Material cost reduction via new chemical foaming solution

BETHEL, CONN.–PolyOne Colorant Chromatics has introduced a new chemical foaming solution for fluoropolymer wire insulation that aimed at decreasing part density, while improving stability and ensuring efficiency in the production process. The new additive also preserves electrical properties even at reduced insulation thickness to enable savings in raw material consumption through a consistent closed cell structure.

Even if its difficult to minimize the tradeoffs between thermal stability, foaming control and high processing temperatures when applying wire insulation, the new technology balances all three performance requirements and also boosts productivity without the need for additional equipment investment, according to Barto du Plessis, general manager at PolyOne Colorant Chromatics.

With this advanced additive, wire manufacturers can benefit from foaming performance as maximum gas generation results in no premature foaming for greater process control. They also achieve enhanced dispersion of active foaming ingredients for a consistent cell structure of 200 micron or less – insulation thickness and density are reduced without adversely effecting electrical, chemical or thermal properties

Moreover, thermal stability is achieved through excellent heat resistance from 340 - 380°C to support effective homogenisation of the foaming agent with high-performance polymers

These new chemical foaming solutions for fluoropolymer wire insulation are suitable for FEP, PFA and MFA polymers and are now available globally.