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NB/T 10200-2019: Polyolefin insulating encapsulation film for crystalline silicon solar cell module
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Polyolefin insulating encapsulation film for crystalline silicon solar cell module
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NB/T 10200-2019
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Basic data | Standard ID | NB/T 10200-2019 (NB/T10200-2019) | | Description (Translated English) | Polyolefin insulating encapsulation film for crystalline silicon solar cell module | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | K15 | | Classification of International Standard | 29.035.99 | | Word Count Estimation | 16,129 | | Date of Issue | 2019-06-04 | | Date of Implementation | 2019-10-01 | | Issuing agency(ies) | National Energy Administration | NB/T 10200-2019: Polyolefin insulating encapsulation film for crystalline silicon solar cell module
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Polyolefin insulating encapsulation film for crystalline silicon solar cell module
ICS 29.035.99
K15
NB
Energy Industry Standards of the People's Republic of China
For crystalline silicon solar cell modules
Polyolefin elastomer (POE) packaging insulating film
2019-06-04 released
2019-10-01 implementation
Issued by National Energy Administration
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents.
This standard was proposed by China Electrical Equipment Industry Association.
This standard is under the jurisdiction of the National Insulation Material Standardization Technical Committee (SAC/TC 51).
The main drafting organizations of this standard. Suzhou Saiwu Applied Technology Co., Ltd., Suzhou Talesun Photovoltaic Technology Co., Ltd., Guangzhou Baoli
Da Electric Material Co., Ltd., Guilin Electrical Appliance Research Institute Co., Ltd.
Drafters of this standard..
Polyolefin elastomer (POE) packaging insulating film for crystalline silicon solar cell modules
1 Scope
This standard specifies the product classification, requirements, and tests of polyolefin elastomer (POE) encapsulated insulating film for crystalline silicon solar cell modules
Methods, inspection rules, packaging, marking, transportation and storage.
This standard is applicable to polyolefin elastomer (POE) packaging insulating film for crystalline silicon solar cell modules (hereinafter referred to as "POE packaging adhesive")
membrane").
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 191 Packaging, Storage and Transportation Graphic Mark
GB/T 1033.1-2008 Determination of the density of plastic non-foam plastics Part 1.Immersion method, liquid pycnometer method and titration method
GB/T 1408.1 Insulating material electric strength test method Part 1.Test under power frequency
GB/T 1410 Test method for volume resistivity and surface resistivity of solid insulating materials
GB/T 2410 Determination of light transmittance and haze of transparent plastics
GB/T 2790 Adhesive 180° peel strength test method Flexible material vs. rigid material
GB/T 3979 Method for measuring object color
GB/T 4207 Method for determination of tracking resistance index and comparative tracking index of solid insulating materials
GB/T 7921 Uniform color space and color difference formula
GB/T 13542.2-2009 Films for electrical insulation Part 2.Test methods
GB/T 21529 Determination of Water Vapor Transmission Rate of Plastic Films and Sheets by Electrolytic Sensor Method
GB/T 26253 Determination of Water Vapor Transmission Rate of Plastic Films and Sheets Infrared Detector Method
IEC 61215.2005 Design qualification and finalization of crystalline silicon photovoltaic modules for ground use
3 Product Classification
POE encapsulation film is used as the encapsulation protection of solar cell modules. It has excellent weather resistance and electrical insulation, and provides excellent components
Its anti-PID characteristics provide the battery components with corrosion resistance and environmental corrosion resistance.
At present, there are usually two types of POE encapsulation films on the market. One is that does not contain a crosslinking agent. The combination of functional polymers makes the material
Non-cross-linked polyolefin encapsulating materials with heat resistance and adhesion that meet the requirements of use; the other is cross-linked polyolefin containing cross-linking agent and tackifier
Hydrocarbon packaging material.
4 requirements
4.1 Appearance
The surface of the POE packaging film should be flat, free of creases, stains, no visible impurities, no bubbles, and clear embossing.
4.2 Performance requirements
The performance requirements of POE packaging film are shown in Table 1.
5 Test method
5.1 Sampling, pretreatment conditions and test conditions
5.1.1 Sampling method
When sampling, the three outermost layers of the sample roll of POE packaging film should be removed, and the flat POE packaging film in the middle of the sample roll should be cut as a sample.
5.1.2 Pretreatment conditions
Unless otherwise specified, the sample processing condition is (23±2)℃, the relative humidity is (50±5)%, and the sample is placed horizontally under these conditions.
Set it for more than 24h, and test under this condition.
