Polymer composites containing natural fibers are receiving growing attention as possible alternatives for composites containing synthetic fibers. The use of biodegradable matrices obtained from renewable sources in replacement for synthetic ones is also increasing. However, only limited information is available about the creep behavior of the obtained composites. In this work, the tensile creep...

forty sheep skins were allocated into two groups. group one was sheared using shearing machine and group two was chemically dewooled using 15 percent sodium sulfide. results indicated that fibre diameter of slipewool (39.3 ± 2.3 µm) was significantly (p< 0.05) higher than the sheared wool fibers (36.3 ± 0.7 µm), but staple length of slipewool (3.3 ± 0.7 cm) was significantly (p< 0.05) lower tha...

A successful photodynamic therapy (PDT) requires a specific photosensitizer, oxygen and light of a specific wavelength and power. Today photodynamic therapy (PDT) is administered to patients with light-emitting diode (LED) panels. These panels deliver a non-uniform light distribution on the human body parts, as the complex human anatomy is not a flat surface (head vertex, hand, shoulder, etc.)....

This paper deals with the development of a numerical simulation methodology for estimating damages in laminate composite materials caused by a low-speed impact. Experimental tests were performed on laminate plates reinforced with woven carbon fibers and epoxy resin. Three thickness plates were evaluated. The impact loads were transversal and punctual. Two lamina failure criteria were evaluated....

Fluorescence has been identified as an advantageous feature in smart fabrics, notably for the protection of humans during outdoor athletic activities, well preventing counterfeiting and determining authenticity. fabrics is achieved using dendrimers, rare earth metal compounds, fluorescent dye. The principal method producing to immerse sample a solution containing agents. However, covalent conne...

Kynol fibers are excellent flame-retardant materials used for manifold applications. These exhibit originally an orange coloration. Up to now, dyeing processes less reported, and the functionalization of these by finishing is investigated. With this background, main aim paper evaluation different fiber – a woven fabric non-woven material. The following types dyestuff evaluated direct dyes, vat ...

The reflectance of fabric surface is commonly represented by a 4D bidirectional reflectance distribution function (BRDF). To generate the BRDF from measured data by a gonioreflectometer with 2 degrees of freedom of the light source and 2 degrees of freedom of the observing direction, it requires an enormous amount of measurements. In this paper, we propose an efficient image-based method for re...

Worldwide, 45 million tons of waste cotton textiles are produced annually, which 75% is burned and buried, leading to serious environmental pollution. In this study, a method for directly preparing colored regenerated cellulose fibers (CRCFs) from dyed textile (DCTW) was demonstrated. The tensile strength CRCFs reached 226 MPa, equivalent that commercial viscose fibers. exhibited excellent colo...