Ultra-thin Flexible Glass for OLED Products

KONFECT, a German collaborative research project developed a 25 microns thick flexible glass that can be used as the substrate for organic electronics and solar panels, as well as for the further development of future generations of OLED applications.

The thickness of ultra-thin glass can be up to 150um, and it is produced in a factory located in Schott, Germany, using a direct thermoforming process, in which the molten glass extends through the nozzle to the desired thickness of Grunenplan. The key point is that the glass can be produced in a low cost volume to volume (R2R) process. At present, the process is being further developed and is expected to be optimized before the middle of 2018. Tape manufacturer TESA is a special adhesive and functional layer for the glass to the final lamination step to provide comprehensive protection.

The researchers said that the use of flexible glass substrate can be in the optical quality, temperature stability, chemical consistency, gas density and mechanical resistance and a series of benefits. It can also be used as a substrate for low cost solar cells.

From  :  https://www.landvac.net/

US Scientists Developed New Glass Battery

John Goodenough, professor in the Cockrell School of Engineering at The University of Texas at Austin and co-inventor of the lithium-ion battery, recently published a paper on the development of a new battery technology. The new technology uses glass doped with alkali-metal atoms such as lithium or sodium as the battery electrolyte (the medium that transports the ions between the anode and the cathode during battery charging or discharging).

They find, for instance, that the lithium- or sodium-glass battery has three times the energy storage capacity of a comparable lithium-ion battery. But its electrolyte is neither flammable nor volatile, and it doesn’t appear to build up the spiky “dendrites” that have plagued lithium-ions as they charge and discharge repeatedly and can ultimately short out, causing battery fires. Besides, the glass battery charges in “minutes rather than hours and early tests of their technology suggest it’s also capable of perhaps thousands of charge-discharge cycles, and could perform well in both extremely cold and hot weather. (Initial estimates place its operating range between below -20º C and 60º C.) 

Goodenough said that his team is ready to welcome the golden moment. The next step is to solve the issues with the cathode. Commercialization is possible after practical application testing.

From  :  https://www.landvac.net/

FunGLASS research center in Slovakia established with €25M

The global glass community received excellent news of a €25 million investment in glass research to establish the new Centre for Functional and Surface-Functionalized Glasses (FunGLASS) in Trencín, Slovakia. The Centre includes partner institutions in Germany, Spain, and Italy.

The establishment of this European centre boosts the momentum and importance of glass research on a global scale. The purpose of the Centre is to conduct cutting edge research on glasses with special functional properties, as well as investigate novel strategies for functionalizing conventional glasses. The aim is to modify properties and add new functionalities to expand the range of applications in the optical, energy, structural, and biomedical sectors.

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Passive radiative cooling glass was developed

Passive radiative cooling draws heat from surfaces and radiates it into space as infrared radiation to which the atmosphere is transparent. Radiative cooling is an extremely attractive concept in the 21^st century. This technology has attracted broad interests from both fundamental sciences and real world applications, ranging from passive building cooling, renewable energy harvesting and passive refrigeration in arid regions. 

Recently, a team of University of Colorado Boulder engineers has developed a scalable manufactured metamaterial — an engineered material with extraordinary properties not found in nature — to act as a kind of air conditioning system for structures. It has the ability to cool objects even under direct sunlight with zero energy and water consumption. When backed with silver coating, the metamaterial shows a noon-time radiative cooling power of 93 W/m2 under direct sunshine. More critically, the reserarchers demonstrated high-throughput, economical roll-to-roll manufacturing of the metamaterial, vital for promoting radiative cooling as a viable energy technology.

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Bringing Night Vision to Normal Glass

Night vision goggles have always been a sophisticated device to many people. But thanks to the “magic recipe” developed by the researchers at the Australian National University (ANU), adding this new material will grant night vision powers to an ordinary pair of glass. 

The principle of night vision goggles is to convert the incident photons into electrons that light up a phosphor screen inside the device to create a visual image of the surrounding area. But this process consumes power and makes most of night vision goggles a power hungry device. The material (known as nanocrystal) created by the ANU team can be used to create night vision devices that forgo electricity completely by converting the incoming photons from infrared spectrum into visible light.  

