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Exploring the Impact of Pressing Techniques on Mycelium-Based Biocomposites

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Abstract:

Mycelium-based composite (MBC), as a new engineering biocomposite, is receiving numerous interests due to its environmental sustainability. The study aimed to address the challenge of optimizing the physical properties of MBC for a more efficient production process. The study investigated the impact of hot or cold pressing, different pressing temperatures (120 °C, 160 °C, and 200 °C), pressing pressures (low, medium and high) and sequences (before and after drying process) on the physical properties of MBC such as density, shrinkage, moisture content and hardness. Mycelium millets were mixed with kenaf, carbon carbonate, wheat bran and wheat flour. The pressing methods and sequences significantly affected the properties of the MBC. Cold pressing had no effect on reducing shrinkage and moisture content of MBC but improved density. Hot pressing increased hardness at higher temperature and pressure, with strong mycelium-substrate bonding and less porosity observed in SEM image. The post processing sequence involving drying followed by hot pressing at 200°C exhibited higher density, hardness, less shrinkage and controllable moisture content of MBC for better dimensional stability and quality control purpose. It was crucial to optimize MBC pressing techniques for specific applications and ensure that it satisfied the demanding standards of companies looking for sustainable alternatives and cost-effective production.

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Periodical:

Materials Science Forum (Volume 1177)

Pages:

75-84

DOI:

https://doi.org/10.4028/p-3zEGXw

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Online since:

February 2026

Authors:

Normariah Che Maideen, Koay Mei Hyie*, Hamid Yussof, Johaikal Jamaluddin, Johari Abdullah, Norsila Abdul Wahab, Yose Fachmi Buys

Keywords:

Biocomposite, Cold Pressing, Hot Pressing, Mycelium, Temperature

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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