The Use of Bio-Polyurethane Binder for the Development of Engineered Wood Composites DOI Open Access
Sigitas Vėjelis, Agnė Kairytė, Saulius Vaitkus

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(11), P. 1434 - 1434

Published: May 22, 2025

Fiber hemp shives and biopolyurethane binder were used to create an engineered wood composite due the synergistic properties of these materials. This study created specimens using different ratios shives, which varied from 0.5 1.5. Different pressure levels when preparing specimens, 1.5, 3.0, 4.5 MPa. The formed showed that both amount level significantly influence strength moisture indicators, processes occur increasing pressure. research developed composites had reached bending equal 17 MPa, tensile 7 compressive stress 11 In most cases, index values higher than those various industrial-engineered products. Engineered was characterized by water absorption 35 10%, swelling in 26 10%. flammability determined low-flame method, indicated flammable, but expanded graphite allowed for creation non-flammable specimens.

Language: Английский

Self‐Bonded Wood Composites with Efficient Heat Dissipation Enabled by In‐Situ Grown Co/Zn Bimetallic MOFs DOI Open Access
Haoran Ye, Yuxuan Cao, Xin Jin

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Abstract Most electronic product packaging materials are made of plastic, a petroleum‐based material with limited heat dissipation capabilities, restricting its suitability for heat‐intensive products. Wood‐based composites have gained widespread usage due to their environmental friendliness and cost‐effectiveness. However, the low thermal conductivity restricts application in requiring efficient dissipation. Here, high‐strength wood‐based composite excellent antibacterial property (WBC/ZIF‐67/8) is constructed through self‐bonding technology. The WBC/ZIF‐67/8 demonstrates exceptional mechanical properties tensile flexural strengths 66.87 86.33 MPa, respectively. Importantly, it exhibits 1.01 W mK −1 , significantly surpassing that densified wood. This superior performance attributed core‐shell structure formed situ growth ZIF‐67/8 crystals on wood fibers. Although fibers themselves exhibit relatively conductivity, this enables effective conduction diffusion at interface between high Simultaneously, introduction enhanced anti‐mildew composite. These improvements capability pave way durable sustainable packaging.

Language: Английский

Citations

0
The Use of Bio-Polyurethane Binder for the Development of Engineered Wood Composites DOI Open Access
Sigitas Vėjelis, Agnė Kairytė, Saulius Vaitkus

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(11), P. 1434 - 1434

Published: May 22, 2025

Fiber hemp shives and biopolyurethane binder were used to create an engineered wood composite due the synergistic properties of these materials. This study created specimens using different ratios shives, which varied from 0.5 1.5. Different pressure levels when preparing specimens, 1.5, 3.0, 4.5 MPa. The formed showed that both amount level significantly influence strength moisture indicators, processes occur increasing pressure. research developed composites had reached bending equal 17 MPa, tensile 7 compressive stress 11 In most cases, index values higher than those various industrial-engineered products. Engineered was characterized by water absorption 35 10%, swelling in 26 10%. flammability determined low-flame method, indicated flammable, but expanded graphite allowed for creation non-flammable specimens.

Language: Английский

Citations

0