The major breakthrough ANU made is to successfully apply this unique nanocrystal on a plane of glass. The nanocrystal particle can be fabricated currently is 300 nanometers in diameter. Also, it requires light intense enough to make a conversion from infrared light to visible light. However, the research team hopes that further development will allow them to improve the efficiency and sensitivity of the conversion. By the time they are able to create a large quantity of these particles to cover the entire plane of glass, they can turn normal eye glasses to into night vision enabled goggles.

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Transparent as Glass - JDI Announced the Development of New Display Technology

Recently, Japan Display Inc. (JDI) demonstrated its high-transmittance LCD display at “JDI Tech Expo” held in Japan. It is reported that the prototype’s size and resolution are 4 inches and 300 x 300 respectively. The technology is expected to have wide applications in Augmented Reality (AR), automobile, and smart window display fields in the future.

The newly developed transparent display achieves a high transmittance level of 80%, 1.5 times higher than the previous technology and products. The new technology allows viewers to see the background image and the displayed foreground image clearly and contemporaneously, just like watching TV on a piece of glass. The transmittance of a previous model LCD display with a polarizing plate is merely “10-30% and OLED is 45%.

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The Thirteenth Five-year Plan for Energy Conservation and Green Buildings

Recently, the Ministry of Housing and Urban-Rural Development released “The Thirteenth Five-year Plan for Building Energy Conservation and Green Building Development”, aimed at establishing an energy saving, low carbon, green ecological, intensive, and highly efficient building energy use system, promoting the supply side structural reforms in the fields of residential housing and urban-rural development.

The objectives are to improve the energy efficiency for newly built constructions in cities and towns by 20% compared with 2015 while building energy conservation standards in some regions and for key architectural components such as windows and doors shall meet or come very close to the current international advanced level by 2020. The green building area shall account for more than 50% of total newly built constructions in cities and towns with the use of green building materials exceeding 40%. Through energy efficiency renovation of more than 500 million m² for existing residential buildings and 100 million m² for public buildings, the energy efficient housing among existing residential buildings in cities and towns shall account for more than 60 % nationwide.

The Thirteenth Five-Year Plan makes it clear that majority of future buildings shall be energy efficient in nature and encourages the use of new green building materials. At present, LandGlass has successfully developed fully tempered vacuum glass with U-value as low as 0.4 W/(m²·K). The outstanding performance of this product in thermal insulation and noise reduction while retaining the safety properties of fully tempered glass makes it an ideal choice for green, energy-saving, and passive buildings.

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Israeli Material Science Company Is Developing Transparent Glass Display Technol

Israeli material science startup Gauzy has just developed a new technology that can turn the transparent glass into a computer monitor screen. This innovation is based on its core technology called Liquid Crystal Controllers (LLC), which allow the opacity of the glass to be changed with minimum amount of energy. Gauzy’s technology can be applied to automobiles, elevators, vessels, or various residential windows and change the transparent glass into your computer monitor at a touch of a finger.

Mr. Peso, CEO and Co-Founder of Gauzy, together with his partner are years into development of liquid crystal sheets or films and other similar materials to what goes into LCD television screen displays. They found that the physical properties of the chemical coating on liquid crystal will be altered in response to certain magnetic fields to adjust the transmission of light. Gauzy has sold the LCD film to some glass manufacturers and taught them how to install its technology.

Gauzy expects that its technology will help to make our living environment more intelligent, interactive and diverse.

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Singapore Takes Passive Design Approaches in Green Buildings

