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Hydrophilic Aluminium Foil
1.Definition of Hydrophilic aluminium foil
Hydrophilic aluminium foil is a kind of hydrophilic treatment aluminium foil, through a special technology process, hydrophilic layer shall conver on its surface, if the condensate on the hydrophilic aluminium foil will quickly spread, will not condense into water droplets, and will not increase heat exchange Area,so as to speed up the cooling heating rate, and also effectively avoid the condensation of air caused by air flow noise.
2.Application of Hydrophilic aluminium foil
Hydrophilic aluminium foil is the main raw material of home air conditioning heat exchanger,
it has a great impact on the efficiency of air conditioner. If the heat exchanger raw materials is the hydrophilic aluminium foil, can improve 5% cooling efficiency , and also has the functions of anti-corrosion ,anti-mold,and no smell , will not cause the accumulation of water droplets affect the heat transfer. As no water droplets, the corresponding also reduces the noise caused by vibration; to prevent air conditioning powder are blown in the indoor ,to cause the adverse effects on the human body, in line with environmental requirements. The hydrophilic aluminium foil for air conditioner shall be in accordance with YS / T95.2 --- 2001.
3.Alloy ,Temper,and Mechanical Property of Hydrophilic aluminium foil:
| Alloy | Temper | Indoor Mechanical Property | ||
| Tensile Strength |
Elongation （%） |
Cupping Test Value | ||
|
1100 8011 3102 1030B |
O | 80～100 | ≥20 | ≥6.0 |
| H22 | 100～135 | ≥16 | ≥5.5 | |
| H24 | 115～145 | ≥12 | ≥5.0 | |
| H26 | 125～160 | ≥8 | ≥4.0 | |
| H18 | ≥160 | ≥1 | --- | |
| Thickness and thickness Tolerance(mm) | Width and Width Tolerance(mm) | ID(mm) |
Max OD (mm) |
Colors | ID Material |
|
0.095～0.50 (±0.005) |
50～1250 (±0.5) |
￠75、￠150、 ￠200 ￠300 ￠400 ￠500 |
￠≤1400 |
Blue,Golden， Black,Green，Rosy Red,etc. |
Paper core、aluminium core |
| No | Project Indicator | Technology Indicator | |
| 1 | Coating thickness | 1.0~3.0UM（The Average Thickness of Single Side） | |
| 2 | Hydrophilia | The Initial Hydrophilic Angle | The Initial Hydrophilic Angle ≤5 |
| 3 | Continuous Hydrophilic Angle | Continuous Hydrophilic Angle≤25 | |
| 4 | Adhesive Force |
Cupping Test（pressure deep 5mm):No Flaking: Grid experiment（100/100）：No Delaminating |
|
| 5 | Corrosion Resistance | Salt fog test（72 Hours）R.N≥9.5 | |
| 6 | Alkali Resistance | With 20 degree centigrade 、soak in the 20%NaOH with 3 Minutes，the sample coating layer totally no frothing | |
| 7 | Solvent Resistance | Weight loss of Sample≤1% | |
| 8 | Heat Resistance | Under 200 degrees Celsius,Keep for 5 minutes，Properties and the color remains the same;Under 300 degrees Celsius,Keep for 5 minutes,Coating layer just become light yellow. | |
| 9 | Oil Resistivity | In the volatile oil soaked for 24 hours,Coating layer has no frothing | |
| 10 | Coating Smell | No off-smell | |
| 11 | To the mold wear | Same as the ordinary aluminium foil | |
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