硬膠Hard rubber),是石油產品,易燃日常用品塑膠物料之一,是1940年代開發的塑膠物質,質料硬,不耐用,容易出裂隙。含三到四成。經第二次世界大戰後,改良成為質地較軟,硬膠改稱「塑膠」。

應用

它經常被用作生產保齡球電插頭化妝品包裝和各種塑膠產品。硬膠的種類包括如PPPSSANABSPET和硬質PVC等。

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