Influence of Ti-Si-N Nanocomposite Coating on Heat Radiation Resistance of Fireproof Fabrics

Abstract

Fireproof fabrics are commonly used for protection of fireguards. Such materials must be characterized by improved heat resistance, especially to radiation and flame. In this paper, fireproof fabric (NATAN and PROTON—trademark names) was covered with Ti-Si-N nanocomposite reflective coating using magnetron sputtering. The fabrics were subjected to heat radiation of heat flux density from 0.615 to 2.525 kW/m2. A testing stage equipped with a heat source, thermal imaging camera and thermocouples was used. Two variants of the coatings were studied: Ti-Si and (Ti,Si)N considering different thicknesses of layers. The temperature increment and time to reach the pain threshold (60 °C) which corresponds approximately to a 2nd-degree burn according to Henriques criterion were analyzed. In addition, the microstructural analysis of the samples using a scanning electron microscope (SEM) equipped with energy dispersive spectroscopy (EDS) system was performed. The improvement of heat resistance showed for Ti-Si-coated PROTON and NATAN for all tested heat flux densities. Time to reach 60 °C for PROTON fabric increased maximally from 11.23 s (without coating) to 13.13 s (Ti-Si coating) for heat flux density of 0.615 kW/m2 and for NATAN—maximally from 7.76 s (without coating) to 11.30 s (Ti-Si coating) for the same heat flux density.

Carbon-Based Coatings in Medical Textiles Surface Functionalisation: An Overview

“…Fireproof fabrics play a vital role in the life of fireguards; therefore, the search for a better high temperature barrier is routine. Ti-Si-N nanocomposite reflective coating was deposited by using magnetron sputtering improving the heat resistance in the NATAN ® fabric [46]. Also, aluminum and zirconium (IV) oxides were deposited on the Nomex ® fabric, basalt fabric, and cotton fabric with flame-retardant finishing using the magnetron sputtering method, in order to improve the thermal properties of textiles [47].…”

Experimental Investigation of the Tensile Behavior of Selected Tire Cords Using Novel Testing Equipment

“…Aramids in particular are selected from polyamides because of the aromatic groups appearing in their chains. Those fibers find a wide applications in a textile industry (for example textiles, such as Kevlar poly(phenylene-1,4-diamide) and Nomex poli (phenyle-1,3-diamide) [3], are used in fireman protective clothing [4,5]) as well as in military applications due to their high ballistic resistance [6,7].…”