6021 polyester film

Product features：
1. High transparency and gloss:
Polyester films are usually transparent and glossy films with high light transmittance and low haze, which makes them widely used in occasions requiring good visual effects (e.g. packaging, display, etc.).
2. Excellent mechanical properties:
Polyester film has high strength, high modulus and high toughness, which can withstand large mechanical stress and is not easy to break and deform. This enables it to be used as a reliable support and protection material in packaging, printing, electronics and other fields.
3. Good chemical stability:
Polyester film has good resistance to a variety of chemicals and is not easily corroded or dissolved. This enables it to maintain stable performance in the chemical industry, food processing and other fields.
4. Excellent temperature resistance:
Polyester film has a wide range of temperature resistance and is usually able to maintain stable performance in both high (e.g., 200°C) and low (e.g., -70°C) environments. This makes it widely used in applications that need to withstand extreme temperature changes (e.g., electronic equipment, automotive parts, etc.).
5. Good electrical insulation:
Polyester film has excellent electrical insulation properties and can be used as an insulating material for electrical equipment to prevent current leakage and short-circuit phenomena.
6. Air tightness and fragrance retention:
Polyester film has good airtightness and aroma retention, which can effectively protect the products inside the package from outside oxygen, moisture and odor.
7. High processability:
Polyester film can be processed by various processing methods (such as printing, aluminizing, laminating, etc.) to meet the needs of different fields and occasions.
8.Environmentally friendly:
The high decomposition degree and solubility of polyester film make it also have advantages in environmental protection, which will not cause serious pollution to the environment.
Product Technical Parameters：

Serial Number	Indicator Name			Units	Indicator value
1	Tensile strength(Vertical and horizontal)		25-100㎛	MPa	≥150
			>100-190㎛		≥140
			>190㎛		≥110
2	Elongation at break(Vertical and horizontal)		25-50㎛	％	≥60
			>50-350㎛		≥80
3	Shrinkage rate(Vertical and horizontal)		25-190㎛	％	≤3.0
			>190㎛		≤2.0
4	Volume resistivity			Ω•m	≥1.0*1014
5	Relative permittivity（50Hz)			－	2.9-3.4
6	Dielectric loss factor（50Hz)			－	≤5.0*10-3
7	Density			kg/m3	6020	6021
					1390±10
8	Melting point			℃	≥256
9	Surface resistivity			Ω	≥1.0*1013
10	Electrolytic corrosion	Visual estimation method		Level	A1
		Metal wire tensile strength method		％	≤2
11	Dimensional stability under high temperature conditions	Under tension		℃	≥200

Application Scene：
（Dry-type transformer applications）

（Motor applications）

Shipment site：