Upload
vankhanh
View
215
Download
2
Embed Size (px)
Citation preview
Vistamaxx™ Propylene-based ElastomersNew Opportunities for your existing Film and Extrusion Coating Applications
Vistamaxx™ Propylene-based ElastomersNew Opportunities for your existing Film and Extrusion Coating Applications
Presented by:David R. WeisingerGlobal Film Technical LeaderExxonMobil Chemical Company
2
• Introduction to Vistamaxx™ propylene-based elastomers (designated here as "New propylene-based elastomers-New PBE")
• Applications and ValueCast PP film sealants (cast film)
Elastic stretch hoods (blown film)PP woven sacks (extrusion coating / extrusion lamination)Stretch cling films (cast film)Surface protective films (cast film)
• Conclusion and Q & A
Topics
Cast PP Stretch Hoods
Raffia modification
PP woven sacks
Stretch Cling Surface Protection
Application description
Sealant resin Elastic engine hPP blend partner
Extrusion Coating & Lamination
Blend partner in skin
Adhesive resin in coextrusion
3
Isotactic PP Microcrystalline Region Amorphous Region
• New PBE are olefinic specialty elastomers based on proprietary metallocene technology
• Semicrystalline copolymers of propylene and ethylene
• Bring new capabilities to the film industry- Unique combination of elasticity, flexibility, adhesion, drapability and toughness
- Potential not seen in conventional elastomers or resins
• Can be tailored for specific attributes in different applications
• Excellent compatibility with many other polymers
• Food law compliant
Introducing New PBE
Elastic, Flexible, Adhesive and ToughElastic, Flexible, Adhesive and ToughElastic, Flexible, Adhesive and Tough
4
Plastomers
Ethylene alpha olefin copolymers with butene, hexene or octene comonomer
Densities from 0.860 - 0.905 g/cm3
Markets: film, polymer modification
Strengths• Excellent low temperature ductility• Broad polyethylene compatibility
New PBE
Low crystallinity copolymers of propylene (>80wt%) and ethylene
Densities from 0.855 - 0.871 g/cm3
Markets: nonwovens, film, polymer modification
Strengths• Elasticity• Excellent compatibility with PP and PE• Excellent adhesion to PP and PE• Maintain clarity of PP
Shared Attributes
Toughness
Flexibility
Softness
EthyleneCrystallinity
PropyleneCrystallinity
EP(D)M
Amorphous Region
Cry
stal
linity PE
Plastomers
PP
New PBE
Continuum of polymers with propylene and ethylene crystallinity
New PBE versus Ethylene Alpha Olefin Plastomers
5
Typical Values
new PBE grades
Wt.%C2
MFR(230ºC)1
g/10 minDensity (g/cm3)
FlexMod2
(MPa)Tensile3
(MPa)Hardness4
15 sec
Vicat Softening
Point5,200g (ºC)
PBE 306 11 7 0.871 40.2 18.2 86 64
PPE 0FL 11 2 0.873 46.5 >18.6 80 68
PBE 9FL 9 8 0.879 105.8 >18.6 86 80
PBE 1FL 16 3 0.863 8.5 >8.3 59 54
PBE 2FL 15 18 0.861 11.0 >7.3 61 48
1. g/10min, ASTM D-12382. 1% secant, @break, ASTM D-7903. @break, ASTM D-4124. Shore A, ASTM D-22405. ASTM D-15256. Not recommended for gel sensitive applications
New PBE Grade Slate (for Film applications)
These grades bracket the range of crystallinity and rheology useful in most film, extrusion coating and extrusion lamination applications.
New PBE as High Performance Sealants for Cast PP FilmsNew PBE as High Performance Sealants for Cast PP Films
7
Data from ExxonMobil Chemical.
Application:Heat sealable cPP lamination film for food, non-food and stationary product packaging. Hermetic seals for MAP.
