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洽談Q Q:1362174071 Makrolon 2608 MVR (300 °C/1.2 kg) 12 cm3/10 min; medical devices; suitable for ETO and steam sterilization at 121 °C; biocompatible according to many ISO 10993-1 test requirements; medium viscosity Makrolon 2652 MVR (300 °C/1.2 kg) 12 cm3/10 min; food contact quality; medium viscosity; easy release; complies with the BfR (formerly BgVV)- recommendations IX, XI and XLII abbr. the EN 71 part 3; toys Makrolon 2656 MVR (300 °C/1.2 kg) 12 cm3/10 min; food contact quality; medium viscosity; easy release Makrolon 2658 MVR (300 °C/1.2 kg) 12 cm3/10 min; medical devices; suitable for ETO and steam sterilization at 121 °C; biocompatible according to many ISO 10993-1 test requirements; medium viscosity; easy release Makrolon 2665 MVR (300 °C/1.2 kg) 12 cm3/10 min; UL 94V-2/1.5 mm and 3.0 mm; medium viscosity; easy release Makrolon 2665 MAS071 MVR (300 °C/1.2 kg) 12 cm3/10 min; flame retardant; UL 94V-2/1.5 mm and 3.0 mm; medium viscosity; easy release Makrolon 2667 MVR (300 °C/1.2 kg) 12 cm3/10 min; flame retardant; UL 94V-2/1.5 mm and 3.0 mm; medium viscosity; UV stabilized; easy release Makrolon 2800 MVR (300 °C/1.2 kg) 10 cm3/10 min; general purpose; medium viscosity PC耐熱,抗沖擊,阻燃,在普通使用溫度內(nèi)都有良好的機(jī)械性能。同性能接近聚甲基丙烯酸甲酯相比,聚碳酸酯的耐沖擊性能好,折射率高,加工性 能好,不需要添加劑就具有UL94 V-0級(jí)阻燃性能。但是聚甲基丙烯酸甲酯相對(duì)聚碳酸酯價(jià)格較低,并可通過(guò)本體聚合的方法生產(chǎn)大型的器件。隨著聚碳酸酯生產(chǎn)規(guī)模的日益擴(kuò)大,聚碳酸酯同聚甲 基丙烯酸甲酯之間的價(jià)格差異在日益縮小。聚碳酸酯的耐磨性差。一些用于易磨損用途的聚碳酸酯器件需要對(duì)表面進(jìn)行特殊處理。 PC塑膠原料的吸水率較大,加工前一定要預(yù)熱干燥,純PC干燥120℃,改性PC一般用110℃溫度干燥4小時(shí)以上。干燥時(shí)間不能超過(guò)10小時(shí)。一般可用對(duì)空擠出法判斷干燥是否足夠。再生料的使用比例可達(dá)20%。在某些情況下,可的使用再生料,實(shí)際份量要視制品的品質(zhì)要求而定。再生料不能同時(shí)混合不同的色母粒,否則會(huì)嚴(yán)重?fù)p壞成品的性質(zhì)。