Study on polyester fabric grafted with acrylic acid initiated by ultraviolet light

Xin-Cheng, Xie; Xiao-Jing, Yi; Wen, Huang; Zuo-Shen, Li; Ling, Xinlong

doi:10.1088/1742-6596/2009/1/012019

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…Firstly, PET‐0 contains fewer hydrophilic groups. The PET fibers have higher crystallinity, less amorphous zone resulting in hydrophobicity 13 . Secondly, the PAM hydrogels contain hydrophilic groups, which give them a certain hydrophilicity.…”

Section: Resultsmentioning

confidence: 99%

“…The PET fibers have higher crystallinity, less amorphous zone resulting in hydrophobicity. 13 Secondly, the PAM hydrogels contain hydrophilic groups, which give them a certain hydrophilicity. The modified PET fibers have been grafted with PAM hydrogels on the surface, which F I G U R E 2 Infrared spectra of PET before and after modification (attenuated total reflectance-fourier-transform infrared spectra of PET-0, PET-1, PET-2n, and PET-2).…”

Section: Hydrophilic-hydrophobic Propertiesmentioning

confidence: 99%

“…11 Dai et al 12 were successful in reducing drag of PET fabrics by UV-grafted with PAA hydrogels. Cheng et al 13 grafting acrylic acid on the surface of PET fibers to obtain better hydrophilic properties under the action of UV light. Montoya-Villegas et al 14 grafted poly (2-hydroxyethyl methacrylate) (PHEMA) and poly (2-hydroxyethyl methacrylate-polyethylene glycol-poly(ethylene glycol)-methacrylate) hydrophilic gels onto PET fabrics by UV-irradiation.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of polyester fibers with polyacrylamide hydrogel grafted by UV‐irradiation

Zhang,

Qiang,

et al. 2023

Polymer Engineering & Sci

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It is widely recognized that polyester (PET) fibers with swelling properties are necessary for advanced applications of PET fibers in waterproof fabrics. This study presented the UV‐initiated methods to graft polyacrylamide (PAM) hydrogel on the surface of PET fibers. In the one‐step method, PET fibers are impregnated with a mixed solution of the photoinitiator benzophenone (BP) and the monomer acrylalkylamine (AM). Then, the PET fiber was directly exposed to UV light. In the two‐step method, PET fibers were first impregnated with a photoinitiator solution to generate BP radicals. Then, the fibers impregnated with a monomer solution before being grafted by UV light. Both two methods ultimately achieve PAM gelation‐modified PET fibers. The chemical composition and surface structure were detected by Fourier transform infrared spectroscopy and scanning electron microscope. The findings demonstrate that the PAM hydrogel was successfully grafted on the PET fibers through one‐step method or a two‐step method. In addition, the properties of the grafted PET fibers were evaluated by grafting yield, contact angle, and swelling test. The study indicated that the modified PET fibers via a two‐step method exhibited a superior grafting yield up to 29.3% (PET‐2n) and 54% (PET‐2) compared to the one‐step technique (PET‐1). It was shown that the grafting efficacy of PET fibers modified by two‐step method is better than one‐step method. The static contact angles of PET fibers by UV‐Induced were all reduced. For instance, the contact angles of PET‐2n were decreased from 115° to 62.9°; and the two‐step modified PET fiber after acetone cleaning (PET‐2) decreased from 115° to 60°. It was suggested that the hydrophilicity of the modified PET fibers significantly increased. In addition, the research shows that the gelation‐modified fibers were all possessed swelling properties.

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Section: Resultsmentioning

confidence: 99%

Section: Hydrophilic-hydrophobic Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of polyester fibers with polyacrylamide hydrogel grafted by UV‐irradiation

Zhang,

Qiang,

et al. 2023

Polymer Engineering & Sci

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Deep eutectic solvent as an additive to improve enzymatic hydrolysis of polyethylene terephthalate (PET)

Zheng,

Feng,

et al. 2024

Preprint

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In recent years, the research topic of hydrolysis of polyethylene terephthalate (PET) using bioenzymes has attracted a lot of attention and can be divided into two parts: enzymatic surface modification of polyester fibres and biodegradation of PET waste. The high crystallinity of polyester fibres makes the enzyme surface modification study very challenging compared to PET waste. Deep eutectic solvents (DES) can create a favourable environment for proteins and represent a new generation of biodegradable solvents. However, there are few studies on the use of DES to enhance enzymatic degradation. For these reasons, we attempted to hydrolyse PET with DES-activated enzymes to increase the hydrolysis yield and thus improve PET modification. We investigated the effects of DES type, molar ratio and concentration on enzymatic hydrolysis, utilizing betaine and choline chloride as hydrogen bond acceptors and polyol as a hydrogen bond donor. Humicola insolens cutinase (HiC) is used as the main biocatalyst for PET fabric hydrolysis. The results showed that a low concentration (20% v/v) of deep eutectic solvents (DES) (betaine:sorbitol; 1:2 molar ratio) induced a significant increase in hydrolysis yield (more than 1.5 times). The boosting effect primarily resulted from the benefits of DES itself rather than from the superimposition of individual components. Further studies revealed that HiCexhibited high relative enzyme activity and stability at low concentrations of DES. In addition, spectral analyses showed that DES effectively preserved the structure of HiC. Our work sheds light on the development of efficient and sustainable method to improve HiC hydrolysis of PET fabric, opening up new opportunities and possibilities for comprehensive utilization of DES in bio-modification of PET fabric.

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Moisture and Surface Properties of Radically Photo-Grafted Poly-(Ethylene Terephthalate) Woven Fabric

Bongiovanni,

Guan,

Ferri

et al. 2024

Fibers

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This study aims at the modification of the surface properties of twill-5 polyethylene terephthalate (PET) fabric, in particular to improve its hydrophilicity. It compares the hydrophilic potential and efficacy of two vinyl monomers radically grafted onto the fabric by photoinduced processes. Poly(ethylene glycol) diacrylate (PEGDA) and [2-(methacryloyloxy)-ethyl]-trimethylammonium chloride (METAC) affected the wettability of the fabric towards water, significantly reducing the water contact angle (WCA). As a consequence, the treated fabrics showed a good improvement of dynamic moisture management. Adopting specific conditions (e.g., type of monomer and grafting monomer concentration), the grafted PET fabrics remained hydrophilic after washing, laudering, dry cleaning, and rubbing tests; thus, the surface treatment modification resulted to be durable overall.

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Study on polyester fabric grafted with acrylic acid initiated by ultraviolet light

Cited by 3 publications

References 5 publications

Preparation and properties of polyester fibers with polyacrylamide hydrogel grafted by UV‐irradiation

Preparation and properties of polyester fibers with polyacrylamide hydrogel grafted by UV‐irradiation

Deep eutectic solvent as an additive to improve enzymatic hydrolysis of polyethylene terephthalate (PET)

Moisture and Surface Properties of Radically Photo-Grafted Poly-(Ethylene Terephthalate) Woven Fabric

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