Diamond Dotted PMP Foil
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- Details
This product is to coat the modified epoxy resin on insulating PMP foils in diamond shape.The material is mainly used for insulation between coils of medium and low voltage transformer lines,at the mold temperature 90℃,the foil can be bonded with the wire in 2 seconds;During winding process,the foil will protect the wired form any displacement,with the premises to guarantee the coils'electrical properties and the mechanical properties.This environmental friendly product will increase the yield and the efficiency ,and decrease the production costs of coils,without any pollution.
Product Solidification Conditions<Actual coil temperature>
First of allto cure under ttemperature 90℃±5℃ for 3 hours,and then rise temperature to 125℃±5℃ and keep 6 hours to cure.
Storage
The product should be stored in dry,clean and well-ventilated warehouse under 25℃.The fire,heat sources and direct sunshine should be avoided.The shelf life is recommended to be six months.The longer storage period must be approved by lab test before using.
| No. | Property | Unit | Requirements | ||||
| 1 | Nominal thickness | mm | 0.05 | 0.06 | 0.07 0.08 | 0.10 | |
| 2 | Tolerance of thickness | mm | ±0.005 | ±0.006 | ±0.007 | ±0.008 | ±0.01 |
| 3 | Thickness of single side adhesive | Hm | 6~10 | ||||
| 4 | Grammage tolerance | g/m² | 65±6 | 90±9 | 100±10 | 110±10 | 150±15 |
| 5 | Tensile strength MD | N/10mm Width | ≥45 | ≥60 | ≥70 | ≥80 | ≥100 |
| 6 | Bonding period at 90℃ mold temp. | 2 | |||||
| 7 | Bonding strength | kPa | ≥650 | ||||
| 8 | Breakdown Voltage | kV | ≥4 | ≥6 | ≥7 | ≥8 | ≥10 |
