Introduction（产品简介）

3M清洗剂HFE-72DA是由HFE-7100，HFE-7200，异丙醇和反式二氯乙烯组成的混合物。HFE-72DA是共沸混合物，通过分析可以看出HFE-72DA在液相和气相均保持组成比例一致。所以HFE-72DA可以应用于中等及重油污的清洗及助焊剂残留的去除。

HFE-72DA是理想的电子及精密清洗剂。HFE-72DA可以替代CFC,HCFC,HFC,NPB,氯化溶剂等对臭氧有破坏，温室效应高以及对身体健康影响大的溶剂。

由于添加了异丙醇和反式二氯乙烯，其溶解能力大大提高，且HFE-72DA具有低表面张力，而且十分稳定，故HFE-72DA应用于浸洗或超蒸汽气相清洗剂。在HFE-72DA中加异丙醇，可以增加其对于离子残留的清洗！

3M Novec Engineered Fluid HFE-72DA is a blend of hydro?uoroether methyl nona?uorobutyl ether (C4F9OCH3), ethyl nona?uorobutyl ether (C4F9OC2H5), trans- 1,2-dichloroethylene (t-DCE) and isopropanol. This mixture of solvents is a blend of azeotropes. The blend has been analyzed during evaporation and extended use in a vapor degreaser and found to have a consistent composition that is effective for medium- to heavy-duty degreasing and de?uxing applications.

Novec ?uid HFE-72DA is ideal for a wide range of electronics and other precision cleaning applications. It is intended to replace CFCs, HCFCs, HFCs, nPB and chlorinated solvents. This Novec product has zero ozone depletion potential and other favorable environmental, health and safety properties (see Table 2).

The high solvency, low surface tension, non?ammability and stability of HFE-72DA ?uid make it ideal for immersion and vapor degreasing applications. The isopropanol in HFE-72DA ?uid provides enhanced removal of ionic contaminants.

Typical Applications典型应用

Cleaning, rinsing and drying agent清洗、漂洗及干燥溶剂
Cleaning of rosin solder ?ux residues, oils, greases and waxes

物理化学性质Typical Physical Properties– Table 1

环境及安全性质Environmental and Safety Properties- Table 2???????