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Effect of concentration on PVA solutions and its usage in recycling carbon fiber/polyamide 12 prepregs

  • Aylin Altınbay

    Dipl. -Ing. Dr. Aylin Altınbay, born in 1984, is research assistant at the Department of Metallurgical and Materials Engineering, Yildiz Technical University, Istanbul, Turkey.

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Published/Copyright: August 14, 2024
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Materials Testing
From the journal Materials Testing Volume 66 Issue 10

Abstract

Polyvinyl alcohol (PVA) is a biodegradable synthetic polymer with high chemical resistance and excellent mechanical and oxygen barrier properties. Besides these superior properties, it is water-soluble, which provides its wide usage. However, its solubility depends on some factors. Although the temperature is one of these factors and increasing temperature could promote solubility, there is a solubility limit according to hydrolysis degree. In this study, PVA solutions at various concentrations were obtained by mixing fully hydrolyzed PVA1500 and water. Solutions were characterized by density, surface contact angle and dynamic viscosity measurements. Then, solvent casting was used to obtain films, and physical and mechanical properties were determined. Tensile test results showed optimum values at 10–12.5 wt.% PVA concentration. Also, vacuum drying changed the mechanical behavior of films significantly at all concentrations. While ultimate tensile stress values almost doubled and modulus values increased approximately three times, elongations critically decreased. Solutions were also subjected to waste carbon fiber (CF)/polyamide 12 (PA12) prepregs for recycling purposes. Lay-up and compression molding processes were applied to produce CF/PA12 composites. It was seen that mechanical results were significantly increased with increasing PVA concentration.

Keywords: PVA; concentration; viscosity; joining; composite; recycling
Corresponding author: Aylin Altınbay, Department of Metallurgical and Materials Engineering, Yildiz Technical University, Istanbul 34349, Türkiye, E-mail:

Funding source: Yildiz Technical University

Award Identifier / Grant number: FBA-2022-5003

About the author

Aylin Altınbay

Dipl. -Ing. Dr. Aylin Altınbay, born in 1984, is research assistant at the Department of Metallurgical and Materials Engineering, Yildiz Technical University, Istanbul, Turkey.

  1. Research ethics: Not applicable.

  2. Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: The author state no conflict of interest.

  4. Research funding: Yildiz Technical University Scientific Research Projects Coordination Unit under Project No: FBA-2022-5003.

  5. Data availability: The raw data can be obtained on request from the corresponding author.

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Published Online: 2024-08-14
Published in Print: 2024-10-28

© 2024 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. A comparison of recent optimization algorithms for build orientation problems in additive manufacturing
  3. Enhancing the performance of a additive manufactured battery holder using a coupled artificial neural network with a hybrid flood algorithm and water wave algorithm
  4. Numerical study on surface treatment of vibration-impact composite electric spark based on ABAQUS
  5. ANN modeling of tincal ore dehydration
  6. Capacitive voltage effect at a resistive sintering system container and its electrical model
  7. Tensile testing of S690QL1 HSS welded joint heterogeneous zones using small scale specimens and indentation methods
  8. Influence of thinner flaked Al powder with larger diameter on the distribution of B4C particles and tensile properties of B4C/Al composite
  9. Hydrogen susceptibility of Al 5083 under ultra-high strain rate ballistic loading
  10. Mechanical and metallurgical properties of a glass fiber-reinforced Al7075 hybrid composite produced by infiltration and after aging and abrasion
  11. Rotating bending fatigue behavior of high-pressure diecast AlSi10MgMn alloy based on T5 heat treatment parameters
  12. Optimization of springback parameters of an aluminum 1050 alloy by V-bending
  13. Effect of Zr content on the microstructure, mechanical properties, electrochemical behavior, and biocompatibility of Mg–3Zn–xZr alloy using powder metallurgy
  14. Effect of concentration on PVA solutions and its usage in recycling carbon fiber/polyamide 12 prepregs
  15. Optimization of cutting parameters in manufacturing of polymeric materials for flexible two-phase thermal management systems
  16. Growth kinetics of Fe2B layer formed on the surface of borided AISI M2 high-speed steel
  17. Influence of strut angle and radius on the energy absorption and failure mechanisms in 3-strut, 4-strut and 6-strut lattice structures
  18. Microstructure and mechanical properties of similar and dissimilar resistance spot welded DC04 and HRP6222 (DD11) steels
https://doi.org/10.1515/mt-2024-0110
Keywords for this article
PVA; concentration; viscosity; joining; composite; recycling

Articles in the same Issue

  1. Frontmatter
  2. A comparison of recent optimization algorithms for build orientation problems in additive manufacturing
  3. Enhancing the performance of a additive manufactured battery holder using a coupled artificial neural network with a hybrid flood algorithm and water wave algorithm
  4. Numerical study on surface treatment of vibration-impact composite electric spark based on ABAQUS
  5. ANN modeling of tincal ore dehydration
  6. Capacitive voltage effect at a resistive sintering system container and its electrical model
  7. Tensile testing of S690QL1 HSS welded joint heterogeneous zones using small scale specimens and indentation methods
  8. Influence of thinner flaked Al powder with larger diameter on the distribution of B4C particles and tensile properties of B4C/Al composite
  9. Hydrogen susceptibility of Al 5083 under ultra-high strain rate ballistic loading
  10. Mechanical and metallurgical properties of a glass fiber-reinforced Al7075 hybrid composite produced by infiltration and after aging and abrasion
  11. Rotating bending fatigue behavior of high-pressure diecast AlSi10MgMn alloy based on T5 heat treatment parameters
  12. Optimization of springback parameters of an aluminum 1050 alloy by V-bending
  13. Effect of Zr content on the microstructure, mechanical properties, electrochemical behavior, and biocompatibility of Mg–3Zn–xZr alloy using powder metallurgy
  14. Effect of concentration on PVA solutions and its usage in recycling carbon fiber/polyamide 12 prepregs
  15. Optimization of cutting parameters in manufacturing of polymeric materials for flexible two-phase thermal management systems
  16. Growth kinetics of Fe2B layer formed on the surface of borided AISI M2 high-speed steel
  17. Influence of strut angle and radius on the energy absorption and failure mechanisms in 3-strut, 4-strut and 6-strut lattice structures
  18. Microstructure and mechanical properties of similar and dissimilar resistance spot welded DC04 and HRP6222 (DD11) steels
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