Layer-by-Layer Assembly of Polyelectrolyte Multilayer onto PET Fabric for Highly Tunable Dyeing with Water Soluble Dyestuffs

Abstract

Poly(ethyleneterephthalate) (PET) is a multi-purpose and widely used synthetic polymer in many industrial fields because of its remarkable advantages such as low cost, light weight, high toughness and resistance to chemicals, and high abrasion resistance. However, PET suffers from poor dyeability due to its non-polar nature, benzene ring structure as well as high crystallinity. In this study, PET fabrics were firstly treated with an alkaline solution to produce carboxylic acid functional groups on the surface of the PET fabric, and then was modified by polyelectrolyte polymer through the electrostatic layer-by-layer self-assembly technology. The polyelectrolyte multilayer-deposited PET fabric was characterized using scanning electron microscopy SEM, contact angle, Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS). The dyeability of PET fabrics before and after surface modification was systematically investigated. It showed that the dye-uptake of the polyelectrolyte multilayer-deposited PET fabric has been enhanced compared to that of the pristine PET fabric. In addition, its dyeability is strongly dependent on the surface property of the polyelectrolyte multilayer-deposited PET fabric and the properties of dyestuffs.

One-Bath Pretreatment for Enhancing the Color Yield and Anti-Static Properties of Inkjet Printed Polyester Using Disperse Inks

“…As seen from wide-scan XPS spectra (Figure 6f), it can be seen almost the same that element C1s (at 283.5 eV) and O1s (at 530.8 eV) were detected on the fiber surface of the three samples. High-resolution C1s XPS analysis that functional groups were same which the element C1s of three samples correspond to characteristics of C–C/C–H (at 284.0 eV), C–O (at 286.0 eV), and O–C=O (at 288.5 eV), respectively (Figure 6g–i) [30,31]. It can be indicated that the cross-linking agent of PETA can be initiated by ammonium persulfate (APS) at proper temperature.…”

Enhancement of Colour Effects of Dyed-Yarn Mixed Fabrics Using Cramming Motion and Finer Polyester Yarns

“…To characterize the fabric color attributes, the color of the produced fabrics was measured and quantified using the 7000A spectrophotometer (X-Rite, Incorporated, MI, USA) [22,23]. The colorimetric data expressed by CIE L*, a*, b*, C*, H° values, which represents lightness, red-green component, blue-yellow component, chroma, and hue, respectively.…”

Hollow Reticular Shaped Highly Ordered Rice Husk Carbon for the Simultaneous Determination of Dopamine and Uric Acid

“…The deconvoluted spectra are shown in Figures S2b, S2c, and S2d. Peak fitting for C1s resulted in two peaks for CÀ C group (at 283.4 eV) and CÀ O group (at 285.1 eV), respectively [32]. The fitting of other two peaks O1s, and N1s resulted in one deconvoluted peak for each core level spectrum which can be assigned as phenolic CÀ OH group (at 531.6 eV), and pyridinic CÀ N group (at 399 eV), respectively [32,33].…”

“…Peak fitting for C1s resulted in two peaks for CÀ C group (at 283.4 eV) and CÀ O group (at 285.1 eV), respectively [32]. The fitting of other two peaks O1s, and N1s resulted in one deconvoluted peak for each core level spectrum which can be assigned as phenolic CÀ OH group (at 531.6 eV), and pyridinic CÀ N group (at 399 eV), respectively [32,33]. These functional groups help towards increasing wettability of the material in solution, facile electrostatic, Van der Waals, and hydrogen bonding interactions with analytes from the solution.…”