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PMMA的技術特點是什么

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PMMA的粘度高,流動性稍差,因此必須使用較高的材料溫度和較高的注射壓力進行注射。注射溫度的影響大于注射壓力,但是注射壓力的增加有利于改善產品的收縮率。
PMMA的注入溫度范圍很寬,熔融溫度為160°C,分解溫度為270°C。因此,可以在寬范圍內調節材料溫度,并具有良好的可加工性。因此,為了提高流動性,可以從進樣溫度開始。但其抗沖擊性差,耐磨性不好,易刮擦,易脆,因此應提高模具溫度并改善凝結過程以克服這些缺陷。 。以上文獻若需轉載請備注出處:PBT樹脂 //shanglikaiguan.cn/

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