Key points:• Improved sealing performance
- Low and very low seal initiation temperature
- High hot-tack force
- Expanded range of sealing temperatures to improve hermetic seals
97% New PBE 9FL87% New PBE 9FL
40% New PBE 9FL + 60% Terpolymer100% Terpolymer
• Enhanced packaging line performance- Increased packaging line speed up to 100%
- More efficient packaging operations and lower energy consumption
- Delayed investment in additional capacity
Recommended grade:
New PBE 9FL
New PBE in Cast Polypropylene Film
8
Faster packaging line speeds and broader operating range
Excellent hot tack • New PBE can both lower
and broaden hot tack seal performance compared to some terpolymer sealants
• Valuable in VFFS* packaging
0.00
5.00
10.00
15.00
20.00
25.00
50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140
Seal Temperature (C)
Hot
Tac
k ( N
/25.
4 m
m)
40% New PBE 9 + 60% Terpolymer
97% New PBE 9
77% New PBE 9 + iPP
Terpolymer
*VFFS = vertical form fill and seal
Hot Tack Seal Performance
New PBE enables very low hot tack initiation temperatures with excellent strengthD
ata
from
Exx
onM
obil
Che
mic
al
9
Hermetic seals = leak free and airtight packaging Essential for MAP applications
°F 210 220 230 240 250 260 270 280 290 300 310 320°C 99 104 110 116 121 127 132 138 143 149 154 160
°F °C210 99 No Fin Seal220 104230 110240 116250 121260 127270 132280 138290 143300 149310 154320 160 No Crimp Seal330 166340 171
Fin
Seal
Tem
pera
ture
Crimp Seal Temperature
Terpolymer hermetic seal
area
(1) Terpolymer enhanced with
Vistamaxx seal area300% broader seal range
Hermeticity Video
1) Terpolymer enhanced with New PBE seal
area
Obtaining Hermetic Seal Performance
New PBE expands hermetic seal range by 300%
(1) the composition shown in green is a blend of 60% Terpolymer + 40% New PBE
(1) 60% Terpolymer + 40% New PBE
New PBE expands hermetic seal range by 300%
Dat
a fro
m E
xxon
Mob
il C
hem
ical
10
Testing on HFFS packaging machine indicates:• Much wider operating range compared to
terpolymer sealant. Valuable when:
- accurate heat control is a problem
- dwell times vary because of frequent machine speed changes
• Much faster line speeds are achievable
- production output can be doubled without adding a new machine
------ Minority component = iPP ------
Packaging Line Performance
New PBE increases packaging line capacity
40% New PBE 9FL60% Terpolymer
Terpolymer 77% New PBE 9FL 87% New PBE 9FL 97% New PBE 9FL
Dat
a fro
m E
xxon
Mob
il C
hem
ical
New PBEA new Versatile Polyolefin for Extrusion Coating Applications
12
Extrusion Coating Applications These inherent attributes of New PBE
• Exceptional adhesion to PP substrates
• Very low temperature sealing, high seal strength
• Increased flexibility and softness
• Elasticity
• Toughness
• Anti-skid (high COF)
• High gas permeability
• Polyolefin / recyclable structure (non-PVC)
Can be applied to these structures …• Extrusion laminations for food packaging
• Oriented polypropylene film coatings
• Document plastification / thermal laminations
• Industrial fabric coatings
• Extensible coatings onto nonwoven fabrics
• Coatings onto woven PP fabrics
• Elastic laminates
13
Key Benefits• Better bond strength vs. hPP & RCP
• Downgauging of the coating layer
