Preparation of High-Performance Polyethersulfone/Cellulose Nanocrystal Nanocomposite Fibers via Dry-Jet Wet Spinning

Son, Sung Min; Lee, Jung-Eun; Jeon, Joonho; Lim, Sung In; Kwon, Hyuk Taek; Eom, Youngho; Chae, Han Gi

doi:10.1007/s13233-021-9001-z

Cited by 11 publications

(5 citation statements)

References 39 publications

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“…The properties of CNCs within isotropic nanocomposite films were intensively studied, where the mechanical properties of the nanocomposite materials were shown to improve through the formation of a percolation network. − Anisotropic CNC nanocomposites with potentially superior mechanical properties induced by the unidirectional alignment of the CNCs have, however, been less investigated. Oriented CNCs have previously been obtained through solvent casting in a magnetic field, shear-solvent casting, , or fiber spinning. − ,− While CNC/polymer nanocomposite fibers can be produced by various fiber-spinning procedures including wet spinning, dry spinning, electrospinning, or melt spinning, ,,, melt spinning is of particular interest since it is a solvent-free process and thus is ecologically friendlier than the aforementioned spinning procedures. Melt processing of CNCs with various polymeric matrices was previously achieved with cellulose acetate butyrate, poly(oxyethylene), polyamide, polycarbonate, polyethylene, ,, poly(lactic acid), ,,− polystyrene, poly(vinyl acetate), and different PUs. − ,, However, the melt spinning of CNC/polymer nanocomposite fibers has been challenging due to the reduced elasticity of the materials upon CNC addition and their low thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Comparing Percolation and Alignment of Cellulose Nanocrystals for the Reinforcement of Polyurethane Nanocomposites

Redondo

Mortensen

Djeghdi

et al. 2022

ACS Appl. Mater. Interfaces

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The reinforcement of polymer nanocomposites can be achieved through alignment or percolation of cellulose nanocrystals (CNCs). Here, we compare the efficacy of these reinforcement mechanisms in thermoplastic polyurethane (PU) elastomer nanocomposites containing thermally stable cotton CNCs. CNC alignment was achieved by melt spinning nanocomposite fibers, while a percolating CNC network was generated by solvent casting nanocomposite films with CNC contents up to 20 wt %. While in films both the CNCs and the PU matrix were entirely isotropic at all concentrations as confirmed by wide-angle X-ray scattering and birefringence analysis, the CNCs in the fibers exhibited a preferential orientation, which improved with increasing CNC concentration. Increasing the CNC concentration in the fibers reduces, however, the alignment of the PU chains, resulting in an entirely isotropic PU matrix at high CNC contents. The mechanical properties of films and fibers were evaluated using stress− strain measurements. Nanocomposite fibers with low CNC content exhibited superior stiffness, extensibility, and strength compared to the films, while the films displayed superior mechanical properties at high CNC concentrations. These findings are rationalized using common semiempirical models describing the reinforcing effects of CNC alignment in fibers (Halpin−Tsai) and CNC percolation in films (percolation model). The formation of a percolating CNC network leads to a stronger reinforcement than CNC alignment, as the reinforcing effect of the latter is limited by the comparably low aspect ratio of CNCs extracted from cotton. As a consequence, above the percolation threshold for cotton CNCs, isotropic nanocomposite PU films show a higher stiffness than aligned nanocomposite PU fibers.

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Section: Introductionmentioning

confidence: 99%

Comparing Percolation and Alignment of Cellulose Nanocrystals for the Reinforcement of Polyurethane Nanocomposites

Redondo

Mortensen

Djeghdi

et al. 2022

ACS Appl. Mater. Interfaces

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“…According to several studies on CNC-containing nanocomposite fibers, CNC with anisotropic morphology (whisker structure) promotes chain orientation through intermolecular interactions with the polymer matrix. [44][45][46][47][48] The chemical affinity between PBAT and CNC in the fiber form at room temperature of 25 C can be theoretically estimated using the Hansen solubility parameters (HSP). Table 2 lists the total and individual solubility parameters of PBAT, CNC, and DMSO, where the total solubility parameter (δ), is split into three different components including dispersive (δ d ), polar (δ p ), and hydrogen bonding (δ h ) terms, is given by equation.…”

Section: Resultsmentioning

confidence: 99%

“…According to several studies on CNC‐containing nanocomposite fibers, CNC with anisotropic morphology (whisker structure) promotes chain orientation through intermolecular interactions with the polymer matrix 44–48 . The chemical affinity between PBAT and CNC in the fiber form at room temperature of 25°C can be theoretically estimated using the Hansen solubility parameters (HSP).…”

