Daicel USA (Ft. Lee, NJ, US) has launched two new grades of cycloaliphatic epoxies, Celloxide 8000 and Celloxide 8200, offering good heat resistance and strong flexural modulus properties. These improvements, says Daicel, have been achieved without sacrificing the superior transparency of the Celloxide brand. Molded properties of Celloxide 8000 neat resin include a Tg of 354°C (TMA) and a flex modulus of 3705 MPa, as compared to a Tg of 155°C and a modulus of 2532 MPa for a bisphenol-A epoxy. The Celloxide 8200 is said to exhibit an even higher modulus of 4407 MPa. Daicel says the Celloxide epoxy systems are known for the ability to be molded with less energy in a short time, resulting in a cured product with good mechanical strength. Furthermore, the cycloaliphatic epoxies manufactured by Daicel are reportedly naturally very low in viscosity and solvent free, thereby allowing for green processing. Daicel USA will be exhibiting at SAMPE 2015 in Baltimore, MD, US, May 19-20, 2015.
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