Potential for new generation of superplastics
Scientists are reporting an in-depth validation of the discovery of the world’s first mass producible, low-cost, organoclays for plastics. The powdered material, made from natural clay, would be a safer, more environmentally friendly replacement for the compound widely used to make plastics nanocomposites. A report on the research appears in ACS’ Macromolecules, a bi-weekly journal: “The Role of Surface Interactions in the Synergizing Polymer /Clay Flame Retardant Properties.”
Miriam Rafailovich and colleagues focused on a new organoclay developed and patented by a team of scientists headed by David Abecassis. The scientists explain that so-called quaternary amine-treated organoclays have been pioneering nanoparticles in the field of plastics nanotechnology. Just small amounts of the substances make plastics flame retardant, stronger, and more resistant to damage from ultraviolet light and chemicals. They also allow plastics to be mixed together into hybrid materials from plastics that otherwise would not exist. However, quaternary amine organoclays are difficult to produce because of the health and environmental risks associated with quaternary amines, as well as the need to manufacture them in small batches. These and other disadvantages, including high cost, limit use of the materials.
The new organoclay uses resorcinol diphenyl phosphate (which is normally a flame retardant), to achieve mass producible organoclays which can be made in continuous processing. In addition these organoclays are cheaper, generate less dust, and are thermostable to much higher temperatures (beyond 600 degrees Fahrenheit). This clay has also been proven to be superior for flame retardance applications. In addition, unlike most quaternary amine based organoclays, it works well in styrene plastics, one of the most widely used kinds of plastic.
Source: American Chemical Society /...
The Institute of Nanotechnology puts significant effort into ensuring that the information provided on its news pages is accurate and up-to-date. However, we cannot guarantee absolute accuracy. Consequently, the Institute of Nanotechnology disclaims any and all responsibility for inaccuracy, omission or any kind of deficiency in relation to the news items and articles hosted herein.
- 25 November 2013Nanomedical Device and Systems Design: Challenges, Possibilities, Visions
- 01 November 2013NanoSafety Cluster Launches its first newsletter
- 14 October 2013Developing EU–Latin America Nanotech Cooperation - the NMP–DeLA project kicks off
- 24 September 2013Should We Use Nanotechnology to Feed Ourselves?
- 18 September 2013UCLA researchers' smartphone 'microscope' can detect a single virus, nanoparticles
- View All