ADDITIVES | IMPACT MODIFIERS
Above: Italian company Edilplast is using a bio-mass attributed impact-
modified ASA from Ineos Styrolution in its new roofing sheet
strike a balance between transparency and physical and flow characteristics. Kraton says its latest SBC innovation offers improved impact performance, maintains the stiffness profile, and offers very good transparency while providing flow characteristics conducive to thin wall injection moulding. It also provides a reduction in haze value of more than 20% against a standard SEBS solution (more than 30% over a typical POE solution). It also outper- forms existing POE and SEBS solutions with a 20% impact improvement over existing SEBS and a 30% impact performance improvement over existing POE alternatives.
Nano developments Nano-additives present a new and developing alternative to traditional impact modifiers. Earlier this year, Black Swan Graphene announced availability of a range of Graphene Enhanced Masterbatch (GEM) products claimed to provide a 30% improvement in impact resistance. The GEM grades are the result of independent development and verification carried out with the Graphene Engineering Innovation Centre (GEIC) in Manches- ter, UK, and a strategic partnership with specialist UK-based compounder Hubron. GEM grades are available with a graphene
loading ratio of up to 20% are in various polymers. Initial production volumes are focused on applica- tions in PP, which Black Swan says is a versatile and cost-effective polymer but is hampered by a relatively low impact resistance. The company says the incorporation of 1% of graphene results in a 30% improvement in impact resistance (notched Izod). It says graphene enhanced products offer multiple performance benefits, including enhanced processability and cost-effectiveness. Black Swan says the GEM products have potential across multiple industries, but particularly highlights packaging and lightweighting in the
48 COMPOUNDING WORLD | April 2024
transportation sector. It says it is working with Hubron and a major polymer manufacturer to develop plastic materials for electric vehicles aimed at reducing weight, expanding design freedom, reducing complexity, enhancing thermal management, and reducing overall environmental impact. The programme has so far resulted in a 20% improvement in tensile strength based on a loading ratio of just 0.2%. “These results further add weight to the poten- tial benefits of incorporating graphene materials into thermoplastics,” says Robert Laurent, Technical Director at Hubron. “A 30% impact resistance improvement is exciting, and we are looking to expand these trials into commercial applications. We are also able to fine-tune compound properties to deliver customer specific solutions.” Among the latest additions to the Luran S line of
styrenic compounds from Ineos Styrolution is Luran S MED 797S SPF30, an ASA grade targeted at small injection moulded housings for portable medical devices. Available in natural and white, the new grade provides the impact resistance required over the predicted operating temperature range and, like many grades in the Ineos Styrolution product portfolio, is available with a mass balance attibuted renewable feedstock content. The company says sustainability is becoming an
increasingly important consideration with regard to impact modification. It says styrenics in general, and PS in particular, can be recycled using almost any existing recycling technology, can be produced with bio-circular feedstock, and can be readily modified to suit applications where impact resist- ance is crucial. (Also see page 16 in this issue.) Mass balance bio-attributed ECO styrenic
grades are now being used in a number of applica- tions. Last year, Italy’s EdilPlast, part of First Corporation group, selected Ineos Styrolution’s Luran S ECO ASA material for use in its Cover Innovation roofing sheet. And last month toy producer Playmobil said it is to convert items in its Playmobil Junior playsets to Terluran ECO GP-22 BC100 ABS, with impact modified MBS Zylar ECO 960 BC90 used for the transparent parts.
CLICK ON THE LINKS FOR MORE INFORMATION: �
https://sk-fp.com �
https://plasticadditives.arkema.com/ �
www.fineblend.com.cn �
www.lubrizol.com/Engineered-Polymers �
https://kraton.com �
www.blackswangraphene.com �
https://hubron.com �
www.ineos-styrolution.com
www.compoundingworld.com
IMAGE: EDILPLAST
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