美国首诺PA66 VYDYNE 25WSP

PA66塑胶原料为半透明、白色或黑色结晶形聚合物，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。

特性

PA66在聚酰胺材料中有较高的熔点。它是一种半晶体-晶体材料。PA66在较高温度也能保持较强的强度和刚度。PA66在成型后仍然具有吸湿性，其程度主要取决于材料的组成、壁厚以及环境条件。在产品设计时，一定要考虑吸湿性对几何稳定性的影响。

为了提高PA66的机械特性，经常加入各种各样的改性剂。玻璃就是最常见的添加剂，有时为了提高抗冲击性还加入合成橡胶，如EPDM和SBR等。PA66的粘性较低，因此流动性很好（但不如PA6）。这个性质可以用来加工很薄的元件。它的粘度对温度变化很敏感。PA66的收缩率在1%~2%之间，加入玻璃纤维添加剂可以将收缩率降低到0.2%~1% 。收缩率在流程方向和与流程方向相垂直方向上的相异是较大的。A66 Zytel 塑胶原料性能特点? PA66是PA系列中机械强度最高、应用最广的品种,因其结晶度高,故其刚性、耐热性都较高超声波可焊接低分子量经润滑可加工性良好良好的成型性能良好的电气性能流动性高耐化学性良好耐磨损性良好耐疲劳性能耐油性能耐油脂性能生产阶段快脱模性能良好等; 用途? 汽车领域的应用电气/电子应用领域家电部件连接器; PA66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?但易溶于苯酚、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?因而标准稳定性较差。广泛用于制造机械、汽车、化学与电气设备的零件?如齿轮、滚子、滑轮、辊轴、泵体中叶轮、电扇叶片、高压密封围、阀座、垫片、衬套、各种把手、支撑架、电线包层等RoHS 合规性 外观?自然色 形状?颗粒料?性状?半透明或不透明乳白色结晶形聚合物?具有可塑性。

首诺PA66 VYDYNE 25WSP 产品说明：

Vydyne 25WSP is a black, weather-resistant injection-molding grade PA66 resin. This resin offers a well-balanced combination of engineering properties characterized by high strength, rigidity, good toughness, high melt point, good surface lubricity and abrasion resistance. Vydyne 25WSP maintains the chemical resistance typical of PA66 to many chemicals, machine and motor oils, solvents and gasoline.

Weather resistance is obtained by incorporating finely divided, well-dispersed carbon black particles in the PA66 matrix. While the presence of carbon black usually increases brittleness, this resin has been formulated to minimize loss of ductility properties such as elongation and Izod impact strength. As a result, parts molded from 25WSP frequently exhibit higher ductility and practical toughness compared with other black, weather-resistant, non-impact-modified PA66 molded parts.

Vydyne 25WSP resin is internally and externally lubricated for improved machine feed and exceptional mold release. Vydyne 25WSP is intended for use in high-productivity applications. In many applications, the molding cycle can be reduced because molded parts may be removed from the cavity at higher temperatures. In difficult molds where parts have a tendency to stick in the cavity, Vydyne 25WSP can reduce or eliminate the need for mold release sprays. Critical molded part dimensions should be checked against specifications before implementing shorter molding cycles on a routine production basis.