5.2 Appearance
Under natural light, visually check whether the POE packaging film is smooth, free of creases, stains, no visible impurities, no bubbles, and clear embossing.
5.3 Thickness
5.3.1 Instruments
Thickness gauge with an accuracy of 0.01mm
5.3.2 Test
According to the provisions of Chapter 4 of GB/T 13542.2-2009.Take three strips of POE packaging glue with the original width and length of 100mm on the same sample roll along the transverse direction of the film roll
The film is used as a sample, and 9 points are measured on each strip, and the distance between each two points is not less than 50mm. For the uncut sample, the measurement point should be away from the edge
50mm. For samples that have been trimmed, the measuring point should be 2mm away from the edge. The results are averaged.
5.4 Density
According to the provisions of the liquid pycnometer law of GB/T 1033.1-2008.The density of the POE packaging film is measured. On three specimens
Test and average the results.
5.5 Quantitative deviation
5.5.1 Instruments
Disc sampler with a sampling area of 100cm2.Analytical balance, accuracy 0.1mg.
5.5.2 Test method
Place the sample on a rubber pad with a flat surface, use a disc sampler at a distance of 50mm from the edge, along the width of the POE packaging film
Intercept at least five samples at equal distances, weigh the samples, and calculate the quantitative (g/m2) of each sample.
5.5.3 Result calculation
Calculate the quantitative deviation according to formula (1), keep 1 digit after the decimal point, and take the average of the results.
5.6 Light transmittance
5.6.1 Instruments
For spectrophotometer with integrating sphere, the diameter of the integrating sphere is greater than 90mm.
5.6.2 Sample preparation
Take one piece of POE packaging film with a size of 40mm×60mm and two pieces of 40mm×60mm quartz glass (requires no embossing, light transmittance ≥91%),
According to the quartz glass/POE packaging film/quartz glass, put it into the vacuum press, according to the product curing temperature and time (to be negotiated by the supplier and the buyer)
For cross-linking and solidification, take it out and put it in a desiccator to cool to room temperature. The upper and lower surfaces of the cured sample should be smooth and free of bubbles. Lots of samples in each group
Yu three.
5.6.3 Test
Measure according to GB/T 2410.The wavelength range of the spectrophotometer is set to 280nm～1100nm. Calculate 290nm～380nm and
The average light transmittance from 380nm to 1100nm. At least three samples are tested in each group, and the results are averaged.
5.7 Haze
5.7.1 Instruments
Same as 5.6.1.
5.7.2 Sample preparation
Same as 5.6.2.
5.7.3 Test
Measure according to GB/T 2410.The wavelength range of the spectrophotometer is set to 380nm～1100nm. At least three samples are tested in each group.
Take the average of the results.
5.8 Degree of crosslinking (xylene extraction method)
5.8.1 Test equipment and reagents
Use the following equipment and reagents.
- Constant temperature drying oven, the temperature range is normal temperature ~.200℃;
--Analytical balance with an accuracy of 0.1mg;
-Heating device, electric heating jacket or constant temperature oil tank, which can heat xylene to a boiling state;
--Flask with a capacity of 500mL with 24
Put the sample package in a constant temperature drying box and dry it at 140°C for 3 hours to remove the solvent.
Take the sample pack out of the oven, remove the iron wire, cool it in a desiccator for 30 minutes, and weigh it as W3.
5.8.2.2 Result calculation
Calculate the degree of crosslinking according to formula (2), keep two decimal places after the decimal point, and take the average of the results.
5.9.2 Sample preparation
5.9.3 Test
According to the provisions of GB/T 2790, the peeling between the POE packaging film and the glass was measured on a tensile testing machine at a tensile speed of 100mm/min.
Li Li F.
5.9.4 Results
5.10 Peel strength with backplane
5.10.1 Instruments and auxiliary materials
Use the following equipment and auxiliary materials.
-Tensile testing machine;
--Vacuum press;
--Extra-white embossed tempered glass. the thickness is 3.2mm, the transmittance is above 91.5% in the 380nm～1100nm waveband;
--Backboard. The surface is clean and flat, without wrinkles, scratches, delamination, bubbles and debris, etc., and the water vapor transmission rate should be less than 2.0g/(m2·24h).
5.10.2 Sample preparation
Take two 300mm×150mm POE packaging film, one ultra-white embossed glass and one back plate.
Fold it in the order of glass/POE packaging film (two pieces)/back plate, put it into the vacuum press, and set the curing temperature and time according to the product requirements
(To be agreed between the supplier and the buyer) For cross-linking and curing, there should be no bubbles on the surface of the laminated and cured POE packaging film. Prepare three samples.
