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Kolya H, Kang CW. Unveiling enhanced sound absorption in coconut wood through hemicellulose and lignin modification. Int J Biol Macromol 2024; 276:134083. [PMID: 39084986 DOI: 10.1016/j.ijbiomac.2024.134083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/15/2024] [Accepted: 07/20/2024] [Indexed: 08/02/2024]
Abstract
Coconut wood (Cocos nucifera L.) is lightweight and has variable quality, making it a potential candidate for manufacturing sound absorption boards. However, its sound absorption coefficient needs enhancement to optimize its effectiveness in this application. This study aims to enhance its sound absorption properties using eco-friendly hydrogen peroxide and acetic acid treatments. This treatment modified the carbohydrate polymers (hemicellulose and cellulose) and lignin structures in the wood cell wall. The novelty of this approach lies in using these chemicals to improve acoustic performance significantly. Coconut wood samples were treated with a 1:1 acetic acid and hydrogen peroxide mixture for 20, 40, 60, and 80 min. Characterization techniques such as FTIR, XPS, and XRD, and 3D optical profilometry analyzed changes in chemical functionalities, crystallinity, and surface roughness. Sound absorption coefficients were measured using the impedance tube method. Results showed a significant improvement in sound absorption for all treated samples, especially at 60 min. The treatment also enhanced surface roughness, air permeability, porosity, and pore sizes, contributing to better sound absorption. This proposed treatment method addresses environmental consciousness and enhances the sustainable use and utilization of coconut wood.
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Affiliation(s)
- Haradhan Kolya
- Department of Housing Environmental Design and Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Chun-Won Kang
- Department of Housing Environmental Design and Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
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Ni K, Liu C, Yang H, Liu C, Park BD, Yu J, Yin C, Ran X, Wan J, Fan M, Du G, Yang L. Towards high performance wood composites through interface customization with cellulose-based adhesive. Int J Biol Macromol 2024; 265:131053. [PMID: 38521299 DOI: 10.1016/j.ijbiomac.2024.131053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/12/2024] [Accepted: 03/11/2024] [Indexed: 03/25/2024]
Abstract
How to efficiently produce high performance plywood is of particular interest, while its sensitivity to moisture is overcome. This paper presents a simple and scalable strategy for the preparation of high-performance plywood based on the chemical bonding theory; a wood interfacial functionalized platform (WIFP) based on (3-aminopropyl) triethoxysilane (APTES) was established. Interestingly, the APTES-enhanced dialdehyde cellulose-based adhesive (DAC-APTES) was able to effectively establish chemically active adhesive interfaces; the dry/wet shear strength of WIFP/DAC-APTES adhesive was 3.15/1.31 MPa, which was much higher than 0.7 MPa (GB/T 9846-2015). The prepared plywood showed excellent wood-polymer interface adhesion, which exceeded the force that the wood itself could withstand. In addition, the DAC-APTES adhesive exhibits moisture evaporation-induced curing behavior at room temperature and can easily support the weight of an adult weighing 65.7 Kg. This research provides a novel approach for functionalized interface design of wood products, an effective means to prepare high-performance plywood.
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Affiliation(s)
- Kelu Ni
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China
| | - Chuanyin Liu
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China
| | - Hongxing Yang
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China
| | - Chang Liu
- College of Chemical Science and Engineering, Yunnan University, Kunming 650091, China
| | - Byung-Dae Park
- Department of Wood and Paper Science, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jiaojiao Yu
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China
| | - Chunyan Yin
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China
| | - Xin Ran
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China
| | - Jianyong Wan
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China
| | - Mizi Fan
- College of Engineering, Design and Physical Sciences, Brunel University London, UK.
| | - Guanben Du
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
| | - Long Yang
- Yunnan Province Key Lab of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China; Yunnan International Joint R&D Center of Wood and Bamboo Biomass Materials, Southwest Forestry University, Kunming 650224, China.
