Shanghai Daoqin Plastics Co., Ltd.

PMMA polymethyl methacrylate (PMMA) typical applications scope/range automotive industrial （信号灯 equipment, table/sheet and other ）, industry （储血 container and other ）, industrial application （影碟, light dispersion device), day use product （饮 material 杯, tool and other ）. injection molding parts 模 process conditions: drying 处理: PMMA tool has wet property therefore processing front drying is must. drying conditions is 90C, 2~4 small 时. temperature degree: 240~270C. injection molding parts mold temperature degree: 35~70C. injection speed degree: in and other chemical and material features: PMMA tool has excellent optical features and resistant gas 侯变化 features. light property high 达92%. PMMA products tool has very low di 折射, especially combined made as and other. PMMA tool has room temperature creep features. negative add large, time growth, can 导致应 force cracking phenomenon. PMMA tool has relatively good impact resistant features. shrinkage rate in 0.5% left right.