Carbonization drying treatment is a common technique to change the appearance and characteristics of bamboo. In the process, bamboo undergoes pyrolysis of organic compounds such as lignin, converting them into substances such as carbon and tar.
Temperature and treatment time were considered to be the main factors affecting the color of bamboo during carbonization. Higher temperatures and longer processing times result in a darker color, usually appearing as black or dark brown. This is because higher temperatures favor the decomposition of organic compounds, resulting in more carbon and tar substances accumulating on the bamboo surface.
On the other hand, lower temperatures and shorter processing times produce lighter colors. This is because the lower temperature and shorter duration were not enough to completely decompose the organic compounds, resulting in less carbon and tar attached to the bamboo surface.
In addition, the carbonization process also changes the structure of the bamboo, which affects the reflection and absorption of light. Normally, components such as cellulose and hemicellulose in bamboo decompose at high temperature, which increases the thermal conductivity of bamboo. Therefore, bamboo absorbs more light and takes on a deeper color. Conversely, under lower temperature treatment, these components decompose less, resulting in increased light reflection and lighter color.
In summary, the different colors of bamboo strips after carbonization and drying treatment are affected by factors such as temperature, treatment time, material decomposition and bamboo structure. This treatment creates a variety of visual effects on the bamboo, increasing its value in applications such as interior decoration and furniture manufacturing.
Post time: Aug-22-2023
