ETPU (Engineering Thermoplastic Polyurethane Elastomer), engineering polyurethane elastomer material. It is a unique elastomeric material composed of amorphous and rigid molecular chains, and does not contain any flexible segments in its molecular structure. Therefore, ETPU materials not only have the strength and dimensional stability of amorphous resins, but also have the chemical resistance, fatigue resistance and wear resistance of crystalline resins. ETPU products can replace high-performance materials such as: nylon 11, nylon 12, polysulfone, polyformaldehyde, polyimide, reinforced polyester, etc., suitable for applications that need to withstand strong impact and frequent use, require transparency, dimensional stability and chemical resistance Product with excellent performance. Such as: plastic fasteners, connectors, filter housings, water cups, potentiometers, etc.
Isoplast is an ETPU product trademark registered by the American Dow Corporation in 1983. At the beginning of 2009, this series of products were acquired by the United States Lubrizol Company and merged into its subsidiary. It has been officially promoted and sold in mainland China and other regions. Isoplast series products are available in three specifications: transparent, impact-resistant and long glass fiber reinforced.
Ø Transparency level
Grades: 301, 302EZ, 2530, 2531
Characteristics: the light transmittance can reach 88-90%; the tensile elongation is> 50%; the low molding shrinkage rate; the chemical resistance is excellent.
Impact resistance level
Grades: 101, 202EZ, 2510
Characteristics: Notched impact strength up to 1280 J / m; tensile elongation> 75%; low molding shrinkage; excellent resistance to acids and alkalis, oil and organic solvents.
Ø Long glass fiber reinforced grade
Grades: 101LGF40, 101LGF60, 202LGF40, 202LGF60
Characteristics: The rigidity modulus can reach 10,000-17000Mpa, the strength reaches 234Mpa; the molding shrinkage rate is less than 0.1%, the small anisotropy; the notched impact strength at -40 ° C is above 850J / m; the chemical resistance is excellent.