On the methodological measurements of viscosity of unidirectional Flax/PP composites: Towards a benchmark

On the methodological measurements of viscosity of unidirectional Flax/PP composites: Towards a benchmark


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Abstract Understanding the viscosity behaviour of the pre-impregnated thermoplastic composites is crucial for optimizing manufacturing processes and ensuring the end product’s performance. Reviewing prior research on this topic reveals that viscosity measurements have encountered numerous difficulties, resulting in unclear interpretations and complexities in data processing. The variations in viscosity can be influenced by factors such as cavity thickness, temperature, and compression rate. The objective of this work was to enhance the reliability of results, taking a step toward initiating a benchmark for viscosity measurements of pre-impregnated thermoplastic. The study focuses on transverse squeeze flow experiments of UD flax/polypropylene (PP) for viscosity measurements.

Rheology, Viscosity, Squeeze Flow, Thermoplastic Biocomposite

Published online 4/24/2024, 9 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: SIMAFROOKTEH Sepehr, PERRIN Henri, IVENS Jan, LOMOV Stepan V., BODAGHI Masoud, On the methodological measurements of viscosity of unidirectional Flax/PP composites: Towards a benchmark, Materials Research Proceedings, Vol. 41, pp 651-659, 2024

DOI: https://doi.org/10.21741/9781644903131-72

The article was published as article 72 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