Section: Resultsmentioning

confidence: 99%

Ultra‐strong and biodegradable nanocomposite fibers of poly(butylene adipate‐co‐terephthalate)/cellulose nanocrystal prepared by dry‐jet wet spinning

Lee,

Kim,

Kim

et al. 2024

Polymer Composites

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Fiber‐based products constitute a significant portion of plastic waste and cause environmental damage. In particular, discarded sanitary masks and fishing gear disintegrate into microfiber plastics, posing a significant threat to human health and ecosystems. In this study, we developed robust biodegradable nanocomposite fibers of poly(butylene adipate‐co‐terephthalate) (PBAT)/cellulose nanocrystals (CNCs) (1 and 2 wt%) through dry‐jet wet spinning, by using dimethyl sulfoxide (DMSO) as a common solvent. The control PBAT fibers exhibit remarkable mechanical performance with tensile strength and toughness of 160.0 MPa and 43.0 MJ m−3, respectively. CNC addition has a toughening effect with slightly reduced strength but enhanced toughness (148.8 MPa and 69.0 MJ m−3, respectively, for 2 wt% CNC); their mechanical performances are superior to those of previously reported PBAT‐based materials. The remarkable performance of the fibers is attributed to a highly oriented structure with a total draw ratio of 15 after post‐hot drawing. The control and nanocomposite fibers exhibit spot‐like patterns in 2D wide‐angle x‐ray diffraction patterns with Herman's orientation factor of 0.54–0.58. The theoretical Hansen solubility parameter confirmed the poor chemical affinity between the PBAT and CNC. Nonetheless, the rheological characterization revealed that well‐dispersed CNCs with DMSO produced a physical network in the PBAT matrix, resulting in the toughening effect. Such robust nanocomposite fibers consisting of fully biodegradable components are promising alternatives to nondegradable nylon and polyester fibers.Highlights Robust biodegradable nanocomposite fibers of PBAT and CNC are prepared. Nanocomposite fibers are dry‐jet wet spun using DMSO as a common solvent. PBAT fibers exhibit strength and toughness of 160.0 MPa and 43.0 MJ m−3. 2 wt% CNC toughens the PBAT fibers with an enhanced toughness of 69.0 MJ m−3. Rheological results confirm the toughening effect of well‐dispersed CNC in PBAT.

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“…Engineering plastics (EPs) are high-performance polymers that outperform traditional plastics in terms of their mechanical properties and thermal, chemical, and environmental stabilities [ 30 , 31 , 32 ]. Typical examples of EPs include polycarbonates, polyamides, polyesters, polyacetals, modified poly(phenylene oxide)s, polyethersulfones, poly(phenylene sulfide)s, polyetherketones, and polyimides.…”

Section: Introductionmentioning

confidence: 99%

Highly Self-Healable Polymeric Coating Materials with Enhanced Mechanical Properties Based on the Charge Transfer Complex

et al. 2022

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Polymeric coating materials (PCMs) are promising candidates for developing next-generation flexible displays. However, PCMs are frequently subjected to external stimuli, making them highly susceptible to repeated damage. Therefore, in this study, a highly self-healing PCM based on a charge transfer complex (CTC) was developed, and its thermal, self-healing, and mechanical properties were examined. The self-healing material demonstrated improved thermal stability, fast self-healing kinetics (1 min), and a high self-healing efficiency (98.1%) via CTC-induced multiple interactions between the polymeric chains. In addition, it eliminated the trade-off between the mechanical strength and self-healing capability that is experienced by typical self-healing materials. The developed PCM achieved excellent self-healing and superior bulk (in-plane) and surface (out-of-plane) mechanical strengths compared to those of conventional engineering plastics such as polyether ether ketone (PEEK), polysulfone (PSU), and polyethersulfone (PES). These remarkable properties are attributed to the unique intermolecular structure resulting from strong CTC interactions. A mechanism for the improved self-healing and mechanical properties was also proposed by comparing the CTC-based self-healing PCMs with a non-CTC-based PCM.

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Preparation of High-Performance Polyethersulfone/Cellulose Nanocrystal Nanocomposite Fibers via Dry-Jet Wet Spinning

Cited by 11 publications

References 39 publications

Comparing Percolation and Alignment of Cellulose Nanocrystals for the Reinforcement of Polyurethane Nanocomposites

Comparing Percolation and Alignment of Cellulose Nanocrystals for the Reinforcement of Polyurethane Nanocomposites

Ultra‐strong and biodegradable nanocomposite fibers of poly(butylene adipate‐co‐terephthalate)/cellulose nanocrystal prepared by dry‐jet wet spinning

Highly Self-Healable Polymeric Coating Materials with Enhanced Mechanical Properties Based on the Charge Transfer Complex

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