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Teflon® PTFE 8
聚四氟乙烯
DuPont Fluoropolymers

產(chǎn)品說明

Teflon® PTFE 8 is a free-flowing white powder composed of relatively large particles. Its most unique features are high bulk density and excellent powder flow.

The high bulk density and low compression ratio of Teflon® PTFE 8 permit the use of shallow molds for small parts and complex shapes. Good powder flow is necessary for use in equipment that feeds resin automatically.

Teflon® PTFE 8 is used for general-purpose, highspeed automatic preforming of small parts and ram extrusion of large diameter rod and tubing. Properly processed products made from neat Teflon® PTFE 8 provide the superior properties typical of the fluoropolymer resins: retention of properties after service at 260°C (500°F), useful properties at -240°C (-400°F), chemical inertness to nearly all industrial chemicals and solvents, and low friction and antistick surfaces. Dielectric properties are outstanding and stable with frequency and temperature. Molded products have moderate stiffness and high ultimate elongation.

In a flame situation, products of Teflon® PTFE 8 resist ignition and do not themselves promote flame spread. When ignited by flame from other sources, their contribution of heat is small and with very little smoke.

Statements, or data, regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions.

總體

材料狀態(tài) • 已商用：當前有效   
供貨地區(qū) • 北美洲 • 歐洲  
 • 拉丁美洲 • 亞太地區(qū)  
    
 • 低摩擦系數(shù) • 耐化學性良好 • 一般目的 
性能特點 • 剛性，良好 • 食品接觸的合規(guī)性  
 • 抗溶解性 • 延展性，高  
 • 電器導線絕緣材料 • 密封 • 條材 
用途 • 閥門/閥門部件 • 實驗室器具  
 • 管道 • 套管  
機構(gòu)評級 • FDA 21 CFR 177.1550   
外觀 • 白色   
形式 • 棒材   
加工方法 • 擠出 • 燒結(jié) • 壓縮模塑 

物理性能 額定值單位制 測試方法
比重 2.15g/cm³ ASTM D792
表觀密度 0.73g/cm³ ASTM D1895
收縮率 - 流動 2.8% ASTM D955
機械性能 額定值單位制 測試方法
抗張強度 27.6MPa ASTM D638
伸長率 (斷裂) 300% ASTM D638
熱性能 額定值單位制 
熔融溫度 327 到 342°C 
補充信息  
Powder Flow, ASTM D1855 Modified: 300 g/min  
Average Particle Size, ASTM D4894: 600 µm  

備注
1 一般屬性：這些不能被視為規(guī)格。

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