Synthesis of phosphorus containing flame retardants and investigation flame retardant behaviour on the textile applications

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Yıldız Teknik Üniversitesi, Fen Bilimleri Enstitüsü, Türkiye

Tezin Onay Tarihi: 2017

Tezin Dili: İngilizce

Öğrenci: MUHAMMED KANAT

Danışman: Tarık Eren

Özet:

Cotton fabrics have been one of the most widely used bio-based textiles all over the world. They have been widely applied in both civilian and military fields due to their excellent properties, such as hydrophilicity, air permeability, softness and comfortableness and so on. However, the flammability showed their weakness and badly limited the production of high performance flame retardant textile products.

 

Many people constantly use halogen-free phosphorus compounds as flame retardants for cotton textiles. They are cheap to manufacture, are less volatile and toxic, have good thermal stability and promote char formation during the burning process. Phosphorus-compounds can catalyze char formation and reduce the flammability of cotton textiles.

 

In this study, we have synthesized two types of reactive phosphorus containing flame retardants (MKT-1 and MKT-2) that can be covalently attached to the textile surface. MKT-1 possess anhydride and acid functionality that can react with cellulose -OH functionality. Besides that, MKT-2 has silanol groups that can react with hydroxy group.

 

The structures of reactive flame retarndats (MKT-1 and MKT-2) were characterized by ¹³C- and ³¹P NMR.  Thermal properties of the cotton fabrics were investigated by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), standard test method for flammability of blankets (BS 5852) and X-ray photoelectron spectroscopy.