Cut the POE packaging adhesive film layer/backplane layer into a sample with a width of (10±0.5) mm every 5mm along the width direction for the determination of POE
The peel force between the packaging film and the backplane.
5.10.3 Test
According to the provisions of GB/T 2790, the peeling between the POE packaging film and the back plate is measured on a tensile testing machine at a tensile speed of 100 mm/min.
Li Li F.
5.10.4 Results
5.11.2 Test
Put the tempered glass of 300mm×300mm×3.2mm into a constant temperature oven that has been heated up to 120℃ in advance, and then flatten the POE packaging film sample
Put it on the glass surface for 3 minutes, take it out and cool it to room temperature, and measure the length L (mm) and width B (mm) at the shortest distance.
5.11.3 Results
The shrinkage rate is calculated according to formula (5) and formula (6), and the arithmetic average of three samples is taken to the nearest 0.1%.
Longitudinal MD. (5)
Horizontal TD. (6)
5.12 Volume resistivity
5.12.1 Instruments
5.12.2 Sample preparation
Take one piece of 100mm×100mm POE encapsulation film, one piece of glass, two pieces of non-stick film and one back plate, and encapsulate according to glass/non-stick film/POE
The adhesive film/non-adhesive film/back plate are stacked in sequence, put into the vacuum press, and cross-linked and solidified according to the curing temperature and time of the product (to be agreed by the supplier and the buyer)
And put it in a desiccator to cool to room temperature. The surface of the cured sample should be smooth and free of bubbles. There are no less than three samples in each group.
5.12.3 Test
Place the sample at (23±2)℃ and (50±5)% for at least 24h. According to the provisions of GB/T 1410, at DC voltage 1000V, electric
The measurement was carried out under the condition of a melting time of 60s, three samples were tested, and the results were averaged.
5.13 Power frequency electric strength
5.13.1 Instruments
Use the following equipment and auxiliary materials.
--Electric strength tester;
--Thickness gauge, the smallest scale is 0.01mm.
5.13.2 Sample preparation
Take two pieces of.200mm×200mm POE packaging film, one piece of glass, two pieces of non-adhesive film and one back plate, and encapsulate by glass/non-stick film/POE
The adhesive film/non-adhesive film/back plate are stacked in sequence, put into the vacuum press, and cross-linked and solidified according to the curing temperature and time of the product (to be agreed by the supplier and the buyer)
And put it in a desiccator to cool to room temperature. The surface of the cured sample should be smooth and free of bubbles. Then remove the edges of the cross-linked POE packaging film,
Cut 100mm×100mm as the sample and prepare five samples.
5.13.3 Test
Measure the thickness of the sample, measure three points at different positions, and take the average value as the sample thickness value. According to GB/T 1408.1, the result
Take the average of five samples.
5.14 Comparative Tracking Index
5.14.1 Sample preparation
Take two 50mm×50mm POE packaging adhesive films, one glass, two non-adhesive films and one back panel, and press the glass/non-adhesive film/POE packaging adhesive
The film/non-adhesive film/back plate are stacked in sequence, put into a vacuum press, and cross-linked and cured according to the curing temperature and time of the product (to be agreed between the supplier and the buyer).
Put it in a desiccator and cool to room temperature. The surface of the cured sample should be smooth and free of bubbles. Make multiple samples to encapsulate the cross-linked POE
Remove the edges of the film, cut into 30mm×30mm samples, stack the samples in multiple layers until the total thickness is greater than or equal to 3mm, and prepare five samples.
5.14.2 Test
According to the provisions of GB/T 4207, configure solution A, add 50 drops or 100 drops to the surface of the sample at a speed of (30 ± 5) s, observe and
Record the appearance changes of the five samples to determine the comparative tracking index (CTI) of the samples.
5.15 Water vapor transmission rate
5.15.1 Instruments
Use the following equipment and auxiliary materials.
--Water vapor transmission rate tester;
--Thickness gauge, the minimum thickness is 0.01mm.
5.15.2 Sample preparation
Take one piece of.200mm×200mm POE packaging film, one piece of glass, two pieces of non-adhesive film and one back plate, and encapsulate by glass/non-stick film/POE
The adhesive film/non-adhesive film/back plate are stacked in sequence, put into the vacuum press, and cross-linked and solidified according to the curing temperature and time of the product (to be agreed by the supplier and the buyer)
And put it in a desiccator to cool to room temperature. The surface of the cured sample should be smooth and free of bubbles. Cut the cross-linked POE packaging film as required
Samples, prepare three samples.
