| 摘要 |
[Problem] To provide a fluororesin tube having excellent characteristics such as the heat resistance, weather resistance, chemical resistance, peeling properties, and low dielectric properties that are specific to fluororesins in addition to having an inner surface that has high adhesiveness with respect to various materials, especially silicone rubber. [Solution] A fluororesin tube in which vinylalkoxysilane is introduced into a plasma excitation gas, the inner surface of the tube is subjected to plasma treatment, and the arithmetic average roughness Ra of the inner surface of the tube that has been subjected to plasma treatment and the average length RSm of a roughness curve element satisfy Ra < 0.08 µm and RSm < 25 µm. |
