ZETAFIN: COPOLYMER COMPOSITIONS FOR THE WIRE AND CABLE INDUSTRY,
DOW CHEMICAL CO FREEPORT TEX TEXAS DIV
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The Zetafin copolymers can be peroxide crosslinked either filled or natural, and, depending on the ethyl acrylate content and amount of filler, can range from stiff and boardy to very soft and rubbery compositions. Unlike polyethylene they can be produced with good physical properties even though not crosslinked and unlike EP rubbers they do not require fillers for reinforcement. The compositions reported here were produced using ethyl acrylate copolymers of different monomer contents and ranged in melt index from 0.3 to 70. All of the compounds were filled using carbon black of two particle sizes, at three different loadings. All percentages used are based on weight of total compound. Zetafin copolymer compounds are suitable for the following semiconducting applications Conductor and core shielding in high voltage cables Continuous grounding of power and communications cables Screen for non-microphonic cables and Electrostatic screen for communications cables.
- Electrical and Electronic Equipment