5.15.3 Test
Measure the thickness of the sample with a thickness gauge, measure 3 points at different positions, and take the average value as the thickness of the sample. According to GB/T 21529 or GB/T
According to 26253, under the condition of temperature (38±0.5)℃ and humidity (90±5)%, the water vapor transmission rate of the sample is measured, and three samples are taken as a result
average value.
5.16 UV resistance test
5.16.1 Purpose
The UV accelerated aging test was used to test the cured POE packaging film's resistance to UV aging when exposed to the atmosphere.
5.16.2 Equipment and auxiliary materials
Use the following equipment and auxiliary materials.
--UV aging test chamber, equipment light source, UV irradiance meter, temperature sensor, etc. comply with the 10.10 of IEC 61215.2005;
--Vacuum press;
--Color tester;
-Tensile testing machine;
--Super white embossed glass. the thickness is 3.2mm, and the transmittance is above 91.5% in the (380～1100)nm band;
--Backboard. double-sided fluorine-containing material, the surface should be clean and flat, free of wrinkles, scratches, delamination, bubbles and debris, etc., and the water vapor transmission rate should be
Less than 2.0g/(m2·24h).
5.16.3 Sample preparation
Take two pieces of 300mm×150mm POE packaging film, and press the front panel material, the front layer of POE packaging film, the back layer of POE packaging film, and the back
After the board materials are superimposed, they are put into a vacuum press and cross-linked and cured according to the curing temperature and time of the product (to be agreed between the supplier and the buyer), and the finished sample
There should be no defects in appearance. Prepare three samples.
5.16.4 Test
Put the sample into the ultraviolet aging test box, the ultraviolet spectrum distribution. the radiation intensity between the wavelength of 280nm～400nm is (50～150)
W/m
2.The uniformity of illumination on the surface of the sample is within 15%. The radiation in the 280nm～320nm waveband accounts for (3-10)% of the total radiation. In purple
While irradiating outside, the surface temperature of the sample inside the test box is kept at 60℃±5℃.
Accumulation of irradiation power. Accumulate according to the actual amount of irradiation on the surface of the sample, at least every 30kWh/m2 with a radiometer for UV power calibration
Quasi once. Test time. in terms of the accumulated dose of radiation power, it is generally 120kWh/m2.
The yellow index of the samples before and after the test is determined according to the provisions of GB/T 3979 and GB/T 7921, and the test of each sample is not less than 3
Take the average of points, calculate the difference of the yellow index of the sample before and after UV aging, and measure the sample after UV aging test according to 5.9 and 5.10
Peel strength between glass, sample and backplane.
5.17 Damp heat aging test
5.17.1 Purpose
Inspect the cured POE encapsulation film's resistance to damp and heat aging under constant temperature and humidity conditions.
5.17.2 Equipment and auxiliary materials
Use the following equipment and auxiliary materials.
- Constant temperature and humidity aging test box;
--Vacuum press;
--Color tester;
-Tensile testing machine;
--Super white embossed glass. the thickness is 3.2mm, and the transmittance is above 91.5% in the 380nm～1100nm waveband;
--Backboard. double-sided fluorine-containing material, the surface should be clean and flat, free of wrinkles, scratches, delamination, bubbles and debris, etc., water vapor transmission rate
It should be less than 2.0g/(m2·24h).
5.17.3 Sample preparation
Take two pieces of 300mm×300mm POE packaging film, and then press the front panel material, the front layer of POE packaging film, the back layer of POE packaging film, and the back panel in sequence
After the materials are superimposed, they are put into a vacuum press, and they are cross-linked and cured according to the curing temperature and time (to be agreed between the supplier and the buyer).
flawless. Prepare three samples.
5.17.4 Test
Put the sample in a constant temperature and humidity aging test box, the test conditions. temperature (85±2) ℃, relative humidity (85±5)%. During the test
The time is.2000h. After the test, the sample is taken out and treated at (23±5)℃ and the relative humidity is less than 7.5% for (2～4)h. Check
Whether there are appearance defects.
The yellow index of the samples before and after the test is determined according to the provisions of GB/T 3979 and GB/T 7921, and the test of each sample is not less than 3
Take the average value to calculate the difference of the yellow index of the sample before and after damp heat aging. Measure the sample after damp heat aging test according to 5.9 and 5.10
Peel strength between glass, sample and backplane.
5.18 Heat resistance
5.18.1 Purpose
Test the heat resistance of the cured POE packaging film under high temperature and dry conditions.
5.18.2 Equipment and auxiliary materials
Use the following equipment and auxiliary materials.
