销售代理Teflon 121A美国杜邦FEP溶液、进口高性能FEP乳液、热熔粘接剂粘合剂用FEP溶液、氟塑料FEP水性分散液、耐磨防腐蚀FEP特氟龙
DuPont Teflon 121A FEP Dispersion
简介：该型号为FEP水分散体，FEP固体含量54%（质量分数），用于金属涂层、防腐涂层、热熔粘合剂(PTFE与FEP基材之间、或FEP与FEP基材之间)、流延膜、耐热涂料涂层原料等。

主要特性：
粒径细，仅为200纳米；
超光滑面漆；
提供了一种表面热焊接性；
薄膜具有高度透明性；
提供良好的化学稳定性和广泛的化学抗性；
耐热及耐低温性；
可以与氟塑料分散制定（包括PTFE和PFA），以及各种填料和颜料分散；
改善附着力和防腐蚀；
符合美国FDA食品接触认证。

Teflon? FEP 121A fluoropolymer resin (formerly called TE-9535) is a colloid containing approximately 54% (by total weight) of 0.1 to 0.30 mm fluorinated ethylene propylene (FEP) particles suspended in water. It also contains approximately 6% (by weight of FEP resin) of volatile, nonionic, and anionic wetting agents. Color is off-white and nominal pH is 9.5. Viscosity at room temperature is approximately 25 cP.

Teflon? 121A is a general-purpose dispersion. It can be used to impart some of the unique properties of Teflon? FEP resin to end products that would be difficult to make using traditional melt extrusion processes. It can be used to coat or impregnate porous structures or to make thin films. It can be coated and melt bonded to polytetrafluoroethylene (PTFE) resin or used as a hot melt adhesive.

Teflon? FEP 121A is an improved version of Teflon? FEP 120. It utilizes the same base resin as Teflon? FEP 120 and has the same excellent wetting characteristics. It has been improved to reduce the rate of sedimentation and thus prolong the storage life.

The Teflon? FEP resin in Teflon? 121A is a true thermoplastic, providing superior properties typical of the fluoropolymer resins: retention of properties after service at 204°C (400°F), useful properties at –240°C (–400°F), chemical inertness to nearly all industrial chemicals and solvents, and excellent dielectric properties. Refer to Table 1 for typical property data.

Applications

Teflon? FEP 121A is suitable for many end products, including: heat-sealable top coatings for PTFE-coated fabrics used for belting, circuit boards, or electrical insulation; cast film for capacitors or chemical barriers; and as a hot melt adhesive for bonding molded PTFE or FEP parts to themselves or to each other.




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货物保护：一般原料均会套外包，防止快递物流不当处理导致包装破坏。
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发piao说明：可开具普通发piao、3%增值税piao、17%增值税piao（金额≥3000元）均为机打发piao。


FEP是四氟乙烯和六氟丙烯共聚而成，又叫聚全氟乙丙烯共聚物。
FEP结晶熔化点为580 ℉ ，密度为2.15g／CC（克／立方厘米），它是一种软性塑料，其拉伸强度、耐磨性、抗蠕变性低于许多工程塑料。它是化学惰性的，在很宽的温度和频率范围内具有较低的介电常数（2.1）。该材料不引燃，可阻止火焰的扩散。它具有优良的耐候性，摩擦系数较低，从低温到392 ℉ 均可使用。该材料可制成用于挤塑和模塑的粒状产品，用作流化床和静电涂饰的粉末，也可制成水分散液。半成品有膜、板。棒和单纤维。其主要的用途是用于制作管和化学设备的内村、滚筒的面层及各种电线和电缆，如飞机挂钩线、增压电缆、报警电缆、扁形电缆和油井测井电缆。FEP膜已见用作太阳能收集器的薄涂层。