• Lower SIT and welding temperature
• Higher UV resistance vs. hPP
• Controlled anti-skid for better pallet stability
• No shrinkage in seal areas results in improved bag appearance
• Good blend partner with PP and PE
• Easy processing on conventional extrusion coating line
• Excellent coextrusion with other PO’s
Adhesion to PP Woven Fabric, 25 gsm coating
0.0
1.0
2.0
Market ref RCPP
New PBE 9 + 30%PP
New PBE 9 + 30%LD
New PBE9 + 30%LD / seal 1
New PBE 2 / seal 2
Bon
d st
reng
th N
/15m
m cohesivefailure
coextrusion
coextrusion
New PBE Grades
Rheology Mastercurve at 290°C
0.1
1
10
100
1000
1 10 100 1000 10000 100000 1000000
Shear rate (sec-1)
Shea
r vis
cosi
ty (P
a.s) New PBE 2
LDPE
hPP
Dat
a fro
m E
xxon
Mob
il C
hem
ical
Dat
a fro
m E
xxon
Mob
il C
hem
ical
Extrusion Coating onto PP Woven Fabric
14
Coextruding New PBE as the tie layer provides outstanding adhesionUse of New PBE as sealant significantly reduces SIT
New PBE Grades as tie layers
Seal strength of 25 gsm based coatings
0.0
15.0
30.0
60 70 80 90 100 110 120 130 140 150 160 170 180
sealing temperature (°C)Se
al s
tren
gth
(N/3
0mm
) MonoExco New PBE 9 + 30% LDPE
CoExcoNew PBE 9 + 30% LDPE / EPE + 30% LDPE
MonoExcoNew PBE 9 + 30% PP
Market ref
Extrusion Coating onto PP Woven Fabric
• outstanding adhesion to the PP woven substrate • low welding temp (hot air) with New PBE + PP blend as sealant• very low SIT with New PBE + LDPE blend as sealant
Dat
a fro
m E
xxon
Mob
il C
hem
ical
Adhesion to PP Woven Fabric, 40 gsm coatingcoextrusion with New PBE in tie layer
0.0
3.5
7.0
9 /E0210
9 /E0210
2 /E0210
9 /30% Plastomer
+ LD
9 /LDPE
2 /LDPE
9 /30%9LDPE
9 / 70% 9
in LDPE
Bon
d st
reng
th N
/15m
m
Plastomeras sealant
LDPE sealant
New PBE + LDPEblend sealant
Dat
a fro
m E
xxon
Mob
il C
hem
ical
15
Extrusion Coating onto Non Woven Fabrics• Adding New PBE to PP (and PE) dramatically increases the extrusion
coated fabric anti-skid properties (increased coefficient of friction)
Dat
a fro
m E
xxon
Mob
il C
hem
ical
.
The vertical axis gives the angle at which a weight covered by the coated fabric starts sliding on an inclined surface covered with the same coated fabric. The higher the angle, the higher
are the anti-slip properties of the coating (measures done based on ASTM D 202).
100% PP 20% New PBE 9
40% New PBE 9
60% New PBE 9
80% New PBE 9
20% New PBE 2
80% New PBE 2
20% New PBE 2 in
LDPE
Type of PBE
16
Extrusion coating onto OPP film
• Monoextrusion coating onto primerless OPP film
0
1
2
3
4
5
Market structure(HEVA with
primer)
20% PBE 2+18% HEVA
5% PBE2+ E8230
5% PBE 6200+ E0230
20% PBE6200+18% HEVA
E8210 richblend
5% PBE 2+ E8210
Bon
d St
reng
th N
/15m
m
Monoextrusion coating produced on EM pilot coating lineBOPP / 15 - 25 gsm coating
Adhesion to primerless OPP in monoextrusion coating
15 gsm coating
25 gsm coating
withPrimer
without Primer
without Primer
Seal strength of 25 gsm polymer coated to primerless OPP
0
10
20
40 50 60 70 80 90 100 110 120 130 140
sealing temperature (°C)
Seal
str
engt
h (N
/15m
m)
80% New PBE + LDPE
60% New PBE + LDPE + CRR
20% New PBE + HEVA
LDPE coated on kraft paper60% New PBE + LDPE + slip + AB
