Fire retardants | additives feature
weight designs in the E&E industry. l Environmentally responsible solutions: Increas- ingly, OEMs are specifying environmentally responsible materials as they seek to meet their own sustainability objectives. Fallon explains: “We have continued to expand our portfolio of technolo- gies to enable our customers to develop applica- tions, while meeting their sustainability criteria”. Its portfolio includes FR materials that are halogen-free and contain post-consumer recycled materials. Fallon offers two examples of new developments underway in this arena. Noryl RN0401 PPE resin contains 20% post-consumer recycled (PCR) materials and meets the UL94-VO standard at 2.0 mm. It is said to be an excellent candidate for a variety of electronic housings, components and power adaptors. This grade is part of a planned family of Noryl PCR resins aimed at electrical/electronics industry. The other new materials highlighted by Fallon are
Cycoloy PC/ABS resins containing open-loop PCR PC from water bottles, CDs and other sources. The RCM6134 grade contains 35% PCR and meets the UL94 V0 standard at 1.0 mm and has a high stiffness of 3.1 GPa for thin-wall enclosures. Another option is RY6214 which also contains 35% PCR and meets UL94 V0 at 1.5 mm. Both may be suitable for laptop and consumer electronic housings. Up to four additional grades will soon be available offering a variety of combinations of stiffness, flame rating and viscosity-also aimed at consumer electronics. l Desire for greater design freedom: This is driving a corresponding requirement for new FR materials, particularly in LED lighting, consumer electronics and healthcare. For example, in healthcare there are growing demands for portable products that are lighter in weight, smaller and with greater aesthetic appeal. Fallon says “Each of these trends dictates a need for materials that are strong, processable, and resistant to
Sabic says that the move towards compact,
light-weight medical devices is creating new challenges and
opportunities for flame retardant plastics
flame and chemicals. Particularly in the case of smaller and lighter-weight medical devices, thin-wall design, with a critical requirement of flame retardancy, is driving the development of improved FR materials.” Examples include Lexan EXL resin, a PC copolymer
formulation, that offers superior impact and low- temperature ductility compared to standard PC grades. This resin family is intended for flame retardant conformance with voluntary environmental labels such as Blue Angel and TCO99. There are now four grades of FR Lexan EXL PC resin with PCR content from 25% to 80%. They are said to offer carbon footprint reductions, in terms of cradle-to-cradle greenhouse gas emissions, ranging from 20% to 64% compared to traditional Lexan EXL 1414 resin and a lower carbon footprint than non- PCR containing products, traditional PC and PC/ABS. Sabic Innovative Plastics is also targeting applica- tions in LED lighting with its Lexan FR resins and LNP Konduit compounds. These resins meet UL94 V0 standard at gauges as thin as 1.5 mm with halogen-free flame retardancy. Lexan LUX PC grades were also developed this year to meet the evolving requirements of next-generation LED lighting. As bulb covers become
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