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Teflon® PTFE 850-A
聚四氟乙烯
DuPont Fluoropolymers

產(chǎn)品說明

Teflon PTFE 850-A is a free-flowing pelletized PTFE granular resin that extends the Teflon® PTFE 8 resin family by providing superior processing characteristics. Compared with other resins in this family, Teflon® PTFE 850-A offers superior powder flow, low mold shrinkage, and high bulk density.

The uniform particles and high flow performance of Teflon® PTFE 850-A meet requirements for many high-quality automatic molding processes. Because it provides uniform shrinkage, Teflon® PTFE 850-A helps meet tight dimensional tolerances.

Teflon® PTFE 850-A can also be used for isostatic molding. Compared with other resins in the Teflon® PTFE 8 family, it can be molded at moderate pressures, and its relatively soft particles yield smooth-surfaced parts.

總體

材料狀態(tài) • 已商用：當(dāng)前有效  
供貨地區(qū) • 北美洲 • 歐洲 
 • 拉丁美洲 • 亞太地區(qū) 
   
性能特點(diǎn) • 良好的表面光潔度 • 食品接觸的合規(guī)性 
 • 流動(dòng)性高 • 收縮性低 
   
用途 • 閥門/閥門部件 • 零件裝置 
 • 管道系統(tǒng) • 密封 
   
機(jī)構(gòu)評(píng)級(jí) • FDA 21 CFR 177.1550  
形式 • 顆粒料  
加工方法 • 燒結(jié) • 壓縮模塑 

物理性能 額定值單位制 測(cè)試方法
比重 2.16g/cm³ ASTM D792
表觀密度 0.90g/cm³ ASTM D1895
收縮率 - 流動(dòng) 2.7% ASTM D955
機(jī)械性能 額定值單位制 測(cè)試方法
抗張強(qiáng)度 27.6MPa ASTM D638
伸長(zhǎng)率 (斷裂) 300% ASTM D638
熱性能 額定值單位制 
熔融溫度 327 到 342°C 
補(bǔ)充信息  
Powder Flow, ASTM D1855 Modified: 450 g/min  
Average Particle Size, ASTM D4894: 400 µm  

備注
1 一般屬性：這些不能被視為規(guī)格。

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