Mitsui TPX

Technical datasheet

TPX™ DX231

Supplied byMitsui Chemicals- Last Updated on Dec 15, 2020

TPX™ DX231 by Mitsui Chemicals is a high modulus polymethylpentene with excellent transparency equivalent to glass and acrylic. It boasts superior releasability and is one of the lightest polymer materials among thermoplastic plastics. Recommended for extrusion coating and is also applicable for injection molding and extrusion processing by fiber spinning. Offers excellent chemical-, heat- & steam resistance and high durability against acid, alkali and alcohol. Exhibits gas permeability, low refractive index, low dielectric property and high insulation properties equivalent to fluororesin. Possesses low density as well as high melting point and can be used at high temperature. Possible applications include food containers, release film for FPC, rubber hoses and release paper for synthetic leather. TPX™ DX231 is also suitable for animal cage, resin modification, LED mold, experimental apparatuses and hollow fiber.
Chemical family:
Product Type:
AppearancePellets

Documents related to TPX™ DX231

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Benefits

Modulus, High|

Chemical resistance, High|

Durable|

Density, Low|

Transparency, High|

Mold Release, Good|

Gas Permeability, High|

Alcohol Resistant|

Heat Resistance, High|

Alkali Resistant|

Acid Resistant

Compliance

No data available

Availability

Product Status:COMMERCIAL

TPX™ DX231 properties

Electrical properties

PropertiesValue & unitTest conditionTest method
Dielectric Breakdown Voltage31 kV/mmInjection Molded Specimen, 2mm ThickIEC 60243-1
Dielectric Constant2.12 1MHz, Injection Molded Specimen, 2mm ThickIEC 60250
Volume Resistivity> 1016 ohm-cmInjection Molded Specimen, 2mm ThickIEC 60093

Mechanical properties

PropertiesValue & unitTest conditionTest method
Flexural Modulus1550 MPaCross Head Speed:1mm/min, 4mm Test PieceISO 178
Flexural Strength41 MPaCross Head Speed:1mm/min, 4mm Test PieceISO 178
Fractured Strain5 %Cross Head Speed:5mm/min, 4mm Test PieceISO 527
Fractured Strain5 %Cross Head Speed:50mm/min, 4mm Test PieceISO 527
Fractured Stress31 MPaCross Head Speed:50mm/min, 4mm Test PieceISO 527
Fractured Stress26 MPaCross Head Speed:5mm/min, 4mm Test PieceISO 527
Hardness, Rockwell90 HRR ScaleISO 2039
Impact Strength, Notched Izod1 kJ/m2Injection Molded Specimen, 4mm Test Piece, Part MCI MethodISO 180
Impact Strength, Unnotched Izod6 kJ/m2Injection Molded Specimen, 4mm Test Piece, Part MCI MethodISO 180
Modulus of Elasticity1490 MPaCross Head Speed:2mm/min, 4mm Test PieceISO 527

Optical properties

PropertiesValue & unitTest conditionTest method
Haze3.6 %Light Source:D65, 2mm Thick Test PieceISO 14782
Refractive Index1.462 Light Source:D Line, 2mm Thick Test PieceISO 489
Transmittance, Visible92 %Light Source:D65, 2mm Thick Test PieceISO 14782

Other properties

PropertiesValue & unitTest conditionTest method
Tensile Strength at Yield26 MPaCross Head Speed:5mm/min, 4mm Test PieceISO 527

Physical properties

PropertiesValue & unitTest conditionTest method
Density832 kg/m3Gradient Method, PelletsMCI Method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)100 g/10 minAt 260°C, 5kgf Applied Force, PelletsMCI Method
Water Absorption0.01 %1mm Thick Test PieceISO 62

Thermal properties

PropertiesValue & unitTest conditionTest method
Deflection Temperature at 0.46 MPa (66 psi)90 °CHeat Speed: 120°C/hr, 4mm Test PieceISO 75
Melting Point232 °CDSCMCI Method
Vicat Softening Temperature179 °CHeat Speed: 50°C/hr, Applied Load: 10N, 4mm Test PieceISO 306

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