• Outstanding adhesion without primer• New PBE as adhesion improver in HEVA and Plastomer• Seal initiation as low as 60°C for composition rich in New PBE• Addition of chill roll release agent, slip and antiblock recommended
Dat
a fro
m E
xxon
Mob
il C
hem
ical
Dat
a fro
m E
xxon
Mob
il C
hem
ical
New PBEAdhesive Solutions for Surface Protection Film
18
Film structure resins: A/B/C = adhesive layer / LDPE / LDPE = 20 / 40 / 10 µm = 70 µm total Adhesion is measured on PC, PMMA and PVC following AFERA 4001 norm
0
0.5
1
1.5
2
2.5
28% HEVA resin EBE resin New PBE 1FL
Peel
Adh
esio
n (N
/25m
m)
PC PMMA PVC
New PBE as Coextruded Adhesive Layer
New PBE offers high adhesive strength and can be coextruded on PE or PP
Dat
a fro
m E
xxon
Mob
il C
hem
ical
19
New PBE’sEnhance the performance of many film applications
Suitable for cast film, blown film and extrusion coating
Enable low SIT / high hot tack and strong seal strengths
Can be processed on conventional extrusion equipment
Compatible with most polyolefins
Food Law compliant for food packaging applications
In Conclusion
New PBE gives you countless ways to innovate
Cast PP Stretch Hoods
Raffia modification
PP woven sacks
Stretch Cling Surface Protection
Application description
Sealant resin Elastic engine hPP blend partner
Extrusion Coating & Lamination
Blend partner in skin
Adhesive resin in coextrusion
20
And Finally …
Recognition goes to:• Linda Van den Bossche, my Belgian colleague and co-author for her
contributions
21
Disclaimer
©2010 ExxonMobil. To the extent the user is entitled to disclose and distribute this document, the user may forward, distribute, and/or photocopy this copyrighted document only if unaltered and complete, including all of its headers, footers, disclaimers, and other information. You may not copy this document to a Web site. ExxonMobil does not guarantee the typical (or other) values. Analysis may be performed on representative samples and not the actual product shipped. The information in this document relates only to the named product or materials when not in combination with any other product or materials. We based the information on data believed to be reliable on the date compiled, but we do not represent, warrant, or otherwise guarantee, expressly or impliedly, the merchantability, fitness for a particular purpose, suitability, accuracy, reliability, or completeness of this information or the products, materials, or processes described. The user is solely responsible for all determinations regarding any use of material or product and any process in its territories of interest. We expressly disclaim liability for any loss, damage, or injury directly or indirectly suffered or incurred as a result of or related to anyone using or relying on any of the information in this document. There is no endorsement of any product or process, and we expressly disclaim any contrary implication. The terms, “we”, “our”, "ExxonMobil Chemical", or "ExxonMobil" are used for convenience, and may include any one or more of ExxonMobil Chemical Company, Exxon Mobil Corporation, or any affiliates they directly or indirectly steward. ExxonMobil, the ExxonMobil Logo, the Interlocking X Device and all other product names used herein are trademarks of ExxonMobil unless indicated otherwise.
22
Please remember to turn in your evaluation sheet...
