主要特性: PPA强度、韧度和硬度优越性能，以及其良好的耐热件，耐化学性及抗开裂能力;
PPA由于高温和高湿环境下仍能保持强度和硬度，可在传统的尼龙和聚酯所无法随的就用中替换金属;
PPA塑料还具有优越的表面光泽性。可以对其进行着色而避免了表面喷涂，从而有助于降低表面划痕和刮痕的明显程度;
PPA塑料还具有良好的可加工性，并允许短的注塑循环时间;
与PA46相比: PPA具有比PA46更高的热稳定性； PPA具有比PA46更好的CTI/耐电弧能和红外同流能力； PPA具有比PA46更好的耐化学性.
注塑加工： 绝大多数PPA树脂是用传统注塑法加工的。把 PPA原料预干燥到低于 0．1%的湿度水平，然后装入热密封的金属村里袋子或盒子内，这些容器能保证PPA原料在加工前不用再干燥。加工工艺可接受的湿度水平是0．15%或更低。加工湿的树脂能使分子量降低，造成相应的机械性能上的损失。使用干燥剂贮斗式干燥器，在175°F条件下很容易把树脂干燥到露点湿度达一25°F甚至更低。
Main characteristics: PPA has excellent strength, toughness and hardness, as well as its good heat resistance, chemical resistance and cracking resistance;
Because PPA can still maintain strength and hardness under high temperature and high humidity, it can replace metal in the use that traditional nylon and polyester can not follow;
PPA plastic also has excellent surface gloss. It can be colored to avoid surface spraying, thus helping to reduce the apparent degree of surface scratches and scratches;
PPA plastic also has good processability and allows short injection cycle time;
Compared with PA46: PPA has higher thermal stability than PA46; PPA has better CTI/arc resistance and infrared co-current capacity than PA46; PPA has better chemical resistance than PA46
Injection molding: Most PPA resins are processed by traditional injection molding. Pre-dry the PPA raw material to a humidity level below 0.1%, and then put it into a heat-sealed metal bag or box. These containers can ensure that the PPA raw material does not need to be dried before processing. The acceptable humidity level for the processing process is 0.15% or less. Processing wet resin can reduce the molecular weight and cause the corresponding mechanical property loss. Using desiccant bucket dryer, it is easy to dry the resin to the dew point humidity of - 25 ° F or even lower at 175 ° F.
