1
|
Liu Y, Fan J, Yao F, Gao X, Zhao Y, Liu B, Dong X, Li Y. Epoxy-Acrylic Polymer In-Situ Filling Cell Lumen and Bonding Cell Wall for Wood Reinforcement and Stabilization. Polymers (Basel) 2024; 16:152. [PMID: 38201817 PMCID: PMC10780777 DOI: 10.3390/polym16010152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024] Open
Abstract
Under a global carbon-neutralizing environment, renewable wood is a viable alternative to non-renewable resources due to its abundance and high specific strength. However, fast-growing wood is hard to be applied extensively due to low mechanical strength and poor dimensional stability and durability. In this study, epoxy-acrylic resin-modified wood was prepared by forming a functional monomer system with three monomers [glycidyl methacrylate (GMA), maleic anhydride (MAN), and polyethylene glycol-200-dimethylacrylic acid (PEGDMA)] and filling into the wood cell cavity. The results showed that in the case of an optimal monomer system of nGMA:nPEGDMA = 20:1 and an optimal MAN dosage of 6%, the conversion rate of monomers reached 98.01%, the cell cavity was evenly filled by the polymer, with the cell wall chemically bonded. Thus, a bonding strength of as high as 1.13 MPa, a bending strength of 112.6 MPa and an impact toughness of 74.85 KJ/m2 were applied to the modified wood, which presented excellent dimensional stability (720 h water absorption: 26%, and volume expansion ratio: 5.04%) and rot resistance (loss rates from white rot and brown rot: 3.05% and 0.67%). Additionally, polymer-modified wood also exhibited excellent wear resistance and heat stability. This study reports a novel approach for building new environmentally friendly wood with high strength and toughness and good structural stability and durability.
Collapse
Affiliation(s)
- Yiliang Liu
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai’an 271018, China; (Y.L.); (J.F.); (F.Y.)
| | - Jilong Fan
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai’an 271018, China; (Y.L.); (J.F.); (F.Y.)
| | - Fengbiao Yao
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai’an 271018, China; (Y.L.); (J.F.); (F.Y.)
| | - Xudong Gao
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai’an 271018, China; (Y.L.); (J.F.); (F.Y.)
| | - Yueying Zhao
- Shandong Everjoy Technology Material Co., Ltd., Jining 277600, China;
| | - Baoxuan Liu
- Shandong Laucork Development Co., Ltd., Jining 272100, China;
| | - Xiaoying Dong
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai’an 271018, China; (Y.L.); (J.F.); (F.Y.)
| | - Yongfeng Li
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai’an 271018, China; (Y.L.); (J.F.); (F.Y.)
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, No. 26 Hexing Road, Harbin 150040, China
| |
Collapse
|