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Presspaper With Polyester Film produced by Hanyao supplier is the common name for thin, light blue electrical insulating paperboard. It is made from pulp of wood fiber or a mixture of wood and cotton fibers through a specific process. The commonly used colors for thin electrical insulating paperboard are yellow and light blue. Yellow is commonly known as yellow-shell paper, and light blue is commonly known as light blue-shell paper.
| Item | Unit | Requirement | |||||||||
| Thickness | mm | 0.15 | 0.17 | 0.2 | 0.22 | 0.25 | 0.27 | 0.3 | 0.4 | 0.5 | |
| Thickness deviation | mm | ±0.02 | ±0.03 | ±0.04 | ±0.05 | ||||||
| Density | g/m2 | 190±28 | 215±32 | 250±38 | 275±40 | 310±46 | 330±50 | 370±55 | 490±73 | 610±90 | |
| Base film thickness | um | 36 | |||||||||
| Tensile Strength | MD no bending | N/10m m | ≥135 | ≥150 | ≥170 | ≥190 | ≥210 | ≥240 | ≥270 | ≥320 | ≥410 |
| MD after bending | ≥80 | ≥90 | ≥100 | ≥120 | ≥130 | ≥140 | ≥150 | ≥230 | ≥300 | ||
| TD no bending | ≥80 | ≥90 | ≥100 | ≥110 | ≥120 | ≥130 | ≥140 | ≥200 | ≥260 | ||
| TD after bending | ≥60 | ≥60 | ≥80 | ≥80 | ≥80 | ≥90 | ≥100 | ≥130 | ≥170 | ||
| Elongation | MD | % | ≥2 | ≥3 | |||||||
| TD | ≥8 | ≥10 | |||||||||
| Breakdown voltage | Not bending | kV | ≥7 | ||||||||
| After bending |
|
≥6 | |||||||||
| Delamination | — | No Delamination, no bubble or other defects | |||||||||
| Affected by heat（130±2℃） 10min |
|
No Delamination, no bubble, no adhesive flow | |||||||||
| Long-term heat resistance |
|
≥120 | |||||||||
| (temperature index TI) | |||||||||||
| Weight and area conversion | m2/Kg | 6.23 | 5.21 | 4.68 | 4.24 | 3.74 | 3.46 | 3.12 | 2.34 | 1.87 | |
Disclaimer: The performance figures, parameters, and features described are typical values under specific test conditions and may vary in actual applications. They do not constitute a warranty or guarantee of performance under all conditions. Users are responsible for verifying the suitability of the product for their intended application.
1.Presspaper With Polyester Film is able to withstand temperature upto 120℃
2.It has high mechanical strength and excellent dielectric property
3.It has two colors generally dark green and light yellow.
4.It is used for slot insulation, cover plates or caps, suspensions, phase-to-phase insulation and layer insulation in dry-type transformers and motors.
This Presspaper With Polyester Film has good mechanical strength, high electrical strength and a smooth and tough surface. It is widely used as an insulating material for motors, electrical appliances, instruments and meters and can also be used to manufacture 6250 polyester film composite foil. It has high mechanical and tensile strength easily bended without any cracks;It has light weight, about half the weight of aluminum.
In addition,it also has excellent electrical properties, ideal arc resistance, tear resistance; with beneficial properties of metals, plastics, rubber and leather; Environment friendly, has no threat to nature.
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No. 35, Dongfu Road, Industrial Area, Suzhou City, Jiangsu Province, China
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For inquiries about Electrical Insulation Materials On Oil Type Transformers, Electrical Insulation Materials On Dry Type Transformers, Electrical Insulation Materials On Motors or price list, please leave your email to Hanyao and we will be in touch within 24 hours.
