现货PFA 340 美国杜邦  涂层应用 喷涂模压 全氟烷氧基

美国杜邦PFA 340 挤出级 电气性能良好 绝缘材料 压缩模塑 注射成型

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。

Teflon? PFA 340

全氟烷氧基

DuPont Fluoropolymers

产品说明：

For inventory control purposes product name may be followed byan X.Products labeled PFA 340 and PFA 340 X are equivalent and allinformation in this document is applicable to both.TypicalApplicationApplications for DuPont? Teflon ? PFA 340 includeextruded tubing and other profiles for hose, wire and cableinsulation, and sleeving; industrial film; and injection orcompression molded articles requiring superior electrical,chemical, and thermal properties.DuPont? Teflon ? PFA 340 is ageneral-purpose fluoroplastic resin available in pellet form.Compared with other grades of Teflon ? PFA, its most uniquefeatures are a relatively high melt flow rate (typical MFR of 14)and properties that make it suitable for a variety of processes anddemanding end uses. Table 1 shows the typical property data forTeflon ? PFA 340.Teflon ? PFA 340 is used when traditionalextrusion and molding processes are required for producing productswith the superior properties of a fluoroplastic resin. Compared toother thermoplastics, the high melt strength and thermal stabilityof Teflon ? PFA 340 can be used to improve processing rates.Compared with other fluoroplastics, creep resistance at highservice temperatures provides a superior balance and level ofend-use properties. Teflon ? PFA 340 combines the processing easeof conventional thermoplastics with many properties similar tothose of polytetrafluoroethylene.Properly processed products madefrom neat Teflon ? PFA 340 resin provide the superior propertiescharacteristic of fluoroplastic resins: chemical inertness,exceptional dielectric properties, heat resistance, toughness andflexibility, low coefficient of friction, non-stickcharacteristics, negligible moisture absorption, low flammability,performance at temperature extremes, and excellent weatherresistance.In a flame situation, products of Teflon ? PFA 340resist ignition and do not promote flame spread. When ignited byflame from other sources, their contribution of heat is very smalland added at a slow rate with very little smoke.Teflon ? PFA 340meets the requirements of ASTM D3307, Type I

Teflon? PFA 340 物性表

美国杜邦PFA 340 挤出级 电气性能良好 绝缘材料 压缩模塑 注射成型