eco friendly synthetic fibre from corn
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JUNE 2, 2001 IIT DELHI
JUNE 2, 2001 IIT DELHI
COMPARISON OF FIBRE PROPERTIES
JUNE 2, 2001 IIT DELHI
FIBRE PROPERTIES
SUPERIOR MELT PROCESSABILITY
LOW MOISTURE ABSORPTION, RAPID WICKING
EXCELLENT HAND, DRAPE AND RESILIENCE
WRINKLE RESISTANCE
QUALITIES FROM SILK LIKE TO COTTON LIKE
JUNE 2, 2001 IIT DELHI
EXCEPTIONAL UV RESISTANCE
LOW FLAMMABILITY
STAIN RESISTANCE
CAN BE WASHED, DRY CLEANED AND LAUNDERED
JUNE 2, 2001 IIT DELHI
APPLICATIONS
FIBRES
DESIRABLE FIBRE PROPERTIES
PLA IS FIRST MELT PROCESSABLE NATURAL BASED FIBRE
PROVIDES A BRIDGE BETWEEN NATURAL AND SYNTHETIC FIBRES
JUNE 2, 2001 IIT DELHI
PLA IS READILY CONVERTED INTO VARIETY OF FIBRE FORMS USING CONVENTIONAL MELT SPINNING PROCESSES
FIBRES FROM PLA DEMONSTRATE EXCELLENT RESILIENCY, OUTSTANDING CRIMP RETENTION AND IMPROVED WICKING COMPARED TO NATURAL FIBRES
FABRICS PRODUCED FROM PLA ARE KNOWN FOR SILKY FEEL, DRAPE, DURABILITY AND MOISTURE MANAGEMENT PROPERTIES
JUNE 2, 2001 IIT DELHI
ADVANTAGES OF PLA OVER PET
LOW FLAMMABILITY AND SMOKE GENERATION
EXCELLENT UV STABILITY
HIGH LUSTURE
LOWER DENSITY
JUNE 2, 2001 IIT DELHI
FIBRE APPLICATIONS
PLA CAN BE USED FOR WIDE RANGE OF WOVEN, KNITTED AND NON-WOVEN APPLICATIONS
CLOTHING (FASHION WEAR, UNDER WEAR, SPORTS WEAR, UNIFORM ETC)
WOOL, SILK AND COTTON BLENDS
WIPES
CARPERT TILES
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DIAPERS
FEMININE HYGEIN
UPHOSTERY, INTERIOR AND OUT DOOR FURNISHING
FILTRATION
GEO-TEXTILE FOR SOIL EROSION CONTROL
JUNE 2, 2001 IIT DELHI
PACKAGING
DESIRABLE PROPERTIES
PLA IS ALTERNATIVE TO TRADITIONAL, DISPOSABLE PACKAGING
VERSATILITY AND PROCESSABILITY
CAN BE EXTRUDED, ORIENTED, THERMOFORMED WITH EXISTING EQUIPMENTS
OUTSTANDING CLARITY AND GLOSS, EQUIVALENT TO ORIENTED PP AND PET
JUNE 2, 2001 IIT DELHI
UNIQUE BARRIER PROERTIES
LOW TEMPERATURE HEAT SEAL
CRYSTALLINITY CAN BE MODIFIED TO SUIT PRODUCT REQUIREMENTS
TENSILE STRENGTH AND MODULUS EQUIVALENT TO PET
JUNE 2, 2001 IIT DELHI
EXCELLENT RESISTANCE TO WIDE RANGE OF GREASES, FATS AND OILS
EXCELLENT PRINTABILITY
BIODEGRADABILITY : PLA BIODGRADES COMPLETELY IN COMPOST CONDITIONS
NATURAL ORIGIN
JUNE 2, 2001 IIT DELHI
APPLICATIONS
PROPERTIES MOST SUITABLE FOR FILM AND TERMOFORMIMG
FILMS
HIGH CLARITY FILMS AS AN ALTERNATIVE TO CELLOPHANE FOR USES LIKE CONFECTIONARY WRAP, FLOWER WRAPPING TOLETORIES AND PRESTIGE GIFTS
BAGS FOR COMPOST AND GARDEN REFUSE, AGRICULTURAL MULCH FILM TO REPLACE PAPER
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WIDE VARIETY OF MULTI-LAYER FILMS FOR PACKAGING USES SUCH AS FLAVOURED CEREALS, COFFEE PACKS AND PET FOODS
WINDOW FILMS FOR ENVELOPS
LAMINATION FILMS
RIGID THERMOFORMED CONTAINERS
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END USE PRODUCTS
PACKAGING OF DAIRY PRODUCTS
CANDY WRAPS
FAST FOOD CUPS
FRESH FOOD CONTAINERS
ICE CREAM HOLDERS
JUNE 2, 2001 IIT DELHI
FLAVOURED CEREAL PACKAGING, COFFEE PACKS
SNACK FOOD, MILK AND FRESH YOGURT
COMPOST BAGS
ALL THE PRODUCTS ARE COMPLETELY BIODEGRADABLE IN COMMERCIAL COMPOST CONDITIONS
JUNE 2, 2001 IIT DELHI
EMERGING APPLICATIONS
BLOW MOLDING : IJECTION STRETCHED BLOW MOLDED BOTTLES
EMULSIONS : WATER BASED EMULSIONS FOR PAPER AND BOARD COATING, PAINTS, BINDERS FOR NON-WOVENS, ADHESIVES
LACTIC ACID DERIVATIVES AS
CHEMICAL INTERMEDIATES FOR HOT MELT ADHESIVE, SURFACTANT, ACRYLIC ESTER
