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Dow Introduces AIRSTONE™ 77-T3 Epoxy-based Adhesive System at China Composites Exhibition

Published on 2011-09-21. Author : SpecialChem

Midland, MI -- The Dow Chemical Company ("Dow"), has announced the launch of the Dow AIRSTONE™ 77-T3 adhesive, an epoxy-based adhesive system used to bond half shells together to create finished wind blade structures. The company said Dow AIRSTONE™ 77-T3 represents a natural evolution in the line of Dow AIRSTONE™ 77 adhesives, which are widely used by fabricators to help meet wind energy industry requirements for stronger and lighter weight wind blades. Dow AIRSTONE™ 77-T3 will be highlighted this week at the China Composites Exhibition in Dow's booth, A1002-1117, at the Shanghai World Expo and Convention Center.

Dow said Dow AIRSTONE™ 77-T3 offers an optimized balance of 30 percent longer open time and 10 percent faster cure rate compared to previous adhesives, for increased fabrication productivity. The company said the new adhesive is also less thixotropic than traditional wind blade adhesives, which makes it easier to control during application and can reduce the need for follow-up rework to modify or reshape cured adhesive along bonded seams. Easier application can also lower defect and scrap rates, resulting in significant cost-savings, Dow said. Dow AIRSTONE™ 77-T3 optimizes wind blade mechanical performance, providing 30 percent greater fracture toughness for increased blade durability.

According to Jean Luc Guillaume, Dow Global Business Leader for Wind Energy, Dow AIRSTONE™ 77-T3 is the latest innovation within Dow's line of AIRSTONE™ Systems™ for Wind Energy. "AIRSTONE™ Systems include adhesives, infusion systems, laminating systems, and mold-building systems," Guillaume said. "Dow AIRSTONE™ 77-T3 and all of our AIRSTONE™ Systems reflect Dow's commitment to providing tested and reliable innovation for the wind energy industry. The adhesives technology represented by Dow AIRSTONE™ 77 products continues to provide significant advantages to blade designers, fabricators, and turbine manufacturers, all of whom have a stake in the successful adoption of larger, lighter turbine blades by the wind energy industry."

FORTEGRA™ Epoxy Tougheners

Also highlighted in Shanghai is Dow's comprehensive line of FORTEGRA™ epoxy tougheners for composites, as well as structural adhesives, electrical laminates, casting and coating applications. Dow said the three toughener chemistries in the FORTEGRA™ line provide alternative solutions to enhancing epoxy toughness: 100-Series products are based on proprietary Dow block copolymer technology, 200- Series products are elastomer-modified epoxy functional adducts formed from the reaction of liquid epoxy resin and CTBN elastomer, and 300-Series products are stable dispersions of pre-formed novel core shell rubber (CSR) particles in epoxy resin.

VORAFORCE™ Composites System

Dow is also showcasing its range of VORAFORCE™ Composite Systems, which are high performance epoxy and polyurethane-based solutions tailored to modern fabrication technologies such as filament winding, pultrusion, infusion, Reaction Injection Molding (RIM) and Long Fiber Injection (LFI). Specific systems displayed in Shanghai will include our latest winding systems for Compressed Natural Gas (CNG) tanks, reverse osmosis tanks and industrial rollers, high-speed pultrusion systems for insulator rods, as well as fast-curing polyurethane LFI for in-mold, coated structural parts. A common element of VORAFORCE™ Composite Systems is their high level of quality and performance, enabling customers to gain competitive advantage on critical factors such as production efficiency, strength, toughness and temperature resistance.

About Dow

Dow combines the power of science and technology with the "Human Element" to passionately innovate what is essential to human progress. The Company connects chemistry and innovation with the principles of sustainability to help address many of the world's most challenging problems such as the need for clean water, renewable energy generation and conservation, and increasing agricultural productivity. Dow's diversified industry-leading portfolio of specialty chemical, advanced materials, agrosciences and plastics businesses delivers a broad range of technology-based products and solutions to customers in approximately 160 countries and in high growth sectors such as electronics, water, energy, coatings and agriculture. In 2010, Dow had annual sales of $53.7 billion and employed approximately 50,000 people worldwide. The Company's more than 5,000 products are manufactured at 188 sites in 35 countries across the globe. References to "Dow" or the "Company" mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly noted.

Source: Dow


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