Thank you
PRESENTED BY
David R. WeisingerGlobal Film Technical LeaderExxonMobil Chemical [email protected]
Vistamaxx™ Propylene-based Elastomers
23
Test Method Test method based on Test Method Test method based onAbrasion Resistance ASTM D-1242A Hardness : Shore A and D ISO 868 / ASTM D-2240
Adhesion strength ASTM D-1876 Heat Seal Force EM C method
Apparent Density and Bulk factor ASTM D-1895 Heraeus M uffle Furnace EM C method
Basis Weight o f nonwoven fabric WSP 130.1 Heraeus oven UT 6120 : high temperature agglomeration EM C methodBlocking - reblocking ASTM D-3354 Hot Deformation test BS 6469
Bond tester EM C method Hot Knife test EM C method
Bottle compression - Top load ASTM D-2659 Hot Set test EM C method
Bottle drop impact tester ASTM D-2463 Hot Stage M icroscopy EM C methodCeast hollow punch dies punch dies according ASTM , DIN, ISO,.... Hot Tack testing : Heat Seal M ode ASTM F-1921
Clarity measurement ASTM D-1746 Impact resistance by free-falling Dart : method A and B ASTM D-1709
Coefficient Of Friction ASTM D-1894 KBr Press EM C method
Color measurement on Polymer Pellets ASTM E-1331 / E-313 / D-6290 Zeiss microscopy EM C methodCreep test fo r HD bag application by Termaks oven EM C method Limited Oxygen Index ASTM D-2863
Density o f Plastics by Gradient Technique ASTM D-4703 / ASTM D-1505 / ISO 1183 M elt and Crystallization -transition temp measurement by DSC 7 ASTM D-3417 / D-3418
Di-electrical Constant and Dissipation Factor ASTM D-150 M elt and Crystallization measurement by DSC Diamond ASTM D-3417 / D-3418
Drawdown- - Neck- in EM C method M elt Flow Rate : Davenport - M odel 7 ASTM D-1238Elastic Recovery ASTM D-5459 M elt Flow Rate on Davenport melt indexer ASTM D-1238 / ISO 1133B
Elastic Recovery Properties of nonwoven fabric ASTM D-5459 M elt Flow Rate : Göttfert ASTM D-1238 / ISO 1133B
Elmendorf Tear Strength. ASTM D-1922-06a n-Hexane extractables EM C method
Environmental Stress Crack Resistance ASTM D-1693 OCS gel count measurement EM C methodF.T.I.R. EM C method Octagon 200 Sieve Shaker EM C method
Fiber Size of nonwoven fabric EM C method Oil Resistance test EM C method
Fiber tenacity EM C method Peel cling o f stretch wrap film ASTM D-5458
Film stiffness by two-point bending method DIN 53121 Pendulum Impact test ISO 180Film thickness measurement unit Octagon GPA-C EM C method Pendulum Charpy Impact Test ISO 179
Flexural M odulus ASTM D-790A Puncture Resistance EM C method
Flexural M odulus ISO 178 Puncture Resistance ASTM D-5748
Fluoresence M easurement EM C method Flow behaviour- Capillary and Oscillatory Rheology EM C methodsGel Content test ASTM D-2765 Seal Strength sample preparation : Heat Seal mode ASTM F-2029
Gelbo Flex Tester EM C method Shopping Jogging tester EM C method
Gloss 45° ASTM D-2457 Shrink Forces measurement by Retramat ISO14616/DIN 53-369
Gloss measurement ASTM D-2457 Shrinkage tester : Betex EM C method
Test methods + References
24
Test Method Test method based onSingle Core Burning test IEC 332-1
Surface friction ASTM D202Storage Stability test EM C method
Stretch hood test - M D tear propagation EM C methodStretch hood test TD EM C methodStress retention ASTM D-5459
Surface resistivity testing ASTM D-257Swelling Ratio : Davenport - M odel 7 ASTM D-1238
Temperature of deflection under load ISO 75-1&2Tensile Creep of Plastics ASTM D-2990
Tensile Properties at low and high temperature EM C methodTensile Properties o f diaper elastic part WSP 110.4
Tensile Properties o f nonwoven fabric WSP 110.4Tensile Properties on dumbbells ASTM D-638
Tensile Properties on dumbbells ISO R527-2/1BTensile Properties on film ASTM D-882Tensile Properties on non-woven WSP 110.4
Tensile Properties on stretch film ASTM D-882Total Ash EM C method
Total Haze measurement ASTM D-1003Trouser Tear Strength ASTM D-1938
UV and Visible Light Transmission EM C methodVicat Softening Point ISO 306 / ASTM D-1525
Volume Resistivity test ASTM D-257Water Absorption test ASTM D-570
Water Vapor Transmission Rate ASTM F-372Wetting Tension of Polyo lefins ASTM D-2578
Test methods + References con’d.