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Issue 03/2019

Highlights: Toys Injection Moulding Basics: Microplastics Mind the right terms Captured CO2

Injection Moulding

Injection Moulding Optimizing PLA for injection moulding Founded in 2014, Arctic Biomaterials Oy (ABM) from Tampere, Finland is now divided into two segments: Medical materials and Technical materials. On the medical side of the business, ABM offers innovative raw materials for bioresorbable implant applications such as anchors, pins and screws. This market has never before seen materials with loadbearing properties as high as those in these new materials developed by ABM. This is due to the resorbable glass fiber that ABM has developed. This article, however, will introduce three of the company’s new Technical materials. The background and motivation for these innovations is the willingness to contribute to efforts to decrease global warming and to enable the use of sustainable solutions in an increasing number of applications. These materials allow brand owners to design products with a lower carbon footprint, and hence to contribute to the sustainable targets that countries have globally committed to. ABM previously introduced a degradable glass fiber for use as reinforcement for biopolymers, for which the company received the 2018 “Bioplastic material of the year” award (from nova Institute). In this article, the focus will be on new materials without the degradable glass reinforcement. ABM has adopted a global approach to the market. The three different materials that are introduced here are all PLA-based materials. The end-of-life options for these materials are basically the same as for fossil-based plastics, i.e., incineration or recycling, albeit with the addition of industrial composting, depending on the applications. Through industrial composting, the materials will be transformed into biomass and CO 2 . This CO 2 will eventually be absorbed back by the plants via photosynthesis, thus closing the carbon cycle. ABM also works with other biomaterials such as PBS, PHB, starch and more, always depending on the customer’s requirements regarding mechanical properties and endof-life solutions. However, ABM is not a polymer producer. As a specialty compounder, their strategy is to enhance the properties and reinforce the current bioplastics that are available in the market. ArcBiox MFA30-B2000, improved temperature resistance with fast cycle and cold mould This novel PLA-based mineral filled material has been developed with a view to improving processability. Temperature resistance has always been one of the challenges for PLAbased materials, as high mould temperatures (110 °C) are required and long cycle times (60 s) needed in order for the material to withstand temperatures above 50-60 °C (HDT B). ArcBiox MFA30-B2000 offers a HDTB of 96 °C and faster cycle times, while the mould temperature can be as low as 30-50 °C. Potential applications for ArcBiox MFA30-B200 range from houseware products to cosmetics; the material truly opens a new window for applications where processing has been the barrier. ArcBiox B1005, improved impact properties ArcBiox B1005 was developed as an alternative to fossilbased plastics similar to ABS. The focus has been on improving the impact properties of PLA-based materials. The applications mainly comprise different kinds of housings and covers. The material can be processed in a hot or cold mould. The hot mould will result in extra temperature resistance due to the crystallization of the PLA. In a hot mould, impact properties of 40 kJ/m² (IZOD notched) and NB (no breakage - IZOD unnotched) can be achieved. In a cold mould, these values are 20 kJ/m² (IZOD notched) and 140 kJ/m² (IZOD unnotched). The general impact values for ABS would be 20 kJ/m² (IZOD notched) and NB (no breakage - IZOD unnotched) ArcBiox B2004, excellent hinge properties ABM’s new ArcBiox B2004 has been specifically designed to offer excellent hinge properties. This grade provides a viable solution for e.g. caps and closure applications. While some development is still ongoing as regards elongation at break, hinge properties of this quality have not been achieved before in a PLA-based material. The experts at ABM aim to fully satisfy the needs of their market. To that end, they always listen to their customers’ requirements in terms of mechanical properties and assess the end-of-life solution offering the best value proposition. The polymer matrix and compound or reinforcement can then be chosen which best meets these requirements. The product photos are generic pictures to show possible applications. These are not commercial products. MT 30 bioplastics MAGAZINE [03/19] Vol. 14

Automotive The World’s No. 1 Trade Fair for Plastics and Rubber Home of Innovation. K 2019 No matter what your focus is – circular economy, digitalisation, Industry 4.0, lightweight construction, additive manufacturing, advanced materials or other forward-looking topics in the global plastics and rubber industry – K 2019 is the place to be to scout for new solutions. The fascinating forum for innovation and investment. The industry’s most important business platform. Around 3,200 international exhibitors offer you the latest in research and development. Welcome to the show! Messe Düsseldorf GmbH P.O. Box 10 10 06 _ 40001 Düsseldorf _ Germany Tel. +49 211 4560 01 _ Fax +49 211 4560 668 bioplastics MAGAZINE [03/19] Vol. 14 31

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