PTFE美国杜邦7A

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PTFE品名：PTFE美国杜邦7A 耐酸碱聚四氟乙烯悬浮细微粉树脂。

PTFE美国杜邦7A 物理性能表：
产品参数
性能项目 试验条件[状态] 测试方法 测试数据 数据单位
基本性能 比重 ASTM D790 2.15 g/cm3
成形收缩率 ASTM D955 3.4 %
机械性能 拉伸强度 ASTM D638 34.5 MPa
拉伸伸长率 Break ASTM D638 380 %
PTFE美国杜邦7A

耐化学性
食物接触可接受
好的刚度
高伸长率
低摩擦
低烟雾排放
耐溶剂性

PTFE美国杜邦7A 耐酸碱聚四氟乙烯悬浮细微粉树脂 英文描述：

PTFE美国杜邦7A is a white powder with small particle size and high bulk density. The small particle size of PTFE美国杜邦7A helps to minimize voids even at relatively low molding pressures. High bulk density increases the size of moldings possible from a given mold or press opening. PTFE美国杜邦7A is preferred for large moldings, such as billets, requiring optimum mechanical and electrical properties. It is also used in a mixture with fillers when they are added to modify the mechanical properties of moldings. Properly processed products made from neat Teflon ®PTFE 7A X provide the superior properties typical of the fluoroplastic 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 anti-stick surfaces. Dielectric properties are outstanding and stable with frequency and temperature. Molded products have moderate stiffness and high elongation.


PTFE美国杜邦7A 典型应用：
它可以用到生产：刮板，垫片，垫片，填料，机械密封，桥梁或管道轴承垫，轴承，电绝缘子，活塞环，膨胀波纹管，隔膜和化学衬里。填料的使用提供了广泛的改性机械性能。