3M HFE-71DA電子清洗劑/精密清洗劑

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更新時間：2022-04-18 10:20:57瀏覽次數(shù)：243次

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產(chǎn)品簡介

Introduction產(chǎn)品簡介3M清洗劑HFE-71DA是由HFE-7100，乙醇及反式二氯乙烯組成的共沸化合物

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Introduction產(chǎn)品簡介

3M清洗劑HFE-71DA是由HFE-7100，乙醇及反式二氯乙烯組成的共沸化合物。HFE-71DA沸騰時，蒸汽和液體組成一樣。HFE-71DA非常適合助焊劑去除和油污脫脂，主要用于替代臭氧破壞物質，和其他水基清洗和溶劑清洗一樣。其不會破壞臭氧，對環(huán)境不會造成破壞。
HFE-71DA具有低表面張力，單一沸點，非常適合浸沒清洗助焊劑殘留和脫脂去污，加入乙醇，是的HFE-71DA可以很好的去除一些例子殘留。

3M Novec 71DA Engineered Fluid is a hydrofluoroether, Methyl Nonafluorobutyl Ether (C4F9OCH3), in an azeotrope formulation with trans-1,2-dichloroethylene (t-DCE) and ethanol. This mixture is a true azeotrope, with constant vapor and liquid composition at its boiling point.
Novec 71DA fluid is ideal for defluxing and degreasing tasks and is intended to replace ozone-depleting materials in many applications as well as certain aqueous cleaning processes and solvent coating applications. This Novec product has zero ozone depletion potential and other favorable environmental properties (see Table 2).
Novec 71DA fluid has a recommended time-weighted average exposure guideline of 750 ppm for the 3M Novec 7100 Engineered Fluid component (eight hour average), 200 ppm for trans-1,2-dichloroethylene (t-DCE) and 1000 ppm for ethyl alcohol. These exposure guidelines suggest there is a large margin of safety for use of Novec 71DA fluid in its intended cleaning applications.
The increased solvency and low surface tension, nonflammability and constant composition during boiling of Novec 71DA fluid make it ideal for immersion defluxing and degreasing applications. The ethanol component of Novec 71DA fluid provides enhanced removal of ionic contaminants.

Applications產(chǎn)品應用

- Cleaning, rinsing and drying agent; coating solvent 清洗，漂洗，干燥以及涂層溶劑
- Cleaning of oils, greases, waxes, handling oils and solder flux residue 清洗油污，油脂，助焊劑殘留
- Precision coating of silicones and other lubricants硅油及其他潤滑劑的溶劑或稀釋劑

物理化學性質Typical Physical Properties– Table 1

性質	HFE-71DA	Freon TE	Genesolv 2004	AK-225ASE	Vertrel SMT
沸點℃	40	45	29.4	52	37
冰點℃	-29	-42	N/A	-138	N/A
液體密度g/ml@25℃	1.33	1.50	1.22	1.49	1.35
表面張力	16.4	17.7	18.5	16.8	15.5
KB值	33	40	76	41	N/A
粘度cps@25℃	0.45	0.65	0.45	0.61	0.49
蒸汽壓 mm Hg	381	362	527	414	486
揮發(fā)熱cal/g@bp	50	43	62	41	50

環(huán)境及安全性質Environmental and Safety Properties- Table 2

性質	HFE-71DA	Freon TE	Genesolv 2004	AK-225ASE	Vertrel SMT
臭氧破壞潛值ODP	0	0.77	0.11	0.03	0
溫室效應系數(shù)GWP	170	5800	670	400	900
閃點	無	無	無	無	無