless and do not give outs and do not give out

toxic gasestoxic gases on burning.on burning.

The product areThe product are lighterlighterthan PU or PVC orthan PU or PVC or

rubber coated fabrics since polyolefin are lowerrubber coated fabrics since polyolefin are lowerin density than PU, PVC or rubbers formulationsin density than PU, PVC or rubbers formulations

TheThe coatingcoating as well asas well as fabrifabric arec are homologoushomologous

polymers hence arepolymers hence are melt recyclablemelt recyclable, which is not, which is notpossible in the case of conventional polymerpossible in the case of conventional polymer

coated fabrics.coated fabrics.


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BENEFITS OF TPOsBENEFITS OF TPOs

enviromently freindly and recyclableenviromently freindly and recyclable

seams can be heat weldedseams can be heat welded

available in many coloursavailable in many colours

resistant to heat and uv degradationresistant to heat and uv degradation

resistant to many chemicalsresistant to many chemicals

good cold temperature flexibilitygood cold temperature flexibility

no external plasticizers are addedno external plasticizers are added


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PERFORMANCE OF TPOsPERFORMANCE OF TPOs

hot air welded seams are easy and cleanhot air welded seams are easy and clean

costs are lower than for other hot aircosts are lower than for other hot air

welded membraneswelded membranes noticeable changes in colour and texturenoticeable changes in colour and texture

occur over timeoccur over time

MembranesMembranes respondrespond dramaticallydramatically(expansion and contraction) to(expansion and contraction) totemperature changestemperature changes


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failure of substrate bonding adhesives isfailure of substrate bonding adhesives iscommon (i.e. not sticking to membrane )common (i.e. not sticking to membrane )

rere--welding membranes (in repair) iswelding membranes (in repair) isproblematic after exposure to sunproblematic after exposure to sun

black membranes are more difficult toblack membranes are more difficult toweld than white onesweld than white ones


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PROCESSINGPROCESSING

the extrusionthe extrusion calenderingcalendering is the best suitableis the best suitabletechnique used in processing of these materials.technique used in processing of these materials.

it is basically a continuous extrusion unitit is basically a continuous extrusion unitconsisting of different arrangement of rollersconsisting of different arrangement of rollers

In this process the care is taken toIn this process the care is taken to avoidavoid

thermal shocksthermal shocks to the sensitive materials toto the sensitive materials toavoid deterioration of mechanical propertiesavoid deterioration of mechanical properties


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Calendering processes have advantage inCalendering processes have advantage in

terms ofterms ofuniformityuniformity andand flawlessnessflawlessness ofofcoatingcoating

the initial investment cost is high.the initial investment cost is high.

Following are description of commonFollowing are description of commoncalendering process used for TPO coating.calendering process used for TPO coating.

Inverted L calendarInverted L calendar Inclined Z calendarInclined Z calendar


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Inverted L calendarInverted L calendar

These calenders have additional rolls to resurface theThese calenders have additional rolls to resurface the

TPO sheet before lamination.TPO sheet before lamination.

In this process four rolls provide three meteringIn this process four rolls provide three meteringstations (nips)stations (nips)


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Inclined Z calendarInclined Z calendar

This is typical equipment is used in processingThis is typical equipment is used in processing

rubbers; an elastomeric TPO can easily be processedrubbers; an elastomeric TPO can easily be processed

with this type of arrangement.with this type of arrangement.


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The calender equipments producingThe calender equipments producing

coated fabrics are further equipped withcoated fabrics are further equipped withAuxiliary equipmentsAuxiliary equipments

The auxiliaries are very important forThe auxiliaries are very important forprocessing of TPO coated PP fabrics.processing of TPO coated PP fabrics.

These impart processing ease for furtherThese impart processing ease for furtherhandling of material.handling of material.


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A typical calendar coating lineA typical calendar coating line


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PROPERTIES OF TPO COATED PP FABRICPROPERTIES OF TPO COATED PP FABRIC


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APPLICATIONS OF TPO COATED PPAPPLICATIONS OF TPO COATED PP

FABRICSFABRICS

BIO GAS COVERSBIO GAS COVERS

The biogas generators have seen traditional covers madeThe biogas generators have seen traditional covers madeout ofout ofMSMS toto PVCPVC coated fabric.coated fabric.

