luran s - asa properties &...
TRANSCRIPT
Luran® S - ASA Properties & Applications
Dr. Chris DeArmitt (CChem MRSC)Innovation Manager
Styrenic Polymers EuropeSpecialty CopolymersBASF AG, Ludwigshafen, Germany.
22.03.2004 2
Outline
Thermoplastics use in B & COutline of styrenic polymersStandard & Specialty styrenic polymersASA - Properties & ApplicationsExisting and potential B & C ApplicationsConclusions
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Material Use in B & C Western Europe : APME. Total 730M tonnes
Concrete
Precast concrete
Brick & Tile
Wood
Iron & Steel
Stone
Asphalt & Bitumen
Plastics
Flat Glass
Mineral Wool
Aluminium
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Standard Styrenic Polymers
General PurposePolystyrene - GPPS SAN
+ butadienerubber
High Impact Polystyrene -
HIPSABS
+ acrylonitrile
+ butadienerubber
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Specialty Styrenic Polymers
MABS
ASA
ABS/PA
Specialty StyrenicsSpecialty Styrenics
Excellent impact strengthno squeak
Excellent UV / Heat stability
Excellent transparency impact strength
SAN
+ (P)MMA
+ acrylaterubber
+ butadienerubber
+ nylon 6
ABS
Chemical resistance
High modulus
Low impact strength
+ butadienerubber
special compatibilizer
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ASA – Property ProfileAcrylonitrile / Styrene / Acrylate
Excellent UV-resistance, excellent colour stabilityNo painting necessary – cost savingGood impact strength even after weatheringExcellent chemical resistanceResistance against various cleaning agentsHigh dimensional stability (amorphous material)Superior long term performanceGood adhesion to soft componentsOutstanding heat aging resistance
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Comparison of ASA & other styrenic polymers after outdoor weathering
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Comparison of the greying of ASA &UV-stabilized ABS after outdoor weathering
7 months
9 months
1 year
2 years
3 years
4 years
5 years
6 years
7 years
8 years
ASA ABS-UV
ASA Grade (Luran® S 778T)
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ASA in Automotive Industry
1. Radiator grills2. Cowl vent
grills
3. Spoilers
4. Rear trim panels
5. Rear lamp housings
6. Window frames7. B-pillar appliqué
8. Exteriormirror housings
9. Indicatorlamp housings
(Specific examples are Luran® S)
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ASA in E/E Sector
Advantages:
Colour stability and resistanceto yellowing
Impact resistance and stiffness
High scratch resistance
High gloss
Good chemical resistance(e.g. against cleaning agents)
Heat aging resistance
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Thermoplastics Use in B & C Western Europe : APME. Total 5M tonnes
PVCPUEPSHDPELDPEPSXPSPPPUPCPMMAPOM, PA, ABS
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ASA compared to PVC in B & C
30 % Lower densityNon-corrosive meltHigher weatherability in dark colorsHigher heat deflection temperatureEasy processability:
Extrusion - single and twin screw extrudersInjection Molding - universal screws, broadprocessing window
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ASA & PVC working together:Applications: Doors, window frames, shutters, siding & fencing
ASA on PVCImproved colour stability, less fading
ASA in PVCAdds increased Vicat / HDT for hot outdoor conditions & dark colours
ASA instead of PVCFor applications needing stiffness at even higher temperature
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Comparison of ASA & PVC after outdoor weathering - Ohio USA
4
3
2
1
0
5
Del
ta E
6
0 6 12 18 24
Outdoor Exposure Time (months)
Luran S ASA Light BlueLuran S ASA Light BrownLuran S ASA Light GrayPVC Light BluePVC Light BrownPVC Light Gray
4
3
2
1
0
5
Del
ta E
6
0 6 12 18 24
Outdoor Exposure Time (months)
Luran S ASA Light BlueLuran S ASA Light BrownLuran S ASA Light GrayPVC Light BluePVC Light BrownPVC Light Gray
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Luran S field color retention - light blue
3
2
1
0
Exposure Time (months)
Delta E
Florida (wet sunny)Field Location
Ohio (Industrial)Arizona (dry, sunny)
6 12 18 24
Mea
sure
men
ts:
Spec
trop
hoto
met
er
450 /0
0
3
2
1
0
Exposure Time (months)
Delta E
Florida (wet sunny)Field Location
Ohio (Industrial)Arizona (dry, sunny)
6 12 18 24
Mea
sure
men
ts:
Spec
trop
hoto
met
er
450 /0
0
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ASA Property Comparison
Property PMMA PVC PP ASA
Toughness-Stiffness - + 0 ++ratioWeathering resistance ++ + 0 ++Dimensional heat + 0 0 +resistance HDT/VicatChemical resistance 0 + ++ +Dimensional stability/ + + - +Low warpageGloss – Long-term ++ 0 - +
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ASA in PVC
Vicat B50 (°C)
70
80
90
100
110
0 20 40 60 80 100Weight % ASA
105°C
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ASA Applicationsin B & C
ASA offers much higher Vicat than PVC, enabling use in hot countries and darker coloursDoors made of ASASolar panel housings that must withstand intense UV and remain rigid under high temperatureAs a cap layer for PVC and other less stable polymers (fencing, siding, decking, roof-tiles etc.)Storm doors, exterior trim, garage doors
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Applications of ASA on PVC or ABS
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Conclusions
Plastics are used in B & C due to their versatility, attractive properties and costStyrenics are used for insulation, pipes, ducts and fitted furnitureASA offers excellent mechanical properties like those of ABS with the bonus of superb heat and UV resistanceASA is well proven in the automotive and E&E sectorsThe qualities lend themselves very well to adoption in B & CExisting applications are window profiles, siding, roof tiles, electrical switch covers and moreLet your imagination find the rest!