Tuesday, December 24, 2013

UD's Prof. Wins EPA's Presidential Green Chemistry Challenge Award for Developing Biobased Composites

The Environmental Protection Agency has honored the University of Delaware's Richard Wool with its Presidential Green Chemistry Challenge Award for his extensive work developing bio-based materials to support the green energy infrastructure.

Wool was recognized during a presentation at EPA headquarters in Washington, D.C.

Now in its 18th year, the EPA awards program recognizes the design of safer and more sustainable chemicals, processes and products. Awards are conferred annually in five categories: Academic, Small Business, Greener Synthetic Pathways, Greener Reaction Conditions and Designing Greener Chemicals.

Wool, UD professor of chemical and biomolecular engineering and director of the Affordable Composites from Renewable Resources (ACRES) program, is among the world leaders in developing safer chemical substances from renewable resources through processes that require less water and energy, and produce less hazardous waste compared to petroleum-based processes.

The products can be used as adhesives, composites and foams — even circuit boards, hurricane resistant energy efficient roofs and leather substitutes. "Finding low toxicity replacements for commodity plastics such as polystyrene and PVC, adhesives, foams and composite resins, in addition to leather-like materials, must be a priority if we are to benefit the environment and human health," said Wool.

Wool became passionate about sustainability in the early 1990s when he served as chairman of the American Society for Testing and Materials committee for biodegradable plastics. The committee included representatives from the farming community, state governments and major corporations, as well as environmentalists and members of the academic community.

"I became critically aware of the issues surrounding waste management, recycling, climate change and the protection of our natural resources," he said. "I began to wonder if there was a better way."

This motivated Wool to incorporate green chemistry and green engineering solutions into his research. He created several high-performance materials using biobased feedstocks, including vegetable oils, lignin, chicken feathers and flax. He developed hurricane resistant roofing with colleagues in UD's civil and environmental engineering department in response to issues in global warming. He has also signed a memorandum of understanding (MOU) with the South African government to further its development of biobased township housing using ACRES inventions.

In 2012, Dixie Chemical began producing Wool's bio-based composite resins for a worldwide market. His discoveries have led to the development of soy-based composites used in boats, tractor panels and wind turbine parts.

One of Wool's more recent inventions is a breathable, bio-based eco-leather that avoids the traditional leather tanning process. This environmentally-friendly product, developed as a collaboration between researchers in Wool's ACRES group and colleagues in UD's fashion and apparel studies department, has resulted in collaborations with well-known companies such as Nike, Puma and others to use the leather substitute in their products. He shares a patent with Nike on the development of its new environmentally friendly air bubbles for athletic shoe wear.

"Ten years ago, green chemistry and engineering was a novel concept, but today, we are reaching a critical mass of individuals focused on sustainability and the environment," said Wool. "This award lends credibility to what we are doing, and my hope is that it will cause some to give us a second look."

Current and former students and colleagues in the ACRES group who contributed to Wool's green research will also be recognized during the ceremony.


Source: University of Delaware



Thursday, December 19, 2013

Eastman Tritan™ Copolyester Finds Application in Air Sentry's New Line of Desiccant Breathers

Air Sentry, among the leading manufacturers of contamination control products, looked to Eastman Tritan™ copolyester to help create a new standard for its line of desiccant breathers. The company, based in Rockwall, Texas, selected Tritan, a new-generation copolyester, for its toughness and chemical resistance, and because it is free of bisphenol A (BPA).
Guardian, Air Sentry's newest line of desiccant breathers, is the company's first product line to be made with Eastman Tritan™ copolyester. The devices are cylindrical with a clear, extruded tube made with Tritan at the center. The product is designed to replace the original equipment manufacturer breather cap or air filter on gear boxes, hydraulic fluid reservoirs, bulk storage tanks, oil drums, transformers and other fluid reservoirs.

Downtime reduced; new applications realized:

Moisture breaks down the properties of lubricants and fuels creating equipment wear as harmful as wear from debris. According to Air Sentry, contamination-related lubricant failure accounts for more than 70 percent of unplanned equipment downtime. Guardian is designed to adsorb water from the air before it enters the fluid system and removes particulate contaminants as small as 2 micron. With these breathers, approximately 95 percent of all humidity going into the equipment headspace can be removed.
"We searched for a material that could exceed existing performance limitations with regard to temperature, chemical and impact resistance and that also was BPA-free," said Scott Dunbar, vice president, filtration and protective coatings. "Extensive research led us to Eastman Tritan™ copolyester, which has the best combination of the qualities we were looking for."
With these desirable properties, Eastman Tritan™ copolyester allows users to install Guardian in areas where previous installations had to be remotely mounted or were not suitable for plastic breathers, including those subject to higher temperatures, vibration and exposure to chemicals.

