| 摘要 |
PROBLEM TO BE SOLVED: To provide a tube for fluid piping which has a chemical resistance to an internal fluid and an external environment and which has flexibility and a wear resistance. SOLUTION: A fluororesin having adhesion is made into an inner layer side, a nylon resin in which nylon 11 and nylon 12 are blended, is made into an outer layer side, and they are coextrusion molded. Although the nylon 11 has the adhesion and excellent flexibility, the property deteriorated in a wear resistance is found in the nylon 11. Although the nylon 12 has a high surface hardness and excellent wear resistance, the property deteriorated in the adhesion is found. But, since the tube for this fluid piping is constituted as described above, the tube has the chemical resistance to the internal fluid with the fluororesin having the adhesion of the inner layer side, the adhesion with the fluororesin by the nylon resin in which the nylon 11 of the outer layer side is blended with the nylon 12, and excellent flexibility and wear resistance. COPYRIGHT: (C)2006,JPO&NCIPI
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