| 摘要 |
PURPOSE: A high-strength polyvinyl chloride resin is provided to obtain excellent physical properties and mechanical properties such as tensile strength, etc, and to improve durability and marketability of products when used as a fluid pipe or a connection pipe. CONSTITUTION: A polyvinyl chloride resin composition comprises 70-90 weight% of polyvinyl chloride resin, 2-3 weight% of stabilizer, and 8-27 weight% of gypsum. The particle size of the gypsum is 40-200 mesh. The stabilizer is Zn-based compound. The resin composition additionally comprises one or more additives selected from a group consisting of a colorant, filler and antistatic agent. The fluid pipe is manufactured from the composition. [Reference numerals] (AA) Putting raw material hopper in; (BB) Measuring raw material; (CC) Putting additives in; (DD) Mixer; (EE) Cooler; (FF) Storage hopper; (GG) Extrusion molding; (HH) Cooling; (II) Cooler; (JJ) Marking; (KK) Cutting
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