Wet spun polyacrylonitrile-based hollow-mesoporous fibers with different draw ratios

Zhang, Bing; Lü, Chunxiang; Liu, Yaodong; Zhou, Pengpeng; Zhuang, Yu; Yuan, Shuxia

doi:10.1016/j.polymer.2019.121618

Cited by 13 publications

(8 citation statements)

References 32 publications

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“…Lignin can serve as a precursor for CF production and can be used as single raw material or blended with other polymers, such as PAN (B. Zhang et al, 2019), nanocellulose (Wang et al, 2019), cellulose (Bengtsson et al, 2018;Ma et al, 2015) as well as a mixture of cellulose and hemicellulose (Nypelö, Asaadi, Kneidinger, Sixta, & Konnerth, 2018).…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Cellulose-lignin composite fibres as precursors for carbon fibres. Part 1 – Manufacturing and properties of precursor fibres

Trogen

Sawada

et al. 2021

Carbohydrate Polymers

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Cellulose-lignin composite fibres as precursors for carbon fibres. Part 1 -Manufacturing and properties of precursor fibres Mikaela Trogen (Conceptualization) (Investigation) (Formal analysis) (Visualization) (Writing -original draft), Nguyen-Duc Le (Resources) (Writing -review and editing), Daisuke Sawada (Investigation) (Formal analysis) (Visualization) (Writing -review and editing), Chamseddine Guizani (Formal analysis) (Writing -review and editing), Tainise Vergara Lourençon (Investigation) (Formal analysis) (Writing -review and editing), Leena Pitkänen (Investigation) (Formal analysis) (Writing -review and editing), Herbert Sixta (Resources) (Supervision), Riddhi Shah (Investigation) (Writingreview and editing), Hugh O'Neill (Resources) (Writing -review and editing), Mikhail Balakshin (Resources) (Writing -review and editing), Nolene Byrne (Resources) (Supervision) (Writing -review and editing), Michael Hummel (Supervision) (Funding acquisition) (Conceptualization) (Resources) (Writing -review and editing)

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Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Cellulose-lignin composite fibres as precursors for carbon fibres. Part 1 – Manufacturing and properties of precursor fibres

Trogen

Sawada

et al. 2021

Carbohydrate Polymers

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“…The slope value of 2 indicates a homogeneous, monodisperse polymer solution or melt. 42,43 The heterogeneous polymeric system, such as block copolymers, liquid crystals and suspensions et al, presents a slope value no more than 2. The larger departure values from 2 means the larger heterogeneity.…”

Section: Dynamic State Flow Behaviorsmentioning

confidence: 99%

Influence of surfactants on rheological behaviors of polyacrylonitrile/dimethyl sulfoxide/silicon blending polymer solutions

Yuan

Guo

Ren

et al. 2021

J of Applied Polymer Sci

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KH550, KH560, CTAB, and F127 were adopted to modify silicon (Si) to improve the dispersity and stability of Si in the polyacrylonitrile/dimethyl sulfoxide (PAN/DMSO) polymer solutions. The influence of surfactants on rheological behaviors of PAN/DMSO/Si blending polymer solutions was investigated by an advanced solution and melt rotation rheometer. The homogeneity and stability were also studied. The results showed that the surfactants could change the viscosity dependence of blending polymer solutions on shear rate, temperature and storage time by increase the steric hindrance of Si. Among the four solutions, PAN/DMSO/Si blending polymer solution with F127 exhibited the lowest viscosity, activation energy and the smallest structural viscosity index and exhibited the trend close to the Newtonian fluids. Moreover, PAN/DMSO/Si blending polymer solution with F127 exhibited the best dispersity and stability, indicating its best physical properties and machinability.

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“…[2][3][4][5][6] Currently, there are four main methods for preparing hollow fibers: coaxial electrospinning, 7,8 dry jet wet spinning, 9,10 melt spinning and wet spinning. 11,12 For example, Li et al 13 used electrospinning to prepare luminous hollow nanofibers. Tham et al 14 adopted dry jet wet spinning to prepare polyacrylonitrile hollow fibers for filtration.…”

Section: Introductionmentioning

confidence: 99%

“…It is precisely because of the existence of mesopores that it can be applied to catalytic reactions involving macromolecule and middle molecule, separation of biological enzymes in the pharmaceutical field, electrode materials for fuel cells in the field of energy storage, reactions in the preparation of molecules with special sizes and other fields 2–6 . Currently, there are four main methods for preparing hollow fibers: coaxial electrospinning, 7,8 dry jet wet spinning, 9,10 melt spinning and wet spinning 11,12 . For example, Li et al 13 used electrospinning to prepare luminous hollow nanofibers.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of triangular hollow porous polyacrylonitrile fiber made by coaxial wet spinning

Wang

Zhang

et al. 2021

J of Applied Polymer Sci

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Hollow porous fiber with both hollow and mesoporous structural characteristics can play an important role in storage, adsorption, and other fields. Triangular hollow porous fiber was prepared by coaxial wet spinning in this paper.Polyacrylonitrile (PAN) and N-N dimethylformamide (DMF) were blended to get cortical solution. Polyvinylpyrrolidone (PVP) and DMF were blended to get core solution. Subsequently, coaxial triangular spinneret was adopted to inject solution into coagulation bath for double diffusion and obtain primary fiber. Then PAN-based triangular fiber with high porosity was prepared after washing and drying. Scanning electron microscopy, nitrogen physical adsorption instrument, thermogravimetric analyzer, and other instruments were used to test and characterize. The results show that the cross-section of the fiber is triangular and has a sense of luster. The hollow degree of the fiber is as high as 84.17%, and the sheath has three-level structure with multi-scale pore diameters, including micropores (200 μm), submicron pores (200 nm), and nanopores (20 nm). Through the range analysis of orthogonal experiment, it is found that the concentration of cortical solution is the main factor affecting the fiber tensile strength. When the concentration of cortical solution is 17%, the concentration of core solution is 10%, the flow rate ratio of cortical solution to core solution is 10:1, and the concentration of coagulation bath is 10%, the fiber tensile strength reaches 1.43 N/mm 2 . The thermal insulation performance of fiber is better than that of silk, cotton and polyester. The results in this paper will provide an experimental foundation for the design and application of hollow porous profiled fibers.

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Wet spun polyacrylonitrile-based hollow-mesoporous fibers with different draw ratios

Cited by 13 publications

References 32 publications

Cellulose-lignin composite fibres as precursors for carbon fibres. Part 1 – Manufacturing and properties of precursor fibres

Cellulose-lignin composite fibres as precursors for carbon fibres. Part 1 – Manufacturing and properties of precursor fibres

Influence of surfactants on rheological behaviors of polyacrylonitrile/dimethyl sulfoxide/silicon blending polymer solutions

Preparation and characterization of triangular hollow porous polyacrylonitrile fiber made by coaxial wet spinning

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