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Teflon® PFA 416HP

Perfluoroalkoxy
DuPont Fluoropolymers
产品说明：
For inventory control purposes product name may be followed by an X.

Products labeled PFA 416 HP and PFA 416 HP X are equivalent and all information in this document is applicable to both.

Typical Application
Applications for DuPont™ Teflon ® PFA 416HP include high performance thin-wall wire coatings; intricate injection molded parts for production of chemicals where purity in the parts-per-billion range is needed; semiconductor components and electronic parts; and fluid handling systems for high performance chemical filters. With a typical melt flow rate of 42, Teflon ® PFA 416HP resin is ideally suited for applications requiring a high processing speed and very low viscosity.

Description
DuPont™ Teflon ® PFA 416HP is a special purpose fluoroplastic resin available in pellet form. This resin has a higher melt flow rate (typical MFR of 42) than most other PFA fluoroplastic resins, which permits higher extrusion speed and easier processing, making Teflon ® PFA 416HP a cost-effective alternative for producing thin-wall and complicated articles. Unlike other high melt flow rate polymers, Teflon ® PFA 416HP is specially formulated to provide a high melt flow rate for processing ease, while still providing good flexural properties and stress-crack resistance. These unique properties, coupled with the resin's high thermal stability, enable thin coatings of ultra-fine wires and injection molding of complex parts. Table 1 shows the typical property data for Teflon ® PFA 416HP.

The enhanced purity of Teflon ® PFA 416HP makes it suitable for applications that require improved color, lower extractable fluorides, and freedom from other foreign materials. Teflon ® PFA 416HP contains no additives and is designed for hostile chemical environments where purity in the parts-per-billion range is needed. Teflon ® PFA 416HP combines the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene. Compared to other thermoplastics, the high melt strength and thermal stability of Teflon ® PFA 416HP can be used to improve processing rates, and allows intricate electronics to be insulated with an extremely thin coating and still withstand soldering.

Properly processed products made from neat Teflon ® PFA 416HP resin provide the superior properties typical of the 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 416HP 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 416HP meets the requirements of ASTM D3307, Type IX
物性信息：

基本信息
特性	纯度高 低摩擦系数 低吸湿性 低烟度 良好的电气性能 良好的熔体强度 良好的柔韧性 流动性高 耐化学性良好 耐气候影响性能良好 耐热性，中等 热稳定性，良好 韧性良好 食品接触的合规性
用途	半导体模制化合物 薄质涂料 电气元件 过滤器 液体处理
机构评级	FDA 21 CFR 177.1550 欧洲 No 10/2011
形式	粒子
加工方法	挤出 树脂传递成型 压缩模塑 注射成型

物理性能	额定值	单位制	测试方法
比重	2.14	g/cm³	ASTM D792
熔流率（熔体流动速率） (372°C/5.0 kg)	42	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
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
抗张强度 (23°C)	25.0	MPa	ASTM D3307, ISO 12086
伸长率 (断裂, 23°C)	350	%	ASTM D3307, ISO 12086
弯曲模量 (23°C)	690	MPa	ASTM D790, ISO 178

热性能	额定值	单位制	测试方法
熔融温度	305	°C	ASTM D4591

电气性能	额定值	单位制	测试方法
体积电阻率	1.0E+18	ohms·cm	ASTM D257, ISO 1325
介电强度
0.250 mm 1	80	kV/mm	ASTM D149
0.250 mm	80	kV/mm	IEC 60243-1
介电常数 (1 MHz)	2.03		ASTM D150, IEC 60250
耗散因数 (1 MHz)	< 2.0E-4		ASTM D150, IEC 60250

可燃性	额定值	单位制	测试方法
UL 阻燃等级 2	V-0		UL 94
极限氧指数	> 95	%	ASTM D2863, ISO 4589-2

补充信息	额定值	单位制	测试方法
Critical Shear Rate (372°C)	12.0	sec^-1
MIT Folding Endurance 3(200.0 µm)	4.0E+3	Cycles	ASTM D2176
Weather and Chemical Resistance: Outstanding

备注
1 .	方法A（短时间）
2 .	These results are based on laboratory tests under controlled conditions and do not reflect performance under actual fire conditions, current rating is a typical theoretical value.
3 .	Depending on fabrication conditions

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*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。