PA66 FR50中文名称聚酰胺，俗称尼龙双6，系结晶性热塑性工程塑料。
PA66 优点：1、具高抗张强度；2、耐韧、耐冲击性特优；3、自润性、耐磨性佳、耐性优；4、低温特性佳；6、具自熄性。
1、电子电器：连接器、卷线轴、计时器、护盖断路器、开关壳座、插座、接头、垫圈等；
2、汽车：散热风扇、门把、油箱盖、进气隔栅、水箱护盖、灯座、滤油器、变速杆等；
3、工业零件：椅座、自行车输框、鞋底座、纺织梭、踏板、滑轮、电动工具等；
4、其他：电动工具、护罩、风叶、齿轮、机床附件、运动器材、玩具制品、扎带等。
PA66 FR50功能特色：PA66的熔点：265℃；它是一种半晶体-晶体材料。PA66在较高温度也能坚持较强的强度和刚度。PA66在成型后依然具有吸湿性，其程度首要取决于材料的组成、壁厚以及条件。在产品设计时，一定要考虑吸湿性对几何性的影响。PA66的粘性较低，因而流动性很好（但不如PA6）。这个性质能够用来加工很薄的元件。它的粘度对温度改变很灵敏。PA66的缩短率在1%~2%之间，参加玻璃纤维添加剂能够将缩短率到0.2%~1% 。PA66对许多溶剂具有抗溶性，但对酸和其它一些氯化剂的抵抗力较弱。
PA66 FR50 dupont automotive applications :PA66 replaces metal fortargeted applications, all automotive fuel tanks consumed 172,000tons in 2011. BASF BASF Ultramid PA66 has provided many excellentproducts for the automotive industry, and the continued promotionof available materials is key in the automotive industry. Thechallenge facing the conference is just to start as the car-owningpopulation continues to grow, so such efforts are needed to help usmove towards a more energy-efficient future. One of the dependenceon fossil fuels is to use lightweight, high-performance moldedautomotive plastics instead of heavier metal parts to make carsmore efficient. Put simply: plastic helps make vehicles lighter.For every 10 percent of weight, fuel economy saves 5-7 percent atthe pump, and thus produces fewer carbon dioxide emissions. Thedupont high-performance polymer team put its strength andcollective problem-solving into the possible work of nylon, inparticular Zytel USA dupont PA66, a dupont product that has provenits value in the 1973-1974 us oil shortage, when it was used invehicles with engine weight to achieve gasoline mileage.
