|Title||Development of nanotextured yarns, fabrics and foils for textile products with thermal and fire protection|
|Area||Engineering sciences and technologies: Textile and leather|
|Duration||7. 1. 2018 – 30. 6. 2021|
|Funding||200.000 EUR (ARRS) + 100.00 EUR (Tekstina d.o.o., Predilnica Litija, d.o.o., Kolektor d.o.o.)|
|Project head||Prof. Dr. Vanja Kokol https://cris.cobiss.net/ecris/si/sl/researcher/8756|
|Participating organizations||Predilnica Litija, d.o.o. https://www.litija.com https://cris.cobiss.net/ecris/si/en/organization/766
Tekstina d.o.o. https://cris.cobiss.net/ecris/si/en/organization/2732
R&D center for nanotechnologies in the field of magnetic materials and composites https://cris.cobiss.net/ecris/si/en/organization/3149
Kolektor group, vodenje in upravljanje d.o.o. https://www.kolektor.com/en/about-us/global-presence/kolektor-group
|Objectives||Fire and heat protection clothing are designed as a multi-layer construction with an outer fabric and an inner barrier lining to provides protection against combusting and high temperature as well as moisture and steam during exposure, respectively. The trend of such garments goes in the direction of lighter, environmentally friendly and human safe products, with the same, or even better, protection properties, as well as good thermo-physiological comfort (i.e. good heat and moisture management in contact with the skin, and breathability) to cool the body and reduce the heat by moisture build-up. This can be achieved by combination of different types of fibres, as well as the structural design of yarns and fabrics, along with different Fire Retardant / FR finishes or coatings applied on the outer fabric surface. However, the use of non-halogenated inorganics requires higher loading for an FR activity, which impacts on material’s physical and mechanical properties.
The AIM of this project was thus to develop prototypes (reaching TRL 6) of cellulose-based yarns and linings of higher thermal stability, low combustion heat release rate, and improved thermo-physiological comfort. This would be achieved by differently nanostructured Al or Mg hydroxide particles and their hybrids with phosphorylated or aminated nanocellulose / NC, being synthesised in-situ or imbedded within the NC matrix. It was expected that to provide, besides specific heat and optional fire protection properties (acting synergistically by different action mechanisms), also an improved strength / tenacity to yarns / lining, and high durability (without leaching during the products’ manufacturing, usage and laundering), thus enabling them to meet increasingly stringent environmental safety standards and regulations. Their structural deposition on a lining surface using a cellulose binder or a polymer adhesive and screen printing would preserve its breathability and durability. The FR hybrids would be integrated also within the yarn during the dry-spinning process. In addition, the impregnation of nanoparticles-functionalised intumescent polymeric foil on a fabric surface, would be developed to improve fabric’s chemical (higher temperature resistance) and physical (expansion ability) properties during the heat / fire exposure and give better wearing flexibility of such a fabric in use.
|Specific phases and stage of realization||Develop a procedure for preparation of inorganic particles, i.e. Al and Mg hydroxides, with modulated or specific heat-resistant properties by getting deeper understanding of the mechanism of their action.
Develop a procedure for preparation of (native or phosphorylated vs. aminated) NC with integrated inorganic particles (organic-inorganic hybrids) for modulated or specific heat and potentially FR-resistant performance, to trigger several modes of FR-actions.
Develop a procedure for durable, structural and thin deposition of NC and NC-hybrids on a viscose-based lining surface by screen printing technology to improve the lining’s heat-resistant properties, while simultaneously improving its strength/tenacityand thermo-physiological comfort (breathability, moisture management).
Develop a procedure for integration of NC and NC-hybrids into viscose fibers during their dry-spinning into yarns, to improve yarn’s strength and heat-resistant properties.
Develop a procedure for kneading and preparation of expandable foil with integrated nanoparticles, and its lamination on the fabric surface for passive fabric’s fire protection.
|Bibliographic references||Scientific conference contributions
KOKOL, Vanja. Screen-printing of micro/nano-fibrillated cellulose for an improved moisture management and abrasion resistant properties of flame-resistant (FR) fabric. In: International Conference on Cellulose Fibres 2022: 2 – 3 February 2022, hybrid event, Cologne (Germany). p 1 https://cellulose-fibres.eu/poster-session/, https://cellulose-fibres.eu/.