“At present, many professionals focus on the cost of green building. It’s a misunderstanding. What we need to focus on is the value rather than the cost of the green building.” said Mr. Koh Linji, the Director of Singapore International Development Division, Building & Construction Authority recently at an interview with the media. Singapore’s green building technology has always been in the world’s leading position. The governments advance the “green building” as an important State policy. The purpose of Mr. Koh's trip to China is also to promote the "green building" concept of Singapore.  
Reporter: What can China learn from Singapore’s experiences?
Mr. Koh: As far as individual cases go, China is at the same level as Singapore since both adopt about the same technologies. But conceptually, Singapore has push the green building further forward.
Singapore cares about the approaches for passive house. In other words, we will make the building better in thermal insulation through design, reduce the use of artificial lighting by taking advantage of natural lighting, and adopt natural ventilation whenever it’s possible. The reduction of artificial lighting will save energy while natural ventilation can cut down emissions from mechanical devices. If one can do a good job on passive house structure, heat insulation, and building directions, the inner building climate will be effectively isolated from the external environment and won’t be affected by the change of external conditions. Less energy needs for heating and cooling appliances mean less consumption of energy.  
In China, people often believe that a green building must use renewable energy such as solar panels, geothermal heat pump, or wind energy.  Otherwise, it’s not a green building. That is a big misunderstanding. The main purpose of constructing green building is to reduce the damage to natural environment in terms of energy and water conservation. That by no means says that you have to use renewable energy.
Another misunderstanding is that it is only green when you plant trees. That is not right. At present, some architects are fond of green roof. We advocate green roof too, as the plants on rooftop do absorb sunlight and help reduce direct sunlight. However, there are also people believe that although trees stay green all year round, they get withered in winter in northern China. As trees cannot stay evergreen, they don’t promote green roof. Actually, when you have a layer of soil on the roof, even though the trees are withered in winter, it sustains temperature for the roots and prevents cold air from getting in through roof.
Reporter: From the cost perspective, between green house and ordinary house, how big is the difference?
Mr. Koh: No difference. Same here in China. Singapore emphasizes the application of existing economically sustainable techniques on green building.  It means that we don’t take the expensive hi-tech approach. I believe we should design green buildings based on the current technologies and materials, rather than letting hi-tech be the sole overriding factor. 
In Singapore, for instance, for a building that meets energy efficiency requirement, such as 10% energy savings, there is no cost difference. In China, according to China’s national standards,” Green Building Evaluation Criteria”, one star building is already green class. Someone did a survey and found out that the cost for one star green building was about the same as ordinary residential house. The cost for three-star would be 9% higher. But commonly-held perception is that green buildings are very expensive.
For example, green buildings must have solar panels. Because solar panels are expensive, so does the cost for the building. Actually, the cost for green building is about the same as a regular building. Green building doesn’t mean that you have to use renewable energy. That is a big misunderstanding.
Look at Chinese traditional dwelling units, such as Jiangnan’s gardens and Beijing’s courtyards. Many of them have the traits of a green building. Why? First of all, the buildings lie at a traditional north-south orientation, maximizing the use of sunlight in winter time. It'll keep the house warm without heating the brick bed. Secondly, numbers of patios in the design maximize the use of day light. Sunlight will shine into the house to reduce the need for artificial lighting. Moreover, it provides natural ventilation. That is the green building. It’s been around since ancient times. Traditional folk approaches are inexpensive and don’t require hi-tech.
Reporter: So, what makes it so hard to promote green building concept in China?
Mr. Koh: Most people support the concept of emission reduction. The question is how to implement it. That goes back to the topic we just talked about. There are a few conceptual misunderstandings in China. One is about the trees, the other is about the expensive cost. So, what we need to do in the coming years is to have this problem solved. As long as you do a good job on thermal insulation in your design and offer a comfortable environment under natural conditions, the cost will not be so high. 
We should not look at the construction cost only. We need to see the value and appreciation potentials of the green building and promote it from these two aspects. Currently, all local governments are very supportive in response to the policy of the Central Government. But there is still some resistance in private sectors. The main reason is that green buildings are believed to be very expensive.
Review Conference for Two National Glass Standards Held in Fujian
National standards review conference for “Light weight physically strengthened glass” and “Architectural safety glass, Volume 2” was held in Fujian. This review conference was jointly sponsored by the National Industrial Glass and Special Glass Standardization Technical Committee, China Building Material Test & Certification Group Co., Ltd., and the National Safety Glass & Quartz Glass Quality Supervision and Inspection Center, hosted by Fujian Xin Fu Xing Glass Co., Ltd. 48 experts from the industry standards committee examined the two proposed national glass standards and discussed the future directions in flat glass.
According to the introduction, “Light weight physically strengthened glass” for the first time classified 3 mm or thinner tempered glass that had been heat treated to enhance its mechanical strength. It plays an irreplaceable role in regulating glass product standards and promoting the healthy development of glass market.   
The purpose of this national tempered glass standards amendment is to provide unified standards for the properties of tempered glass, homogeneous glass treatment, system requirements, and its testing methods. The revision of these standards will positively contribute to the improvement of the nation’s glass safety, especially building safety. It will also help to promote the transformation and upgrade of the industry while effectively resolving overcapacity issues that the domestic glass industry is currently facing.   

