Journal article
Superhydrophobic wood surface fabricated by Cu2O nano-particles and stearic acid: its acid/alkali and wear resistance
Holzforschung, Vol.75(10), pp.917-931
2021
Abstract
Reducing the hydrophilic nature of wood could enhance dimensional stability and improve life cycle performance. Masson pine and pecan wood were modified to create superhydrophobic, self-cleaning functions by spray-coating with Cu2O nano-particles (Cu2O NPs)/phenol formaldehyde (PF) resin mixed solution followed by immersion in a stearic acid ethanol solution. Two types of Cu2O NPs, derived from different concentrations of copper chloride (CuCl2) were evaluated for their ability to improve hydrophobicity of wood surface. A special petal-shaped structure on the edge of Cu2O NPs was found on modified pecan wood, and water contact angles (WCA) of both kind of modified wood reached around 155° and sliding angles (SA) less than 10°. Meanwhile, low liquid permeability and excellent repellency to aqueous solutions with pH = 1 to 13 were achieved. The critical WCA around 150° was also maintained on modified wood surfaces after being immersed in strong acid (pH = 2) and strong alkali (pH = 12) solutions for 12 h. Furthermore, remarkable mechanical durability was obtained after harsh abrading test, which could be attributed to the high bond strength from cured PF resin adhesive. Such highly waterproof, acid/alkali resistant and hard-wearing superhydrophobic surface must have potential to be widely applied in wood products industry.
Details
- Title
- Superhydrophobic wood surface fabricated by Cu2O nano-particles and stearic acid: its acid/alkali and wear resistance
- Authors
- Ke Zhan (Author) - Southwest Forestry UniversitySengwei Xia (Author) - Southwest Forestry UniversityQuanxiong Lu (Author) - Southwest Forestry UniversityRuifeng Cheng (Author) - Southwest Forestry UniversityHaiqiu Jiang (Author) - Southwest Research InstituteTengfei Yi (Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design LifeJeffrey Morrell (Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design LifeLong Yang (Author) - Southwest Forestry UniversityLinkun Xie (Author) - Southwest Forestry UniversityHong Lei (Author) - Southwest Forestry UniversityGuanben Du (Author) - Southwest Forestry UniversityWei Gao (Author) - Southwest Forestry University
- Publication details
- Holzforschung, Vol.75(10), pp.917-931
- Publisher
- Walter de Gruyter GmbH
- DOI
- 10.1515/hf-2020-0219
- ISSN
- 1437-434X
- Organisation Unit
- National Centre for Timber Durability and Design Life; Forest Research Institute; University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99526507202621
- Output Type
- Journal article
Metrics
39 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Forestry
- Materials Science, Paper & Wood
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites