A salt-free, dyebath-recyclable nanoscale pigment dyeing technology for cotton fabrics based on the dispersed system of small cationic copolymer nanoparticles

Cui, Niuniu; Li, Jiawei; Xie, Ziwen; Yan, Xiaofei; Qi, Dongming

doi:10.1016/j.dyepig.2022.110914

Cited by 2 publications

(1 citation statement)

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“…Fortunately, waterborne dispersants can be applied without organic solvents, which has been favored by an increasing number of researchers. Ionic waterborne polymer dispersants, including amphiphilic [11] cationic , [12] and anionic [13] dispersants have been of particular interest. Typical forms of anionic waterborne polymer dispersants include polycarboxylates, [14] phosphates, [15] and sulfonates.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Utilization of a Comb‐Like Polycarboxylate Dispersant for Organic Pigment

Cao,

Cai,

Huang

et al. 2023

ChemistrySelect

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As a novel form of carboxylate comb‐like copolymers, SAM‐(m)PEG was prepared by polymerizing styrene (S), acrylic (A), and maleic anhydride (M) to obtain a random copolymer labeled SAM. SAM was then esterified using either polyethylene glycol (PEG) or methyl PEG (mPEG), a waterborne polymer dispersant for dispersing and stabilizing C.I. Pigment Yellow 180 (PY 180). The structures of SAM‐(m)PEG and the ground suspension of PY 180 were characterized by Fourier transform infrared (FT‐IR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, scanning electron microscopy (SEM), a nanoparticle size analysis, and viscometry. The effects of different branch chains, synthetic formulas, and grinding conditions on the dispersibility of SAM‐(m)PEG were evaluated. In addition, the optical properties of the pigments were investigated after ultrafine grinding. The adsorption mechanism between the SAM‐(m)PEG dispersants and PY 180 particles is also discussed. SAM‐PEG6002 outperformed the other SAM‐(m)PEG dispersants owing to its excellent dispersion and stability. When used as the dispersant, the average particle size (Z‐average) of PY 180 after grinding was 264.6 nm, and the particle size distribution became narrow (PDI=0.089). Moreover, SAM‐PEG6002 effectively maintained the color performance of the pigment, and the product was successfully applied to the pigment coating. Therefore, SAM‐PEG6002 is an effective waterborne polymer dispersant for organic pigments.

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