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VOLUME -24 NUMBER 7
Publication Date: 07/1/2009
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Electronic Mfg. Services
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Special Features: Assembly and Packaging
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July 2009 Issue
Electronic Mfg. Products
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Huntsman Intros 5 New Resin Systems
The Woodlands, TX — Huntsman Advanced Materials has unveiled a series of new resins — a nano-toughened, high-temperature epoxy adhesive and several halogen-free, flame-retardant, benzoxazine resins with excellent thermal and mechanical characteristics. In addition, two resin systems have been developed for use in graphite composite fuel cells for "clean power" applications.
The new products start with: Araldite
EP1000 A/B epoxy adhesive — a two-part, thixotropic paste with a convenient 2:1 mix ratio and low viscosity that accommodates easy handling. The epoxy is supplied in convenient dual-barrel cartridge mixing kits for waste-free application. It is a heat-resistant, nano-toughened, structural epoxy adhesive that cures at temperatures ranging from ambient to 212°F (100°C). It achieves a stable maximum glass transition temperature after gelling at room temperature followed by a mild heat cure. It requires no autoclave cycling, and once cured, has very high lap shear strength and good peel strength.
New benzoxazine thermoset resins are the reaction products of an amine, phenol and formaldehyde. The resulting materials are halogen-free and exhibit physical characteristics including dimensional stability, flame retardance, low shrinkage and water absorption, low dielectric constant, high modulus and excellent high-temperature performance. With this combination of properties, the new benzoxazines are suitable for producing composites, coatings, adhesives and encapsulants.
Fuel cell resin systems were developed in conjunction with GrafTech International Holdings Inc., as part of a U.S. Dept. of Energy-sponsored program. The resins meet stringent requirements for use in manufacturing graphite composite fuel cells for large scale production of automotive, stationary power and back-up power applications.
For automotive fuel cells, a benzoxazine resin was formulated that is suitable for building bipolar plates with superior corrosion resistance, low contact resistance, high thermal conductivity and an extended operating life at high temperatures. The system is based on a phenolic-like backbone and operates at a continuous temperature of 248°F (120°C).
For stationary power and back-up power applications, the company developed a flame-resistant bismaleimide resin designed for use in fuel cells that operate at temperatures of up to 356°F (180°C) in concentrated phosphoric acid. The new product has excellent thermal and electrical conductivity, a low ionic content and can be applied in continuous high volume manufacturing processes using conventional prepregging techniques.
Contact: Huntsman Electronics, 10003 Woodloch Forest Drive, The Woodlands, TX 77380
800-369-2089 or 281-719-6000 E-mail: firstname.lastname@example.org Web:
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