No abstract

No abstract

No abstract

Far infrared radiation (FIR) is emitted by every body at a given temperature, including the human body. FIR ranging between 4–14 μm is considered useful for cell growth, and the human body emits a maximum of infrared (IR) radiation at the wavelength of approximately 9.3 µm. In the present study, fabrics based on five different raw textiles having the same yarn count as well as the same weaving patterns were designed and created. Some of them were subjected to a coating process. The fabrics to be tested were as follows: coated with TiO2 nanoparticles, coated with SiO2 nanoparticles, coated fabric that does not contain bioceramic nanoparticle (BNFC), and non-coated fabrics (NCF). The structural characterization of the resulting samples was performed using scanning electron microscopy (SEM), abrasion tests, and air permeability. Following the structural characterization, the infrared emissivity properties were investigated using infrared thermography as well as attenuated total reflectance Fourier-transform infrared spectroscopy in the 8–14 IR range. According to the experimental findings, the fabrics coated with TiO2 and SiO2 displayed increased infrared emissivity values compared to the uncoated ones. In addition, it was observed that the use of bioceramic powders had no effect on air permeability and abrasion properties.

Today, felt and woven fabrics are used as a reinforcement material in textile composite structures. In these structures glass and carbon fibres are the widely used ones. However for almost a decade, researchers have also shown some interest on natural fibre reinforced composites. In this study, it has been aimed to use wool waste fabric to be able to produce a lightweight composite material. For this purpose, the composite samples were produced by using wool fabrics in warp direction together with their waste blends as a reinforced material. The produced reinforced wool composite structures were then tested for both their mechanical properties, i.e. Izod impact and tensile strength tests, and for their thermal properties. The fracture surfaces of the samples were also inspected on the scanning electron microscope. According to the results, it has been evaluated that wool fabrics and their waste may be used as a reinforcement material for the application of textile composites presenting in lightweight structures for the construction industry. The wool waste fabric reinforced composites' mechanical properties can be improved by studying various waste percentages in future studies to gain better mechanical properties. The thermal conductivity of the composites was increased as the waste increases within the structure. As a result, wool waste materials can as well be used for future recycled textile materials in lightweight reinforced composites.