1-800-441-7515 (outside the U.S. 1-302-774-1000)
1-800-441-3637 (outside the U.S. 1-302-774-1139)
CHEMTREC: 1-800-424-9300 (outside the U.S.1-703-527-3887)SECTION 2. HAZARDS IDENTIFICATION
Emergency Overview
The thermal decomposition vapours of fluorinated polymers maycause polymer fume fever with flu-like
symptoms in humans, especially when smoking contaminatedtobacco.
Potential Health Effects
Skin
Tetrafluoroethyle
ne/perfluoroalkylv
inylether
copolymer
: Dust may cause: Discomfort, itching, redness, or swelling.Eyes
copolymer : Dust may cause: tearing, Redness, Discomfort.
Version 3.0
Revision Date 07/14/2020Ref. 150********6
2 / 9
Inhalation
copolymer : Dust may cause: Respiratory tract irritation Thethermal decomposition vapours of fluorinated polymers may causepolymer fume fever with flu-like symptoms in humans, especiallywhen smoking contaminated tobacco.
Symptoms usually appear after several hours and resolve within 1to 2
days.
Teflon® PFA450HP
Perfluoroalkoxy
DuPont Fluoropolymers
产品说明：
For inventory control purposes product name may be followed byan X.
Products labeled PFA 450HP and PFA 450HP X are e and allinformation in this document is applicable to both.
Typical Application
Applications for DuPont™ Teflon ® PFA 450HP include tubing,chemical linings for pipes, valves, and fittings used in thechemical processing industries, unsupported pipe linings for theproduction of ultra-pure chemicals, semiconductor components, andfluid handling components for high-performance chemical deliverysystems where purity in the parts-per-billion range is needed.Teflon ® PFA 450HP is preferred in applications where extendedservice is required in hostile environments involving chemical,thermal, and mechanical stress.
Description
DuPont™ Teflon ® PFA 450HP is a special purpose fluoroplastic resinavailable in pellet form. This resin is a chemically modified formof Teflon ® PFA 350 that combines many of the benefits of theparent resin (highest resistance to environmental stress-crackingwith a typical MIT folding endurance of 500,000*) with severaladditional benefits including enhanced purity, improved thermalstability while processing, and chemical inertness; for example, toozonated fluids. Table 1 shows the typical property data for Teflon® PFA 450HP.
Teflon ® PFA 450HP is a relatively low melt flow rate (typical MFRof 2), premium resin with the lowest level of extractables designedto meet ultra-high purity re An enhanced resistance toenvironmental stress-cracking makes Teflon ® PFA 450HP a preferredresin when extended service is required in hostile environmentsinvolving chemical, thermal, and mechanical stress. Additionally,the enhanced purity of Teflon ® PFA 450 HP 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. Compared to other thermoplastics,the high melt strength and thermal stability of Teflon ® PFA 450HPcan be used to improve processing rates, combining the processingease of conventional thermoplastics with many properties similar tothose of polytetrafluoroethylene.
Properly processed products made from neat Teflon ® PFA 450HP resinprovide the superior properties characteristic of fluoroplasticresins: chemical inertness, exceptional dielectric properties, heatresistance, toughness and flexibility, low coefficient of friction,non-stick characteristics, negligible moisture absorption, lowflammability, performance at temperature extremes, and excellentweather resistance.
In a flame situation, products of Teflon ® PFA 450HP 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 450HP meets the re of ASTM D3307, TypeII
物性信息：
| 基本信息 | |
|---|---|
| 黄卡编号 |
|
| 特性 |
|
| 用途 |
|
| 机构评级 |
|
| 形式 |
|
| 加工方法 |
|
| 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) | 2.0 | 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 | ASTM D3307, ISO 12086 | ||
| 23°C | 28.0 | MPa | ASTM D3307, ISO 12086 |
| 250°C | 14.0 | 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 | 500 | % | ASTM D3307, ISO 12086 |
| 弯曲模量 | ASTM D790, ISO 178 | ||
| 23°C | 625 | MPa | ASTM D790, ISO 178 |
| 250°C | 69.0 | 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 | |||
| 0.250mm 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(200.0µm) | 5.0E+5 | Cycles | ASTM D2176 |
Fire and Explosion Hazard :Hazardous thermal decompositionproducts:
acid fluorides
Fluorinated compounds
Hydrogen fluoride
Carbon monoxide
Suitable extinguishing media :Carbon dioxide (CO2), Dry powder,Foam, Water
Firefighting Instructions :In the event of fire, wearself-contained breathing apparatus. Wear suitable
protective e Wear neoprene gloves during cleaningup work after a
fire.
Protect from hydrogen fluoride fumes which react with water toform
hydrofluoric acid.
