PFA 美国杜邦 416HP 注塑级， 增韧级， 薄壁制品

物理性能

1、为少量全氟丙基全氟乙烯基醚与聚四氟乙烯的共聚物。熔融粘结性增强，溶体粘度下降，而性能与聚四氟乙烯相比无变化。此种树脂可以直接采用普通热塑性成型方法加工成制品。

2、长期使用温度-196--260摄氏度，有 的耐化学腐蚀性，对所有化学品都 ，摩擦系数在塑料中，还有很好的电性能，其电绝缘性不受温度影响，有“塑料王”之称。

3、其耐化学药品性与聚四氟乙烯相似，比偏氟乙烯好。

4、其抗蠕变性和压缩强度均比聚四氟乙烯好，拉伸强度高，伸长率可达100-300%。介电性好，耐辐射性能 阻燃性达V0级。

5、适于制作 件，减磨 件、密封件、绝缘件和医疗器械零件。

6、高温电线、电缆绝缘层，防腐设备、密封材料、泵阀衬套，和化学容器。

成型性能

1.结晶料,吸湿小。可采用通常得热塑性塑料得加工方法加工成制品。

2.流动性差，极易分解，分解时产生腐蚀气体。宜严格控制成型温度不要超过475摄氏度，模具应加热至150-200摄氏度，浇注系统对料流阻力应小。

physical property

1. It is a copolymer of a small amount of perfluoropropylperfluoro vinyl ether and polytetrafluoroethylene. The meltadhesion is enhanced, the viscosity of the solution is decreased,and the performance is unchanged compared with that ofpolytetrafluoroethylene. This resin can be directly processed intoproducts by ordinary thermoplastic molding methods.

2. Long-term use temperature is - 196-260 ℃, some of which areresistant to chemical corrosion. For all chemicals, the frictioncoefficient is in plastic, and its electrical insulation is notaffected by temperature, so it is known as the "king ofplastics".

3. Its chemical resistance is similar to that ofpolytetrafluoroethylene, but better than that of vinylidenefluoride.

4. Its creep resistance and compression strength are better thanthat of polytetrafluoroethylene, and its tensile strength is high,and its elongation can reach 100-300%. Good dielectric property,radiation resistance and flame retardance up to V0.

5. Suitable for manufacturing parts, wear reducing parts,sealing parts, insulating parts and medical device parts.

6. High-temperature wire and cable insulation, anti-corrosionequipment, sealing materials, pump valve bushings, and chemicalcontainers.

Molding performance

1. Crystalline material, low moisture absorption. It can beprocessed into products by the usual processing methods ofthermoplastics.

2. It has poor fluidity and is easy to decompose, and corrosivegas will be generated during decomposition. The molding temperatureshould be strictly controlled to not exceed 475 ℃, the mold shouldbe heated to 150-200 ℃, and the resistance of the pouring system tothe material flow should be small.