*2.3. Preparation of BF/CNFs Preform Reinforced PBS Composite*

In preparing the FRP sample, a bamboo fiber preform and a PBS pellet were directly impregnated using a hot press. At this time, the process temperature was set at 120 ◦C, and the pressure was fixed at 5 MPa. The PBS pellet and bamboo fiber preform were put in a ratio of 5:5 in reference to the total weight. The FRP composites were named PBS-BF/CNFn. Subsequently, distilled water was used to wash off unabsorbed dye molecules present in the BF/CNF, and an image of the BF/CNF preform was obtained.
