HIGH-DENSITY POLYETHYLENE TUBE

• Main Authors: NAGATA JUNYA, TERAO YOSHITOMO, HONBO MICHIKO
• Format: Patent
• Language: English; Japanese
• Published: 25.07.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR POWER PLANT; PERFORMING OPERATIONS; PHYSICS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

To provide a high-density polyethylene tube that is protected against degradation due to an external factor such as radiation rays.SOLUTION: A high-density polyethylene tube 1 has a body part 10 mainly made of high-density polyethylene with a density of 0.940 g/cmor more and 0.980 g/cmor less, and a barrier material 20 that covers the external surface of the body part 10 and contains an ethylene-vinyl alcohol copolymer resin. The high-density polyethylene tube 1 is used, for example, for transportation of fluid containing radioactive material, and transportation of the fluid under a high radiation dose.SELECTED DRAWING: Figure 1 【課題】放射線等の外的因子による劣化が抑制される高密度ポリエチレン管を提供する。【解決手段】高密度ポリエチレン管１は、密度が０．９４０ｇ／ｃｍ３以上０．９８０ｇ／ｃｍ３以下の高密度ポリエチレンを主成分とする本体部１０と、本体部１０の外表面を覆い、エチレン・ビニルアルコール共重合樹脂を含んでなるバリア材２０と、を備える。高密度ポリエチレン管１は、例えば、放射性物質を含む流体の輸送、高放射線量下での流体の輸送に用いられる。【選択図】図１