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- Title
Formaldehyde-Free Bio-composites Based on Pleurotus ostreatus Substrate and Corn Straw Waste.
- Authors
Yalan Yan; Bo Wang; Xin Zhang; Xu Zeng; Jian Zhu; Xiaoe Wang; Yan Li; Shuang Ding; Hong Zhang; Bo Ren; Xiaodong Yang
- Abstract
Corn straw-based board has great potential for the protection of forest resources, waste recycling, and sustainable economic development. However, corn stalk-based board has poor mechanical properties due to its short fiber length and poor water resistance because of the presence of numerous hydrophilic hydroxyl functional groups in its structure. Natural mycelium originating from waste Pleurotus ostreatus substrate is a hydrophobic bio-adhesive. In the present study, formaldehyde-free corn stalk/P. ostreatus substrate bio-composites were prepared using the hotpressing technique without the addition of any chemical adhesive. The mechanical properties and water resistance of the prepared biocomposites were excellent. The highest internal bonding strength (IBS) of 2.16 MPa and the minimum thickness swelling (TS) of 18.3% were observed, which are beyond the national standards for particleboard in China. These bio-composites were prepared using a simple, green, and convenient manufacturing method to promote their popularization and application. The method may, therefore, be used as a novel technical measure to resolve the problem of overuse of forestry resources and waste disposal.
- Subjects
SUSTAINABLE development; PLEUROTUS ostreatus; CORN straw; WASTE recycling; CORNSTALKS
- Publication
BioResources, 2024, Vol 19, Issue 3, p4352
- ISSN
1930-2126
- Publication type
Article
- DOI
10.15376/biores.19.3.4352-4365