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Formula: PMP TPX®
Form: Foil/Film/Sheet
Material: Polymethylpentene (PMP, TPX™)
Commodity: Polymers
Polymethylpentene (PMP) Film, also known as TPX™, is a thermoplastic polyolefin that provides high visible light transmission (94%) and thermal stability up to 170°C, making it effective for fabricating micro-optical and photonic devices. Its chemical resistance and low shrinkage enable precise replication of nanostructures down to 100 nm through hot embossing or molding processes. In research and laboratory environments, PMP Film supports the development of subwavelength optics, grating couplers, and integrated biosensors. Its optical clarity and formability make it valuable for prototyping organ-on-a-chip systems, optical communication components, and low-cost biosensors, supporting scalable photonic and biomedical innovation.
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Tolerances

Foil/Film/Sheet
Thickness ±20%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Good-Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Fair-Poor
Greases and Oils Good-Fair
Halogenated Hydrocarbons Fair-Poor
Halogens Fair-Poor
Ketones Good-Fair
Electrical Properties
Element Value
Dielectric constant @1MHz 2.12
Dissipation factor @ 1kHz 0.0002
Volume resistivity( Ohmcm ) >10¹⁶
Physical Properties
Element Value
Flammability HB
Refractive index 1.463
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 17
Water absorption - over 24 hours( % ) 0.01
Density( gcm⁻³ ) 0.835
Mechanical Properties
Element Value
Hardness - Rockwell R85
Elongation at break( % ) 15
Tensile modulus( GPa ) 1.5
Izod impact strength( J m⁻¹ ) 49
Tensile strength( MPa ) 25.5
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 100
Heat-deflection temperature - 1.8MPa( C ) 40
Lower working temperature( C ) 20
Upper working temperature( C ) 75-115
Specific heat( J K⁻¹ kg⁻¹ ) 2000
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.17@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 117

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