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News

Amorphous thermoplastic polyimide (TPI) resin for higher continuous use temperature

Sabic Innovative Plastics : 20 April, 2011  (New Product)
Sabic Innovative Plastics has announced the newest addition to its Extem UH family of amorphous thermoplastic polyimide (TPI) resins. It delivers high performance at prolonged extreme temperatures.
Amorphous thermoplastic polyimide (TPI) resin for higher continuous use temperature
This new grade not only delivers unprecedented heat resistance, but also opens vast new design possibilities by providing exceptional dimensional stability for thin-wall moulding.

Using Extem UH resin, customers in the automotive, aerospace, semiconductor, electrical and chemical industries can achieve superior mechanical performance vs polyetheretherketone (PEEK); greater system cost advantages compared to cross-linked polyamide imide (PAI). There is much improved design freedom compared to ceramics and broader metal replacement opportunities in applications where no previous resins were available.

With its high glass transition temperature, new Extem UH 1019 resin is the first unfilled thermoplastic to achieve a continuous use temperature rating of 260C according to UL 746B. Although PEEK a semi-crystalline material offers similar heat performance, its mechanical properties may not withstand high continuous use temperatures. In contrast, Extem UH 1019 resin delivers eight times better stiffness, as well as superior creep and extreme low thermal expansion performance. These properties enable the design of thin walls and complex shapes with high dimensional stability, as well as the potential for weight-out.

Compared to PAI, which requires cross-linking that impacts yields, Extem UH 1019 resin uses simple, high-yield injection molding and extrusion processes and can be recycled.

Further, Extem UH 1019 resin has the potential to replace ceramic and metal in applications where thermoplastics are not suitable. In these cases, the SABIC Innovative Plastics material brings advantages of weight-out, excellent design flexibility and system cost reduction.

Extem resins are inherently flame retardant without the use of halogenated additives that can pose environmental risks and raise regulatory compliance issues.

Potential applications include wire and cable insulation, high performance connectors and accessories, semicon plasma chamber components and pickup systems, high heat film, bearing cages, gears, membranes, stockshapes and composites.
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