| 摘要 |
PURPOSE:To provide an airtight shrinkable tube fitted in a dry cell with structural elements such as insulation and liquid leakage prevention as well as suitability for the requirements of a dry cell manufacturing device such as properties of cutting, opening and lubricity, without the necessary of using polyvinyl chloride which generates chlorine gas endangering environments. CONSTITUTION:The subject shrinkable tube for internal fitting in a dry cell is molded using a blended material of 100 parts of polyethyleneterephthalate, 2 to 20 parts of polymethylmethacrylate and 10 parts max. of lubricant. |
