Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber
To investigate the possibility of using bamboo-bundle laminated veneer lumber (BLVL) as a cooling tower packing material, the water absorption rates, thickness swelling rates, and flexural properties of three different composite materials were studied. The BLVL was combined with either 12% or 24% ph...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2015-12-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_1359_Li_Water_Absorption_Bamboo_Bundle_Lumber |
| _version_ | 1819059221429223424 |
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| author | Haidong Li Yu Xian Jianchao Deng Haitao Cheng Fuming Chen Ge Wang |
| author_facet | Haidong Li Yu Xian Jianchao Deng Haitao Cheng Fuming Chen Ge Wang |
| author_sort | Haidong Li |
| collection | DOAJ |
| description | To investigate the possibility of using bamboo-bundle laminated veneer lumber (BLVL) as a cooling tower packing material, the water absorption rates, thickness swelling rates, and flexural properties of three different composite materials were studied. The BLVL was combined with either 12% or 24% phenol formaldehyde resin (PF), and the moso bamboo strips were exposed to water baths at three different temperatures (45, 65, and 85 °C) for 30 d. After the aging treatments, the 24%-BLVL samples showed lower water absorption rates and better bending properties than the other two composites. The temperature was found to have a significant effect on the modulus of rupture (MOR), modulus of elasticity (MOE), and the thickness swelling rate. As the temperature increased, the swelling rate and the rate of weight gain increased and the MOE and MOR decreased. According to the activation energies for swelling calculated from the Arrhenius-type plots, compared with the 24%-BLVL (22.95 kJ·mol-1) and the moso bamboo strips (12.69 kJ·mol-1), the effect of temperature on the swelling rate was greatest for the 12%-BLVL (24.15 kJ·mol-1). Results showed that the BLVL material is a promising candidate for a novel cooling tower packing material. |
| first_indexed | 2024-12-21T14:07:39Z |
| format | Article |
| id | doaj.art-b8d2192f381c44edbf7b9311b30f7db8 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-21T14:07:39Z |
| publishDate | 2015-12-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-b8d2192f381c44edbf7b9311b30f7db82022-12-21T19:01:08ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-12-011111359136810.15376/biores.11.1.1359-1368Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer LumberHaidong Li0Yu Xian1Jianchao Deng2Haitao Cheng3Fuming Chen4Ge Wang5International Centre For Bamboo And Rattan; China International Centre for Bamboo and Rattan, Beijing, P.R. China; China International Centre for Bamboo and Rattan, Beijing, P.R. China; China International Centre for Bamboo and Rattan, Beijing, P.R. China; China International Centre for Bamboo and Rattan, Beijing, P.R. China; China International Centre for Bamboo and Rattan, Beijing, P.R. China; ChinaTo investigate the possibility of using bamboo-bundle laminated veneer lumber (BLVL) as a cooling tower packing material, the water absorption rates, thickness swelling rates, and flexural properties of three different composite materials were studied. The BLVL was combined with either 12% or 24% phenol formaldehyde resin (PF), and the moso bamboo strips were exposed to water baths at three different temperatures (45, 65, and 85 °C) for 30 d. After the aging treatments, the 24%-BLVL samples showed lower water absorption rates and better bending properties than the other two composites. The temperature was found to have a significant effect on the modulus of rupture (MOR), modulus of elasticity (MOE), and the thickness swelling rate. As the temperature increased, the swelling rate and the rate of weight gain increased and the MOE and MOR decreased. According to the activation energies for swelling calculated from the Arrhenius-type plots, compared with the 24%-BLVL (22.95 kJ·mol-1) and the moso bamboo strips (12.69 kJ·mol-1), the effect of temperature on the swelling rate was greatest for the 12%-BLVL (24.15 kJ·mol-1). Results showed that the BLVL material is a promising candidate for a novel cooling tower packing material.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_1359_Li_Water_Absorption_Bamboo_Bundle_LumberCooling tower packingBamboo-bundle laminated veneer lumberWater absorptionTemperatureFlexural properties |
| spellingShingle | Haidong Li Yu Xian Jianchao Deng Haitao Cheng Fuming Chen Ge Wang Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber BioResources Cooling tower packing Bamboo-bundle laminated veneer lumber Water absorption Temperature Flexural properties |
| title | Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber |
| title_full | Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber |
| title_fullStr | Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber |
| title_full_unstemmed | Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber |
| title_short | Evaluation of Water Absorption and its Influence on the Physical-Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber |
| title_sort | evaluation of water absorption and its influence on the physical mechanical properties of bamboo bundle laminated veneer lumber |
| topic | Cooling tower packing Bamboo-bundle laminated veneer lumber Water absorption Temperature Flexural properties |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_1359_Li_Water_Absorption_Bamboo_Bundle_Lumber |
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