Polyetherimide (PEI)

Alternative und Handelsbezeichungen
Ultem™

Want to keep this datasheet? Save it now in your required format

Description

Long-Term Heat Resistance: Excellent stability of physical and mechanical properties at elevated temperatures thanks to high glass transition temperature of 217°C. available with relative thermal indices (RTI) up to 180°C

Strength and Stiffness: Outstanding strength and amorphous thermoplastic among the available alternatives, with predictable stiffness and strength up to 200°C. unfilled, transparent grades are equal in strength to other thermoplastics with opacifying fillers.

Dimensional Stability: Among the most dimensionally stable thermoplastics available, offering predictability over a wide temperature range. filled grades offer exceptionally high-tolerance dimensional capabilities.

Environmental Stress & Cracking Resistance: Unlike most other amorphous thermoplastics, ultem resins retain strength and resist stress cracking when exposed to automotive and aircraft fluids, aliphatic hydrocarbons, alcohols, acids, and weak aqueous solutions.

Flammability, Smoke Generation and Toxicity: Inherent flame resistance without additives in most grades - exceptionally difficult to ignite, with a limiting oxygen index (LOI) of 47%, meeting ul94 v0 specifications in sections as thin as 0.41 mm. generates extremely low smoke per the nbs smoke evolution test, with products of combustion no more toxic than those of wood.

Diese Materialdaten wurden von M-Base zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

All categories

Eigenschaften

Allgemein

Property	Value
Dichte	1.27 - 1.3 g/cm³ Show Material materials with Dichte of 1.27 - 1.3 g/cm³

Mechanisch

Property	Value	Comment
Dehnung	60.0 - 100.0 % Show Material materials with Dehnung of 60.0 - 100.0 %
Elastizitätsmodul	2.9 - 3.3 GPa Show Material materials with Elastizitätsmodul of 2.9 - 3.3 GPa
Schlagfestigkeit, Charpy gekerbt	3.0 - 4.0 kJ/m² Show Material materials with Schlagfestigkeit, Charpy gekerbt of 3.0 - 4.0 kJ/m²
Schlagzähigkeit, Charpy ungekerbt	110 kJ/m² Show Material materials with Schlagzähigkeit, Charpy ungekerbt of 110 kJ/m²
Zugfestigkeit	85.0 - 110.0 MPa Show Material materials with Zugfestigkeit of 85.0 - 110.0 MPa	at 6-10% strain

Thermisch

Property	Value
Koeffizient der thermischen Ausdehnung	5.5e-05 - 6e-05 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 5.5e-05 - 6e-05 1/K
Spezifische Wärmekapazität	1200 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 1200 J/(kg·K)
Wärmeleitfähigkeit	0.22 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 0.22 W/(m·K)
Entflammbarkeit	UL 94 V0

Elektrisch

Property	Value
Dielektrizitätskonstante	3.2 [-] Show Material materials with Dielektrizitätskonstante of 3.2 [-]
	3.5 [-] Show Material materials with Dielektrizitätskonstante of 3.5 [-]
spezifischer Widerstand	10000000000000.0 - 1000000000000000.0 Ω·m Show Material materials with spezifischer Widerstand of 10000000000000.0 - 1000000000000000.0 Ω·m

Optisch

Property	Value
Transparenz	yes

Technological properties

Property

Application areas

High voltage breaker housings, multi-way connectors, parts for microwaves, parts for break cylinders, carburetor housings, sterilization containers

Processing methods

Injection molding

Polyetherimide (PEI)

Description

Ashby charts

Anwendungen

Empfohlene Literatur

Eigenschaften