show preview | NPE 2015
More than 2,000 exhibitors are expected to
take part in this year’s show
wood-grain effect. For wood-plastic composite applica- tions such as decking, the company offers a line of polyolefin capstocks. Many capstocks available from Teknor are alloys of
PVC and other resins with weatherable polymers such as ASA. The company supplies them in pellet form, including pre-coloured compounds matched to customer require- ments. Typical applications include railing systems, window components, fencing, siding, and decking. In addition to an extensive laboratory for accelerated
weathering tests, Teknor does testing at multiple field locations, reflecting the variation of requirements posed by outdoor applications. “Outdoor building products present myriad combina-
tions of capstock requirements which we are prepared to address through custom formulation,” said John Macaluso, industry manager for building and construc- tion, in Teknor’s vinyl division. “The anticipated climate conditions, the vertical or horizontal orientation of the product in end-use, special physical properties like scratch or mar resistance, as well as cap thickness all come into consideration.” AGC Chemicals Americas will showcase its materi-
als expertise, from its position in the Fluoropolymers Technology pavilion. The company’s technical solutions team will present an array of products featuring Aflas fluoroelastomers and Fluon fluoropolymers, while its FluoroCompounds group will feature high performance custom compounding solutions. One featured product range is its Fluon filled PTFE
compounds, which provide high resistance to deforma- tion and creep, plus high thermal conductivity and wear performance compared to traditional PTFE resins. The materials are aimed at critical parts where mechanical strength, chemical resistance and lubricity are essential. Its Fluon melt processable compounds are based on
copolymer resins FEP, ETFE, PFA, PVDF, MFA or ECTFE, and are important materials for parts and
components used in automotive, industrial, aerospace, transit and appliance applications because of their physical toughness and high resistance to heat and chemicals. The company offers eight different types of melt processable compound. Fluon ETFE and low melt ETFE resins offer superior
resistance to heat and chemical attack. They also hold up in extreme weather conditions and last for years with negligible deterioration effects. Fluon PFA is similar to PTFE, and can be processed using a range of techniques. Finally, its Aflas fluoroelastomers can be used in demanding applications in sectors such as oil & gas, chemical processing and automotive. They have high resistance to heat, bases, many solvents, ozone and steam, and are engineered to thrive in harsh environ- ments, says the company.
Make it Quick KraussMaffei will present a number of its machinery technologies – including several under its Berstorff brand of interest to pipe and profile extruders. Among them is its QuickSwitch technology, an adjustable pipe
Pulverising plastics in the Startup Garage
The company with the oddest name at the show is Zzyzx Polymers – which, it insists, is pronounced ‘ziziks’. The company can be found in the Startup Garage zone of NPE, which highlights the work of small plastics-related companies. Zzyzx has commercialised a process
called solid state shear pulverisation (SSSP) – which was originally developed at Northwestern University in the US – to produce a range of ‘engineered materials’
36
from commodity polymers. Plastics and additives are fed through a
twin-screw extruder. Ordinarily, this would cause the plastic to melt. But SSSP chills the barrel to ensure that only mechanical force acts on the material inside. In this way, the constituents are converted into a fine powder. The force imparted on the polymers can cleave polymer bonds, causing effects such as chain scission, the creation of free radicals and the formation
PIPE & PROFILE EXTRUSION | January/February 2015
of block co-polymers. The company says that SSSP can
disperse additives far more effectively than traditional mixing techniques. This means that normally immiscible materi- als – such as PE and PP –can be compati- bilised.
It has used the technique to create a
grade of polypropylene (PP) filled with rice husks which, it says, has similar hardness to polycarbonate.
www.pipeandprofile.com
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