MATERIALS | ELECTRICAL AND ELECTRONIC
and industrial automation. These new materials can help manufacturers to meet consumer expectations such as higher capacity, faster data transfer speeds, and coverage in high density areas. “Telecom equipment manufacturers all over the world are readying themselves for the explosion of 5G,” says Flight Xu, General Manager, Specialty Engineered Materials Asia for PolyOne. “We see 5G deployment as a tipping point in which seamless connectivity will become an expectation not only for mobile users, but for industry as well. We’re confident that our innova- tive material solutions and product development support will enable telecom manufacturers to make that expectation a reality.” RTP Company has expanded its line of conduc- tive compounds to include new CCX conductive masterbatches, for safe, productive and reliable solutions for environments that are prone to electrostatic discharge (ESD). The masterbatches are available in a variety of resin systems, and can be formulated with four distinct additive technolo- gies - stainless steel fibre, carbon nanotubes, carbon black and PermaStat dissipative polymer technology. As shown in Figure 1, each additive technology provides different benefits, depending on the needs and requirements of the application. Stainless steel fibre CCX masterbatches are
created using the company’s long fibre manufac- turing process and allow for the highest level of conductivity, providing EMI shielding for sensitive electronics, coloured parts and components, or even FDA compliant applications. They are available in most resin systems and have similar shrinkage and mechanical performance to the unfilled base resin, making them well-suited to injection moulding and compatible with existing moulds and tooling. Carbon nanotube CCX masterbatches can be
Left: Polyplastics has introduced a number of resin products for specifically penetrating the electric vehicle market
Healthcare devices like this blood pressure monitor can be manufactured from RTP Company’s CCX masterbatches for static dissipative performance and full colourability, offering both form and function to the end product
used in high purity applications and also have virtually no effect on shrinkage or mechanical properties compared with the unfilled base resin. Carbon nanotubes, or CNTs, are hollow structures consisting of graphene cylinders of carbon atoms capped at both ends; when incorporated into a thermoplastic, they provide highly uniform ESD protection and/or electrical conductivity at a very low loading level. Carbon black CCX masterbatch- es have similar isotropic shrinkage, strength, and stiffness to the unfilled base resin, but are an economical way to introduce versatile, high performance conductivity for a plastic part. Finally, the company says that PermaStat CCX masterbatches are formulated for applications that require permanent antistatic or static dissipative performance. These masterbatches can be used in most resins with processing temperatures up to 270°C (520°F). They provide uniform dissipative performance, full colourability, and even transpar- ency in some resins, while retaining or even enhanc- ing the impact performance of the base resin. Additionally, they are well suited to intrinsic safety applications and can meet the surface resistance requirements of the ATEX directive. They are compatible with injection moulding or extrusion equipment and require minimal processing adjust- ments when incorporated into existing processes. Polyplastics has introduced a number of resin
products for specifically penetrating the electric vehicle market as a superior alternative to metals. The company’s Duranex PBT and Durafide PPS materials are designed for engine peripheral parts, such as power control units (PCUs) where they deliver high insulating properties and lower water absorption while meeting harsh operating condi- tions of -40°C to 150°C and up to 95% relative humidity. The company says that Duranex PBT CG7030 provides lower water absorption and high tracking
24 INJECTION WORLD | October 2019
www.injectionworld.com
PHOTO: POLYPLASTICS
PHOTO: RTP
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