Utilization of OCC screen rejects for self-binding fiberboard production
Innovative approach to produce premium self-binding fiberboards by repurposing OCC screen rejects, improving quality and sustainability through advanced separation and grinding techniques.
Overview
This innovative solution aims to repurpose Old Corrugated Containers (OCC) screen rejects into high-quality, self-binding fiberboards. By integrating these rejects, which contain valuable fibers, adhesives, and plastics, the process enhances fiberboard quality while promoting sustainable waste management. The approach involves efficient separation and grinding methods to optimize the compatibility between plastics and lignocellulosic fibers, potentially reducing production costs and enhancing product properties such as water resistance and fire retardancy.
Technical specifications
Key features:
- Utilizes OCC screen rejects, comprising fibers, adhesives, and plastics
- Magnetic and density separation methods isolate metals
- Advanced grinding techniques, including cryogenic grinding, address sticky material challenges
- Application of CaCO3 as an anti-sticking agent, produced from seawater carbonation
- Hot pressing process optimized for temperature and pressure conditions
Benefits:
- Enhances modulus of elasticity and rupture of fiberboards
- Improves interaction with water and fire resistance
- Reduces production costs by leveraging waste materials
Technology readiness level
This technology is currently at a Technology Readiness Level (TRL) of 3, indicating experimental proof of concept has been achieved. The next steps involve further testing and validation to meet industry standards for fiberboard performance in terms of modulus of elasticity, water absorption, and fire resistance.
About University of Guelph
The University of Guelph is a comprehensive, mid-sized public research university in Guelph, Ontario. Industry partners engage through an on-campus research park and the Ontario Veterinary College’s teaching hospitals, which enable product evaluation and clinical translation. The university’s Arboretum and the nearby Agriculture and Agri-Food Canada Guelph Research and Development Centre offer living laboratories and federal linkages that support collaborative R&D. Research is backed by competitive federal funding and strong provincial support via the Ontario Agri‑Food Innovation Alliance. The Research Innovation Office serves as the university’s technology transfer and industry liaison hub, supporting IP, licensing, and co‑funded partnerships.
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