Drop weight impact tester was used to accurately measure the bending impact resistance of various parts of Phyllostachys edulis, commonly known as moso bamboo, with a growth cycle of 3-8 years. Cellulose crystallinity in the bottom (B), middle (M) and top (T) of bamboo at different ages was calculated using peak height analysis in X-ray diffraction. Heatmap of Spearman correlation analysis was used to represent the correlation between chemical composition and impact mechanics. The breaking load (BL), fracture energy (FE) and impact deflection (ID) of 3-8-yearold bamboo were found to be in the range of ~670-2120 N, ~5.17-15.55 J, and ~3.60-~17.76 mm, respectively. As the growth period of bamboo rises, the cellulose crystallinity at the B and T decreases first and then increases, while that for the M increases first and then remains stable. Similarly, the bending impact performance of bamboo was found to become stable with its growth and age. The flexural impact and toughness of the 4-year-old bamboo base material were better than other specimens. The enhancement in the bending impact properties of bamboo at different growth periods was influenced by the lignin content, while the value of FE was mainly positively correlated with ash, cold and hot water extracts and benzyl alcohol content. However the content of holocellulose and pentosan, air-dry density and, base density negatively influenced the FE. With the change in the height of the bamboo, the correlation between its impact mechanical properties and chemical composition gradually decreased. This study provides data support and theoretical basis for the age-appropriate thinning and application of moso bamboo.
Bamboo plants are fast-growing, quickly produce usable material, and are an abundant resource. Bamboo is an excellent, natural, and renewable material. It has a long history of application in human life, industrial manufacturing, cultural industries, and other fields. The warehousing of bamboo and its finished products is an emerging industry with much potential. A reasonable, stable, and orderly warehouse could be an effective solution for the sustainable management, seasonal harvesting, and raw material stability issues. In addition, the warehouse plays an important role in the processing of raw materials, reserve logistics, keeping a robust and real-time supply for downstream products. This is of great significance for alleviating problems associated with Chinese timber safety and for improving the quality of life. This paper focuses on warehousing experience in grain and coal fields, reviews the common material processing and preservation measures of bamboo, analyzes advantages and developmental prospects of bamboo warehousing, and explores and suggests appropriate storage methods, technical systems, and application models. It is expected to provide technical guidance for construction in the bamboo storage industry, and to supply ideas and suggestions for the modern development of the bamboo industry.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.