ADDITIVES | BIOCIDES
Right:
Americhem is extending its nShield textile antimicrobials to moulded and extruded plastics
Saniconcentrate LLDPE and PP0016 Saniconcen- trate PP Random to its line of concentrates for plastics. The company also offers concentrates for PE, PP, PC, PS, ABS, TPU, and PVC, and is develop- ing products for PC, PET, and PA. The new LLDPE and PP-random concentrates were tested (in injection moulded samples) by an independent lab using ISO 22196 to measure the antibacterial performance on the surface of the samples. “Both materials give the highest possible result from the test reaching an antibacterial efficacy of over LOG>5.6 for
E.Coli and Log>4.0 for Staph. aureus bacteria,” the company says.
Below: LifeSaver’s Liberty portable water filter bottle with in-line pump uses SteriTouch antimicrobial additives in all post-filtration parts
Compound benefits The consumer popularity of antimicrobial and odour-reducing technologies in fibres and textiles is now reaching back into plastics compounds and masterbatches. Americhem, for example, has expanded its range of nShield antimicrobial functional additives. Well established in non-woven and fibre markets such as textiles and carpets, Americhem announced in April 2018 that it is expanding the technology to provide solutions for moulded and extruded parts in polymers including PA, PE, PP, TPE, TPO, PVC and others. The antimicro- bial products are formulated for the end application requirements, efficacy targets, microorganisms they are trying inhibit, and product longevity. “We are taking our expertise in perfecting
antimicrobial additives for applications like odour-resistant garments and are applying that knowledge to help promote public hygiene and general cleanliness,” says Vaman Kulkarni, Director of Technology and Business Development, Extrusions for Americhem. “We now offer antimi- crobial additives for everything from consumer goods that are frequently touched, like baby changing stations, to applications that require strong antifungal protection, like fuel tanks. We have the tools to deliver solutions at the right performance point for each customer.” In addition to nShield in masterbatch form, Americhem also offers InHibit as a fully com- pounded solution for plastics. Both are available on a global basis, says the company. SCOPIC is a new brand from Steritouch
dedicated to metal and X-ray detectable master- batches and compounds used in the food and pharmaceutical industries. It aims to detect and remove any foreign particle contamination before it reaches production. One of the first products under the new brand is a combined antimicrobial/detectable compound for hygienic environments where both foreign
38 COMPOUNDING WORLD | July 2018
body and bacterial contamination could be an issue, according to the company. Applications for the materials could range from
spatulas and clipboards to pallets, crates, and conveyor belts. With increasing automation in the food industry, demand is high for belting, says SteriTouch. Materials for modular conveyor belting include TPU and PVC, where the new material provides antibacterial properties that will remain effective for the lifetime of the belt. “SteriTouch, when used alongside a normal cleaning regime, will reduce the risk of cross contamination from bacteria such as
E.Coli, Listeria and Salmonella,” says the company. SteriTouch moved late last year to a new, expand- ed R&D and production facility in South Wales in the UK. It includes an extensive technical testing laboratory equipped for measuring the effects of antimicrobials on polymer properties. “Demonstrat- ing the efficacy of an antimicrobial product in laboratory conditions is relatively straightforward. Yet when that product is placed on the market and continuously exposed to UV and the elements for 10 years, or repeatedly scrubbed with strong cleaning chemicals; not a huge amount of test data is available,” the company claims.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.troycorp.com �
www.lanxess.com �
www.lonza.com �
www.addmaster.co.uk �
www.microban.com �
www.gelest.com �
www.life-materials.com �
www.velox.com �
www.parxplastics.com �
www.americhem.com �
www.steritouch.com
www.compoundingworld.com
PHOTO: LIFESAVER
PHOTO: THINKSTOCK
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