特性： 

1.物理性能：摩擦系数低；硬度低，性差；粘附性差；具有生理惰性，； 2.力学性能：机械性能较差，易出现蠕变现象，具有冷流性；耐疲劳性好；拉伸、弯曲、冲击强度低；一般不用作结构件；3.耐热性能：使用温 度-60℃-260℃； 4.燃烧性能：极限氧指数>95%，自熄性，是不燃物质； 5.化学稳定性：的化学稳定性、性；几乎对所有的化学试剂和溶剂是惰性的；6.电性能：优良的高频绝缘材料， 的介电材料；7.耐候性能：耐候性、耐大气老化性好； 8.加工性：可采用注塑、挤出、模压加工；但临界剪切速率低，注塑挤出时出料速率和压力要低；

物理性能

Teflon® PFA TE9724

Perfluoroalkoxy

DuPont Fluoropolymers

产品说明：

For inventory control purposes product name may be followed by an X.

Products labeled PFA TE9724 and PFA TE9724 X are equivalent and all information in this document is applicable to both.

Typical Application
DuPont™ Teflon ® PFA TE9724 is an ideal resin for applications involving compounding and compression molding, as well as extruded tubing and other profiles for hose, electrical insulators, and sleeving; industrial film and products made from film; and injection or compression molded articles requiring superior electrical, chemical, and thermal properties. Teflon ® PFA TE9724 offers a slightly higher melt flow rate than Teflon ® PFA TE9725, providing greater processing ease.

Description
DuPont™ Teflon ® PFA TE9724 is a general-purpose fluoroplastic resin available as loosely compacted fluff. It is intended for use in special application processes in consultation with DuPont. Compared with other grades of Teflon ® PFA, its most unique features are a relatively high flow rate and properties that make it suitable for a variety of processes and demanding end uses, especially compounding and compression molding. Table 1 shows the typical property data for Teflon ® PFA TE9724.

Teflon ® PFA TE9724 is used when traditional extrusion and molding processes are required for producing products with the superior properties of a fluoroplastic resin. Compared to other thermoplastics, the high melt strength and thermal stability of Teflon ® PFA TE9724 can be used to improve processing rates. Compared with other thermoplastics, Teflon ® PFA TE9724 provides a superior balance and level of end-use properties at high service temperatures. Teflon ® PFA TE9724 combines the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene.

Properly processed products made from neat Teflon ® PFA TE9724 resin provide the superior properties characteristic of fluoroplastic resins: chemical inertness, exceptional dielectric properties, heat resistance, toughness and flexibility, low coefficient of friction, non-stick characteristics, negligible moisture absorption, low flammability, performance at temperature extremes and excellent weather resistance.

In a flame situation, products of Teflon ® PFA TE9724 resist ignition and do not promote flame spread. When ignited by flame from other sources, their contribution of heat is very small and added at a slow rate with very little smoke.

Teflon ® PFA TE9724 meets the requirements of ASTM D3307, Type I

物性信息：

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。

3.半透明粒料，注塑、挤出成型。成型温度350-400摄氏度，475摄氏度以上容易引起变色或发生气泡。并注意脱模会较困难。

4、因熔融的材料对金属有腐蚀作用，长期生产，模具需要电镀铬处理。

全氟烷氧基树脂

PFA树脂相对来说是比较新的可熔融加工的氟塑料。

PFA的熔点大约为580F，密度为2.13— 2.16g/cc（克/立方厘米）。PFA与 PTFE和FEP相似，但在302T以上时，机械性能略优于FEP，且可在高达500F下的温度下使用，它的耐化学品性与PTFE相当。PFA的产品形式有用于模塑和挤塑的粒状产品，用于旋转模塑和涂料的粉状产品；