美国杜邦Zytel PA66 纯树脂牌号
PA66 101L 美国杜邦 一般通用级,有润滑性尼龙66，以改进机器进 料和脱模特性。 达到UL94V-2级,符合美国FDA食品安全标准的应用。
PA66 101F 美国杜邦 通用级,与101L相若,流动性好，适合薄壁和较长的部件设计。
PA66 103HSL 美国杜邦 射出成型，比101L更耐热的有润滑尼龙66。 在UL温度指数可达140℃，受热寿命**，电器性能良好。
PA66 103FHS 美国杜邦 快速结晶型，热稳定级，与103HSL相若, 更适合薄壁及较长的产品设计要求。
PA66 408L 美国杜邦 射出成型, 增韧级, 有润滑的尼龙66。适合玩具、体育、水上及户外用品。
PA66 408HS 美国杜邦 增韧性，同408L, 有更好的耐热稳定性，是种耐冲击性之材料。 PA66 1402S JPN旭化成 一般通用级，比普通的尼龙有更好的耐热稳定性。
PA66 ST801 美国杜邦 射出成型，超级韧性尼龙66。是种杰出的耐冲 击性材料，适合耐寒及户外多次冲击，低温性能**。
PA66 FR7025V0F 美国杜邦 射出成型，阻燃级尼龙66。可于0.75mm厚度达到UL94V-0之特性。
PA66(聚酰胺66或尼龙66)，同PA6相比，PA66更广泛应用于制造机械、汽车、化学与电气装置的零件，如齿轮、滚子、滑轮、辊轴、泵体中叶轮、风扇叶片、高压密封围、阀座、垫片、衬套、各种把手、支撑架、电线包内层等。
PA66塑胶原料为半透明或不透明乳白色结晶形聚合物，具有可塑性。密度1.15g/cm3。熔点252℃。脆化温度-30℃。热分解温度大于350℃。 连续耐热80-120℃,平衡吸水率2.5%。能耐酸、碱、大多数无机盐水溶液、卤代烷、烃类、酯类、酮类等腐蚀，但易容于苯酚、甲酸等极性溶剂。具有优良的耐磨性、自润滑性，机械强度较高。但吸水性较大，因而尺寸稳定性较差。
PA66 is a high mechanical strength and widely used variety in PA series. Because of its high crystallinity, its rigidity and heat resistance are high. PA66 has high melting point in polyamide. It is a semi-crystalline-crystalline material. PA66 also maintains high strength and stiffness at higher temperatures. PA66 still has hygroscopicity after molding, and the degree of hygroscopicity mainly depends on the material composition, wall thickness and environmental conditions. The influence of hygroscopicity on geometric stability must be considered in product design. Various modifiers are often added to improve the mechanical properties of PA66. Glass is a common additive, sometimes added to improve the impact resistance of synthetic rubber, such as EPDM and SBR. PA66 is less viscous and therefore has good (but not as good) mobility. This property can be used to machine very thin components. Its viscosity is sensitive to changes in temperature. The shrinkage rate of Pa66 was 1% ~ 2% , and the shrinkage rate could be reduced to 0.2% ~ 1% by adding glass fiber additive. The difference of shrinkage rate between the flow direction and the vertical direction of the flow direction is large.