The biogas is a combination ofThe biogas is a combination ofhydrocarbon fuelhydrocarbon fuel gasesgaseswith some amount of bywith some amount of by--product likeproduct like oxides or sulphuroxides or sulphurand nitrogen.and nitrogen.

The waste mass and fermented slurry also containThe waste mass and fermented slurry also containdissolved gasesdissolved gases andand microorganismmicroorganism, which are, which are corrosivecorrosivein nature.in nature.


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TheThe leakage lossesleakage losses are quite high and add negativelyare quite high and add negatively

to the overall economics of running the generators.to the overall economics of running the generators.

The PP coated TPO fabric is a single solution to all theThe PP coated TPO fabric is a single solution to all the

above cited problems.above cited problems.


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BULK BAGS AND CONTAINER LININGSBULK BAGS AND CONTAINER LININGS

Use of olefin polymers inUse of olefin polymers in transport worthytransport worthypacking is very common inpacking is very common in consumerconsumer asaswell as inwell as in industrial sectorsindustrial sectors

A very common example is woven sackA very common example is woven sackused inused in cement and food graincement and food grain packagingpackaging

These bags and containers can haveThese bags and containers can havevalves for ease of filling and unloading.valves for ease of filling and unloading.


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FIBs and BLBs offer aFIBs and BLBs offer a cost effectivecost effective, efficient and, efficient and

environmental friendlyenvironmental friendly way of transporting bulkway of transporting bulk

materials.materials.

Use of multiple loops made out of webbing withUse of multiple loops made out of webbing with

monofilamentmonofilament PP yarn provides extra strengthPP yarn provides extra strength andand

thus the bags can be handled usingthus the bags can be handled using cranescranes


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ROOFING MEMBRANESROOFING MEMBRANES

In typical roofing systems thermalIn typical roofing systems thermalinsulation barrier and water proofinginsulation barrier and water proofingmembrane determines comfort of home.membrane determines comfort of home.

The traditional membranes consist of PVCThe traditional membranes consist of PVCor EPDM coated polyester or polyamideor EPDM coated polyester or polyamide

fabric.fabric.

But as discussed earlier PVC and EPDMBut as discussed earlier PVC and EPDMmaterials have their own draw backmaterials have their own draw back


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New concept of TPO coated fabric came outNew concept of TPO coated fabric came out

with all possible solution to prevailingwith all possible solution to prevailingdrawbacks of conventional materialsdrawbacks of conventional materials


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FLEXIBLE LIQUID STORAGE TANKSFLEXIBLE LIQUID STORAGE TANKS

Flexi tanks are containers made out ofFlexi tanks are containers made out ofcoated fabrics in various shapes and sizes.coated fabrics in various shapes and sizes.

The common shapes are pillow type,The common shapes are pillow type,onion, orange etc. that ranges fromonion, orange etc. that ranges from 250250liters toliters to 50,00050,000 liters capacity.liters capacity.

These types of tanks provideThese types of tanks provide temporarytemporary asaswell aswell as long termlong term liquid storage facilityliquid storage facility


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They are used in water, oil, fruit juice,They are used in water, oil, fruit juice,

milk products, chemical and fuel storagemilk products, chemical and fuel storageor transportation.or transportation.

The flexi tanks are categorized into twoThe flexi tanks are categorized into twotypes onetypes one time usedtime used bulk containers andbulk containers andpermanent usepermanent use containerscontainers

Traditionally rubber coated, PVC coated orTraditionally rubber coated, PVC coated orTPU coated fabrics are used in theseTPU coated fabrics are used in theseapplicationapplication


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AUTOMOTIVE INTERIORSAUTOMOTIVE INTERIORS

Thermoplastic olefins (TPO) are new generationThermoplastic olefins (TPO) are new generationcompounds, which find increasing application incompounds, which find increasing application inautomotive interiors.automotive interiors.

