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Structural Correlation Coefficient for Polymer Structural Composites-Reinforcement with Hemp and Glass Fibre
Mieczyslaw Scheibe1, Magdalena Urbaniak2, Andrzej Bledzki2
1Faculty of Marine Engineering, Maritime University of Szczecin, 70-500 Szczecin, Poland.
Polymers
|December 31, 2025
Summary
Industrial hemp (HF) fibers can replace glass fibers (GF) in polymer composites for products like boats. Hemp fiber reinforced polymer (HFRP) composites offer environmental benefits for recycling and disposal.
Area of Science:
- Materials Science
- Composite Materials Engineering
- Sustainable Engineering
Background:
- Traditional polymer composites often use glass fibers (GF), raising environmental concerns regarding end-of-life disposal.
- Industrial hemp (HF) fibers present a sustainable alternative reinforcement material.
- The marine industry seeks eco-friendly materials for recreational vessels and floating structures.
Purpose of the Study:
- To analyze the feasibility, purposefulness, and legitimacy of using industrial hemp (HF) fibers as reinforcement in polymer structural composites.
- To compare the properties of hemp fiber reinforced polymer (HFRP) composites against traditional glass fiber reinforced polymer (GFRP) composites.
- To assess the environmental impact and end-of-life options for HFRP composites.
Main Methods:
- Fabrication and testing of HFRP and GFRP polymer structural composites.
- Physical, mechanical, and morphological characterization of the composite materials.
- Comparative analysis of HFRP and GFRP properties, including determination of a structural correlation coefficient.
- Evaluation of environmental protection requirements, recycling, disposal, and fire performance.
Main Results:
- A structural correlation coefficient for HFRP relative to GFRP was determined as WK = 1.66 (6) under comparable reinforcement grammage.
- HFRP composites demonstrate potential for meeting stringent environmental protection requirements for safe recycling and disposal.
- Fire tests indicate suitability for near-complete utilization (almost 100%), primarily through energy recovery.
Conclusions:
- Industrial hemp fibers are a viable and purposeful alternative to glass fibers in polymer composites for applications like recreational vessels.
- HFRP composites offer significant environmental advantages in terms of recyclability and disposal compared to GFRP.
- The use of HFRP aligns with future environmental regulations and promotes a circular economy through energy recovery.
Keywords:
disposalhemp fibre reinforced polymer compositesindustrial hemp (Cannabis sativa L.)recyclingstructural correlation coefficientMore Related Videos
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