2nd International Canadian Scientific Research Congress, Toronto, Kanada, 24 - 25 Ekim 2024, cilt.1, sa.1, ss.1, (Tam Metin Bildiri)
One of the polymeric materials
that has the greatest degree of versatility is polyurethane. Diols and
diisocyanates are the reactants that are responsible for their production. It
is possible to synthesize a wide variety of diols, also known as polyols, depending
on the materials that are used as starting materials. When discussing bio-based
polyurethenes, it is understood that the polyol component of these
polyurethenes is bio-based. Because of the limitations imposed by the synthetic
techniques, there are only a few producers and a few types of diisocyanates
that are considered to be available for industrial use. The niration reaction
of petroleum-based intermediates is the first step in a typical commercial
synthesis in which the reaction begins. The synthesis of isocyanates involves
the utilization of fosgene molecule, which occurs after the reduction of those
nitro intermediates. Each and every step is beneficial to both the health of
humans and the environment. Therefore, it is necessary to pay additional
attention and precision throughout the entire operation. In this work, a
comparison is made between the usual method of isocyanate synthesis and the
manufacture of isocyanates beginning with bio-based materials and silver
isocyanate. In addition, the evaluation of this new isocyanate approach takes
into consideration both the economic and environmental aspects of the
investigation. Despite the fact that the initial operational investment cost is
larger than that of other ways, it has been discovered that these expenses can
be greatly decreased over the course of the long term. When the influence on
the environment is taken into consideration, the new synthesis technique
appears to be more environmentally benign.