Ticona Engineering Polymers has developed new resin grades that address concerns about halogen content.
Two new Riteflex thermoplastic polyester elastomer grades in its XFR series of flame-retardant materials are halogen free. The grades are designed for applications where elasticity is balanced with enhanced toughness.
Riteflex XFR 440 has Shore D hardness of 40 while XFR 655 has Shore D hardness of 55. Key properties of the two materials include flame retardance, comparative tracking index of more than 600 volts, good processability and high tensile elongation.
Ticona also says its new grade of Fortron polyphenylene sulfide has reduced levels of chlorine in its formulation. This will help electrical and electronic component manufacturers to design and make products that comply with anticipated halogen-free industry standards.
Fortron PPS 1140A66 combines improved polymerization and compound technologies to reduce chlorine concentrations to below 900 parts per million, the Florence, Ky., company claims. The reduction is accomplished without a loss of the mechanical properties that make PPS well-suited to connectors, switches and other electrical components. As well, the material meets the UL94 V-0 flammability rating without the addition of flame retardants, according to Ticona.
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