science
Study Tests Zinc Oxide Nanoparticles and Cold Plasma for UV-Protective Workwear Textiles
Researchers applied zinc oxide nanoparticles made by chemical and green methods to textiles, then used citric acid or cold plasma to improve adhesion. Ultraviolet protection factor and air permeability were measured before and after washing.
May 27, 8:00 PM·1m read1 source
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Zinc oxide nanoparticles were produced through chemical synthesis and green synthesis, then applied to fabric samples using a pad-dry-cure-pad process. Two adhesion approaches were tested: treatment with citric acid and exposure to cold plasma.
Ultraviolet protection factor values for untreated fabric measured 38.92. After citric acid treatment the values reached 322 for chemical nanoparticles and 566 for green nanoparticles. Cold plasma treatment produced higher readings of 341 and 658 respectively.
After five wash cycles, protection levels declined for all treated samples. Air permeability rose from 253 cubic feet per square foot per minute in untreated fabric to approximately 300 after nanoparticle application. Plasma-treated samples showed readings of 511.13 and 255.56.
The study concluded that green-synthesized nanoparticles combined with cold plasma yielded greater ultraviolet protection than chemical nanoparticles paired with citric acid. 1401.294.