KOLAR, Tjaša, KOKOL, Vanja. Synergistic effect of screen-printed Al(OH)3/SWCNT nanoparticles and phosphorylated CNF on thermal and thermophysiological comfort properties of FR-fabric. In: Book of abstracts: the 7th International Symposium Technical Textiles – Present and Future: Iaşi, Romania: online on November 12th, 2021. Iasi: “Gheorghe Asachi” Technical University: Faculty of Industrial Design and Business Management (DIMA), Department of Engineering and Design of Textile Products, 2021. p 37. https://ttpf.ro/wp-content/uploads/2021/11/TTPF2021_Book-of-Abstracts.pdf.
KOLAR, Tjaša, KOKOL, Vanja. Screen-printing of mineral nanoparticles and phosphorylated nanocellulose for an improved thermal and moisture management properties of flame-retardant textile. In: Unfolding the future : book of abstracts. 20th World Textile Conference AUTEX 2021, 5 – 9 September 2021, Guimarães, Portugal, online. Guimarães: University of Minho, 2C2T – Centre of Textile Science and Technology, 2021. p 72-73. https://drive.google.com/file/d/1jajm97EiNZa-46NKKjY09ooCTVd57XzC/view
KOKOL, Vanja, VIVOD, Vera, KOLAR, Matjaž. Antimicrobially-active viscoseyarns ring-spun with integrated amino-functionalized nanocellulose. In: FANGUEIRO, Raul (ed.). Book of abstracts: ICNF 2021: 5th International Conference on Natural Fibers, Materials of the future, 17. 18. 19 May 2021, Online, Portugal. p 329-330.
KOKOL, Vanja, VIVOD, Vera, DOBNIK-DUBROVSKI, Polona. Screen-printing of microfibrillated cellulose for an improved moisture management, strength and abrasion resistant properties of flame-resistant fabric. In: FANGUEIRO, Raul (ed.). Book of abstracts: ICNF 2021 : 5th International Conference on Natural Fibers, Materials of the future, 17. 18. 19 May 2021, Online, Portugal. p 25-27.
KOLAR, Tjaša, KOKOL, Vanja. Mechanical, thermo-physiological and moisture management properties of flame-retardant textile screen-printed with Al(OH)3 and cellulose nanofibrils. In: NAGODE, Klara (ed.), et al. Throughout knowledge towards a green new world: 13th Jožef Stefan International Postgraduate School Students’ Conference and 15th Young Researchers’ Day of Chemistry, material science, biochemistry and environment, (CMBE day), 27th-28th May 2021, online: book of abstracts. Ljubljana: Jožef Stefan International Postgraduate School, 2021. p 95-96. http://ipssc.mps.si/bookOfAbstracts/Book_of_abstracts_v04.pdf.
KOLAR, Tjaša, KOKOL, Vanja. Thermo-physiological and mechanical properties of textile, screen-printed with SWCNT-based printing pastes. In: COST Action CA15107 MultiComp, Multi-functional Nano-Carbon Composite Materials Network: Final Multicomp Meeting 2020, 24th – 25th September, 2020 Slovenj Gradec, Slovenia: Faculty of Polymer Technology, p 23. https://www.ftpo.eu/Portals/0/Multicomp_Book_of_Abstracts-SG-2020.pdf.
KOLAR, Tjaša, MUŠIČ, Branka, KOKOL, Vanja. Structural, thermal, optical and mechanical properties of nanocellulose / ATH hybrid films. In: KARLOVITS, Igor (ed.). Proceedings of the 1st International Conference on Circular Packaging, Ljubljana, 26th and 27th September 2019. Ljubljana: Pulp and Paper Institute; Slovenj Gradec: Faculty of Polymer Technology, 2019. p 37-39. DOI: 10.5281/zenodo.3416458.