Fire Performance of Cotton Fabrics Coated with 10-(2,5-Dihydroxyphenyl)-9,10-dihydro-9-xa-10-phosphaphenanthrene-10-oxide (DOPO-HQ) Zr-Based Metal-Organic Frameworks

Qiuyue Wu; Manuel José Lis; Juan P Hinestroza

doi:10.3390/polym15224379

Fire Performance of Cotton Fabrics Coated with 10-(2,5-Dihydroxyphenyl)-9,10-dihydro-9-xa-10-phosphaphenanthrene-10-oxide (DOPO-HQ) Zr-Based Metal-Organic Frameworks

Polymers (Basel). 2023 Nov 10;15(22):4379. doi: 10.3390/polym15224379.

Authors

Qiuyue Wu¹, Manuel José Lis², Juan P Hinestroza³

Affiliations

¹ Institute of Textile Research and Industrial Cooperation of Terrassa (INTEXTER), Polytechnic University of Catalonia, Colón 15, 08222 Barcelona, Spain.
² Department of Chemical Engineering, Polytechnic University of Catalonia, Colón 15, 08222 Barcelona, Spain.
³ Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853, USA.

Abstract

We investigated the performance of cotton fabrics coated with DOPO-HQ and Zr-based Metal-organic Frameworks when exposed to fire. The chemical structure of the cotton fabrics before and after the coating was characterized using FTIR spectroscopy, and the surface morphology of cotton and their combustion residues was probed via scanning electron microscopy. In our experiments, we used flammability tests and thermogravimetric methods to understand the burning behavior of the coated fibers, as well as their thermal stability. The cotton fabrics coated with DOPO-HQ and Zr MOFs exhibited shorter combustion times, had better thermal degradation properties, promoted the creation of heat-insulating layers, and exhibited improved smoke suppression behavior.

Keywords: DOPO-HQ; Zr-based metal–organic frameworks; cotton fabric; fire protection.

Grants and funding

This research received no external funding.