DuPont™ Teflon ® PFAD 335D is an off-white aqueous perfluoroalkoxy (PFA) dispersion stabilized with a non-ionic surfactant. It is a general-purpose dispersion that can be used to impart some the unique properties of PFA 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.

The PFA resin in PFAD 335D is a melt flowable thermoplastic, providing superior properties typical of fluoropolymer resins: retention of properties after service at 260 °C (500 °F) and useful properties at -240 °C (-400 °F).

PFAD 335D aqueous dispersion provides:

• inertness to nearly all industrial chemicals and solvents

• stability at high temperatures

• excellent dielectric properties

• excellent weatherability

• excellent anti-stick properties

Typical Applications

• Heat-sealable top coatings for PTFE-coated fabrics for belting, circuit boards, architectural fabrics and electrical insulation

• Cast film for capacitor dielectrics or chemical barriers

• Holt melt adhesive for PTFE, PFA and FEP parts

• Metal coatings
• eflon® PFA D 335D 物性表

  基本信息
  特性	抗溶剂性 良好的电气性能 耐化学性良好 耐气候影响性能良好 食品接触的合规性 无粘性
  用途	薄膜 流延薄膜 涂层应用 粘合剂
  机构评级	FDA 21 CFR 177.1550 欧洲 10/1/2011 12:00:00 AM
  形式	分散
  加工方法	浸渍涂布法 可喷涂 流延薄膜 涂层

  物理性能	额定值	单位制	测试方法
  密度 1	1.50	g/cm³	ISO 12086, ASTM D4441
  熔流率（熔体流动速率） (372°C/5.0 kg)	2.0	g/10 min	ASTM D2116, ISO 12086
  pH值
  --	10.0		ASTM E70
  --	10.0		ISO 1148
  固体含量 - % PFA by weight
  --	60	%	ASTM D4441
  --	60	%	ISO 12086
  平均颗粒尺寸	200	nm	内部方法

  充模分析	额定值	单位制	测试方法
  布络克菲尔德粘度
  25°C	25	mPa·s	ASTM D2196
  25°C	25	mPa·s	ISO 2555

  补充信息	额定值	单位制	测试方法
  Surfactant Content - based on PFA solids
  --	6.0	%	ISO 12086
  --	6.0	%	ASTM D4441

  热性能	额定值	单位制	测试方法
  熔融温度	305	°C	ISO 12086, ASTM D2116