MUNDOMATERIAL

Traditionally considered a coarse fibre, kenaf is finding its place in the automotive and electronics market thanks to its use as reinforcement in composites. Its combination with PLA, a bioplastic sourced from corn, may illustrate the new focus of materials’ development nowadays. 2009 has been declared by the FAO the International Year of Natural Fibres. This is post is the third in a series dedicated to natural fibres. What is Kenaf? Kenaf, or Hibiscus Cannabinus, belongs to the Malvacean family and producers are based around the globe, although India and China are the major producers. Often compared with jute and hemp, kenaf applications could be classified as it follows: traditional uses, low value: rope, twine, clothing, animal bedding and feed Innovative Applications, medium value: Paper, engineered wood, environmental mat, oil and liquid absorbent material Kenaf Oil: edible oil, can also be used in cosmetics, lubricants and production of biofuel Composite materials, high value:... 
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DuPont and Denso corporation have collaborated to launch an automotive part made with a renewably sourced polymer. The novelty here is that the part is a radiator end tank that is going to be exposed to harsh underhood conditions. Correct me if I’m wrong, but it seems to me a very important breakthrough for bioplastics, going from disposable products to pure high performance. Of course, DuPont is not an ordinary plastic producer and Denso is not just a client. DuPont/Denso bioplastic radiator The part: automotive radiator end-tank The material: nylon The grade that made it: DuPont™ Zytel® 610 DuPont Renewably Sourced Materials The launch of a bioplastic underhood car part is well framed within DuPont’s strategy towards better environmental practices, it is certainly not an isolated movement. Through an alliance with Tate & Lyle, of which I have already written here, DuPont can now commercialised several plastics with renewable content, as well as polyols. DuPont... 
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I wanted to write about materials used in cars for a while, in particular about the main uses of plastic. The automotive sector is being hardly punished by the crisis, both OEMs and tiers suppliers. For example, in 2008 in Spain both the automotive and the plastic markets suffered job losses of 39.080 y 11.480 respectively (Source: La voz de Galicia, 16 February 2009). Plastic is essential in cars today, it’s used everywhere. I invite you to have a look at your car and try to guess which parts are made in plastic, apart from the terribly obvious ones. It is not easy, if you consider that around 20% in weight of a car manufactured today is plastic. The advantages that plastic offers are low weight, low cost and ease to mass produce parts. In fact, it is thanks to plastics that our average car consumes less, simply because they make it lighter. Plastic was first used in car interior, in the dashboard, the foam of your seats, the driving wheel, etc. Today it is more difficult to say... 
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source: www.freefoto.com I have already discussed the WEEE directive, dealing with waste of electronic and electrical equipment, in my post on WEEE and RoHS. Today I shall talk about another waste directive, the one dealing with vehicles, commonly known as the ELV directive, or directive 2000/53/EC. Similarly to the WEEE directive, the ELV directive promotes waste reduction, sets progressive recovery and recycling targets and puts responsibility on vehicles producers. These are the recycling and recovering targets set for 2006 and 2015: 2006: 85% of reuse and recovery and 80% of reuse and recycling 2015: 95% of reuse and recovery and 85% of reuse and recycling The unusually high targets were not chose at random. Before the introduction of the directive around 75% weight of a car was already being recycled, as the metal content is over 80%. This percentage tends to diminish in new cars, as more plastic alternatives are used. By increasing the percentage that needs to be recycled, the directive... 
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