PRODUCTS

Polyester Film

    详细说明



    Description

    POLYESTER FILM is a polyethylene terephtalate based transparent flexible polyester film which

    becomes cloudy with increasing thickness.     

                                                                            

    Properties

    POLYESTER FILM provides the electrical industry with unique design and construction options due to the outstanding balance of its electrical properties in combination with chemical, thermal and physical properties.

    The polyester film is characterised by its excellent resistance to moisture and common solvents.

    It can be used at temperature of -70oC to 150oC. since it does not contain any softening agents, it does not become brittle with age when use in normal conditions.


    Application 

    According to the manufacturers specification POLYESTER FILM is used in class B (130oC) systems by numerous manufacturers of electrical motors.  POLYESTER FILM is use as slot insulation, phase insulation and wedges for motors and generators.  POLYESTER FILM is use as core, interlayer and final insulation for transformers, chokes and relays.


    Delivery form  

    Film thickness range

    Width

     KGS/Roll

    Colore

    0.023mm

    1000mm

    1270mm

    1150mm

    550KGS/Roll 

    1100KGS/Roll

    200KGS/Roll

     

    Transparent

    Milky White

    Hazy color

    Black color

    White color

    0.036mm

    0.050mm

    0.075mm

    0.100mm

    0.125mm

    0.190mm

    0.250mm

    0.350mm

     



    Technical Value 

    Total Thickness

    unit

    23

    36

    50

    75

    100

    125

    190

    250

    350

    Test Method

    Specific weight

    g/m2

    32

    50

    70

    105

    140

    175

    265

    350

    480


    Tensile Strength

    Longitudinal

     

    MPa

     

     

    210

     

    230

    190

    190

    190

    180

    190

    190

    190

    ASTM

    D882

    Transversal

    MPa

    230

    260

    210

    200

    200

    200

    220

    299

    190

    ASTM

    D882

    Elongation at break

    Longitudinal

    %

     

    130

     

    130

     

    140

     

    140

     

    150

     

    150

     

    190

     

    210

     

    240

    ASTM

    D882

    Transversal

    110

    110

    120

    120

    120

    130

    140

    170

    200

    ASTM

    D882

    Shrinkage

    30 minutes at 150oC

     

    Longitudinal

     

     

    %

     

    1.3

     

    2.0

     

    1.2

     

    1.1

     

    1.1

     

    1.1

     

    1.3

     

    1.3

     

    1.3

    ASTM

    D1204

    Transversal

    1.0

    1.7

    1.1

    1.0

    1.0

    1.0

    1.3

    1.3

    1.3

    ASTM

    D1204

    Shrinkage

    30 minutes at 250oC

     

    Longitudinal

    %

    4.0

    7.0

    2.8

    2.5

    2.5

    2.5

    3.5

    3.5

    3.5

    ASTM

    D1204

    Transversal


    3.0

    6.5

    2.5

    2.3

    2.3

    2.3

    3.3

    3.3

    3.3

    ASTM

    D1204

    Dielectric Strength

    kV

    44

    5

    8

    10

    12

    13

    17.5

    19

    20

    ASTN

    D149

    Dielectric Constant

    AC 50 Hz, 25oC


    3.3

    ASTM

    D150

    Dielectric Loos factor

    AC 50 Hz , 25Co


    0.025

    ASTM

    D150

    Specific volume

    Resistance at 25oC

    ?.cm

    1018

    ASTM

    D227

    Specific surface

    Resistance

    ?.cm

    1016

     

    23oC 30%r.m

    Specific surface

    Resistance

    ?.cm

    1016

    23oC

    80% r.m.

     

    Any requests,please feel free to contact with us .