- Constant temperature oven;
--Vacuum press;
--Super white embossed glass. the thickness is 3.2mm, and the transmittance is above 91.5% in the 380nm～1100nm waveband;
--Float flat semi-tempered glass. thickness is 2.5mm, transmittance is above 91.5% in the 380nm ~ 1100nm band.
5.18.3 Sample preparation
Take two pieces of 300mm×300mm POE packaging film, and press the ultra-white embossed glass, the front layer of POE packaging film, the back layer of POE packaging film,
Float semi-tempered glass is superimposed and placed in a vacuum press, and cross-linked and cured according to the curing temperature and time of the product (to be agreed between the supplier and the buyer).
The finished sample should have no defects in appearance. Prepare three samples.
5.18.4 Test
Put all samples in a constant temperature oven, test conditions. temperature (150 ± 2) ℃, relative humidity < 5%. The test time is 5h, the test
After the end, take out the sample and treat it at (23±5)℃ and relative humidity less than 7.5% for (2～4)h, and check for appearance defects.
5.19 Thermal aging test
5.19.1 Purpose
Test the heat aging resistance of the cured POE packaging film under high temperature and dry conditions.
5.19.2 Equipment and auxiliary materials
Use the following equipment and auxiliary materials.
- Constant temperature oven;
--Vacuum press;
--Color tester;
-Tensile testing machine;
--Super white embossed glass. the thickness is 3.2mm, and the transmittance is above 91.5% in the 380nm～1100nm waveband;
--Backboard. double-sided fluorine-containing material, the surface should be clean and flat, free of wrinkles, scratches, delamination, bubbles and debris, etc., water vapor transmission rate
Should be less than 2.0g/m2·24h.
5.19.3 Sample preparation
Take two pieces of 300mm×300mm POE packaging film, and then press the front panel material, the front layer of POE packaging film, the back layer of POE packaging film, and the back panel in sequence
After the materials are superimposed, they are put into a vacuum press, and they are cross-linked for curing according to the curing temperature and time (to be agreed between the supplier and the buyer).
The view should be flawless. Prepare three samples.
5.19.4 Test
Put the sample in the oven, test conditions. temperature (105±2) ℃, relative humidity < 5%. The test time is 500h, the test is over
Then take the sample out and treat it at (23±5)℃ and relative humidity less than 7.5% for (2～4)h.
The yellow index of the samples before and after the test is determined according to the provisions of GB/T 3979 and GB/T 7921, and the test of each sample is not less than 3
Take the average value at each point, and calculate the difference of the yellow index of the sample before and after heat aging. According to 5.9 and 5.10, determine the sample and glass after heat aging test
The peel strength between glass, sample and backplane.
5.20 PCT aging test
5.20.1 Purpose
Test the aging resistance of the cured POE packaging film under high temperature and humidity conditions.
5.20.2 Equipment and auxiliary materials
Use the following equipment and auxiliary materials.
--PCT test chamber;
--Vacuum press;
--Color tester;
-Tensile testing machine;
--Super white embossed glass. the thickness is 3.2mm, and the transmittance is above 91.5% in the 380nm～1100nm waveband;
--Float flat semi-tempered glass. thickness is 2.5mm, transmittance is above 91.5% in the 380nm ~ 1100nm band.
--Backboard. double-sided fluorine-containing material, the surface should be clean and flat, free of wrinkles, scratches, delamination, bubbles and debris, etc., and the water vapor transmission rate should be
Less than 2.0g/m2·24h.
5.20.3 Sample preparation
Take two pieces of POE packaging film with a size of 300mm×300mm, and press the front panel material, the front layer POE packaging film, the back layer POE packaging film,
The backplane is superimposed and placed in a vacuum press, and the product is cross-linked and cured according to the curing temperature and time (to be negotiated by the supplier and the buyer).
The view should be flawless. Prepare three samples.
5.20.4 Test
Put the sample in the oven, test conditions. temperature (121±2) ℃, relative humidity 100%, 2 atmospheres; test time is generally
24h, after the test, take out the sample and treat it at (23±5)℃ and relative humidity less than 7.5% for (2～4)h.
The yellow index of the samples before and after the test is determined according to the provisions of GB/T 3979 and GB/T 7921, and the test of each sample is not less than 3
Take the average of each point and calculate the difference of the yellow index of the sample before and after aging. According to 5.9 and 5.10, determine the sample and glass,
The peel strength between the sample and the backplane.
Note. If the POE encapsulation film is used in a double glass module, it should be subjected to 48h PCT test after glass/POE encapsulation film/glass lamination, and aging is requ...
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