一、性能简介：
聚苯硫醚（PPS）在化学和高温环境下表现出优良的综合性能，包括耐磨、高负荷能力和尺寸稳定性。此外PPS型材致密性、良好硬度和卓越的抗化学腐蚀性能使其在各种工业设备中得到了广泛应用，例如工业干燥和食品加工烤炉、化工设备、机械轴承和电气绝缘系统等。PPS型材在220℃下可长期使用，目前尚未发现可在200℃以下能溶解PPS的溶剂,所以PPS即使在高温下对无机酸、碱、盐等抗腐蚀性也相当好。PPS在没有添加阻燃剂的情况下，在UL94燃烧性试验中为V-0/5V，是最高级别。
二、应用领域：
1、电子电器工业上做连接器、绝缘隔板、端子、开关。
2、机械和粘密机械上做泵、齿轮、活塞环贮槽、叶片阀件，钟表零部件、照相机部件。
3、汽车工业上汽化器、分配器部件、电子电气组等零件、批气阀气、传感器部件。
4、家电部件有磁带录相机结构部件、品体二极管、各种零件。
5、另外还用于宇航、航空工业， PPS/PTFE可做防粘、耐磨部件及传动件，如轴泵。
详细物性表请来电咨询。
PPS (polyphenylene sulfide) products offer the broadest resistance to chemicals of any advanced engineering plastic. They have no known solvents below 392°F (200°C) and offer inertness to steam, strong bases, fuels and acids. Minimal moisture absorption (see Figure 21) and a very low coefficient of linear thermal expansion, combined with Quadrant's proprietary stress relieving processes, make these PPS products ideally suited for precise tolerance machined components. In addition, PPS products exhibit excellent electrical characteristics and are inherently flame retardant.
PPS exhibits excellent wear resistance and a low coefficient of friction. It overcomes the disadvantages of virgin PPS caused by a high coefficient of friction, and of glass fibre reinforced PPS which can cause premature wear of the counterface in moving-part applications.
- Excellent wear and frictional behavior
- Excellent chemical and hydrolysis resistance
- Very good dimensional stability
- Good electrical insulating and dielectric properties
- Inherent low flammability
Excellent resistance against high energy radiation
Proven Applications:(成功应用案例)
Lantern Rings
Rings made of Bearing-grade Quadrant PPS eliminate galling and corrosion problems in centrifugal mining pumps, and allow closer running clearances -- reducing recirculation and increasing efficiency. (Prior material: Bronze) |
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Pump Housings
Precision machined, 40% Glass-reinforced Quadrant PPS components allow high efficiency in a broad range of chemical pump environments. (Prior material: Stainless Steel) |
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HPLC
Components used in high pressure liquid chromatography are fabricated from PPS stock shapes due to its chemical inertness. (Prior materials: PEEK, Stainless Steel, Titanium) |
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Chip Nests
Socket assemblies extensively machined from Techtron PPS plate are used during high power / high speed testing of semiconductor packages. (Prior material: PI) |
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Retaining Rings
Retaining rings used to retain wafers in chemical-mechanical polishing equipment are fabricated from PPS. |
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Engineering Notes
PPS products offer dimensional stability and strength at moderate temperatures. They are rated for continuous service to 425°F (220°C), but strength and stiffness vary based on temperature and grade. Unreinforced PPS is generally not recommended for wear applications. Products like PAI or PEEK are better selections for high temperature wear applications. When designing with compression molded grades, it is important to note its relatively low elongation and impact strength. |
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