Milky White Polyester Film
Type: 6021 Motor Polyester Film
Insulation class: E
Color: White
Conventional width: 1000mm
Conventional thickness: 0.15-0.35mm
Description
Type: 6021 Motor Polyester Film
Insulation class: E
Color: White
Conventional width: 1000mm
Conventional thickness: 0.15-0.35mm
Polyester film is made from Polyethylene terephthalate(PET) by casting & Biaxially oriented.
| Item | Unit | Index value | ||||||
| Nominal thickness | um | 125 | 150 | 190 | 250 | 300 | 350 | |
| Thickness deviation | um | ±10% | ||||||
| Wide format | m | 1m, Special width can cut | ||||||
| Density | Kg/m3 | 1400±10 | ||||||
| Melting point | ℃ | ≥256 | ||||||
| Relative permittivity | 48Hz～62Hz | / | 2.9～3.4 | |||||
| 1KHz | 3.2±0.3 | |||||||
| Dielectric loss | 48Hz～62Hz | ≤3.0×10-3 | ||||||
| factor | 1KHz | / | ≤6.0×10-3 | |||||
| Volume resistivity | Ω·m | ≥1.0×1014 | ||||||
| Surface resistivity | Ω | ≥1.0×1013 | ||||||
| Electrolytic corrosion | Visual | / | A1 | |||||
| Stretched wire | ％ | ≤2 | ||||||
| Dimensional stability at high | Under tension | ≥200 | ||||||
| temperature | Under pressure | ℃ | ≥200 | |||||
| Thickness | um | 100～250 | ＞250 | |||||
| Tensile strength (MD or TD) | MPa | ≥140 | ≥110 | |||||
| minimum | ||||||||
| Elongation at break (MD or TD) | % | ≥80 | ≥80 | |||||
| minimum | ||||||||
| Shrinkage（lengthways or crosswise | % | ≤3.0 | ≤2.0 | |||||
| maximum | ||||||||
| Nominal thickness | um | 125 | 150 | 190 | 250 | 300 | 350 | |
| Power frequency electrical strength | V/um | 80 | 75 | 65 | 60 | 55 | 50 | |
| Long-term heat resistance | ℃ | T1≥130；End point standard: tensile strength maintains | ||||||
| the starting value10% | ||||||||
Advantage:
Polyester film has a heat resistance grade of E (120 ° C). It is an opaque film with good flexibility, high mechanical strength and dielectric properties, uniform thickness and shiny surface.
Application:
Polyester film is widely used for the end wrap insulation, liner insulation of electrical oils, electromagnetic wire wrap insulation, cable wrapping on motor, transformer or other electrical appliances. It also be used for packaging, glass-steel, collar of clothes, etc.
Notice:
1. During slitting and use, edge gaps and cracks should be prevented to avoid tearing during operation and to avoid surface scratches, oil and dust pollution.
2. Store in an environment below 40℃, keep clean and dry, away from heat sources, and avoid direct sunlight.
3. The storage period is one year. If it exceeds the storage period, it can still be used if it passes the test according to the technical requirements.
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