Two firms reported at GPEC that barrier beer bottles, another unused PET waste stream, can also be reclaimed by alloying
Weiss, associate director of the University of Connecticut's Institute of Materials Science, says much work still remains to be done in order to fully optimize polymer compatibilizers and to understand the science of alloying at the molecular level.
Senkler, technical director of engineering polymers for Du Pont, says his firm's major alloying thrust will continue to be functionalizing thermoset rubbers as a dispersed phase to toughen functionalized nylons and polyesters.
Mn is present in most charge materials, and its use in steels as an alloying constituent has increased.
For this reason, if Mn is to be used as an alloying element in gray iron, it is recommended that it be added to the furnace at least 10 mm prior to tapping.
The technology reportedly is an offshoot of reactively alloying polyolefins with nylon to produce "supertough" nylons.
Methods of improving thermal properties of these materials could include new monomers, novel polymerization chemistry, or alloying and compatibilizing them with another resin, perhaps polycarbonate.
PVC upgraded to an engineered material, offers inherent advantages of flame retardance, low cost and broad alloying properties, says William J.
George Barile, manager of styrenics R&D, sees an opportunity to increase the thermal performance of PS through alloying and new comonomer technologies.
A rare early glimpse of research advancements in alloying
and compatibilizers was provided by PLASTICS TECHNOLOGY last year (see PT Feb.
Besides producing alloying
metals in Europe, Canada and the United States, the company is a major European producer of aluminum and is involved in technology for the metals industry.
Dispersoid colonies typically result from oxidation of localized concentrations of magnesium that form during alloying
This is necessary because the quantity of alloying
elements retained in solid solution has an important bearing on the electrical properties.
In addition, the 50-gram sample cannot maintain alloy chemistry over the course of the test since certain alloying
elements, such as magnesium, readily volatize from so small a quantity of molten metal.
Along with basic research into the area of the effects of alloying
elements on the microstructure and properties of cast iron, developments in ductile iron dominated the cast iron program this year.