EXHIBITION REVIEW | COMPOUNDING WORLD EXPO
Right: The Buss Compeo co-kneader was on display for only the second time in Europe
nanotubes (MWCNTs) and carbon nano-structures (CNS) as well as graphenes. These new materials are already showing performance benefits in aerospace compounds and are expected to find broader application in automotive. Cabot’s main focus for the new
materials is in EMI shielding and electri- cally conductive applications, said Cabot Performance Materials Business Development Manager Jean-Michel Poncelet. “This is an extension of our capability in conductive addi tives,” he said. “We are known in the market as a carbon black- based compounder but we are moving beyond that. We already have graphene but CNS and MWCNTs is a further step into advanced carbons.” Poncelet said the CNS additives are basically multi-wall carbon nanotubes (MWCNTs) arranged in a cross-linked network. Like conventional MWCNTs, they can improve the electrical conduc- tivity of polymer compounds either as a sole additive or by bridging the gap between carbon black particles. Both nano-additives can lower the percolation threshold (the addition level required to achieve conductivity). However, he said the 3D structure makes the CNS additives more effective in this respect. The intention is to develop a range of materials within the Cabot Specialty Materials business that use combinations of carbon, MWCNTs, CNS and perhaps graphene too, according to Poncelet. “It’s finding the sweet spot between price and perfor- mance,” he said. Cabot’s focus continues to be the functionalisa-
Below: CeNTI’s Chromiumlike technology allows plastics to simulate the feel of metal
tion of plastics, in particular to enhance conductiv- ity. The company will showcase some of the performance results in polymeric materials at the Fakuma show in Germany in October. Portuguese nanomaterials technology institute CeNTI and mouldmaker Simoldes showed the
results of the Chromiumlike project, which uses carbon-based nanopar- ticles to modify the thermal and electrical conductiv- ity of plastic compounds to allow them to simulate the appearance and “feel” of chromed metal. The new compounds simulate the cool touch of metal and are being targeted at automotive interior trim applications such as door handles, where many car makers are becoming concerned over the environmental profile of chrome plating, according to CeNTI Functional Polymers & Coat- ings R&D Manager Bruna Moura. CeNTI also showed examples of some of its work in development of multi-layer piezoelectric fibres, which it sees having application in low cost strain monitoring systems for reinforced concrete. CeNTI claims to have one of only two lines in Europe capable of direct extrusion of such fibres. Twin-screw extruder manufacturer Changzhou Jwell Chemical Machinery said it is setting up a dedicated export company targeting Europe and North America. Bond Shan, Vice-President and Sales Director at the company (part of one of China’s Shanghai Jwell Machinery) said it has been working to grow its export sales in Russia, India, South Korea, Indonesia and countries in the Middle East. However, he said in Essen that executives at the company were surprised how many lines it was starting to sell in Europe and North America without specifically focusing on those markets. Changzhou Jwell is now in the process of
registering a new company, which will have a sales team led by Shan dedicated to export growth in the European and North American markets. It will start operating this year, he said. While the largest part of the group’s sales are in extrusion lines for pipe, profile, film and sheet, the company also makes twin-screw compounding extruders in Changzhou at a 100,000 m² facility opened in 2015. Coperion was highlighting its Involute screw and
kneading elements in Essen, which use a new cross section claimed to provide a significant increase in throughput when processing highly filled com-
36 COMPOUNDING WORLD | August 2018
www.compoundingworld.com
PHOTO: SHUTTERSTOCK
PHOTO: BUSS
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