Film-return: the return of film material trends
Currently, the solar VGP-BPS9/S VGP-BPS9/B cell film wider audience back to the type of double-sided adhesive membrane complex fluoride and return the type of film coating behind. Return complex plastic solar cell membrane (TPT, KPK, etc.) are mostly in Europe and the United States has developed a number of chemical companies such as fluoride or fluoride PVF PVDF membrane by composite bonding with the substrate PET. Rubber type film consists of return due to its presence in the PET substrate adhesive on both sides, and different level of quality adhesives, combined with the complex process of different ways, cell components for use Outdoor long-term return composite membranes by humidity and temperature combined effects of these two factors, hydrolysis and therefore likely to be damaged link layer, ultimately leading to fluoride film (PVF or PVDF, etc.) and detachment of the substrate PET, can not meet the reliability requirements of long battery components. VGP-BPS9 VGP-BPS9A/B
Meanwhile, because of manufacturing constraints and fluoride patent hydrophilic membrane surface modification reasons of technology, such as fluoride PVF and PVDF membrane product has not yet reached the market in China. Therefore, the use of PVF or PVDF film development and production of fluorine and other fluorine-containing solar cell back double membrane of Chinese firms subject to the foreign manufacturer fluoride membrane long-term return Film production costs remain high, and suitable for fluorine bond film and PET high quality adhesives and more for the foreign monopoly of a handful of technology providers is difficult to import. Although some manufacturers in Canada may only use the diaphragm back of some ordinary polyurethane, epoxy or acrylic adhesive easily aging, performance can not meet the durability requirements of 25 years. VGP-BPS8 VGP-BPS8A
Given the rear solar cell membrane complex plastic is not reached with fluoride membrane localization of internal reality and rear components of the composite membrane with the adhesive is difficult to stand during the test long aging outdoor hot and humid, the development of a class does not use glue to high integration and has excellent performance in the long term alteration of low cost products of high quality film back is back on film development and direction of technological development and trends. VGP-BPS9A
After decades of fluorocarbon coating the rapid development of the construction, chemical, electrical and electronic engineering, aerospace, household products are widely used in various fields, became the acrylic coating, polyurethane coatings, silicone coatings, etc. After high-performance coatings, paints the most complete performance of varieties. Currently, a more extensive layer of fluororesin mainly PVDF CTFE, three PTFE, the country after the United States, Japan, the third has a fluorocarbon coating after synthesis of technology and industrialization of the country. hp Pavilion DV1000 battery hp Pavilion dv4000 battery
For multinational fluorine resin (such as Asahi Glass, a large gold medal and Arkema, etc. [2]) the development and production of PVDF, CTFE, PTFE as the preparation of major fluorocarbon resin coatings are widely used in bridges, buildings, railways, communications infrastructure protection at the surface, and stood outside for over 40 years of rigorous tests show excellent resistance to weathering. In addition, the present, including the low temperature plasma technology, radiation technology, chemical grafting technique of surface modification of vacuum plasma materials, including technology was more mature. Therefore, the fluorocarbon coating, surface modification of PET technology, the surface modification techniques such as fluorine coating applied to the film as a brake on development of solar cells in order to reach does not use adhesive and has excellent long-term performance altering the type of coating with low cost high quality film product back is quite possible, but also the future development of membranes and the only way back for location. hp OmniBook XE3 battery hp Pavilion dv8000 battery
Process of localizing the membrane back: acceleration
Presently, the national film industry back in the early stages of development too, its development and production company are distributed in the Yangtze River Delta in mainland China, the development of the main types of complex-type plastic film back and the type of coating film of the film was two categories. In Taiwan, Hong Wu competition, Lucky film companies Huitong represented mainly reduced to PVF, PVDF or ETFE membranes such as fluorine and PET substrate prepared by bonding composite and complex plastic film back type, membrane Fluoride basic dependence on imports, making the movie Back to higher costs. Suzhou in the past, fluoride Kazakhstan Long, Foster and other film companies represented at the rear of a resin of polytetrafluoroethylene (PTFE) resin or chlorotrifluoroethylene (CTFE) as the resin layer to form the main compound and the coating and PET substrate coated preparation developed back in the back of the cost of membrane technology has great advantages. A1185 A1189 M8403
As the domestic manufacture of rubber compound type film back in the main raw materials and base technologies have the advantages of cost and quality, generating proceeds of core competitiveness of the overall profit margin lower. Business and Suzhou (Jolywood) through independent research and development in the area of PET and PTFE (FFC) were taken at the surface of the first technology of silicon titanium plasma processing and treatment fluoride plasma technology siloxane significantly increased the FFC PET and the surface energy and the number of active chemical groups, so that between the PET and the FFC, FFC and the EVA is not only a physical adsorption between the two, but also the chemical molecules of graft adherence to FCC coating fluorine superpower PET adhesion strength of EVA is much improved after the trial of 85 ℃ * 85% of aging RH2000 hours between layers it is not without delamination. Currently, Suzhou Back to the solar cell membrane of PTFE has passed TUV, SGS, UL and other international certification, and in national and international PV companies are widely used. A1280 A1281 A1245
January 16, 2010 in Suzhou (Jolywood) annual production of 30 million square meters of solar film planned expansion of the cell based in Changshu City, Jiangsu Province Shajiabang City Industrial Park, Chang Kun has officially started, the base Production of the sun film battery in Asia and the world for nothing, its achievement will greatly accelerate the back of high performance solar cell membrane in the process of domestic and foreign manufacturers in China completely break the back of produced films for high-performance solar cell industry monopoly. apple iBook G4 12-inch battery apple iBook G4 12-inch battery
With the world economy as a whole for the better, China and the photovoltaic industry in the world will enter a period of development at high speed. Meanwhile, policy adjustments and the 2010 European market for photovoltaic PV application in China has begun to reduce the cost of solar components is imperative that we have reason to believe that in the next 1 to 2 years, Chinese industry PV will return packing membrane localization, which will also realize the true meaning of complete elements of solar cells Applied Materials. apple iBook G4 14-inch battery apple PowerBook G4 17-inch battery