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Zeon Chemicals Expands Line of Toughened Tackifiers

01 March 2003

Zeon Chemicals is expanding its line of toughened tackifier resins with the commercialization of DuoMod ZT-2, designed for low temperature cure VARTM composites

This new tackifier is useful for curing at ambient temperatures up to 250°F (120°C). The DuoMod ZT-2 toughener follows DuoMod ZT-1, designed for RTM and VARTM composites cured at 250°F and above. Like its predecessor, DuoMod ZT-2 increases the fracture toughness and damage tolerance of VARTM composites, without the loss of laminate flexural and laminate properties common with conventional tougheners.

Mark Shioleno, Zeon Sr. Marketing Specialist said, “DuoMod ZT-2 addresses the need for improved damage tolerance in low-temperature cure VARTM systems. Its enhanced tack provides better preform integrity and facilitates debulking. This new product further demonstrates Zeon’s commitment to providing a complete range of toughening solutions to the composites industry.”

Ideal applications for the DuoMod ZT-2 include epoxy VARTM composites for sporting goods, automotive, marine, construction, and consumer applications. The DuoMod ZT-2 tackifier is supplied in an acetone solution for easy spraying onto a variety of fabrics and fibers. It can be used with any low-temperature cure epoxy matrix resin and since DuoMod ZT-2 is applied only to the fiber preform, it does not affect resin processing.

Duomod ZT-2 has been evaluated in commercially available low-temperature cure epoxy VARTM systems from Applied Poleramic, Gougeon Brothers and Resolution Performance Products. Compared to the unmodified control laminates, Mode I fracture toughness (GIC) was improved by up to 147%, while Mode II toughness (GIIC) increased by up to 106%.





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