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This is the free Material Data Center Datasheet of Styroflex® 2G66 - SB - INEOS Styrolution

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Product Texts
Styroflex® 2G66 is a styrene-butadiene block copolymer (SBC) with the properties of a thermoplastic elastomer (S-TPE). Styroflex® 2G66 is the only S-TPE with a styrene content of at least 60 % styrene and a rubber fraction of at least 70 %. Characteristic properties of Styroflex® 2G66 are therefore: high transparency, excellent thermostability, very high elongation at break and high resilence. Styroflex® 2G66 is more polar than comparable SBS or SEBS grades and offers a good printability.
Applications: Styroflex® 2G66 is a very versatile material, suitable for a variety of applications: In multilayer (coextruded with PE-EVA), thin-gauge film for the supporting layer, Styroflex® 2G66 is used e.g. for packaging fresh meat. Styroflex® 2G66 is also used for the modification of styrenic polymers; e.g. blended with high impact polystyrene it improves the toughness and the stress cracking resistance (ESCR) significantly. Styroflex® 2G66 is also suited for two-component injection molding, especially with polystyrene, to which it has excellent adhesion. Styroflex® 2G66 and compounds based on Styroflex® may be used for conventional injection molding (eg. of toys) and the extrusion of profiles, flexible tubing and soft foams.
Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Melt volume-flow rate, MVR 14 cm³/10min ISO 1133
Temperature 200 °C -
Load 5 kg -
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 120 MPa ISO 527
Yield stress 4 MPa ISO 527
Yield strain 5 % ISO 527
Nominal strain at break >50 % ISO 527
Charpy impact strength, +23°C N kJ/m² ISO 179/1eU
Charpy impact strength, -30°C N kJ/m² ISO 179/1eU
Charpy notched impact strength, +23°C N kJ/m² ISO 179/1eA
Thermal propertiesValueUnitTest Standard
ISO Data
Burning Behav. at 1.5 mm nom. thickn. HB class IEC 60695-11-10
Thickness tested 1.6 mm -
Burning Behav. at thickness h HB class IEC 60695-11-10
Thickness tested 3.2 mm -
Electrical propertiesValueUnitTest Standard
ISO Data
Relative permittivity, 100Hz 2.5 - IEC 62631-2-1
Relative permittivity, 1MHz 2.5 - IEC 62631-2-1
Volume resistivity >1E13 Ohm*m IEC 62631-3-1
Surface resistivity 1E15 Ohm IEC 62631-3-2
Optical propertiesValueUnitTest Standard
ISO Data
Haze 1.4 - ISO 14782
Other propertiesValueUnitTest Standard
Water absorption 0.07 % Sim. to ISO 62
Humidity absorption 0.07 % Sim. to ISO 62
Density 1000 kg/m³ ISO 1183
Film PropertiesValueUnitTest Standard
ISO Data
Elmendorf Tear resistance, parallel 650 N ISO 6383-2
Elmendorf Tear resistance, normal 800 N ISO 6383-2
WVTR, 23°C/85%r.h. 0.27 g/(m²*d) ISO 15106-1/-2
Oxygen transmission rate, 23°C/0%r.h. 27.2 cm³/(m²*d*bar) ISO 15105-1/-2
Thickness of specimen 0.05 mm -
Characteristics
Processing
Injection Molding, Film Extrusion, Profile Extrusion, Transfer Molding
Special Characteristics
Sterilizable
Certifications
Food contact, Food approval 10/2011, Food approval FDA 21 CFR, Medical Grade, Biocompatibility ISO 10993, US Pharmacopeia Class VI Approved, Drug Master File, Long term supply assurance
Applications
Medical
Regional Availability
Other text information
Injection molding
PROCESSING
injection molding, Melt temperature, range: 190 - 220 °C
injection molding, Mold temperature, range: 30 - 50 °C
Film extrusion
PROCESSING
Extrusion, Blown film, Melt temperature: 170 - 190 °C
Extrusion, Flat film, Melt temperature: 170 - 240 °C
Application examples
Stretch hoods
Transport pallets
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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