Passive Daytime Cooling Cotton Fabric with Adaptive Comfort Features
3rd International Congress of Innovative Textiles, ICONTEX2022, Tekirdağ, Türkiye, 18 - 19 Mayıs 2022, ss.430-437, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: Tekirdağ
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.430-437
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
Passive daytime radiative cooling materials have attracted increasing attention due to their
great potential for energy saving and the possibility to meet the need for smart clothes.
However, the practical application of passive daytime cooling material in the textile industry
is greatly affected by comfort components and also physical/mechanical properties that require
optimization. Herein, it was aimed to develop a thermoregulating fabric using zinc oxide
nanoparticles (ZnO), which provide dynamic and passive control of the infrared transmission,
by adapting to the ambient temperature. For this aim, the cotton fabric was coated with a
nanocomposite treatment composed of ZnO nanoparticles and temperature-responsive shape
memory polyurethane (SMPU) matrix, obtaining strong scattering effects to control the
wideband transmission of thermal radiation and also adaptive comfort features based on shape
memory function. By reflecting sunlight of SMPU-ZnO nanocomposite coating, the cotton
fabric can reach an average temperature drop of ∼ 2.2°C and 0.4°C compared to the raw ones
under direct sunlight and also indoor at 40°C, respectively. Also, SMPU and SMPU-ZnO
nanocomposite coated cotton fabric exhibited dynamic air and water vapour permeability hence
adaptive comfort features. Owing to passive cooling and also adaptive comfort features besides
the simple production process, this smart fabric is promising to be widely used in sports or
protective clothing areas.