JUNE 2, 2001 IIT DELHI
REDUCE FOSSIL FUEL USE
CONVENTIONAL HYDROCARBON POLYMERS UTILIZE OIL AS THEIR FEEDSTOCK SOURCE
MONOMER FOR PLA IS DERIVED FROM ANNUALLY RENEWABLE RESOURCE
ENERGY FROM SUN AND CARBON DIOXIDE FROM AIR ARE HARNESSED IN AGICULTURE CROPS
ENVIRONMENTAL BENEFITS
JUNE 2, 2001 IIT DELHI
ONE THIRD OF THE ENERGY REQUIREMENT OF PLA IS DERIVED FROM THESE RENEWABLE RESOURCES
PLA UTILIZE 20 - 40% LESS FOSSIL FUEL THAN OTHER POLYMERS DERIVED DIRECTLY FROM HYDROCARBONS
FOSSIL FUEL PROVIDES ENERGY TO RUN PLA PRODUCTION CHAIN e.g. MILLING , FERMENTATION , POLYMERIZATION AND TRANSPORTATION
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CARBON CYCLE
CARBON DIOXIDE IS MAJOR CONTRIBUTOR TO GLOBAL WARMING
BECAUSE CARBON DIOXIDE IS REMOVED FROM AIR WHEN CORN IS GROWN , PLA HAS THE POTENTIAL TO RESULT IN REDUCED IMPACT ON GLOBAL WARMING COMPARED TO MOST HYDROCARBON BASED POLYMERS
JUNE 2, 2001 IIT DELHI
BIODEGRADABILITY OF PLA
PLA FIBRE WHEN SUBJECTED TO GROUND BURRYING, MARINE WATER AND ACTIVATED MUD TESTS
DECREASE IN TENACITY
INCREASE IN WEIGHT LOSS
IN GROUNDAND MARINE WATER TESTS THE FIBRE IS PRACTICALLY DECOMPOSED WITHIN TWO YEARS
ACTIVATED MUD TEST, DECOMPOSITION IN 2-3 MONTHS
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COMPARISON WITH TRADITIONAL FIBRES
CONVENTIONAL PET RETAINS THE SHAPE AND PROPERTIES UNDER ALL BIODEGRADABILITY TESTS
CELLULOSIC FIBRES (COTTON AND VISCOSE) ARE DECOMPOSED MORE RAPIDLY THAN PLA IN ACTIVATED MUD
JUNE 2, 2001 IIT DELHI
WASTE DISPOSAL
PLA PRODUCTS CAN BE DISPOSED OFF BY TRADITIONAL WASTE MANAGEMENT METHODS SUCH AS
LANDFILL
LANDFILL TESTS HAVE NOT BEEN CARRIED OUT WITH PLA POLYMERS
ITS WATER INDUCED (HYDROLYSIS) DEGRADATION MECHANISM IS WELL UNDERSTOOD
JUNE 2, 2001 IIT DELHI
IN PRESENCE OF MOISTURE PLA POLYMERS DEGRADE INTO LACTIC ACID (MONOMER) EVEN IF MICROBES ARE NOT PRESENT
PLA POLYMER DEGRADATION RATE IS DEPENDENT ON TEMPERATURE AND HUMIDITY
AT TYPICAL LANDFILL TEMPERTATURES, THE EXPECTED DEGRADATION TIME FRAME WOULD BE BETWEEN 2 AND 10 YEARS
FOOD WASTE AND PAPER MAY PERSIST FOR LONGER PERIOD IN LANDFILL BECAUSE THEY REQUIRE BACTERIA TO DEGRADE
JUNE 2, 2001 IIT DELHI
INCINERATION
PLA POLYMERS INCINERATE CLEANLY WITH REDUCED ENERGY YIELD COMPARED TO TRADITIONAL POLYMERS
PLA POLYMERS BURN MUCH LIKE PAPER AND CELLULOSE
BURNS WITH WHITE FLAME
IT CONTAINS NO AROMATIC GROUPS OR CHLORINE
PRODUCES FEW BY PRODUCTS AND 0.01% ASH.
JUNE 2, 2001 IIT DELHI
MUNICIPAL COMPOSTING
PLA POLYMERS ARE FULLY COMPOSTABLE IN MUNICIPAL COMPOSTING FACILILITIES
PLA COMPOST CAN BE RECYCLED FOR CORN CULTIVATION
PLA POLYMERS COMPOST BY TWO STEP PROCESS
JUNE 2, 2001 IIT DELHI
FIRST CHEMICAL HYDROLYSIS (REACTION WITH WATER) REDUCES THE MOLECULAR WEIGHT OF POLYMER
THEN MICRO ORGANISMS DEGRADE THE FRAGMENTS AND LACTIC ACID INTO CARBON DIOXIDE AND WATER
HEAT AND WATER STIMULATE DEGRADATION OF PLA POLYMERS
JUNE 2, 2001 IIT DELHI
CONCLUSIONS
THE NEW ECO FRIENDLY SYNTHETIC FIBRE BASED ON CORN AS RENEWABLE SOURCE WOULD FIND WIDE ACCEPTABILITY IN THE AREA OF
CONVENTIONAL TEXTILES
TECHNICAL TEXTILES
NON TEXTILE APPLICATIONS
JUNE 2, 2001 IIT DELHI
IT WOULD MEET TH E REQUIREMENTS TO COPE UP WITH THE DEPLETING FOSSIL FUEL RESOURCES AND ENVIRONMENT PROTECTION
IT IS ENVISAGED THAT IN THE NEAR FUTURE MANY COMPANIES WOULD ENTER INTO PRODUCTION OF ECO FRIEDNLY PLA FIBRES AND OTHER PRODUCTS.