| abstract |
The present invention relates to a multilayer tube for transporting liquid chemicals containing an outermost layer and an innermost layer, the innermost layer containing a polyamide (A), an impact modifier (B) and a nanotube of carbon (C), where the number of projections each with a height of 5 µm or more and a longitudinal width of 20 µm or more, which are present on the surface of the innermost layer, is 2 or less per 1 mm2 of area. of surface; and the number of agglomerates, each with a longitudinal width of 5 µm or more, which are present in the cross-section of the innermost layer, is 15 or less per 1 mm2 of cross-sectional area. Also provided is a polyamide resin composition which constitutes the innermost layer of the multilayer pipe for transporting liquid chemicals. |