6011/6012/6013 Polypropylene Film

for Power Capacitors

Standard No.: GB/T12802—1996

Polypropylene film for power capacitors is made from isotactic polypropylene resin which is melt and extruded into thick wall tube, the thick wall tube must be biaxially oriented and inflated.

6011 is one kind of slippery and transparent film (SB)

6012 is one kind of one side-roughed film (RB)

6013 is one kind of two side-roughed film (RRB)

The film has good mechanical and electrical properties, low dielectric dispassion factor, excellent high frequency characteristics.

1 Technical requirements

1.1 Appearance

The surface of the film should be smooth, the film should be free of defects such as creases, laceration, bubbles, dents and contaminations.

1.2 Dimension

1.2.1 Thickness and tolerance

1.2.1.1 Thickness

Nominal thickness: 10.5μm、12μm、14μm、15μm、16μm、17μm、18μm、19.5μm.

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

1.2.1.2 Thickness tolerance

Be as shown in Form 1

Form 1 Thickness tolerance

Nominal thickness μm	Tolerance %
	6011		6012，6013
	Mean	One or two	Mean	One or two
10.5～12.0	±4	±11	±5	±13
12.0～19.5	±4	±10	±5	±12

1.2.2 Width and tolerance

Special requirements for width can be settled upon negotiation between sellers and buyers. The film width tolerance and outside diameter of roll are as shown in Form 2

Form 2 Width tolerance mm

Width	Width tolerance	Outside diameter of roll
50～150	±0.5	≤1.5
＞150～300	±1.0	≤2.0
＞300	±2.0	≤2.5

1.2.3 Length or outside diameter of roll and splices

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 splice. When the width of film is more than 50 mm, the splices and minimum length of every roll are as shown in Form 3. Recommended inside diameter is 76.152mm.

Form 3 Splices and minimum length

Nominal thickness μm	Splices		The minimum length m
	Outside diameter≤250mm	Outside diameter≥250mm
10.5～12.0	≤3	≤4	≥300
＞12.0～19.5	≤2	≤4

1.3 Properties

The physical, mechanical and dielectrical properties of film are shown in Form 4 ～Form 9.

Form 4 Properties

No.	Properties			Units	Values
					6011	6012	6013
1	Tensile strength	MD		MPa	≥140	≥120
		TD			≥150	≥140	≥130
2	Elongation at break	MD		%	≥40
		TD			≥30
3	Shrinkage	MD		%	≤5.0
		TD			≤4.0
4	Volume resistivity			Ω·m	≥1.0×10¹⁵
5	Dielectric dissipation factor 23℃±2℃	48Hz～62Hz		—	≤3.0×10^-4
		1.0kHz
6	Relative dielectric constant 23℃±2℃	48Hz～62Hz		—	2.2±0.2
		1.0kHz
7	Density			g/cm³	0.905±0.005
8	Melting point			℃	165 ～ 175
9	Surface roughness Ra			μm	—	0.25 ～ 0.65
10	Porosity			—	Be as shown in Form 5
11	Haze			—	Be as shown in Form 6
12	DC dielectric strength		50 points electrode method	—	Be as shown in Form 7
			Element method	—	Be as shown in Form 8
13	Electrical weak spots			—	Be as shown in Form 9
Note: Special requirements can be settled upon negotiation between sellers and buyers.

Form 5 Porosity Unit：%

Nominal thickness （μm）	Mean	Max	Min
10.5 ～12.0	9.0±3.0	≤15	≥5.0
＞12.0 ～ 19.5	10.0±3.0	≤17	≥5.0

Form 6 Haze Unit：%

Nominal thickness（μm）	Mean	Min
10.5 ～12.0	≥ 18	——
＞12.0 ～ 15.0	≥ 30	≥ 24
＞15.0～19.5	≥ 35	≥ 25

50 points electrode method Unit： V/μm

Nominal thickness （μm）	6011		6012、6013
Nominal thickness （μm）	Mean	Min	Mean	Min
10.5	≥400	≥300	≥400	≥300
12.0、14.0	≥450	≥370	≥420	≥320
15.0、16.0	≥480	≥380	≥470	≥370
17.0、18.0、19.5	≥470	≥370	≥470	≥370

Element method Unit： V/μm

Nominal thickness （μm）	6011		6012、6013
Nominal thickness （μm）	Mid- values	One of 21 results is allowed to be less than the stipulated values.	Mid- values	One of 21 results is allowed to be less than the stipulated values.
10.5	≥290	165	≥270	145
12.0、14.0	≥300	175	≥280	155
15.0、16.0	≥320	185	≥300	165
17.0、18.0	≥300	195	≥280	175
19.5	≥300	200	≥280	180

Form 9 Electrical weak spots Unit： /m²

Nominal thickness（μm）	10.5	≥12.0
Values	≤0.6	≤0.5

2 Testing method

As per GB/T12802-1996

3 Inspection, marks, package, transportation and storage

3.1 Inspection items are as per Clause 1.1, 1.2 and Item 1, 2, 3, 10, 12, 13, 9 or 11 in Form 4 of 1.3.

3.2 The storage life: one year from the date of dispatch.

3.3 Other items are as per GB 13542-1992.

4 Remarks

Smooth film (6011) For the film-paper complex dielectric capacitor

One side-roughed film(6012) For the film-paper complex or all film dielectric capacitor

Two side-roughed film(6013) For the all film dielectric capacitor, also for the film-paper complex dielectric capacitor