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

产品说明

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.

总体

材料状态 • 已商用：当前有效  
供货地区 • 北美洲 • 欧洲 
 • 拉丁美洲 • 亚太地区 
   
性能特点 • 良好的表面光洁度 • 食品接触的合规性 
 • 流动性高 • 收缩性低 
   
用途 • 阀门/阀门部件 • 零件装置 
 • 管道系统 • 密封 
   
机构评级 • FDA 21 CFR 177.1550  
形式 • 颗粒料  
加工方法 • 烧结 • 压缩模塑 

物理性能 额定值单位制 测试方法
比重 2.16g/cm³ ASTM D792
表观密度 0.90g/cm³ ASTM D1895
收缩率 - 流动 2.7% ASTM D955
机械性能 额定值单位制 测试方法
抗张强度 27.6MPa ASTM D638
伸长率 (断裂) 300% ASTM D638
热性能 额定值单位制 
熔融温度 327 到 342°C 
补充信息  
Powder Flow, ASTM D1855 Modified: 450 g/min  
Average Particle Size, ASTM D4894: 400 µm  

备注
1 一般属性：这些不能被视为规格。

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