产品详情
长期供应Ryton PPS R-4-230NA价格合理,诚信经营，可全国供货（广东省内 免费送货上门）。
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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 # taikena) /4632Z/
Use: other
Characteristic notes: 15% enhancement
Important beters: density: 1.34 g/cm3 absorption rate: 0.45% notched impact strength: 17 tensile strength: 60 MPa elongation: 4% bending strength: 100 MPa flexural modulus: 3800 MPa hardness: 109 VEKA softening point of 180 DEG C heat debation temperature: 154 degrees
Manufacturer: America taikena company
PBT (polybutylene terephthalate polyester # Polyplastics /304SA/)
Use: other
Characteristic remark: 15%GF low specific gravity low warp
Important beters: density: 1.28 g/cm3 tensile strength: 96.1 MPa bending strength: 139 MPa bending modulus: 5310 MPa thermal debation temperature: 170
Manufacturer: Japan Plastic Co., Ltd.
PBT (polybutylene terephthalate polyester /SG-52152/LG chemical #)
Use: other
Characteristic notes: high gloss impact modification
Important beters: density: 1.4 g/cm3 molding shrinkage: 0.65% notched impact strength: 70 tensile strength: 75 MPa elongation at break: 5% bending strength: 125 MPa bending modulus: 4120 MPa thermal debation temperature: 205
Manufacturer: Korea LG chemical company
PBT (polybutylene terephthalate polyester #) /GP-5000/ Samsung Cheil
Use: other
Important beters: density: 1.31 g/cm3 water absorption: 0.08% molding shrinkage: 1.9% tensile strength: 54 MPa bending strength: 78 MPa bending modulus: 2500 MPa hardness: 117 hot debation temperature: 149
Manufacturers: Korea first wool weaving Co., Ltd.
PBT (polybutylene terephthalate # polyester /KL1-7265/ Bayer)
Use: other
Important beters: melt flow rate: 27 g/10min density: 1.43 g/cm3 absorption rate: 0.4% molding shrinkage rate: 0.9% oxygen index: 21% tensile strength: 105 MPa elongation: 3% bending strength: 155 MPa VEKA softening point of 210 DEG C heat debation temperature: 195 degrees
Manufacturer: Bayer AG, Germany
PBT (polybutylene terephthalate # polyester /KU2-7341/ Bayer)
Use: other
Important beters: melt flow rate: 10 g/10min density: 1.63 g/cm3 molding shrinkage rate: 0.8% oxygen index: 23% tensile strength: 80 MPa elongation: 1.2% bending strength: 150 MPa VEKA softening point of 205 DEG C heat debation temperature of 180 DEG C: filler content: 40%
Manufacturer: Bayer AG, Germany
PBT (polybutylene terephthalate polyester #) /7065/ Elizabeth Foundation (GE)
Use: other
Characteristic notes: 63% mineral reinforced
Important beters: melt flow rate: 17 g/10min density: 2.4 g/cm3 molding shrinkage: 12.5% notched impact strength: 0.4 elongation at break: 1% thermal debation temperature: 116
Manufacturer: SABIC innovative plastics (GE)
PBT (polybutylene terephthalate polyester #) /357U/ Elizabeth Foundation (GE)
Use: other
Important beters: density: 1.34 g/cm3 water absorption: 0.08% molding shrinkage: 9.5% notched impact strength: 10 elongation at break: 110% hardness: 117
Manufacturer: SABIC innovative plastics (GE) [see] price
PBT (polybutylene terephthalate polyester #) /420HP/ Elizabeth Foundation (GE)
Use: other
Important beters: density: 1.53 g/cm3 water absorption: 0.07% molding shrinkage: 5% elongation at break: 3% hardness: 118
Manufacturer: SABIC innovative plastics (GE)
PBT (polybutylene terephthalate # polyester) /BT-2200-60/ Japan ink
Use: other
Important beters: density: 1.41 g/cm3 absorption rate: 0.07% molding shrinkage rate: 1.6% notched impact strength: 45 tensile strength: 50 MPa elongation: 50% bending strength: 90 MPa flexural modulus of 2400 MPa hot debation temperature: 70 degrees
Japan ink chemical industry Co., Ltd.
