TOPAS® 8007F-600 环烯烃共聚物 Topas Advanced Polymers, Inc. 产品说明: Product Description TOPAS 8007F-600 is a new robust film extrusion grade designed for blending with polyethylene (PE). It is an improved clarity amorphous resin with high stiffness, moisture barrier, chemical resistance, thermoformability and purity for food and general purpose applications. It is used in blends in both cast and blown processes, and in monolayer and multilayer products. Leading film applications include twist wrap, forming webs, protective packaging, shrink films and labels, and easy tear packaging. Industrial uses include formed PE and PP sheet products. For property enhancement at elevated temperatures, higher glass transition temperature (Tg) grades of TOPAS are recommended. Selected Applications Forming films (header bags, etc.) Protective packaging Shrink films and labels Twist films Decorative sheet Food packaging Food contact Leading Attributes Clarity, forming, barrier, purity, halogen-free Stiffness for downgauging, improved forming High shrink, low stress, gloss, toughness Outstanding deadfold, clean cutting Stiffness, chemical resistance, forming, even draw Not manufactured with BPA, phthalates, or halogens Broad regulatory compliance Related Grades for Packaging and Film Extrusion TOPAS 8007F-04 - ultimate clarity extrusion grade TOPAS 8007F-400 - robust extrusion grade especially for PE blends 耐冲击COC--COC加工成型:COC可用成型、吹塑挤出成型,中空成型,压延成型等多种方式加工。COC易吸湿,因此成型前 一定要严格进行干燥处理,一般是在110度的温度下,对材料干燥4-6小时左右。这样有利于改善制品外观。如果采用注塑成型在对制品冷却阶段要快速冷却,这样有利于增加制品的透明度,但要注易制品开裂现象。COC在注塑成型时,料简后部温度一般为 240度至270度左右中部温一般为250至310度之间刺篇后部温度为260度至310度左右。注嘴温度在250度至310 之间。模具温度应为110至145度左右,COC理想加工温度一般在260度至310之间。注塑压力在50MPa至110MPa。速度一般选中等偏快。保压压力一般在30到60MPa之间。COC挤出成型时选用单螺杆机,若用双螺杆机一定要保证有足够的压力和加热。特别是大件制品,若温度太低,压力不足,COC大件制品易开裂。