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Nguyen DM, Diep TMH, da Silva YF, Vu TN, Hoang D, Thuc CNH, Bui QB, Perré P. Three-dimensional pore characterization of poly(lactic)acid/bamboo biodegradable panels. Int J Biol Macromol 2022; 221:16-24. [PMID: 36067845 DOI: 10.1016/j.ijbiomac.2022.08.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 11/05/2022]
Abstract
In the context of novel environmental and energy regulations in construction (RE2020), biocomposites derived from bamboo fibers, bamboo powders, and biodegradable poly(lactic)acid polymer, all of which are renewable resources, have been investigated to meet the criteria of the novel regulations. In this work, the biocomposites were manufactured by twin-screw internal mixing at 170 °C for 5 min with a rotation speed of 60 rpm. The composites sheets were then shaped on a hydraulic press at 185 °C. Pore characterization including pore volume fraction, 3D-pore structure and morphology, and pore distribution of these materials were investigated using X-ray tomography combined with image processing (Avizo). The results show that when the bamboo fibers content is increased, an augmentation in the pore volume fraction and the number of large-volume pores could be observed. In turn, the bamboo powder-containing sheet had a significant increase in pore volume fraction, while a higher quantity of smaller pores, with uniform size, could be observed. The water absorption capacity of these composite increases with the increase of the amount of pore distribution, pore connection, and pore volume fraction. In addition, the orientation of the fibers in 3D observation, flexural mechanical properties, and thermal stability of the biocomposites are also reported in this study.
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Affiliation(s)
- Dang Mao Nguyen
- Laboratoire Innovation Matériau Bois Habitat (LIMBHA), Ecole supérieure du bois, 7 Rue Christian Pauc, 44306 Nantes, France
| | - Thi My Hanh Diep
- Center Research for Natural Resources Conservation, University of Science, Ho Chi Minh City, Viet Nam; Vietnam National University, Ho Chi Minh City 700000, Viet Nam
| | - Yuri Ferreira da Silva
- Laboratory of Surfaces Engineering, Department of Metallurgical and Materials Engineering, COPPE, Federal University of Rio de Janeiro, P.O. Box: 68505, 21945-970, Rio de Janeiro, RJ, Brazil; Université Paris-Saclay, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 3 rue des Rouges Terres, 51110 Pomacle, France
| | - Thi Nhung Vu
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Viet Nam
| | - DongQuy Hoang
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Viet Nam
| | - Chi Nhan Ha Thuc
- Vietnam National University, Ho Chi Minh City 700000, Viet Nam; Faculty of Materials Science and Technology, University of Science, Ho Chi Minh City 700000, Viet Nam
| | - Quoc Bao Bui
- Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
| | - Patrick Perré
- Université Paris-Saclay, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 3 rue des Rouges Terres, 51110 Pomacle, France
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