Abstract
The bamboo fiber-based composite (BFBC) has high-performce in terms of mechanical properties and dimensional stability. In this study, BFBCs were prepared with different hot-pressing temperatures (150 °C, 160 °C, 170 °C, 180 °C, 190 °C, and 200 °C) and designed with different densities (1.05 g/cm3, 1.10 g/cm3, 1.15 g/cm3 and 1.20 g/cm3), and their selected properties were evaluated. Temperature affected BFBC performance, which, with a general increase in temperature, showed a decrement in mechanical properties and an improvement in dimensional stability. Holocellulose content significantly decreased, and the color of BFBC became darker with the increasing of the press temperature. As the density of BFBC increased, the modulus of elasticity (MOE) significantly increased from 23.09 GPa to 27.01 GPa with the increase in temperature. The thickness swelling ratio (TSR), width swelling ratio (WSR) and water absorption ratio (WAR) declined by more than 30% with the increase in density. Overall, the results of this study provide a theoretical basis and a source of technical support to promote the design, application, and popularization of BFBC in different fields.
Highlights
Bamboo, as a renewable natural resource, is widely used in many fields because of its fast-growing rate and high strength, and it is a promising material to utilize instead of imported wood
The hot press temperature in the range 190–200 ◦ C significantly reduced the compressive strength to 75.31 MPa
The highest reduction of compressive strength was approximately 22.77% when the temperature changed from 190–200 ◦ C, whereas the reduction was less than 5% for every 10 ◦ C decrease from 150–190 ◦ C
Summary
As a renewable natural resource, is widely used in many fields because of its fast-growing rate and high strength, and it is a promising material to utilize instead of imported wood. The utilization of bamboo as a raw material for structural products has been researched, at present, in such applications as laminated bamboo lumber [1], bamboooriented strand board [2,3], and bamboo plywood [4,5]. These results showed that the bamboo products have excellent performance including high strength and easy processing, and could be applied as non-structural materials, such as bamboo furniture and indoor flooring, and as heavy load structural materials, such as beams and columns. Previous studies focused on the significant effects of moisture content on the mechanical properties and dimensional stability of bamboo fiber-reinforced composite [7,8], the effects of thermal treatment on the improvement of the surface properties and chemical properties of bamboo scrimber [9,10,11], the effects of steam treatment of oriented fiber bamboo mat (OBFM) on chemical properties [12], and the effects of different molecular weights of phenol-formaldehyde resin on the infiltration of different bamboo cells of BFRC [13]; staining treatment with acid dye on mechanical and physical properties [14]; hot-and cold-pressing process on properties of BFBC [15], and the basic properties of different bamboo species were investigated [16]
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