Electromobility and fire safety

The degree of electromobility in the automobile industry will increase steadily over the coming years and is perceived as a very attractive emerging market. However, rapid structural changes are unlikely as many general problems surrounding electromobility have yet to be solved. One of these is fire safety. A breakthrough is expected rather in the medium term. Out of 100 million newly produced vehicles in 2020, Bosch expects to see some three million electric cars and plug-in hybrids, as well as six million hybrid vehicles. China has set itself the ambitious target of building roughly one million battery-powered vehicles per year from 2012 on.

Electro mobility: Batteries

To make battery-powered vehicles attractive to the mass market without subsidization, the cost of batteries would have to fall by approx. 70-80%. One step to reduce costs is to develop lightweight Lithium batteries by substituting heavyweight metal casings by lightweight polymer systems. One major approach is the development of suitable safety concepts for electrical vehicles. The main points are the handling of high voltage (400 V), and the safety optimization of batteries against crash and overcharge, as well as fire.

Polymers used for lightweight casings of Li-batteries must meet high flame retardancy requirements in crash tests, and in minimizing their contribution to fires caused by short circuits of lithium-ion cells. Another focus is the fire risk of electrical vehicles when charged in garages at home. Besides battery systems with high fire safety, the charging station and connections have to meet high fire safety requirements such as UL94 V0, or better 5V. The fire safety level to US FMVSS 302 currently globally required for interiors of conventional road vehicles is by far too low and will have to be adjusted to the UL94 V0/5V level for electric vehicles. (source :http://www.flameretardants-online.com)

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Pinfa Newsletter

Download pinfa Newsletter_Issue 7February_2011 here (pdf Format)

SP fire technology Newsletter- March2011

SP fire technology Newsletter is now available. For pdf format: Click here

BASF to launch new textile-FR

As a leading supplier of additives and pigments for the nonwoven industry, BASF offers a comprehensive portfolio of heat and light stabilizers such as Chimassorb and Uvinul , a range of Irgaguard antimicrobial additives, as well as an assortment of Heliogen blue and green pigments. At this year’s Index, BASF will be presenting the innovative technology Irgatec CR 76 for nonwoven production. This technology enables converters to adapt material properties to the specific requirements, for example to make use of more cost efficient raw materials or to convert in-house nonwoven scrap to high-quality nonwoven. Another focus in BASF’s portfolio for nonwoven manufacturers is the halogen-free flame retardant Flamestab NOR 116 which is said to combine flame retardancy and light stability in one molecule. One area of application for Flamestab NOR 116 is in textiles for roofing.  ( source: click here)

 

Fundamental study on the fire behavior of silicone composites

Fundamental study on the fire behavior of silicone composites: thermal stability, cohesion residues, and calorimeter tests-  The PhD thesis has been successfully defended in Alès – France, February 25, 2011- Siska Hamdani Devarennes

 Summary:
This PhD work has been devoted to the study of the thermal behavior of silicone composites. A preliminary review on the flame retardancy of silicone reported numerous works devoted to the development of thermally-resistant silicone composites or silicone polymers used as flame retardant agents in other organic polymer matrices. The first part of our experimental work highlighted the key role of macromolecular chain immobilization, through the synergy of platinum and silica, in generating high ceramized residue content after thermal gravimetry. The second part of this work was dedicated to the study of silicone composites filled with either calcium or aluminum-based fillers. The filler nature (non hydrated, water releasing or hydroxyl groups on the surface), the morphology and the particle size strongly influenced the thermal behavior of silicone composites. The analyses on composites residues after extreme pyrolysis showed that the formation of new crystalline structures and the absence of water release favored the residue ceramization. The investigation on fire reaction of silicone composites finally granted their outstanding properties to the matrix thermal stability and/or a barrier layer formation. For more information, you can contact: 

Jose-Marie.Lopez-Cuesta@mines-ales  or  siska.hamdani@mines-alès.fr

Prof. Menachem Lewin Passed Away

Prof. Menachem Lewin Passed Away at the age of 92 in Jerusalem. Prof. Lewin founded the  Association for Textile Research and developed new uses for bromine which is found in large quantities at the Dead Sea. He published 175 scientificIn 1990, Lewin founded the journal, Polymers for Advanced Technologies, published by Wiley. He also organized many international conferences such as Polymers for Advanced Technologies and Recent Advances in Flame Retardancy of Polymeric Materials. Lewin won many awards and much recognition including the Geneva University Habif Award for outstanding cellulose research in 1959, honorary citizenship of the city of Jerusalem in 1993, the Founders Award of the International Fiber Society in 2005, and the Semplen Award from the Hungarian Academy of Sciences in 2005. papers and 20 books on chemistry and technology of polymers and fibers.

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