論文
非晶性および結晶性樹脂の射出発泡体に及ぼす制御因子の影響
2004 年 16 巻 11 号 p. 735-740
詳細
2004 年 16 巻 11 号 p. 735-740
In this study the effects on cell structure of plastics foamed during injection molding due to differences in resin viscoelasticity were investigated. Amorphous polystyrene resin and semicrystalline low density polyethylene resin, with widely different viscoelasticity behaviors, were used as examples. Injection velocity, mold temperature, retention time and screw shape were selected as control factors that could affect cell nucleation and growth during injection molding. Mold temperature was found to strongly affect the resin flow and the resultant foam cell structure.
