Okorder obtained by the German Rhine technology certification center (TUV Rheinland) issued by the encapsulation double glass photovoltaic building component product certification, the product can be used as new building materials, directly used in buildings, this symbolized our pv integration of building energy conservation products reached the international advanced level, the scientific research achievements for the society advocating environmental protection, energy conservation and emissions reduction play a positive role.

Double glass photovoltaic building components (BIPV), is a kind of solar photovoltaic modules, namely a encapsulates the special laminated glass solar silicon wafer.According to data shows, with double glass photovoltaic photovoltaic roof building components built area of ninety-three square meters, account for up to 10 octaves, produce an average of five flows, can save about one thousand nine hundred kilograms of standard coal, reduce six tons of carbon dioxide, as a result, this new type of double glass photovoltaic building components for solar energy clean energy and modern building perfect combination, the save conventional energy and reduce carbon dioxide emissions is of great significance.
The current widely used in solar photovoltaic components encapsulation materials mainly has two kinds: EVA (ethylene/poly (vinyl acetate) membrane and PVB film (PVB).The present domestic only several double glass photovoltaic components manufacturing enterprises, adopt EVA film packaging, it doesn't accord with the requirement of construction safety norms in our country.PVB film after high temperature and high pressure molding, better than EVA film bonding, glass membrane anti-uv ability far more powerful than EVA, at the same time have a higher penetration resistance and better after fracture performance, more can conform to the requirements of the safety features of the glass walls and roof.

King kong PVB film (PVB) double glass photovoltaic building adopts low iron high strength monolithic cesium potassium flameproof glass as substrate, is pioneering new photovoltaic building integrated products in China.Set power, sound insulation, heat insulation, fire prevention, safety protection for the integration of multi-functional building materials of new products.Solved the previous pv products use EVA film (ethylene/poly (vinyl acetate) membrane for safety performance is poor, cannot be applied at the top of the lighting, curtain wall, building part of the problem such as shading.

The product can be directly applied to the building envelope, again on the building envelope to reduce ever set up photovoltaic modules of repeated investment, thereby reducing the cost of the application of solar energy, a new clean energy.

 

 

 

Experience has shown that the development of Germany and Japan in the urban development of photovoltaic (pv) grid power generation effect is very good, especially combined with photovoltaic (pv) and architecture, which can reduce the cost of system, and can reduce carbon dioxide emissions, photovoltaic building valuable urban development.

National ministry of finance, housing and urban-rural development in nine years in February issued "solar photovoltaic building application fiscal subsidy funds management interim measures for the implementation of safety standards and conform to the national construction of double glass photovoltaic building integrated components (BIPV) will actively promote the advent of popularization and application of the technology in our country, the industry construction speed and the application of new clean energy grid-connected.

Wear resistant high safety coefficient, good sound insulation effect of polyvinyl butyral (PVB) film after it is widely used in automobile and construction, in recent years, and opened up a new application space in the field of photovoltaic panels.If growth consulting companies in the United States, the stern Sullivan in analysis and prediction of research report, published in May, in the next few years, PVB film demand growth, market growth potential is tremendous.

Threshold high industry concentration
PVB mainly for the automotive and construction industry manufacturing laminated safety glass, namely the PVB resin first pressed into thin film, and then embedded in between the glass to make laminated glass plate.Safety glass in the interlayer materials to absorb impact energy, and the material sound insulation effect is good, resistance to ultraviolet light.At present, about 89% PVB used in the production of construction and automotive safety glass, 4% in photovoltaic materials, the rest of the 7% used in the paint, glue, dye and other materials.2008, global consumption of PVB resin for 270000 tons, the market size of about $2.2 billion, with the stern Sullivan, expects demand in the future this product every year will increase to 6% average annual growth rate, consumption will reach 410000 tons by 2015.In 2009, the market value of about $1.524 billion of global PVB film, expect the market to 7.9% a year growth rate increased rapidly.

PVB film manufacturer mainly has four - solutia, Sekisui, dupont and Kuraray, they account for 96% of market share.Solutia is one of the biggest manufacturers, its products are mainly used in automobiles and construction.Sekisui's products are mainly used in automobile industry, Kuraray and dupont, has an important position in the emerging photovoltaic material application, but dupont cars and construction industry is facing the loss of market share.

Because PVB film industry needs large capital input, the mature technology and integration of production process of raw materials, so the higher threshold.Currently, there is no other product to replace PVB film, although ionomer may pose a threat to it in the future, but now the cost is too high.

Is application of a large car market
The car industry is one of the biggest PVB film terminal customers.Safety glass is mainly used in automobile windshield.Auto industry safety standards are very strict, so the safety glass is a big demand.In Europe, the government has forced people to use safety glass.According to statistics, in 2009 the market value of automotive PVB film was about $818 million.Relevant organizations, expects the market will increase to 6.5% average annual growth in the future.

 

 

 

In addition to use in the windshield of the car, PVB film can also be used in the edge of the window.Removable side window must be very wear-resisting, currently used by most of the removable glass material is still fragile, safe enough, so the mobile side window using safety glass in the future will be more and more, and the car's rear window and is developing towards the trend.

 
Construction dosage was 80%
PVB film as the sandwich materials embedded in the safe glass, mainly used in office building, the dosage of this part of PVB film in 80% of the total amount.In 2009, the consumption of the global construction industry PVB film of 89000 tons, generated $614 million in sales.Although already on the market at present useful ionic crosslinking polymer made of glass, but it is only for special users, mainly used in the Windows of the hurricane.

At present, many factors promote the application of PVB film in the construction industry.Some government issued measures mandatory residential building use safe glass, PVB sheet with good sound insulation effect and its performance are wear-resistant heat-resistant promoted the demand of safety glass.But if the future cost of ionomer dropped significantly, it is likely to become the threat of PVB products.

Photovoltaic (pv) has good application prospect in the market
PVB film in photovoltaic panels are mainly used as sealing material.Photovoltaic panels is the feature of long life, generally up to 20 years, and manufacturing chamber of commerce in a variety of means to prolong the life of the panels, sealing material is a good choice.Sealing material solar cells and photovoltaic panels can be firmly sticking to the surface, so that we can make the photovoltaic cells under high temperature and strong ultraviolet radiation also can maintain stable performance.Sealing material of panels cost 3% ~ 5%.

At present, there are two main types of photovoltaic panels with sealant, elastomers and thermoplastics.EVA as a kind of elastomer material, in the sealant market occupies the largest share, PVB as thermoplastic material, market share, second only to EVA.

Kuraray is the biggest manufacturer of photovoltaic PVB film market, 35% of the share;Dupont, followed by accounts for about 31% of the share.But at present dupont and solutia is rapidly expanding its photovoltaic sealing material market.Xin fu pharmaceutical company, association, kay technology co., LTD. Is China's domestic main photovoltaic PVB film producers.

Pvb film related to share 

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