Preparation Of Evergreen Bamboo And Its Application In Tea Furniture

Bamboo is loved by people because of its unique skin color.However,bamboo green is susceptible to the influence of external temperature and humidity,and the deterioration phenomenon of fading appears.Therefore,researchers use metal ions such as copper and chromium to replace magnesium ions in chlorophyll porphyrin rings to prepare evergreen bamboo with excellent color fastness and light resistance,but there are problems such as environmental pollution.In this study,Phllostachys edulis was used as the research object to optimize the traditional metal ion replacement process and explore the basic properties of evergreen bamboo after optimization.The process parameters of evergreen bamboo prepared by sodium copper chlorophyll were optimized by response surface test,and the basic properties of evergreen bamboo such as microstructure,stability and biodegradability were investigated.The main research work and conclusions are as follows:(1)Explore the process of preparing evergreen bamboo using copper-zinc ion solution.The concentration of the treatment agent had a significant impact on the chroma value of the bamboo’s surface.By treating evergreen bamboo for 90 min at a temperature of 95℃ and a 3%copper-zinc ion solution concentration,remarkable color fastness was achieved,with an a*value of-9.76.Additionally,the surface color of the bamboo remained unchanged after 50 days of ultraviolet exposure,proving its excellent light resistance.(2)The study focused on the preparation technology of evergreen bamboo using sodium copper chlorophyllin.The treatment time,temperature,and concentration of the treatment agent were selected through a single factor test,and the process was optimized using response surface methodology.The optimum conditions obtained were a treatment time of 90 min,treatment temperature of 90℃,and treatment agent concentration of 3%.These conditions resulted in the highest color fastness and an a*value of-24.22 for the evergreen bamboo.(3)The basic properties and microstructure of evergreen bamboo treated with sodium copper chlorophyll were studied.After 30 days of light exposure,the color value a*increased to-0.5,and the color value a*increased to-18.21,indicating that evergreen bamboo has excellent light resistance.In the range of 125-200℃,the heat resistance of evergreen bamboo was tested.The results showed that:when the temperature was 175℃,the a*value of evergreen bamboo increased,and when the temperature was 200℃,the colorimetric value a*decreased,and the surface color of evergreen bamboo became darker but still kept obvious green.The biodegradability of evergreen bamboo was tested,and it was found that the weight loss rate of evergreen bamboo reached 27%within 30 days,which indicates that evergreen bamboo can biodegrade in soil.X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM)and Fourier infrared spectroscopy(FTIR)were used to analyze the microscopic morphology and chemical composition of bamboo green on the surface of evergreen bamboo.The results showed that sodium copper chlorophyll was uniformly distributed in the thin wall cells of bamboo,and combined with the functional groups inside the bamboo to form a stable structure,which gave the bamboo long-term light stability.(4)The design properties and basic properties of evergreen bamboo were analyzed,and its suitability in tea furniture was explored to complete the design application.The design takes evergreen bamboo and bamboo strips as raw materials,and uses the analytic hierarchy process to determine the design direction and carry out the scheme design and production.