INVESTIGADORES
BARBOSA silvia Elena
artículos
Título:
Hydrophilic cloth by surface modification of polypropylene fabrics with mineral particles
Autor/es:
CASTILLO, LUCIANA A.; LESCANO, LETICIA; MARFIL, SILVINA; BARBOSA, SILVIA E.
Revista:
POLYMER ENGINEERING AND SCIENCE
Editorial:
JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2022
ISSN:
0032-3888
Resumen:
Different surface modifications of polypropylene non-woven fabric (NWF) byusing mineral particles are proposed to increase fabric hydrophilicity. Particlesfrom a zeolitized vitreous breccia are selected as an economic mineral havinghigh water absorption capacity. The efficacy of each methodology concerningparticle inclusion on and within NWF is studied with different techniques.Scanning electron microscopy and X-ray diffraction are used to analyze particlepresence and coverage. Particle concentration on modified-NWF is determinedby using thermogravimetric analysis. The selection of the surfacemodification methodology is done considering the particle inclusion efficacyand its scalability to be directly used during NWF fabrication. Particle inclusionon the heat softened NWF followed by the removal of non-adhered particlesis chosen as the selected surface modification methodology to increaseNWF hydrophilicity. To guarantee the no-particle detachment during the useof modified-NMF, specific assays are performed simulating extreme conditionssuch handling under water. After these assays, modified-NWFs have a minimumwater absorption capacity of 5.8 g/cm2. It means that 0.25 m2 of modified-NWF has at least similar absorption capacity than 5 g of silica gel. Thesemodified-NWFs, obtained from an easy process during NWF fabrication, favorthe beneficiation of the raw zeolitized vitreous breccia, leading to a new hydrophiliccloth.