Study on textile assemblies with aluminized basalt fabrics destined for protective gloves

Abstract

Purpose – The purpose of this paper is to check an applicability of aluminized basalt fabrics for production of gloves protecting simultaneously against thermal and mechanical factors. Design/methodology/approach – Six variants of protective gloves were manufactured using two different glove constructions: more simple and cheaper with the anatomical thumb arrangement (model A), and more ergonomic one with so called “distance gussets” (model B). Aluminized basalt fabrics were contained in the back side of all variants and in only one variant of palm side. Then the protective properties against thermal and mechanical factors were measured according to the up-to-date standards. Findings – The fulfillment of contact heat requirement was achieved for all glove variants at 100°C. Application of aluminized basalt fabrics in the glove back side allowed obtaining the fourth performance level in the case of resistance to small metal splashes and assuring the highest protection against the radiant heat and small metal splashes. Fulfillment of standard requirements for all examined mechanical parameters was achieved and significantly higher values than reqired for the highest performance level were registered. Research limitations/implications – The further research including upscalling strategy as well as industrial conditions requirements should be taking into account for basalt textiles development. Moreover functionalization of basalt yarns and fabrics seems to be promising feature. Practical implications – The preliminary utility trials were done and registered results are very promising, shows that this kind of gloves will be cheaper than produced so far and could be used in the glass, welder companies. Social implications – The basalt textiles applied for protective gloves or other personal protective equipment can ensure safety at work for end users operating in mechanical and thermal risk scenarios. Originality/value – Up till now the basalt fabrics have not been recognized as a material for the personal protective equipment, they were used mostly for technical purposes.

Study on Some Thermal and Electrical Properties of Basalt Fabric Modified with Metal and Ceramics as a Result of Magnetron Sputtering

“…From the measurements and geometric dimensions of the material sample and electrodes, the surface resistivity of the material can be calculated. The Keithley Electrometer/High Resistance Meter (Beaverton, OR, USA), Model 6517A, 5 1 2 digit resolution, was used for this purpose. The model can do surface resistivity measurements from 10 3 to 10 17 Ω.…”

“…Modern solutions appearing in the textile industry are mainly intended to provide the user with the comfort and functionality of the product under specific environmental conditions. To prevent various types of hazards in a hot microclimate environment, specialist clothes are required, particularly protective gloves [1][2][3]. The protective gloves should meet the basic standard [4].…”

“…None of the selected basalt fabrics intended for gloves protecting against the effects of hot factors showed resistance to contact heat for the contact temperature of 250 • C. In the case of heat-resistance tests, the highest (fourth) efficiency level was obtained for all samples of aluminized basalt fabrics. One of the disadvantages of the produced aluminized basalt fabric was the abrasion and cracking of applied coating [1,12], which led to a loss of protective properties and durability of gloves. Due to the above-described negative aspects of the conducted research, this work concerns the modification of basalt fabric in a different way (without) gluing the aluminum foil, but by putting chrome or zirconium (IV) oxide directly on the fabric surface.In order to modify the basalt fabric surface, one of the PVD (physical vapor deposition) processes was applied: magnetron sputtering.…”

Modification of Surface of Basalt Fabric on Protecting Against High Temperatures by the Method of Magnetron Sputtering

“…Due to the planned application of the modified basalt fabrics in the palm part of the protective glove, the main task of our research is to improve their resistance to when they come in contact with heat and ensure that after cracking, basalt fibers do not cause the skin irritation. [4][5][6] Our research continues on the optimization of the construction of protective gloves, with the use of new materials and modern technologies, which can ensure high strength and good barrier properties of the final product. [3] In order to improve thermal properties, and above of all, the resistance to contact heat, microstructural coatings were deposited on the surface of the basalt fabric.…”

“…Therefore, the next step will be the deposition on the surface of basalt fabric a layer of zirconium oxide with a much larger thickness of approximately 10 μm. 4. Kevlar fabric used in the construction of the palm part of gloves protecting against high temperatures demonstrates similar resistance to contact heat as the chromium-modified basalt fabric ay contact temperature of 250 0 C; however, the Kevlar fabric selected for testing is characterized by much lower thickness.…”