The present invention discloses a telescopic tube with a microcellular wall and a molding method thereof. The wall of the telescopic tube presents an asymmetric structure of an inner microcellular layer and an outer solid layer along the wall thickness direction; in the microcellular layer, the cell size is no more than 200 microns, and the cell density is more than 10⁶ cells/cm³. The molding method of the present invention realizes the simultaneous crosslinking and foaming of raw materials by strictly controlling the raw material ratio, process flow and process parameters. Crosslinking can help improve the gas-holding capacity of the melt and control gas escape, while foaming promotes the movement of molecules during the crosslinking process. The combined effect of the two realizes the precise control of the microcellular wall structure of the telescopic tube, thereby ensuring the uniformity and stability of the cells while achieving high cell density. On the basis of retaining excellent scalability, the compression resistance is enhanced, which meets the demand for high-performance products in various industries.

Country Code: CN

Application Number: CN202510737565.6