US Develops New Anti-bacterial Glass That Kills 99.99% Bacteria in Germy Water
The Department of Energy’s SLAC National Accelerator Laboratory and Stanford University have created a device that can make use of more sun’s energy. In experiments, the device killed 99.999 percent of bacteria in just 20 minutes. The rectangle device has about half the size of a postage stamp device and looks like nothing but a little piece of black glass. It consists of thin “nanoflake” walls of molybdenum disulfide on a glass surface and each flake is topped with a thin layer of copper.
Under sunlight, the molybdenum disulfide and copper act as a catalyst, using that sunlight to produce hydrogen peroxide and other disinfectant in the water. When their work was done the killer chemicals quickly dissipated, leaving pure water behind.

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Technical Innovation Strategic Alliance for Passive House and Low Energy Buildin

In order to promote the overall development of low-energy building industry, 54 related enterprises led by the Center of Science and Technology of Construction at Ministry of Housing and Urban-Rural Development recently founded the Technical Innovation Strategic Alliance for Passive House and Low Energy Building Industry in Beijing. Zhaoxin Liu, the general manager of Heilongjiang Chennengshengyuan Real Estate Development Co., Ltd was named as the president of the alliance and Xiaoling Zhang, the director of international cooperation office of the Center of Science and Technology of Construction at Ministry of Housing and Urban-Rural Development as the secretary general.

The mission of the alliance is to: line up manufacturers, science and technology research institutions, and users in the industry chain for technical cooperation around the key issues in connection with the integration of the innovative construction technology for low energy passive house; to formulate industrial standards based on an integrated low energy passive house construction innovative technology system that can be adapted to different climate zones in China; to establish a technology and information exchange platform to further industrial cooperation on complementarities and sharing of resources; to reduce construction costs for low energy passive house while improving its building quality; to industrialize and extend the use of low energy passive house building materials and construction technology; and to raise the industrial core competitiveness by impelling the upgrade of building energy conservation industry.   

The main purpose of the Technical Innovation Strategic Alliance for Passive House and Low Energy Building Industry is to conserve energy resources and environment, to reduce smog and air pollution, to improve building quality and performance for a better living environment, to promote the development of low energy passive house construction along with the applications of its products and technology in China, to form industrial clusters for effective advancement in building energy conservation and overall upgrade of the building energy saving industry.

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The automatic identification settings of the control system in the glass tempering furnace

The control system of the glass tempering furnace can automatically set the heating temperature, convection intensity, and tempering air pressure as well as enabling effective heating areas according to the profile of the glass during heating process for a more accurate and energy efficient glass heating. Incorporated with prior processing experiences, it transforms the operating experiences into the production data to the maximum extent, retains such data for the automated analysis of the set parameters in the glass processing process, allocates the relevant data to achieve optimized combination, and monitors real-time data to make automatic adjustment for improved productivity.

The automatic identification settings of the control system in the glass tempering furnace

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What is Semi-tempered Glass?

Semi-tempered glass, also known as heat strengthened glass, is a kind of glass between ordinary float glass and tempered glass. It has some advantages of tempered glass, having strength 2 times higher than regular float glass while avoiding the disadvantages of tempered glass, such as unsatisfactory flatness and easy to explode.

Semi-tempered glass is not considered as safety glass as it will result in larger fragments and cracks in radial pattern when it’s broken. Although most of fragment will be free of sharp edges, it could still cause injury. Therefore, semi-tempered glass is not suitable for sunroof or places with high possibility of being bumped into.

What is Semi-tempered Glass?

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What are the requirements when winding kevlar rope onto the glass tempering furnace?

What are the requirements when winding kevlar rope onto the glass tempering furnace?

Use 12mmX3.5mm kevlar rope to wind the glass tempering furnace rollers according to the left and right rotating directions with the pitch distance of 40mm. The rotating direction of the last roller rope at the end of glass exit (close to the tempering furnace unloading table) is set to the right to unify the winding standard. 

What are the requirements when winding kevlar rope onto the glass tempering furnace?

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What should you pay attention to when tempering screen printed glass?

To protect the screen printed surface, the screen printed surface should be placed facing up when you feed the screen printed glass into the glass tempering furnace;

Make sure the screen printed glass is dry before tempering;

The screen printed glass may bend, which can be solved by adjusting the air pressure;

No S02 gas should be used during tempering. The glass tempering heating time is correlated with the color of the screen printed glass.


What should you pay attention to when tempering screen printed glass?

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