期刊
BIORESOURCES
卷 16, 期 1, 页码 987-996出版社
NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI
DOI: 10.15376/biores.16.1.987-996
关键词
Alkali washing; Betung bamboo; Oriented strand board; NaOH concentration; Steam modification
资金
- Directorate of Higher Education (DIKTI), Ministry of Research, Technology, and Higher Education, Republic of Indonesia [4122/IT3.L1/PN/2020, 4168/IT3.L1/PN/2020]
- Science and Technology Support Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT (MSIT) [NRF-2019K1A3A9A01000018]
- Basic Science Research Program through the NRF - Ministry of Education [2016R1D1A1B01008339, 2018R1A6A1A03025582]
- Kangwon National University
- National Research Foundation of Korea [2016R1D1A1B01008339] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The physical and mechanical properties of BOSBs were significantly increased by alkali washing treatment at concentrations from 1% to 3%, with the greatest properties obtained at a 3% concentration. However, washing treatments at concentrations of 4% and 5% resulted in reduced physical and mechanical properties of the BOSBs.
Effects of alkali washing were determined after steam treatment of Betung bamboo strands relative to the properties of the bamboo oriented strand boards (BOSBs). The strands were subjected to steam treatment at 126 degrees C for 1 h under 0.14 MPa of pressure, followed by washing with sodium hydroxide solution at concentrations ranging from 1% to 5% for 30 s. Three-layer BOSBs were manufactured with a target density of approximately 0.7 g/cm(3) using 8% phenol formaldehyde resin with the addition of 1% wax. The shelling ratio of the BOSBs was set to be 1:1:1. The physical and mechanical properties increased significantly with the alkali washing treatment at concentrations from 1% to 3%, and the greatest properties were obtained by washing at 3% alkali concentration. However, the washing treatment at concentrations of 4% and 5% reduced the physical and mechanical properties of the BOSBs.
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