New process:

Air Sentry had such confidence in Eastman Tritan™ copolyester that it upgraded its fabrication process to manufacture its Guardian line. The spin-welding technique allows for a single-piece manufacturing flow rather than batch processes used for its other lines. Eastman provided support as Air Sentry moved to the new process, which has reduced cycle times.
"Eastman's technical support and expertise in plastic molding techniques has been greatly valued," Dunbar said. "The extensive test data available for Eastman Tritan™ copolyester gave us confidence we were developing a product that would differentiate itself in the market."
Air Sentry has been pleased with Guardian's performance, and the product has seen a strong, positive market response. The new product — which Dunbar noted is the best new product launch in the company's history — helped Air Sentry increase market share in a short time.
Air Sentry is investigating additional applications using Eastman Tritan™ copolyester. The continued collaboration between the two companies provides additional opportunities to demonstrate Tritan performance in industrial applications.
"Eastman Tritan™ copolyester has been used extensively in the durables and medical markets, and this collaboration shows the material also is an excellent option for a variety of industrial applications," said Rob Costella, durables, market develop manager, Eastman Chemical Company. "Eastman is committed to working with its customers to develop products that have game-changing potential."
Air Sentry's products are sold worldwide to industries that use capital-intensive equipment to produce their products and services. The products are typically sold through distributors who carry other industrial products or lubricants.


Source: Eastman Chemical Company

Friday, December 13, 2013

Evonik's SEPURAN® Green Membrane Tech. Gets 2013 German Innovation Prize for Climate & Environment

With a level of purity approaching 99 percent, SEPURAN® Green high performance polymers from Evonik Industries make biogas processing much more efficient. For this achievement, the company has now received the 2013 German Innovation Prize for Climate and the Environment in the "Environmentally friendly technologies" category. The prize is awarded by the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) and the Federation of German Industry (BDI). Dr. Dahai Yu, responsible for the Specialty Materials Segment in the Executive Board: "Innovations are a major contribution towards overcoming the challenges of the future. This also includes securing energy supplies practically from economical, ecological, and social aspects. With SEPURAN® Green, Evonik shows what the chemical industry can do to make this happen."

Biogas, which consists mainly of the gases CO2 and methane, is regarded as an environmentally friendly form of energy. Before biogas can be fed into the natural gas grid it requires a considerable amount of processing and cleaning. The SEPURAN® Green membrane technology from Evonik now makes this process much more efficient and environmentally friendly.
"Our SEPURAN® membranes are made from a high performance polymer that we developed in-house," says Dr. Goetz Baumgarten, Head of the SEPURAN® business. "This polymer gives the membrane a particular property so that it is especially able to distinguish between methane and CO2."
But the membrane alone is not enough. A conditioning process for biogas, tailored especially to the membranes from Evonik, makes optimum use of their separation properties: In a three-stage process, the methane can be concentrated out of the crude gas with just one compressor and an especially high methane yield. In addition, the methane-rich gas does not have to be compressed further before it is fed into the natural gas grid.
This membrane process is up to 20 percent more energy efficient than alternative methods. Besides, no auxiliary chemicals are required. No waste or wastewater is produced.
Evonik initially trialed SEPURAN® Green in a test plant beside the Vöckla River in Neukirchen, Austria. Since then, several biogas processing plants using SEPURAN® Green technology has been put into operation. Evonik is continuing to develop the SEPURAN® technology for new applications, such as separating hydrogen and recovering nitrogen from compressed air.
With the German Innovation Prize for Climate and the Environment the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) and the Federation of German Industry (BDI) acknowledge German industry's commitment to climate and environmental protection. This year was the fourth time that the prize has been awarded. The winners were chosen from among 97 contestants in five categories.


Source: Evonik

Thursday, December 5, 2013

Toyota Develops PP- & Plant-derived PA11-based Plastic Alloy with High Impact Strength

Toyota Boshoku Corporation, among the premier manufacturers of automotive interior systems, and Toyota Central R&D Labs., Inc., contributing to present and future businesses of Toyota Group companies through technological innovations, announce that they have developed an original technique to realize a bio-based plastic alloy with top-class impact strength. The bio-based plastic alloy (bio-alloy) is made from polyamide 11 (PA11), a 100% bio-based resin originating from plants and synthesized by castor oil*1 extracted from Ricinus Communis (castor bean plant) as a raw material, and polypropylene (PP) derived from petroleum-based resin. The performance of this high impact bio-alloy surpasses polycarbonate alloys.

The impact strength of the bio-alloy was achieved by controlling the phase structure of PP and PA11 at the nano level through a "salami structure*2" mixture (dispersion) resulting in the world's first "salami in co-continuous phase structure*2". To improve the chemical characteristics (affinity) of raw materials, a special reactive compatibilizer was added to the raw materials and a molten blended technology was carried out to lead to a chemical reaction. By utilizing this technology, Toyota has achieved an impact strength bio-alloy that is 10 times greater than that of PP conventionally used in car interior decoration parts and 13 times greater than that of bio-based plastic (PP/PLA). When this bio-alloy is put to practical use, the adaptation of bio-based plastic for automotive parts can be significantly expanded. In particular, interior decoration parts such as automotive door trims, installment panels or as a collision energy absorber to increase part safety impact strength and rigidity that are necessary for passenger protection at the time of crash. Furthermore, this bio-alloy can be applied to exterior automotive parts made from resin such as fenders or bumpers.

