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PVDF film, that is, polyvinylidene fluoride film, is a fluorine-containing polymer film.
Due to the large electronegativity of fluorine, the bond energy between carbon and fluorine bonds is very strong.
In addition, the molecules in the structure of fluorine-containing materials are tightly arranged and rigid.
Hard and smooth, the fluorine-containing film has excellent chemical corrosion resistance, heat resistance, oxidation resistance, weather resistance and other properties, and is widely used in fluorocarbon coatings, injection molding, lithium batteries, photovoltaic backplane films, water treatment films, etc.
field
.
At present, the commonly used fluorine film materials for solar photovoltaic backsheet films on the market are PVDF and PVF
.
Compared with PVF, PVDF materials have the following three advantages: First, the fluorine content of PVDF is significantly higher than that of PVF, so PVDF has stronger UV resistance and chemical resistance; Strong sand resistance, more suitable for harsh outdoor environments; Third, PVDF has better flame retardant ability, which can significantly reduce the probability of fire
.
Therefore, PVDF materials have better performance advantages for solar photovoltaic backsheets
.
In recent years, with the rapid development of the solar photovoltaic industry, the share of PVDF film in the photovoltaic backplane film has continued to increase, and PVDF has become a photovoltaic backplane film material with a large market size
.
As the PVDF film material for photovoltaic back sheet, the technical indicators such as tensile strength, elongation at break, thermal shrinkage performance, and visible light transmittance are very important technical indicators of the project product.
performance control
.
Labthink specializes in providing professional material physical property testing solutions and testing instruments for global customers, and can provide intelligent electronic tensile testing machines for PVDF film testing (testing tensile strength/elongation at break/puncture resistance), film Heat shrinkage performance tester, light transmittance haze tester and other equipment provide professional equipment solutions for enterprise product quality inspection
.
1.
XLW (PC) intelligent electronic tensile testing machine is an electronic tensile testing machine professionally used to test mechanical properties such as tensile properties of various flexible packaging materials.
It is suitable for plastic films, adhesives, adhesive tapes, self-adhesives, medical Performance test of tensile, peeling, deformation, tearing, heat sealing, bonding, puncture force and other products of patch, protective film, combined cover, back sheet material, non-woven fabric, rubber, paper fiber and other products
.
2.
RSY-R2 heat shrinkage tester (oil heating), suitable for heat shrinkage performance and size of various films, heat shrinkable tubes, pharmaceutical PVC rigid sheets, back sheets and other materials in liquid media at various temperatures Stability test
.
3.
C631H film heat shrinkability tester (air heating), based on the standard GB/T 34848, ISO 14616 research and development, is a precise and quantitative measurement of the heat shrinkage force, cold shrinkage force, and heat shrinkage force of plastic films during heat shrinkage.
Shrinkage and other performance testing equipment
.
It is suitable for accurate measurement of thermal shrinkage force and thermal shrinkage rate above 0.
01N
.
Produced by the drafting unit of the national standard (GB/T 34848), it strictly meets the standard requirements
.
4.
WGT-S light transmittance and haze tester is used to test the light transmittance and haze of all transparent and translucent parallel plane samples (plastic plates, sheets, etc.
), and the turbidity of liquid samples (water, beverages, etc.
).
or clarity measurement
.
Due to the large electronegativity of fluorine, the bond energy between carbon and fluorine bonds is very strong.
In addition, the molecules in the structure of fluorine-containing materials are tightly arranged and rigid.
Hard and smooth, the fluorine-containing film has excellent chemical corrosion resistance, heat resistance, oxidation resistance, weather resistance and other properties, and is widely used in fluorocarbon coatings, injection molding, lithium batteries, photovoltaic backplane films, water treatment films, etc.
field
.
At present, the commonly used fluorine film materials for solar photovoltaic backsheet films on the market are PVDF and PVF
.
Compared with PVF, PVDF materials have the following three advantages: First, the fluorine content of PVDF is significantly higher than that of PVF, so PVDF has stronger UV resistance and chemical resistance; Strong sand resistance, more suitable for harsh outdoor environments; Third, PVDF has better flame retardant ability, which can significantly reduce the probability of fire
.
Therefore, PVDF materials have better performance advantages for solar photovoltaic backsheets
.
In recent years, with the rapid development of the solar photovoltaic industry, the share of PVDF film in the photovoltaic backplane film has continued to increase, and PVDF has become a photovoltaic backplane film material with a large market size
.
As the PVDF film material for photovoltaic back sheet, the technical indicators such as tensile strength, elongation at break, thermal shrinkage performance, and visible light transmittance are very important technical indicators of the project product.
performance control
.
Labthink specializes in providing professional material physical property testing solutions and testing instruments for global customers, and can provide intelligent electronic tensile testing machines for PVDF film testing (testing tensile strength/elongation at break/puncture resistance), film Heat shrinkage performance tester, light transmittance haze tester and other equipment provide professional equipment solutions for enterprise product quality inspection
.
1.
XLW (PC) intelligent electronic tensile testing machine is an electronic tensile testing machine professionally used to test mechanical properties such as tensile properties of various flexible packaging materials.
It is suitable for plastic films, adhesives, adhesive tapes, self-adhesives, medical Performance test of tensile, peeling, deformation, tearing, heat sealing, bonding, puncture force and other products of patch, protective film, combined cover, back sheet material, non-woven fabric, rubber, paper fiber and other products
.
2.
RSY-R2 heat shrinkage tester (oil heating), suitable for heat shrinkage performance and size of various films, heat shrinkable tubes, pharmaceutical PVC rigid sheets, back sheets and other materials in liquid media at various temperatures Stability test
.
3.
C631H film heat shrinkability tester (air heating), based on the standard GB/T 34848, ISO 14616 research and development, is a precise and quantitative measurement of the heat shrinkage force, cold shrinkage force, and heat shrinkage force of plastic films during heat shrinkage.
Shrinkage and other performance testing equipment
.
It is suitable for accurate measurement of thermal shrinkage force and thermal shrinkage rate above 0.
01N
.
Produced by the drafting unit of the national standard (GB/T 34848), it strictly meets the standard requirements
.
4.
WGT-S light transmittance and haze tester is used to test the light transmittance and haze of all transparent and translucent parallel plane samples (plastic plates, sheets, etc.
), and the turbidity of liquid samples (water, beverages, etc.
).
or clarity measurement
.