[1] Boisse P, Akkerman R, Carlone P, Kärger L, Lomov SV, Sherwood JA. Advances in composite forming through 25 years of ESAFORM. Int J Mater Form 2022;15:39. https://doi.org/10.1007/s12289-022-01682-8
[2] Picher-Martel G-P. Compression moulding of randomly-oriented strands thermoplastic composites: a study of the flow and deformation mechanisms. PhD Dissertation. McGill University, 2015.
[3] Yassin K, Hojjati M. Processing of thermoplastic matrix composites through automated fiber placement and tape laying methods: A review. Journal of Thermoplastic Composite Materials 2018;31:1676–725. https://doi.org/10.1177/0892705717738305
[4] Grouve WJB, Warnet LL, Rietman B, Visser HA, Akkerman R. Optimization of the tape placement process parameters for carbon–PPS composites. Composites Part A: Applied Science and Manufacturing 2013;50:44–53. https://doi.org/10.1016/j.compositesa.2013.03.003
[5] Schaefer P, Guglhoer T, Sause M, Drechsler K. Development of intimate contact during processing of carbon fiber reinforced Polyamide-6 tapes. Journal of Reinforced Plastics and Composites 2017;36:593–607. https://doi.org/10.1177/0731684416687041
[6] Budelmann D, Schmidt C, Steuernagel L, Meiners D. Adhesion-cohesion balance of prepreg tack in thermoset automated fiber placement. Part 2: Ply-ply cohesion through contact formation and autohesion. Composites Part C: Open Access 2023;12:100396. https://doi.org/10.1016/j.jcomc.2023.100396
[7] Schaefer PM. Material characterization for determining the consolidation properties of carbon fiber tapes with PA6 matrix. ICCM20, Cpenhagen: 2015.
[8] Khan MA, Mitschang P, Schledjewski R. Identification of some optimal parameters to achieve higher laminate quality through tape placement process. Adv Polym Technol 2010;29:98–111. https://doi.org/10.1002/adv.20177
[9] Khodaei A, Shadmehri F. Intimate contact development for automated fiber placement of thermoplastic composites. Composites Part C: Open Access 2022;8:100290. https://doi.org/10.1016/j.jcomc.2022.100290
[10] Yang F, Pitchumani R. A fractal Cantor set based description of interlaminar contact evolution during thermoplastic composites processing. Journal of Materials Science 2001;36:4661–4671. https://doi.org/10.1023/A:1017950215945
[11] Çelik O, Peeters D, Dransfeld C, Teuwen J. Intimate contact development during laser assisted fiber placement: Microstructure and effect of process parameters. Composites Part A: Applied Science and Manufacturing 2020;134:105888. https://doi.org/10.1016/j.compositesa.2020.105888
[12] Kok T. On the consolidation quality in laser assisted fiber placement: the role of the heating phase. PhD Dissertation. University of Twente, 2018. https://doi.org/10.3990/1.9789036546065
[13] Carlesso P. Temperature-dependent viscosity assessment of neat polyamide 6 and unidirectional carbon-fiber reinforced polyamide 6 (UD CF/PA6). MSc Thesis. KU Leuven, 2023.
[14] Engmann J, Servais C, Burbidge AS. Squeeze flow theory and applications to rheometry: A review. Journal of Non-Newtonian Fluid Mechanics 2005;132:1–27. https://doi.org/10.1016/j.jnnfm.2005.08.007
[15] Arbter R, Beraud JM, Binetruy C, Bizet L, Bréard J, Comas-Cardona S, et al. Experimental determination of the permeability of textiles: A benchmark exercise. Composites Part A: Applied Science and Manufacturing 2011;42:1157–68. https://doi.org/10.1016/j.compositesa.2011.04.021
[16] Vernet N, Ruiz E, Advani S, Alms JB, Aubert M, Barburski M, et al. Experimental determination of the permeability of engineering textiles: Benchmark II. Composites Part A: Applied Science and Manufacturing 2014;61:172–84. https://doi.org/10.1016/j.compositesa.2014.02.010
[17] May D, Aktas A, Advani SG, Berg DC, Endruweit A, Fauster E, et al. In-plane permeability characterization of engineering textiles based on radial flow experiments: A benchmark exercise. Composites Part A: Applied Science and Manufacturing 2019;121:100–14. https://doi.org/10.1016/j.compositesa.2019.03.006
[18] Sojoudiasli H, Heuzey M-C, Carreau PJ. Rheological, morphological and mechanical properties of flax fiber polypropylene composites: influence of compatibilizers. Cellulose 2014;21:3797–812. https://doi.org/10.1007/s10570-014-0375-3
[19] Doumbia AS, Castro M, Jouannet D, Kervoëlen A, Falher T, Cauret L, et al. Flax/polypropylene composites for lightened structures: Multiscale analysis of process and fibre parameters. Materials & Design 2015;87:331–41. https://doi.org/10.1016/j.matdes.2015.07.139
[20] Mihai M, Denault J. Interrelation Between Melt Processing Conditions, Formulation And Properties Of Polypropylene / Short Flax And Hemp Fiber Composites, Boston, Massachusetts, USA: 2011.
[21] Lin H-R, Advani SG. Processing models and characterization of thermoplastic composite wound parts. Polym Compos 1997;18:405–11. https://doi.org/10.1002/pc.10291
[22] Yong AXH, Aktas A, May D, Endruweit A, Lomov SV, Advani S, et al. Experimental characterisation of textile compaction response: A benchmark exercise. Composites Part A: Applied Science and Manufacturing 2021;142:106243. https://doi.org/10.1016/j.compositesa.2020.106243
[23] Goshawk JA, Navez VP, Jones RS. Squeezing flow of continuous fibre-reinforced composites. Journal of Non-Newtonian Fluid Mechanics 1997;73:327–42. https://doi.org/10.1016/S0377-0257(97)00049-9
[24] Picher-Martel G-P, Levy A, Hubert P. Compression molding of Carbon/Polyether ether ketone composites: Squeeze flow behavior of unidirectional and randomly oriented strands. Polymer Composites 2017;38:1828–37.
[25] Valverde MA, Belnoue JP-H, Kupfer R, Kawashita LF, Gude M, Hallett SR. Compaction behaviour of continuous fibre-reinforced thermoplastic composites under rapid processing conditions. Composites Part A: Applied Science and Manufacturing 2021;149:106549. https://doi.org/10.1016/j.compositesa.2021.106549
[26] Shuler SF, Advani SG. Transverse squeeze flow of concentrated aligned fibers in viscous fluids. Journal of Non-Newtonian Fluid Mechanics 1996;65:47–74. https://doi.org/10.1016/0377-0257(96)01440-1
[27] Arquier R, Miquelard-Garnier G, Iliopoulos I, Régnier G. Assessing the shear viscous behavior of continuous carbon fiber reinforced PEKK composites with squeeze flow measurements. Polymer Testing 2023;123:108060. https://doi.org/10.1016/j.polymertesting.2023.108060