| 摘要 |
A method for producing an environment protective foamed thermoplastic resin polymer uses an extruder installed inside with a helical rod driven to rotate. The extruder has its interior formed with a feeding section, a melting section, a mixing section and a heating-shaping section. The method includes a plurality of steps, in which thermoplastic resin is heated, melted in the melting section and moved into the mixing section, and hollow expansion balls are fed into the extruder to be evenly mixed with the melted thermoplastic resin. Then the hollow expansion balls are slightly heated and inflated, and after moved into the heating-shaping section, the balls are heated at foaming temperature, foamed and inflated. After injected through a nozzle, the melted thermoplastic resin and the hollow balls together become a foamed thermoplastic resin polymer with a preset thickness and shape.
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