The standard color of tempalux stock shapes is light amber. Physical properties will be different than published data usually lower 3. The mechanical properties of a material affect how it behaves as it is loaded. High strength plastic with outstanding electrical and high service temperature properties. Polyetherimide pei resins are manufactured by sabic under the trade name ultem, as a result of acquiring the general electric plastics division in 2007.
An introduction to the grades of ultem plastic reading. The bondit b45th has sufficient elasticity to absorb stresses and minimize risk of stress cracking of the ultem. Exhibits greater strength than most other thermoplastics. Tips on adjusting tr90 or ultem frame material if this is your first visit, be sure to check out the faq by clicking the link above. This material is also more notch sensitive than radel ppsu. Ultem engineering plastics wah lee group south eas asia. For the susceptibility to stresscorrosion cracking, the directional variation can be appreciable and must be considered in the design of the fabricated hardware. Ultem polyetherimide is a material with high dielectric strength and excellent electrical properties. It is an amorphous, transparent, and amber thermoplastic with the characteristics similar to peek. Generalpurpose polystyrene gpps highimpact polystyrene. The ultem resin family of amorphous thermoplastic polyetherimide pei resins offers outstanding elevated thermal resistance, high strength and stiffness, and broad chemical resistance. Ultem resin crs5111 is an amorphous polyetherimide pei copolymer filled with 10% glass fiber. The stress that is introduced into the material during extrusion is not relieved in this part of the process because the plastic resin sets up as soon as it comes out of the extruder. 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.
As jack action hinted at with his comment about strength, stress will be the same, provided the material properties function alike in both cases. Extem resin is expected to retain the ul performance and flame, smoke and toxicity strengths of ultem resin. In order to eliminate these problems extruded products are annealed. Ultem this unfilled, generalpurpose grade combines exceptional. A reputation for reliability, this famously overachieving thermoplastic has wellrounded thermal, mechanical and chemical properties that make. It is an exceptional material offering above average performances in mechanical, thermal and electrical properties. Is a high flow grade with enhanced chemical resistance to strong acids, bases, aromatics, and ketones. Because the mechanisms of failure for solvent attack and environmental stress cracking are so different, the means of optimizing material parameters are different as well. Ultem is one of the most dimensionally stable thermoplastics. This material is strong, chemical and flameresistant, easy to use, and able to withstand extremely high temperatures while retaining a set of stable electrical properties. Relative to peek it is less temperature resistant, less expensive and lower in impact strength. Certificates of analysis document test results and identification for both raw material and.
Ultem 1010 resin offers superior tensile strength and excellent chemical and thermal resistance for an fdm thermoplastic. Also, pei shows stress cracking in chlorinated solvents which include carbon tetrachloride, tetrachloroethylene and others. Unlike most other amorphous thermoplastics, ultem resins retain strength and resist stress cracking when exposed to automotive and aircraft fluids, aliphatic. It performs continuously to 340 degreesf, making it ideal for high strength high heat. Prediction and validation of thermal mechanical properties. It can perform continuously up to 340f thanks to its high flammability rating. Polyetherimides pi, pei are high performance engineering thermoplastics of amber to transparent color. Quantum polymers maintains a large inventory of ultem extruded rods and plates. Pei has more than just excellent heat and flame resistance. Ultem polyetherimide is a semitransparent high strength plastic material that can operate in high service temperature environments. The ultem tm family of amorphous thermoplastic polyetherimide pei resins offers outstanding elevated thermal resistance, high. The formation of stress cracks also known as environmental stress cracking is the most common cause of damage to plastic components and is particularly critical in the case of trasparent plastic. Generalpurpose polystyrene gpps highimpact polystyrene hips. Research ultem properties, ultem and uses at curbell plastics.
Also, the amorphic structure of ultem can cause relaxation under influence of bondings on the long term. High stress levels in plastic are a common cause of component field failures. It is resistant to stress cracking in a variety of environments including fluids used in the aerospace industry, weak aqueous solutions, acids and even aliphatic hydrocarbons and alcohols. Ultem pei polyetherimide is a highstrength amorphous polymer.
Polystyrene and its characteristic properties mechanical properties thermal properties rheological properties. Ultem resin family of amorphous thermoplastic polyetherimide pei resins offers outstanding elevated thermal resistance, high strength and stiffness and broad chemical resistance. No matter how much experience you have working with plastics, sometimes a direct comparison of physical properties is the best way to determine which material is best for your applicationproject. In particular watch out for notchsensitive geometries. Reducing stress enhances the mechanical and thermal properties of a material by limiting the opportunity for cracking and other issues like the ones above. Processability extem resin can be processed in conventional drying and injection molding. Ultem has high mechanical properties and performs in continuous use to 340 f 170 c and is easily machined and fabricated with excellent strength and rigidity.
Plastic stress test protocols connecticut plastics. Theres more than one particular type of ultem pei you can machine, and each has slightly different properties for perfecting. Stress cracks or surface crazing near stress concentrators like threads can be a sign of future. Ultem 9085 3d print highperformance parts in tan or black. Ultem maintains its physical and mechanical properties. Stress relieving of engineering plastics thyssenkrupp. Light colored coatings can be made from this material. Tempalux stock shapes display property retention and resistance to environmental stress cracking when exposed to a wide variety of chemicals. Ultem 9085 resin cg meets stringent test criteria and retains traceability required by the aerospace industry. Ultem is resistant to hot water and steam and can withstand repeated cycles in a steam autoclave. Polyetherimide pei is an amorphous, transparent and amber high performance thermoplastic with the characteristics common to this group see polyetheretherketone peek. Both the condensation products and the solvent need to be fully removed prior postprocessing of the resin to achieve high performance properties. Considerations when machining ultem connecticut plastics. Ultem pei thermoplastic for aerospace the industry.