PAN fiber diameter effect on the structure of PAN-based carbon fibers

Kong, Lingqiang; Liu, Hui; Cao, Weiyu; Xu, Lianyong

doi:10.1007/s12221-014-2480-1

Cited by 54 publications

(38 citation statements)

References 12 publications

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“…Indeed, for PAN based CFs the formation of skin-core defects is amplified at higher stabilization temperatures, attributed to an uneven heat treatment (Bahl and Manocha 1974;Kong et al 2014;Su et al 2013). Therefore, selecting the stabilization conditions is often a tradeoff between reducing processing times and producing quality fibre.…”

Section: Stabilization Of Cellulose-lignin Composite Fibresmentioning

confidence: 99%

Enhanced stabilization of cellulose-lignin hybrid filaments for carbon fiber production

Byrne

Silva

et al. 2017

Cellulose

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Herein we investigate the stabilization behavior of a cellulose-lignin composite fibre towards application as a new bio derived precursor for carbon fibres. Carbon fibre materials are in high demand as we move towards a lower emission high-efficiency society. However, the most prominent current carbon fibre precursor is an expensive fossil-based polymer. Over the past decade significant research has focused on using renewable and bio derived alternatives. By blending cellulose and lignin and spinning a fibre with a continuous bi-component matrix a new approach to overcome the current limitations of both these precursors is proposed. A thorough study is conducted here on understanding the stabilization of the new precursors which is a critical step in the carbon fibre process. We show that stabilization times of the composite fibre are significantly reduced in comparison to pure lignin and improvements in mass yield compared to pure cellulose fibres are observed.

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Section: Stabilization Of Cellulose-lignin Composite Fibresmentioning

confidence: 99%

Enhanced stabilization of cellulose-lignin hybrid filaments for carbon fiber production

Byrne

Silva

et al. 2017

Cellulose

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“…Furthermore, studies of the impact of different process parameters or composition of precursor fibres in single process steps have been done, but there exist only less considerations for the influence of single process parameters over all process stages . This results in very few comprehensive investigations of single process parameters onto fibre structure, correlations of process‐structure‐relations and the fundamental mechanisms of precursor conversion to carbon fibres .…”

Section: Process‐structure‐relations and Their Technical Potentialsmentioning

confidence: 99%

“…In continuous processes, this is mostly accomplished with two furnaces with a low and a high temperature regime. The resulting carbon structures are formed by the gaseous decomposition of the heteroatoms like nitrogen, oxygen and hydrogen which is followed by an overall mass loss, a decrease of fibre diameter, and an increase in density [2,3,90,114,[121][122][123][124]. Decomposition rates are different for the specific heteroatoms as well as for skin and core [13,22].…”

Section: Carbonisationmentioning

confidence: 99%

Influence of processing parameters on the properties of carbon fibres – an overview

Jäger

Cherif

Kirsten

et al. 2016

Materialwissenschaft Werkst

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Several studies have shown the importance of carbon fibres (CF) for different high technology markets. In recent years, different fibre types with improved properties have been developed for those markets. Polyacrylonitrile (PAN) copolymers are the basic raw material (precursor) for these fibres in the predominant case. Improvements of the mechanical fibre properties have mainly been achieved by defect reduction during the manufacturing process. Thus, commercial carbon fibres with tensile strengths up to approx. 7000 MPa are currently available. It can be shown that the strengths can be further increased (in the direction of graphene properties) when the relationship between process conditions and defects due to manufacturing of the fibres is better understood. In this context, novel processes like electron beam crosslinking or UV‐activation have proven to be very promising. The article gives an overview about the current situation in the field of carbon fibres development and particularly shows recent shortcomings with respect to novel applications.

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“…In addition, the carbon fiber having a small diameter is also highly graphitized, and the heat resistance is improved. 28,29…”

Section: Microstructure Characterization and Thermal Conductivity Anamentioning

confidence: 99%

Preparation and properties of lightweight carbon/carbon fiber composite thermal field insulation materials for high-temperature furnace

Wang

Hu²,

Lin³

et al. 2019

Journal of Engineered Fibers and Fabrics

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The main purpose of this work is to make lightweight carbon/carbon fiber composite with low density and low thermal conductivity for high-temperature furnace. Lightweight carbon/carbon fiber composite thermal field insulation materials were prepared by the process method of needle punching—molding curing high-temperature graphitization. The results show that the long carbon fiber in the carbon/carbon fiber composite forms a three-dimensional structure of X-Y-Z with a density of 0.16 ± 0.02 g/cm3, which makes the composite material have excellent thermal insulation performance at high temperature. The thermal conductivity of the carbon/carbon fiber composite at 2000°C is only 0.38 W/(m·K), and the impurity element content is only 19.09 ppm. The method of needle-punching-forming-felt high-temperature graphitization can provide some suggestions for the preparation of the lightweight long carbon fiber composite.

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PAN fiber diameter effect on the structure of PAN-based carbon fibers

Cited by 54 publications

References 12 publications

Enhanced stabilization of cellulose-lignin hybrid filaments for carbon fiber production

Enhanced stabilization of cellulose-lignin hybrid filaments for carbon fiber production

Influence of processing parameters on the properties of carbon fibres – an overview

Preparation and properties of lightweight carbon/carbon fiber composite thermal field insulation materials for high-temperature furnace

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