EFFECT OF PRESSING PARAMETERS ON PHYSICAL AND MECHANICAL PROPERTIES OF BAMBOO ORIENTED STRAND BOARD FROM Dendrocalamus barbatus
DOI:
https://doi.org/10.70169/VJFS.1196Keywords:
Bamboo oriented strand board, physical and mechanical properties, thermal pressing technology parametersAbstract
The paper presents the research results on the effects of pressing temperature and time on the physical and mechanical properties of Bamboo oriented strand board from Dendrocalamus barbatus. Melamine Urea Formaldehyde (MUF) adhesive was used at a resin content of 13%. The boards were manufactured under a pressing pressure of 2.5 MPa, with three levels of pressing temperature (140, 150, and 160 °C) and three pressing times (10, 12, and 14 minutes). The results showed that the board density did not vary significantly among pressing conditions; however, the physical and mechanical properties such as thickness swelling, modulus of rupture (MOR), modulus of elasticity (MOE), and internal bond strength (IB) differed markedly. The optimal properties were obtained at a pressing temperature of 150 °C and a pressing time of 14 minutes, with a density of 0.75 g/cm³, thickness swelling of 9.48%, MOR of 57.39 MPa, MOE of 7,838.45 MPa, and IB of 0.45 MPa. These results indicate that Bamboo oriented strand board product from Dendrocalamus barbatus meets the requirements of TCVN 13179:2020 standard for load-bearing OSB board used in dry conditions (OSB type LB - REG).
References
1. Febrianto, F., Sahroni, W., Hidayat, E. S., Bakar, G.-J., Kwon, J.-H., Kwon, S.-I., Hong, N.-H., & Kim, N.-H. (2012). Properties of oriented strand board made from Betung bamboo (Dendrocalamus asper (Schultes. f) Backer ex Heyne). Wood Science and Technology, 46, 53 - 62.
2. Feng, M. (2013). Research on the impact of physical mechanical properties of structure strip plybamboo condition on hot - pressing. Beijing Forestry University, Beijing, China.
3. Li, H.-t., Su, J.-w., Zhang, Q.-s., Deeks, A. J., & Hui, D. (2015). Mechanical performance of laminated bamboo column under axial compression. Composites Part B: Engineering, 79, 374 - 382.
4. Malanit, P., Barbu, M. C., & Frühwald, A. (2011). Physical and mechanical properties of oriented strand lumber made from an Asian bamboo (Dendrocalamus asper Backer). European Journal of Wood and Wood Products, 69(1), 27 - 36.
5. Nguyễn Văn Định, Hoàng Văn Phong, Cao Chí Công, Đỗ Thị Hoài Thanh, & Nguyễn Trọng Nghĩa (2024). Ảnh hưởng của loại keo và hàm lượng keo đến tính chất cơ học, vật lý của ván dăm định hướng từ luồng (Dendrocalamus barbatus). Tạp chí Khoa học Lâm nghiệp, Số chuyên san/2024: 3 - 12.
6. Những thách thức trong việc phát triển chuỗi giá trị tre luồng tỉnh Thanh Hóa. (n.d.). Truy cập từ https://tapchicongthuong.vn/nhung-thach-thuc-trong-viec-phat-trien-chuoi-gia-tri-tre-luong-tinh-thanh-hoa-103427.htm
7. Semple, K., Zhang, P., & Smith, G. (2017). Hybrid oriented strand boards made from Moso bamboo (Phyllostachys pubescens Mazel) and Aspen (Populus tremuloides Michx.): species - separated three - layer boards. European Journal of Wood and Wood Products, 73, 527 - 536.
8. Shangguan, W., Zhong, Y., Xing, X., Zhao, R., & Ren, H. (2014). 2D model of strength parameters for bamboo scrimber. BioResources, 9(4), 7073–7085.
9. Sumardi, I., Ono, K., & Suzuki, S. (2007). Effect of board density and layer structure on the mechanical properties of bamboo oriented strandboard. Journal of Wood Science, 53(6), 510 - 515.
10. Sumardi, I., & Suzuki, S. (2014). Dimensional stability and mechanical properties of strandboard made from bamboo. BioResources, 9(1), 1159 - 1167.
11. Sun, Y., Jiang, Z., Liu, H., Sun, Z., & Fang, C. (2019). The bending properties of bamboo strand board I-beams. Journal of Wood Science, 65(1), 50.
12. Sun, Y., Zhang, Y., Huang, Y., Wei, X., & Yu, W. (2020). Influence of board density on the physical and mechanical properties of bamboo oriented strand lumber. Forests, 11(5), 567.
13. TCVN 5694: 2014. Ván gỗ nhân tạo - Xác định khối lượng riêng.
14. TCVN 13179: 2020. Ván gỗ nhân tạo - Ván dăm định hướng (osb) - Định nghĩa, phân loại và yêu cầu kỹ thuật.
15. TCVN 12445: 2018. Ván gỗ nhân tạo - Xác định độ trương nở chiều dày sau khi ngâm trong nước.
16. TCVN 12446: 2018. Ván gỗ nhân tạo - Xác định môđun đàn hồi khi uốn và độ bền uốn.
17. TCVN 12447: 2018. Ván gỗ nhân tạo - Xác định độ bền kéo vuông góc với mặt ván.
18. TCVN 11903:2017. Ván gỗ nhân tạo - Lấy mẫu và cắt mẫu thử
19. Verma, C., & Chariar, V. (2012). Development of layered laminate bamboo composite and their mechanical properties. Composites art B: Engineering, 43(3), 1063 - 1069.
20. Yu, Y., Zhu, R., Wu, B., Hu, Y. A., & Yu, W. (2015). Fabrication, material properties, and application of bamboo scrimber. Wood Science and Technology, 49, 83 - 98.
