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 e 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 re 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 uni 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 re of ASTM D3307, Type I
Teflon? PFA 340 物性表
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物理性能 | 额定值 | 单位制 | 测试方法 |
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比重 | 2.15 | g/cm3 | ASTM D792 |
熔流率(熔体流动速率)(372°C/5.0 kg) | 14 | g/10 min | ASTM D3307, ISO 12086 |
吸水率(24 hr) | 0.030 | % | ASTM D570 |
硬度 | 额定值 | 单位制 | 测试方法 |
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肖氏硬度(邵氏 D) | 55 | ASTM D2240, ISO 868 |
机械性能 | 额定值 | 单位制 | 测试方法 |
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抗张强度 | ASTM D3307, ISO 12086 | ||
23°C | 25.0 | MPa | ASTM D3307, ISO 12086 |
250°C | 12.0 | MPa | ASTM D3307, ISO 12086 |
伸长率 | ASTM D3307, ISO 12086 | ||
断裂, 23°C | 300 | % | ASTM D3307, ISO 12086 |
断裂, 250°C | 480 | % | ASTM D3307, ISO 12086 |
弯曲模量 | ASTM D790, ISO 178 | ||
23°C | 590 | MPa | ASTM D790, ISO 178 |
250°C | 55.0 | MPa | ASTM D790, ISO 178 |
热性能 | 额定值 | 单位制 | 测试方法 |
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熔融温度 | 305 | °C | ASTM D4591 |
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