Exploitation and application of bamboo fiber-reinforced filament-wound pressure pipe

As urbanization process speeds up, the demand for pipeline have been increased year by year. Nowadays, the raw material used for producing domestic traditional pipeline(cement duct, steel tube, plastic pipe, etc.) have been non-renewable resource, and some issues concerning high energy consumption and pollution have been raised during the process of manufacture. Therefore, it would be of great social significance in the urbanization development if the bamboo fiber-reinforced filament-wound pressure pipe(BFP), which exhibits advantages in low carbon emission, environmental-friendly, energy saving and resource regeneration, has been exploited for replacing part of traditional pressure pipes. BFP is a kind of novel biomass pipelines with moderate compressive properties. For the manufacture of such pipeline, bamboo fibrous material acts as reinforcing material, while synthetic resin acts as adhesive. Besides, the reciprocating mechanical winding molding technology is adopted. In this paper, the manufacture process of BFP were introduced from the aspects of raw material, forming process, pipe's structure and function, and its main performance was presented. In addition, the similarities and differences were analyzed towards overall performance between traditional pipeline and the novel biomass pipeline. The process and equipments for manufacturing BFP have been mature gradually in recent years, and pilot-scale product line has been established; BFP has been applied for pilot plant testing in Xinjiang, Zhejiang and Heilongjiang, and it has performed sound application effect; one large-scale industrialized production line has been in operation in Xiangyang, Hubei Province. The benefit analysis of BFP was also presented in terms of economic benefit, ecological benefit and social benefit, as well as the comparison with traditional pipeline. Finally, existing issues were raised towards the development and application of BFP, and future research directions were proposed as follows. The processing technology of fibrous raw material calls for improvement, and high-performance adhesive needs to be developed, as well as efficient winding technology and automatic winding equipments. It was suggested that the quantity of performance evaluation index be increased, and laminated conglutination ring-interface characterization techniques be explored, aiming at optimizing performance evaluation system. To ensure BFP's product quality and promote market standardization, relevant standards and specifications should be established. © 2016, Editorial Department of Scientia Silvae Sinicae. All right reserved.