TPOs are materials of future and are finding theirTPOs are materials of future and are finding theirplace due to their outstanding properties propertiesplace due to their outstanding properties propertiesover the existing materials.over the existing materials.

At present, PVC is dominantly used in many of theAt present, PVC is dominantly used in many of theauto interior applications for door panels, roofingauto interior applications for door panels, roofingupholstery etcupholstery etc


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InIn European marketsEuropean markets, there are strong, there are strong environmentalenvironmental

objectionsobjections to use PVC because ofto use PVC because ofleadlead andand cadmiumcadmiumcontaining additives.containing additives.

lack of recyclability , Besides this, PVC coated fabriclack of recyclability , Besides this, PVC coated fabric

suffers fromsuffers from migrationmigration properties of theproperties of the plasticizersplasticizers

leading toleading to foggingfogging andand poor ageingpoor ageing problems.problems.


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Against this, TPO coated on PP fabric, offersAgainst this, TPO coated on PP fabric, offers

considerable following advantages.considerable following advantages.

problems associated with plasticizer migration of PVC areproblems associated with plasticizer migration of PVC aretotally eliminatedtotally eliminated

The light weightness of TPO coated fabric is remarkableThe light weightness of TPO coated fabric is remarkable

There is absolutely no smell in the coated fabric unlike inThere is absolutely no smell in the coated fabric unlike inthe case of PVC Coated fabrics.the case of PVC Coated fabrics.

The oil and chemical resistance are superior to those ofThe oil and chemical resistance are superior to those of

PVC Coated fabrics.PVC Coated fabrics.


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AGRICULTURE COVERINGS AND TRUCKAGRICULTURE COVERINGS AND TRUCK

TARPAULINSTARPAULINS

The use of polyolefin polymers especiallyThe use of polyolefin polymers especiallypolypropylene is common in sports andpolypropylene is common in sports andagriculture application.agriculture application.

TheThe artificial grassartificial grass polypropylene basedpolypropylene basedapparels due toapparels due to wicking propertieswicking properties, pond, pondlineslines green house coversgreen house covers are feware fewexamples.examples.


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TPO coated PP fabrics find application in all aboveTPO coated PP fabrics find application in all above--

mentioned applications as per their material propertymentioned applications as per their material property

benefitsbenefits ..


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GROUND SHEETGROUND SHEET

Ground Sheet is an essential item used byGround Sheet is an essential item used byall soldiers in ground forces.all soldiers in ground forces.

This is an item of theirThis is an item of their personal kitpersonal kit..

The Ground Sheet are used as sleepingThe Ground Sheet are used as sleepingmat, temporary shelters, to collect watermat, temporary shelters, to collect waterfrom stream in remote area .from stream in remote area .


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in older version of ground sheets, which isin older version of ground sheets, which isa composite of rubber and cotton.a composite of rubber and cotton.

there were many problems, likethere were many problems, likeweathering, UV resistance, and chemicalweathering, UV resistance, and chemical

and microbiological resistance ,heavinessand microbiological resistance ,heavinessdue to highdue to high--density of materialsdensity of materials


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Entremonde Polyecoaters has inventedEntremonde Polyecoaters has inventedpatented technology to manufacture PPpatented technology to manufacture PP--

TPO Ground Sheet composite productTPO Ground Sheet composite product

It has over come the above problem facedIt has over come the above problem faced

in conventional product.in conventional product.

These Ground Sheets are successfullyThese Ground Sheets are successfully

introduced Defence forces.introduced Defence forces.


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CONCLUSIONCONCLUSION

The woven TPO coated products are findingThe woven TPO coated products are findingdiverse application in industry.diverse application in industry.

The demanding application areas are buildingThe demanding application areas are buildingand constructionand construction

The new application in out door banners,The new application in out door banners,posters, construction sheet, fabric architectureposters, construction sheet, fabric architecturepond liner and geotextiles are developing areaspond liner and geotextiles are developing areas


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Thank you!Thank you!


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