ETFE solar cell film , solar cell front sheet film

ETFE solar cell film , solar cell front sheet film

hylene ethylene copolymer, is a kind of fluorinated polymer type thermoplastic material, is a man-made high strength fluoropolymer, ETFE film forming material directly by the material.ETFE membrane material has good durability, easy clean and stability, is a typical kind of membrane material, the fabric is currently the most advanced thin-film material.

　　The characteristics of the ETFE film

(1) made from the fluorine plastic, it can also be used as fabric membrane material; pre-tensioning

(2) resistant to temperature change, can be directly exposed to - 200 ℃, 150 ℃ temperature;

(3) of ETFE light transmittance can be as high as 95%.Block uv light transmission, the material is not in place to ensure that building natural light.Through the surface printing, the translucency of the material can be further reduced to 50%;

(4) specific resistance adhesive surface has the high antifoulant, easy to clean characteristics, usually the rain to clear the main dirt;

(5) the ETFE achieve B1, standard DIN4102 fireproofing grade, burns would not drip.Thickness from 0.05 mm to 0.25 mm, usually and the film quality is very light, only 0.15 kg to 0.35 kg per square metre.This characteristic makes it even in the melt cases caused by smoke, fire, membrane also has considerable advantages;

(6) ETFE completely for recycling materials, can once again use of new membrane material production, production after a separation of impurities or other ETFE products;

(7) corrosion features, with strong adhesion characteristics of special metal, overcome the teflon for metal bonding defects, together with its average linear expansion coefficient is close to the linear expansion coefficient of carbon steel, make ETFE (F - 40) become ideal and metal composite material, has excellent resistance to negative pressure characteristics;

ETFE (8) the service life of at least 25 ~ 35 years and is ideal for permanent multilayer removable roof structure of the materials;

(9) ETFE film not only can be used as architectural membrane, recent domestic photovoltaic cell industry began to used for flexible photovoltaic cell encapsulation material, get rid of toughened glass, make components by: upper ETFE, EVA layer, cell layer, the EVA layer and the lower ETFE five layers.Make cell thickness less than 1 mm, because is totally plastic manufacturing, its weight is 1 kg/square metre only, truly achieve flexible and portable.

, because belong to fluorine plastic, although have many advantages above, but with PTFE (polytetrafluoroethylene) as the biggest characteristic is extremely hydrophobic and low surface energy, invasive, almost can't bonded (titanium is the use of this nature from fluorine plastic).So only via vacuum plasma processing (vacuum discharge), can not damage the excellent properties of base material ontology, not reduce the transmission of light in the a surface at the same time introducing polar group, improve the surface energy and invasive, and achieve a good bond with the EVA.With strong acid strong alkali, strong oxidizing agents, flame treatment, mechanical grinding compared to the surface treatment methods such as plasma processing is the only feasible way.Toward the atmospheric side not be processed at the same time, retain the strong hydrophobicity, falling rain stay not to live at the surface, so soon fell down, not leaving water marks on the surface.At the same time due to the falling dust from the atmosphere for the inorganic material, water is good for its invasive, so the water droplets tumble the dust collect into water droplets, tumble down together, achieve a photovoltaic cell surface similar to the self-cleaning effect of lotus leaf.

Our ETFE film is made by the complete set of imported equipment . It has the properties of anticorrosive ,weather fastness ,aging resistant ,Good radiation stability,nonstick, chemical stability ,dielectric insulation ,nontoxic and low crock etc.

It is widely used in the fields of Semiconductor ,LED ,FPC,flexible solar cell ,medical packing,construction ,Agriculture etc.

Surface treating ,matting treating,width cutting etc can be done based on buyer’s requirements.

ETFE FILM Series

ETFE film Technical Data Sheet

General Properties of ETFE film

1.Can be used at high temperature over 200oC

2.Can stop mold bleed

3.Excellent tensile and tear strength

4.Outstanding non-stick

5.Non-toxicity for environment

6.Non flammability

7.Chemical resistance .

8.Weather resistance

9.Solvent resistance

ETFE film for Solar cell

ETFE film has lighter quality than glass,higher transmission. It has perfect properties to improve solar cell’s properties and longer life.

ETFE film Properties:

Weather resistance : UV light resistance,15 years long life in Sunshine.

Transmission : Better than glass, about 90%

Non-adhesion : Outdoor usage, Defense against sand, dust and other pollutants,keep surface clean

Fireproof: Strong heat resistance ,won’t burn in air .

Application:

Solar cell’s front and back sheet

Flexible solar cell