Využití plazmochemických metod přípravy nanopovlaků k hydrofobní a oleofobní úpravě textilních materiálů pro filtrační ochranný oděv
| Title in English | APPLICATION OF METHODS OF PREPARATION OF PLASMO-CHEMICAL NANOCOATINGS DESIGNATED TO HYDROPHOBIC AND OLEOPHOBIC CORRECTION OF SURFACE WORKING OF TEXTILE MATERIALS FOR FILTRATION PROTECTIVE SUIT |
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| Authors | |
| Year of publication | 2014 |
| Type | Article in Proceedings |
| Conference | Sborník HazmatProtect 2014 |
| MU Faculty or unit | |
| Citation | |
| Field | Military subjects |
| Keywords | Hydrophobic modification, oleo phobic modification, chemical warfare agents, chemical resistance, harmful substance, nanocoatings, effect of lotos flower |
| Description | The possibility of creation of nanocoatings with hydrophobic or oleo phobic properties on textiles materials designated for protective suits with plasma-chemical procedures with the employment pf atmospheric plasma without vacuum has been verified. On four samples of selected textile materials without any additional modification (Ba, PES+Ba, PES+Ba+Nomex, 11 Ba+Nomex) has been at the Masaryk´s University (MU) in Brno applied with a plasma nozzle with ten defferent ways nanocoatings based on siloxane (HMDSO, OMCTS) and nanoglass. Prepared samples have been assessed at the MU in Brno even from the behavior against freely lying drops of the sulfur mustard point of view. At the Military Technical Institute of Protection (VTUO) some selected samples have been subsequently evaluated even from the behavior of freely lying drops of sulfur mustard. Supposed behavior of the Chemical Warfare Agent (CWA) of the VX type, sulfur mustard and Soman have been simulated within selected samples with observation of freely lying drops of the olive oil, nitrobenzene, and propanol with similar values of the surface tension as above mentioned CWA. Founded values of contact angles have been compared with contacts values of contacts angles founded in the scope of two developed materials of the coating textiles for modernized filtration protective garment with classical hydrophobic or oleo phobic modification which have been provided with the company of B.O.I.S. – Filtry, Ltd. Within all samples the change of contact angles in time and also the homogeneity of the modification have been considered. The stability and mechanical sustainability of applied sets against washing has not been evaluated. It has been proved that with the help of plasma-chemical modification is possible to prepare nanocoatings even with ultra hydrophobic (the contact angle for water is bigger than 150 °) and super oleo phobic (the contact angle for water is bigger than 136 °) properties on suitable textile materials. The best results, so called the effect of a lotus flower, have been reached mainly within two samples of textile materials contented a part of nomex fibes. |
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