Application of DMEU/SiO₂ gel solution in the antiwrinkle finishing of cotton fabrics

Abstract

ABSTRACT:In this experiment, cotton fabrics were treated by padding, drying, and curing with an antiwrinkle finishing reagent, dimethylolethylene urea (DMEU), in combination with different concentrations of tetraethoxysilane (TEOS) and isopropanol (IPA) at various volumes. The treated fabrics were studied to determine the effects of adding TEOS and IPA. They were also analyzed using Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) methods to examine the binding between SiO 2 and DMEU. The results showed that hydrogen bonds formed between SiO 2 and DMEU. TEOS was found to improve the antiwrinkle properties, tensile strength retention, and yellowing of the treated fabrics, although their softness was slightly reduced. The solvent IPA was shown to decrease the tensile strength of treated fabrics, although it improved their antiwrinkle properties. We observed only one stage of pyrolysis in untreated cotton fabrics, whereas the treated fabrics showed two stages. In addition, the fabrics treated with TEOS showed improved heat resistance. Our findings demonstrated that cotton fabrics showed excellent antiwrinkle properties and high tensile strength, when treated with a finishing solution composed of DMEU, 3% TEOS, IPA and water, followed by predrying and curing.

Effect of silica nanoparticles and BTCA on physical properties of cotton fabrics

“…The bond formation can improve the crease resistance property of the cotton fabrics. The crease recovery finishing process with DMEU, tetraethoxysilane (TEOS) and isoproponal at various volumes improved the crease resistance and tensile strength 23 .…”

“…In most of the techniques to synthesis the nano silica, the base material is taken from the chemically available precursors such as tetraethoxysilane (TEOS) by sol-gel method 23 . But in the case of thermal degradation, the source material taken from natural resource such as rice hulls is the simplest and cost effective method for large scale production of silica nano particles 24 .…”

Phosphorus-Silica Sol-Gel Hybrid Coatings for Flame Retardant Cotton Fabrics

“…Th e sol-gel precursor (DPTS) was purchased from Gelest and used as received; 3-aminopropyltriethoxysilane (APTES, purity grade 95%), 1-hydroxyethane 1,1-diphosphonic acid (P; 60% aqueous solution), melamine (M, 99%), urea (U, 99%), dibutyl tindiacetate (DBTA, condensation catalyst), hydrochloric acid, sodium hydroxide and ethanol were purchased from SigmaAldrich. N,N,Nʹ,Nʹ,Nʹʹ,Nʹʹ-hexakis-methoxymethyl- [1,3,5] triazine-2,4,6-triamine (MF) in aqueous solution (50 w/v%) was a commercial product supplied by Europizzi S.p.A. (Italy). All the chemicals were used without any further purifi cation.…”

“…Th ese coatings are capable to protect the polymer surface by creating a physical barrier, thus improving some specifi c properties, such as for example water or oil repellence and wear resistance [2]. As far as textile applications are considered, usually the sol-gel technique has been proposed for conferring new functional properties to fabrics, such as antimicrobial or UV radiation protection [3], dye fastness [4], anti-wrinkle fi nish [5] and hydrophobicity [6]. With the goal of improving fl ame resistance of fabrics, in the last years, textile fi nishing by sol-gel method has been systematically studied [7][8][9][10][11][12][13].…”

Sol-Gel Applications in Textile Finishing Processes

“…The use of sol-gel technology in textile industry for flame retardancy, antimosquito [3], water or oil repellency [4], antibacterial activity [5], antiwrinkle, anticrease, durable press or easy-care effect [6], ultraviolet (UV) protection, self-cleaning or soil repellency, photocatalytic activity [7], development in fastness behavior, abrasion resistance, tensile and thermal properties, and in microencapsulation process have been studied in detail. In Figure 3, the application areas of sol-gel technology in textile finishing processes have been demonstrated.…”