Toyota Group's Toyota Boshoku and Toyota Central R&D Labs., Inc. plan to further improve the development of this technology including material technology aimed at early practical use of this bio-alloy, to contribute to the making of cars that harmonize with the global environment.
*1 Seeds of the castor plant (a non-edible plant) of the Euphorbiaceae are cultivated in tropical and temperate zones. PA11 is obtained by the polymerization of 11-amino undecanoic acid derived from the extraction of castor oil.

*2 The phase structure of compound resin is formed from numerous raw materials. The name "salami structure" came from the resemblance of a cut section of salami with the "salami structure" consisting of three parts: 1) the "lake" phase in the "island" (dispersion) phase, 2) the "island" phase in the "sea" (continuous) phase and the 3) "sea" phase. The "salami in co-continuous phase structure" has a salami structure in each continuous phase. In addition, at this time there are no reports of salami in co-continuous phase structure, this is the first such report (as of October 2013 per company research).


Source: Toyota Boshoku Corporation

Saturday, November 23, 2013

bio-on Designs 100% Biodegradable Bioplastic to Reduce Environmental Impact of Electronic Devices

With 50 million tons of waste produced worldwide every year, electronics (smartphones, tablets, computers, etc.) are now a serious problem for the environment. To reduce the impact of the so called e-waste, a new contribution has arrived in the form of the revolutionary bioplastics designed by bio-on: this polymer (100% naturally biodegradable in water and soil) can be used as a substrate for electrical circuits. When combined with suitable nanofillers, it can act as an electricity conductor, with extraordinary, as yet unexplored potential.

"In this way it's possible to build electronic devices with a reduced environmental impact - Marco Astorri, CEO and co-founder of bio-on, explained during Maker Faire Rome — but the use of bioplastics will not be restricted to smartphones and tablets. We can extend it to highly advanced technological sectors, thanks to the multiple features of our bioplastics, their outstanding technical performance and excellent biocompatibility. In the future — added Astorri — this will also enable us to develop sensors and electro-medical equipment for health care".

The possibility of incorporating electrical and electronic circuits in plastic substrates, to obtain flexible, lightweight and easily integrated electronics, has been the subject of investigation by a team of Italian researchers from the Departments of Engineering of the Universities of Modena-Reggio Emilia and Perugia. They integrated carbon nanoparticles like nanotubes and graphene into bioplastics produced by bio-on, making them suitable for the development of sustainable electronics. The preliminary results of this research were presented in Rome during BIOPOL 2013, the International Conference on Biodegradable and Biobased Polymers.

"This type of plastic reduces the environmental impact of the device — according to Paola Fabbri, a researcher at the Enzo Ferrari Department of Engineering of the University of Modena and Reggio Emilia — making recovery easier and cheaper. As much of the plastics currently used in electronics can now be replaced by biopolymers such as bio-on's, many businesses can already benefit by reducing the impact of the life cycle analysis (LCA) of electronic devices, as recommended by the European legislation".


Source: bio-on

Friday, November 22, 2013

BMW begins series production of i3 electric car

BMW has started series production of the BMW i3 urban vehicle, which features a passenger cell made from carbon fibre reinforced plastic (CFRP). BMW says this is the first time that CFRP has been used in high volume automotive production.The i3 is being assembled at BMW’s plant in Leipzig, Germany, where some €400 million has been invested in new structures and machinery for the production of BMW i models and 800 new jobs have been created.




   The production network for BMW i also sees key components manufactured at BMW Group plants and joint venture facilities at Moses Lake in the USA and Wackersdorf, Landshut and Dingolfing in Germany.
   The company has invested a total of around €600 million in the BMW i production network and generated over 1500 jobs.Deliveries of the BMW i3 to customers in Germany and other European countries will begin in November, with the car’s launch in the USA, China and other markets to follow in early 2014.
   “Today represents a milestone in our company’s development,” explains Harald KrĂĽger, BMW Board Member for Production. “We are making history with the BMW i3. Not only is our first electric car about to hit the road, we are also completely redefining sustainability with regard to personal mobility..”
   Source:BMW

Thursday, November 21, 2013

Boeing rolls out first 787-9

BOEING has completed its first 787-9 Dreamliner, the second member of the 787 family. The aircraft was moved to the flight line, where teams are preparing it to fly shortly.
   The Boeing 787 Dreamliner’s construction is 50% composite materials. At 20 ft (6 m) longer than the 787-8, the 787-9 will extend the 787 family in both capacity and range, carrying 40 more passengers and has an additional range of 300 nautical miles (555 km).



 (The Ăżrst 787-9 rolled out of Boeing’s Everett, Washington, factory on 24 August.)

   The second and third 787-9s are in assembly. First delivery to launch customer Air New Zealand is set for mid-2014.
   At the Paris Air Show earlier this year, Boeing launched the 787-10 Dreamliner, the third and largest member of the 787 family.

Source:www.boeing.com

Today's KNOWLEDGE Share : Electron Paramagnetic Resonance

Today's KNOWLEDGE Share Electron Paramagnetic Resonance (EPR), also known as Electron Spin Resonance (ESR) , is a spectroscopic techniqu...