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teflon® pfa945hp plus

perfluoroalkoxy

dupont fluoropolymers

产品说明：

for inventory control purposes product name may be followed byan x.
products labeled pfa 945hp plus and pfa 945hp plus x are e all information in this document is applicable to both.
typical application
with a typical mit folding endurance of 800,000* cycles, dupont™teflon ® pfa 945hp plus is designed to withstand repeated flexingand aggressive chemical stress-cracking agents. applications forteflon ® pfa 945hp plus include fluid handling components forhigh-performance chemical delivery systems, as well as tubing,unsupported pipe linings for the production of ultra-purechemicals, and semiconductor components where purity in theparts-per-billion range is critical.
description
dupont™ teflon ® pfa 945hp plus is a premium fluoroplastic resinavailable in pellet form. teflon ® pfa 945hp plus possesses thesame exceptional chemical resistance, high purity, and protectionagainst ionic contamination as teflon ® pfa hp grades with theadded benefits of improved flex life (typical mit flex of 800,000*)and chemical stress-crack resistance. teflon ® pfa 945hp plus meetsthe increasingly stringent re for ultra-reliable andnon-contaminating parts, as well as unmatched hcl permeationresistance. the improved flex life and chemical resistance willreduce the cost of ownership of high purity fluid handling systemsby reducing downtime caused by mechanical or chemical stresses.additionally, parts molded with teflon ® pfa 945hp plus haveimproved clarity and a smooth finish, which can further helpprevent buildup of microbial contamination in water handlingsystems. table 1 shows the typical property data for teflon ® pfa945hp plus.
this special purpose resin has a mid-range melt flow rate (typicalmfr of 7), which permits relatively high extrusion speed and easierprocessing. the enhanced resistance to environmentalstress-cracking makes teflon ® pfa 945hp plus a preferred resinwhen extended service is required in hostile environments involvingchemical, thermal, and mechanical stress. additionally, theenhanced purity of teflon ® pfa 945hp plus makes it suitable forapplications that require improved color, lower extractablefluorides, and freedom from other foreign materials. this productcontains no additives and is designed for hostile chemicalenvironments where purity in the parts-per-billion range is needed.examples are in semiconductor manufacture, fluid handling systemsfor industry or life sciences, and instrumentation for precisemeasurements of fluid systems. teflon ® pfa 945hp plus combines theprocessing ease of conventional thermoplastics with the propertiessimilar to those of polytetrafluoroethylene.
with teflon ® pfa 945hp plus, components can last longer underdynamic loads and resist damage caused by ozonated fluids andfluorosurfactants. combined with excellent chemical, permeation,and stress-crack resistance, this durability leads to a reducedcost of ownership. the high purity and fully fluorinated oleculeend groups of teflon ® pfa hp plus can reduce contamination toprotect process yields.
properly processed products made from neat teflon ® pfa 945hp plusresin provide the superior properties characteristic offluoroplastic resins: chemical inertness, exceptional dielectricproperties, heat resistance, toughness and flexibility, lowcoefficient of friction, non-stick characteristics, negligiblemoisture absorption, low flammability, performance at temperatureextremes, and excellent weather resistance.
in a flame situation, products of teflon ® pfa 945hp plus resistignition and do not promote flame spread. when ignited by flamefrom other sources, their contribution of heat is very small andadded at a slow rate with very little smoke.
teflon ® pfa 945hp plus meets the re of astm d3307, typevi

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

高 escr（抗应力开裂）

良好的电气性能

良好的柔韧性

流动性中等

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

中等透明度

用途

衬里

管件

液体处理

机构评级

fda 未评级

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2.14g/cm³astm d792熔流率（熔体流动速率） (372°c/5.0 kg)7.0g/10 minastm 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
astm d3307, iso 12086    23°c28.0mpaastm d3307, iso 12086    200°c13.0mpaastm d3307, iso 12086伸长率
astm d3307, iso 12086    断裂, 23°c290%astm d3307, iso 12086    断裂, 200°c450%astm d3307, iso 12086弯曲模量
astm d790, iso 178    23°c600mpaastm d790, iso 178    200°c55.0mpaastm d790, iso 178热性能额定值单位制测试方法熔融温度290°castm d4591电气性能额定值单位制测试方法体积电阻率1.0e+18ohms·cmastm d257, iso 1325介电强度
    0.250mm 180kv/mmastm d149    0.250 mm80kv/mmiec 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 2v-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)21.0sec^-1
mit folding endurance 3(200.0µm)8.0e+5cyclesastm d2176

美国伊士曼tritan pctg tx1501hf是一种伊士曼tritan的高流动级材料，tritan共聚酯tx1501hf粘度降低40 -50%的相对于伊士曼tritan共聚酯tx1001，其他突出的特点包括良好的韧性，水解稳定性，耐热性