Akademik Veri Yönetim Sistemi
Sustainability in the Textile and Apparel Industries, Subramanian Senthilkannan Muthu,Miguel Angel Gardetti, Editör, Springer, London/Berlin , Heidelberg, ss.1-178, 2020
Increasing
environmental problems, economic and environmental problems associated with
global warming, waste management problems, decreasing fossil resources,
fluctuations in oil prices and dependence on oil; has led to an increase in
research for renewable and sustainable new materials that are friendly to our
health and environment. These studies can be focused on certain materials by
looking at the width of the application areas. One of these materials is
polyurethane (PU).
PU
draws attention about sustainability because it is one of the most important
polymers and has a wide range of application areas. It has versatile and excellent physical,
chemical and mechanical properties that increase demand in various areas such
as foam, elastomer, adhesive, liquid crystals, sealants, ink, paint and coating
applications. Good flexibility, elongation, high impact and tensile strength,
high abrasion resistance, good weather resistance, excellent gloss, color
protection and corrosion resistance are some of its attractive features.
Recently,
the use of green materials and sustainability has made it possible to highlight
the presence of natural materials that are alternative to synthetic materials.
Natural products have been searched for PU synthesis and many studies have
shown that natural products can be used in the production of polyol.
Vegetable
oils among renewable resources are one of the cheapest, most abundant and
renewable natural materials that can be used in many industrial applications. PUs
can be synthesized by partial or complete replacement of polyols from renewable
sources such as vegetable oils with petrochemical polyols. There are many
studies in the literature on polyol production from different vegetable oils
such as soybean oil, castor oil, corn oil, rapeseed oil, palm oil, karanja oil,
andiroba oil, cottonseed oil.
In
this chapter, the composition and properties of PU materials used in textile
and other sectors are explained and the possibilities for bio-based PU
synthesis are mentioned.