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Kolya H, Kang CW. Synthesis of starch-based smart hydrogel derived from rice-cooked wastewater for agricultural use. Int J Biol Macromol 2023; 226:1477-1489. [PMID: 36442572 DOI: 10.1016/j.ijbiomac.2022.11.260] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/10/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
The synthesis of biodegradable hydrogel based on naturally available macromolecules is an important area of research. We synthesized new hydrogel using rice-cooked wastewater (starch), acrylamide, and 2-acrylamido-2-methylpropansulfonic acid in an aqueous medium. The synthesis approach is facile, low-cost, eco-friendly, and novel. The synthesized materials were characterized by scanning electron microscope, X-ray diffraction, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and Thermogravimetric analysis. The hydrogel exhibited maximum tap water absorbency (158.3 g/g) at pH 7, saline water absorbency (50 g/g), urea solution absorbency (141.2 g/g) at 24 h, and excellent water retention capability (47 wt% at 70 °C, 12 h, and 89 wt% at 30 °C, 24 h). Chili plants, mung beans, and pea seeds germinated and grew well in the hydrogel and hydrogel-mixed soil, respectively. The biodegradability study shows 34.6 % at 120 days in soil and 6.5 % at 30 days in the open air. These findings could entice agricultural development in dry soil.
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Affiliation(s)
- Haradhan Kolya
- Department of Housing Environmental Design, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea; Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
| | - Chun-Won Kang
- Department of Housing Environmental Design, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea; Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
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Kolya H, Jang E, Hashitsume K, Kang C. Effects of ammonium persulfate on coconut wood (
Cocos nucifera L
.) cellulose, hemicellulose, and lignin polymers: Improved sound absorption capacity. J Appl Polym Sci 2022. [DOI: 10.1002/app.52674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haradhan Kolya
- Department of Housing Environmental Design and Research Institute of Human Ecology, College of Human Ecology Jeonbuk National University Jeonju Republic of Korea
| | - Eun‐Suk Jang
- Department of Housing Environmental Design and Research Institute of Human Ecology, College of Human Ecology Jeonbuk National University Jeonju Republic of Korea
| | | | - Chun‐Won Kang
- Department of Housing Environmental Design and Research Institute of Human Ecology, College of Human Ecology Jeonbuk National University Jeonju Republic of Korea
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Kolya H, Hashitsume K, Kang CW. Ammonium persulfate treatment on carbohydrate polymers and lignin of wood improved sound absorption capacity. Int J Biol Macromol 2022; 205:626-637. [PMID: 35183601 DOI: 10.1016/j.ijbiomac.2022.02.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/03/2022] [Accepted: 02/13/2022] [Indexed: 12/18/2022]
Abstract
The rational design of sound absorption boards made of wood materials is an exciting area of research. This article describes a simple and inexpensive method to increase the sound absorptions capacity of Malas hardwood (Homalium foetidum Roxb.) using ammonium persulfate treatment. The reaction parameters such as the concentration of ammonium persulfate and reaction time were optimized. The results of X-ray photoelectron spectroscopy, X-ray diffraction, attenuated total reflectance-Fourier transforms infrared spectroscopy, and scanning electron microscopy demonstrated that ammonium persulfate could significantly affect carbohydrate polymers and lignin of wood by improving oxygen functionalities. The quantitative analysis of carbohydrate polymers (hemicellulose and cellulose) and lignin were evaluated. These changes in carbohydrate polymers and lignin enhanced the air permeability (83.6%) and average sound absorption coefficient at each frequency range 500-1000 Hz (2.6%), 1000-2000 Hz (4.9%), 2000-4000 Hz (17.4%), and overall 500-6400 Hz (20.8%) compared to the control samples. These results could be beneficial for new research and wood-based sound absorption materials to regulate the acoustic environment in houses.
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Affiliation(s)
- Haradhan Kolya
- Department of Housing Environmental Design, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea; Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Kazuharu Hashitsume
- Graduate Schools of Education, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane 690-8504, Japan
| | - Chun-Won Kang
- Department of Housing Environmental Design, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea; Research Institute of Human Ecology, College of Human Ecology, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
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