Preparation and characterization of thermal-responsive non-woven poly (propylene) materials grafted with N-isopropylacrylamide/ β-cyclodextrin

Abstract

A temperature-sensitive hydrogel was successfully grafted on the surface of non-woven poly(propylene) materials. This was carried out by the application of unmodified b-cyclodextrin and N-isopropylacrylamide monomer in order to develop new functional hydrogels for textile science and technology. Graft polymerization technique was used to graft this temperature-sensitive hydrogel on the surface of plasma-treated nonwoven poly(propylene) materials. Fourier transform infrared attenuated total reflection, scanning electron microscopy and elemental analyses confirmed the presence of poly (N-isopropylacrylamide) and b-cyclodextrin components on the surface of the textile. Unmodified b-cyclodextrin content was estimated by the use of elemental analysis to be 97 mg/cm 2 . The water uptake measurements and differential scanning calorimetry analyses showed that the hydrogel maintained its temperature-sensitive property with a lower critical solution temperature (33.23 C) compared to a non-grafted hydrogel. The wicking time and contact angle measurements showed an improvement of the wicking ability and hydrophilicity of modified non-woven poly(propylene) materials.

Multifunctional materials with controllable superwettability for oil–water separation and removal of pollutants: Design, emerging applications, and challenges

“…As inspired by nature, the development of biomimetic materials with unique physicochemical features, biological characteristics, and stimuli‐response has made significant progress. [ 188 ] The stimuli‐responsive materials have unprecedented advantages in manufacturing highly controllable separation units, purifying complex wastewater, and reducing energy consumption. [ 189 ] At present, “smart” interfaces with the reversible transition of wettability have received much attention.…”

Novel Synthesis Pathways for PNIPAAm-Based Hydrogels and Their Application in Thermosensitive Textiles

“…15. Thermosensitivity of the functionalized fabrics deriving from PNIPAAm is not impeded neither by PU nor chitosan and the final VPTTs are around 33 C. Although a PNIPAAm-co-maleic anhydride-b-cyclodextrin hydrogel with pH and temperature sensitivity was synthesized by free-radical polymerization in an aqueous solution 10 years ago [5], the first compelling study on grafting of PNIPAAm hydrogel with and without unmodified b-cyclodextrin (b-CD) on nonwoven PP fabric was reported recently [59]. Developed thermosensitive textile is intended for hosting the guest molecules such as fragrances and antibacterial molecules owing to the specific cone-shaped molecule structure of b-CD with a hydrophobic interior cavity and a hydrophilic external surface.…”

A novel polyvinyl alcohol–tragacanth/nano silver hydrogel on polyester fabric through in situ synthesis method

“…Hydrophilic gels as hydrogel are cross-linked materials absorbing large quantities of water without dissolving. Softness, smartness, and the capacity to store water are some properties of hydrogels [1][2][3][4]. The ability of hydrogels to absorb water is due to the presence of chemical groups such as hydroxyl (-OH), carboxyl (-COOH), amide (-CONH-), primary amide (-CONH 2 ), sulfonic (-SO 3 H), and other hydrophilic groups that can be found within the polymer backbone or as lateral chains.…”