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介绍————————
pps为一种白色粉末，平均分子量为0.4-0.5万，密度为1.3-1.8克每立方厘米，pps有十分优异的热性能。添加玻璃纤维增强后的热性能指标更高，在232摄氏度经5000h的热老化后，如玻璃纤维、碳纤维、填料等来增强其力学性能，改性后的pps能在长期工作负荷和热负荷的作用下保持高的力学性能和尺寸稳定性，因而可应用于温度高的受力环境中。
pps的介电常数很小，介电损耗相当低，表面电阻率和体积电阻率对频率、温度、湿度的变化不敏感，是优良的电绝缘材料，它的耐电弧时间也较长，pps的化学稳定性相当好，除了受强氧化酸，如浓硫酸、浓硝酸和王水的侵蚀外，它不受绝大多数酸碱盐的侵蚀，具有接近于PTFE的化学稳定性。在低于175摄氏度时不溶于任何已知的有机溶剂，pps与一般有机溶剂接触时不会出现塑件开裂现象。
耐化学性能：目前尚未发现可在200℃以下溶解聚苯硫醚的溶剂，对无机酸、碱和盐类的抵抗性极强。不耐氯代联苯及氧化性酸、氧化剂、王水、过氧化氢及次氯酸钠等。
PPS的耐辐射性好，耐辐射达到Gy 1×108，是其它工程塑料无法比拟的新材料，在电子、电气、机械、仪器、航空、航天、军事等特别是原子弹、中子弹领域，是作为耐辐射唯一理想的优良材料。
PPS本身的化学结构相当稳定，而且含有阻燃性的元素——硫，因此，PPS具有优异的耐燃性。将试片点燃，调整氧气与氮气的流速观察燃烧情形。而刚好让试片持续燃烧的氧气浓度便是极限氧气指数，其值越高，表示耐燃性越佳。纯PPS的极限氧气指数可高达44，也就具有优良的耐燃性。含填充剂或玻璃纤维的PPS的极限氧气指数更高，其耐燃性更佳。
纯PPS在厚度为0.8mm时便可通过UL-94 V0级。基本上，除了少数等级如超韧系列之外，各种等级PPS的UL94燃烧性都是属于V-0级，在UL 94燃烧性中已是最佳的等级了。超韧系列PPS含有一些增韧剂，会牺牲一些耐燃性。
纯PPS及未添加导电物的PPS等级皆具有优良的电气绝缘性质。添加碳纤维的PPS等级则有相当低的体积电阻系数。
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.60 g/cc | 0.0578 lb/in³ | |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Rockwell R | 120 | 120 | |
| Tensile Strength, Ultimate | 120 MPa | 17400 psi | ASTM D638 |
| Tensile Strength, Yield | 120 MPa | 17400 psi | ASTM D638 |
| Elongation at Break | 1.0 % | 1.0 % | ASTM D638 |
| Modulus of Elasticity | 13.0 GPa | 1890 ksi | ASTM D638 |
| Flexural Yield Strength | 170 MPa | 24700 psi | ASTM D790 |
| Flexural Modulus | 12.0 GPa | 1740 ksi | ASTM D790 |
| Compressive Yield Strength | 170 MPa | 24700 psi | ASTM D695 |
| Poissons Ratio | 0.396 | 0.396 | |
| Shear Modulus | 4.66 GPa | 676 ksi | Calculated |
| Shear Strength | 82.7 MPa | 12000 psi | |
| Izod Impact, Notched | 0.530 J/cm | 0.993 ft-lb/in | ASTM D256 |
| Izod Impact, Unnotched | 2.40 J/cm | 4.50 ft-lb/in | ASTM D256 |
| Taber Abrasion, mg/1000 Cycles | 23 | 23 | CS-17 wheel; 1 kg |
其他型号参数与生产商——————————
PBT (polybutylene terephthalate # polyester) /TBG-20GHP/ Shanghai topsUse: other
Important beters: density: 1.44 g/cm3 notched impact strength: 15 tensile strength: 100 MPa elongation at break: 5% bending strength: 155 MPa hardness: 118 thermal debation temperature: 205
Manufacturer: Shanghai tops Industrial Co. Ltd.
PBT (polybutylene terephthalate # polyester) /TBG-30GFRHP/ Shanghai tops
Use: other
Important beters: density: 1.65 g/cm3 notched impact strength: 10 tensile strength: 125 MPa elongation at break: 4% bending strength: 170 MPa hardness: 119 thermal debation temperature: 210
Manufacturer: Shanghai tops Industrial Co. Ltd.
PBT (polybutylene terephthalate polyester # taikena) /6500HF/
Use: other
Important beters: density: 1.55 g/cm3 water absorption: 0.19% molding shrinkage: 0.5% elongation at break: 2.2% bending strength: 180 MPa bending modulus: 9500 MPa hot debation temperature: 202
Manufacturer: America taikena company
PBT (polybutylene terephthalate polyester # taikena) /6500HR/
Use: other
Important beters: density: 1.55 g/cm3 water absorption: 0.19% molding shrinkage: 0.2% elongation at break: 2.2% bending strength: 180 MPa bending modulus: 9500 MPa hot debation temperature: 202
Manufacturer: America taikena company
PBT (polybutylene terephthalate polyester #) /XFR 6842 GF30/ taikena
Use: other
Important beters: melt flow rate: 18 g/10min density: 1.53 g/cm3 molding shrinkage: 0.3% hardness: 83 VEKA softening point: 207 degrees hot debation temperature: 203
Manufacturer: America taikena company
PBT (polybutylene terephthalate polyester #) /WH0450EX/ SABIC of Saudi Arabia
Use: other
Characteristic remark: high specific gravity
Important beters: density: 4.5 g/cm3 molding shrinkage: 0.7% notched impact strength: 32 elongation at break: 0.3% bending strength: 55.2 MPa bending modulus: 11700 MPa thermal debation temperature: 182
Saudi Basic Industries, Inc.
PBT (polybutylene terephthalate polyester /LW5402/LG chemical #)
Use: other
Characteristic note: anti bending, anti impact, high
Important beters: density: 1.6 g/cm3 molding shrinkage: 0.3% notched impact strength: 13.5 elongation at break: 7% bending strength: 152 MPa bending modulus: 7850 MPa thermal debation temperature: 195
Manufacturer: Korea LG chemical company
PBT (polybutylene terephthalate polyester /GP1001FD/LG chemical #)
Use: other
Property notes: flame retardant properties
Important beters: density: 1400 g/cm3 water absorption: 0.04% notched impact strength: 2.9 elongation at break: 20% VEKA softening point: 172 degrees hot debation temperature: 54.2
Manufacturer: Korea LG chemical company
PBT (polybutylene terephthalate # polyester) /1002 TFE 15 SI 2/ RTP
Use: other
Characteristic notes: lubricated
Important beters: density: 1.5 g/cm3 molding shrinkage: 0.4% notched impact strength: 160 bending strength: 143 MPa bending modulus: 5100 MPa
Manufacturers: the United States RTP company
PBT (polybutylene terephthalate polyester #) /D234 GF30 FR/ polykemi
Use: other
Property notes: flame retardant properties
Important beters: density: 1.68 g/cm3 notched impact strength: 6 bending strength: 115 MPa bending modulus: 5200 MPa thermal debation temperature: 183
Manufacturer: polykemi company
