美国科慕PFA TE9725 注塑级 挤出应用 高韧性 低磨损 管材 复合薄膜 内衬

Teflon? PFA TE9725

全氟烷氧基

DuPont Fluoropolymers

产品说明：

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

Products labeled PFA TE9725 and PFA TE9725 X are equivalent and all information in this document is applicable to both.

Typical Application
DuPont? Teflon ? PFA TE9725 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 blow-molded articles requiring superior electrical, chemical, and thermal properties. Teflon ? PFA TE9725 offers a slightly lower melt flow rate than Teflon ? PFA TE9724, ultimately providing a higher degree of stress-crack resistance.

Description
DuPont? Teflon ? PFA TE9725 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 low 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 TE9725.

Teflon ? PFA TE9725 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 TE9725 can be used to improve processing rates. Compared with other thermoplastics, Teflon ? PFA TE9725 provides a superior balance and level of end-use properties at high service temperatures. Teflon ? PFA TE9725 combines the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene.

Properly processed products made from neat Teflon ? PFA TE9725 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 TE9725 resist ignition and do not promote flame spread. When ignited by flame from other sources, their contribution of heat is very small and dded at a slow rate with very little smoke.

Teflon ? PFA TE9725 meets the requirements of ASTM D3307, Type II

PFA塑料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。适于制作耐腐蚀件，减磨耐磨件、密封件、绝缘件和医疗器械零件，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。

PFA物料性能

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，有卓越的耐化学腐蚀性，对所有化学品都耐腐蚀，摩擦系数在塑料中最低，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，耐辐射性能优异。阻燃性达V0级。

5、适于制作耐腐蚀件，减磨耐磨件、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；其半成品有膜、板、棒和管材。美国市场经销的PFA树脂有DUPOut公司的Teflon牌、Daikin公司的Neoflon牌、Ansimont公司的Hthen牌、HOechst Celanese公司的 Hostafl牌。PFA的用途与FEP类似。

广裕塑胶现货供应:PP，PE，PVC，ABS，PC，PC/ABS，PA6，PA66，,PA6T，PA9T，PAMXD6，IXEF，PA11，PA12，PBT，PET，PPS，LCP，PEI，PPSU，PSU，氟树脂 (PVDF,PFA,PTFE,FEP,ECTFE )，PEEK，TPU，TPV，TPE，食品级降解塑料（PBAT，PLA，PBS，PBST）等。

免费提供原料：物性表，UL黄卡，随货同行(提供)SGS,MSDS,FDA,LFGB,USP,COA,PFOS,REACH, ROSH/SONY等资料。