bioplastics | Innovation Bio-polyamide for optics


EMS-Grivory says its bio-based Grilamid BTR glass clear high-performance polyamide from its GreenLine range has outstanding resistance to chemicals, very good toughness, scratch resistance and especially low density. It is produced from castor oil derivatives. The Italian fashion label Lara D’ makes use of these properties to make the lightweight, bendable spectacles frames pictured. For non-transparent optic products, EMS-Grivory offers the bio-based PA1010 Grilamid 1S. “One peculiarity of Grilamid BTR and Grilamid 1S is the excellent bonding strength which allows interesting design variants to be achieved using two-component injecting moulding,” the company notes.


DuPont continues to make inroads into the market with its Sorona EP bio-based thermoplastic polyester (polytrimethylene terephthalate, PTT), which has properties similar to (and in some cases better than) PBT. Sorona can also compete with ABS-based materi- als, thanks to its very good surface gloss, colour stability, scratch resistance, and processability. Made using renewably sourced propanediol (PDO) derived from corn sugar, resins have a renewables content of 20-37%. In its latest application though, Sorona EP is replacing a thermosetting polymer, urea formaldehyde, in premium toilet seats and covers. The seats are produced by Turkish company Eczaciba¸


si, which is collaborating


with DuPont on a cobranding exercise to emphasize the sustainability of the solution. The toilet seat/covers are part of the company’s VitrA flagship brand. Eczaciba¸


raw materials by renewable resources; it is now working on doing the same thing with softer grades. FKuR Polymers introduced the new products at K2016 last October. “The interest in bio-TPE was enormous,” says Managing Director Christian Dohmen. More recently, FKuR extended its product range of


cellulose acetate-based injection moulding grades. Biograde C 5509 CL and C 5508 are both based on a newly developed combination of raw materials and additives. Bio-based content is over 65%, 15% more than the original grade, C 9550. The cellulose used for Biograde originates from sustainable forestry wood. The transparent Biograde C 5509 CL is thermally


si, one of Turkey’s largest industrial groups,


has a strong emphasis on promoting sustainable lifestyles with its Blue Life program, for example with bathroom products that save on water usage. Brands in its Building Products division are manufactured in plants equipped with specifically designed recycling systems reducing raw material and power consumption. According to DuPont, Eczaciba¸


production times by some 70%, and is also saving energy. “The use of Sorona raises the quality of the product in terms of chemical, mechanical and scratch resistance, provides a glossy surface and supports the positioning of the VitrA brand as environmental friendly,” says a DuPont representative. This project is the first sanitary application of Sorona. Eczaciba¸


si is


Right: Toothbrush with handle made of FKuR’s Biograde cellulose acetate


26


using an unreinforced grade, Sorona 3301. German compounder FKuR Polymers’ portfolio of


polyolefin and thermoplastic elastomer (TPE) compounds now contains bio-based TPEs with a “high to very high” proportion of renewable raw materials. It already offers high-hardness Terraprene grades, in which it says it has substituted up to 90% of the petroleum-based


INJECTION WORLD | March/April 2017


stabilized to give it a heat distortion temperature (HDT B) of 80˚C. It can be used for the production of components with thin wall thicknesses and long flow paths. Biograde C 5508 is translucent and has a lower MFR (18-25 g/10 min, compared with 40-56 g/10 min [230˚C/5 kg]), making it more suitable for smaller and thicker-walled injection- moulded parts. Typical application areas include parts for electronics and appliances, as well as consumer products such as toothbrushes, pens, and cutlery.


si has been able to cut


Click on the links for more information: ❙ www.natur-tec.com ❙ www.natureworksllc.com ❙ www.aimplas.net ❙ www.total-corbion.com ❙ www.biomer.de ❙ www.bio-on.it ❙ www.ict.fraunhofer.de ❙ www.tecnaro.de ❙ www.natureplast.eu ❙ www.greendotbioplastics.com ❙ www.braskem.com.br ❙ www.cathaybiotech.com ❙ www.emsgrivory.com ❙ www.dupont.com ❙ www.fkur-polymers.com


www.injectionworld.com


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66