6012/6013/6014 BOPP Polypropylene Film for Capacitors

This film is made from polypropylene resin through melting, casting and biaxial stretch via tenter process.

6012 is one kind of single side roughed film ( The code is RP) 6013 is one kind of both sides roughed film ( The code is RRP) 6014 is one kind of Corona-treated smooth film ( The code is MP)

6014-H is one kind of high temperature-proof Corona-treated smooth film (MP).

The film possesses good mechanical and electric properties; especially it has low dielectric dissipation factor as well as excellent high-frequency characteristics. It has passed SGS test for toxic and hazardous substance detection.

6012/6013 is applicable to film/paper mixed dielectric capacitor and all-film dielectric capacitor as dielectric material. 6014 is used as base material of metallization.

1    Performance Requirements

1.1     Appearance

The surface of the film s hall be even and uniform, free of defects s uch as wrinkles, crackles, blist ers, particulate matter and extrinsic contaminants. The roll of film s hall be winded tightly and free of the teles copic phenomena.

1.2     Dimension

1.2.1     Thickness a nd allowed deviation ( The all thickness es s hown in this specification are as per micrometer method.)

1.2.1.1      Normal thickness (Recommended thicknesses are in yellow color): 

6012/6013 (By micrometer method):     6.0,8.0,9.0,10.0,11.0,12.0,13.0,14.0,15.0,16.0,18.0um

6014 (By micrometer method):              4.0,5.0,6.0,7.0,8.0,10.0,12.0,15.0um

6014  (By weight method)    :                3.8,4.8,5.8,6.8,7.8,9.8,11.8,14.8um)

6014-H (By micrometer method):          2.7,3.0,3.5,4.0, 5.0,6.0,7.0,8.0,10.0,12.0um

6014-H (By weight method):                  2.7,3.0,3.8,4.8,5.8,6.8,7.8,9.8,11.8um) 

Other thickness can be settled upon negotiation between sellers and buyers.

1.2.1.2      Allowed average deviation and individual deviation of thickness are as shown in Table 1

Table 1                         Allowed deviation of thickness

1.2.2      Width and allowed deviation

Width can be settled upon negotiation between sellers and buyers. The allowed deviation of width and the prolongation from the reel edge are as shown in Table 2.

Table 2 Allowed deviation  of width                                                        Unit:mm

1.2.3      Number of joints and the minimum length

Length of film or outside diameter of roll can be settled upon negotiation between sellers and buyers. There should be obvious marks at the place of joints. When the width   of film is   more than 50 mm, the number of joints and minimum length of   each   section   are   as   shown   in   Table   3.   Recommended inner diameter of roll core (I.D.) is 76mm or 152mm.

          Table 3                       Number of joints and the minimum length

1.3     Performance requirements are shown in Table 4 ~Table 10

Table 4                  Performance values and Typical values

Table 5               Thermal Shrinkage

Table 6 DC Dielectric Strength(Element Method)

Table 7 DC Dielectric Strength (50 points Electrode Method)

                                                                      Table 8 Electrical weak spots          

Table 9 Space Factors (SF) %

Table 10 Haze

2    Test Methods

2.1     Sampling, pretreatment and Testing Conditions

It should be in accordance with the relative stipulations in Part II of Test methods of plastic film for electric use

(IEC60674-2: 1988).

2.2     Appearance

Appearance should be checked by visual observation under the condition of natural light or 40W fluorescent lamp and handle feeling.

2.3     DC Dielectric Strength (50 points Electrode Method)

It should be as per the relative stipulations in Q/DJ₉-06-2018 Standard

2.4     Haze

It should be as per the relative stipulations in GB/T2410-1980 Standard.

2.5     Dielectric Dissipation Factor and Relative Dielectric Constant

It should be as per the relative stipulations in Part II of Test methods of plastic film for electric use (IEC60674-2: 1988). Test conditions: 48Hz~62Hz or 1kHz.

2.6     Surface Roughness Ra

It should be as per the relative stipulations in Part III of BOPP Film for Capacitors (GB/T13542.3-2006).

2.7 Other performance

The test method for other properties such as dimension, density, melting point, tensile strength, elongation at

break, volume res istivity, ther mal s hrinkage, DC dielectric strength(element method), electrical weak spots, Space Factor, wetting tension and windability and so on should be carried out in accordance with relative stipulations in Part III of BOPP Film for Capacitors (IEC60674-3-1:1998).

3    Inspection, Mark, Packing, Transportation and Storage

The product of same spec continuously manufactured with same raw materials and same process conditions is called one batch. For each batch, its quantity cannot exceed 20 tons at best.

3.1     Routine Test

Routine Test must be carried out for each batch product. The test items are Clause 1.1, 1.2 and Item 3, 4, 5, 6, 10, 12,

13 in Table 4.

3.2     Type Test

One type test should be carried out for three months at least, and when raw materials or process conditions are changed, type test must be carried out, too. The items of type test shall include all items in Clause 1.3.

3.3     Sampling stipulation

For Clause 1.1, 1.2.2 and 1.2.3, the roll should be inspected one by one.

For Clause 1.2.1, Item 11 and 12 in Table 4, sampling as per 5%, then test/inspect the specimen one by one.

For Item 1~10, 13, 14 and 15 of Table 4, take any one roll in a batch, then test.

For the film rolls whose width is 200mm and above, two specimens should be taken discretionarily in different range of one roll as per the cutting sequence for each batch film.

3.4     Judgment rule

If any performance is unqualified among testing results, taking specimens from another two rolls to test repeatedly. If both specimens are qualified, the film of that batch is qualified product. If there is still one unqualified specimen, then the film of that batch is unqualified product.

3.5     Test of Customer Check and Acceptance

The check and acceptance items of customer can be all items or partial items of this specification. The sampling quantity should be 5% of total film rolls purchasing at the same time. The sampling quantity should be not less than 5 rolls if total film rolls are less than 100 rolls. The judgment rule shall comply with Item 3.5.

3.6      The corona-treated surface or roughed surface of polypropylene film should be marked by visible label.

3.7      The storage life for polypropylene film should be 12 months from the date of leaving factory.

3.8     Others shall accord with the relative stipulations in GB/T13542.1-2009 Standard.

3.9      

4    Application remarks

Single side rough film 6012 (RP) is applicable for film/paper mixed or all-film dielectric capacitors.

Both sides rough film 6013 (RRP) is applicable for all-film dielectric capacitors. It is also used for the film/paper mixed dielectric capacitors.

Corona-treated smooth film 6014(MP)is applicable for base material of metallization.

6014-H (MP) is applicable for base material of metallization. The film possesses improved performance at higher temperature.