Materials: New Self-Bonding LSR for Overmolding onto PC, PBT
At the K 2019 show in in Düsseldorf Oct. 16-23, Momentive Performance Materials will introduce its new self-bonding Silopren LSR 27x9 family of liquid silicone rubbers for overmolding onto PC, PBT and copolyesters. Available in 30, 40 and 50 Shore A hardnesses, the new family’s primerless adhesion will be demonstrated in overmolding onto high-heat PC for a “butterfly” cell-phone holder that plugs into a car dashboard.
Lightweight, strong, and low-cost, natural fibers are poised to replace glass and mineral fillers in numerous interior parts.
While the nylon 66 tightness may not prove long-lasting, resin suppliers, compounders, and distributors have mobilized to offer processors an array of ‘replacement’ materials.
Demand for more robust plastics is creating new opportunities for radiation-crosslinked nylons, including nylon 6 and 66, which can serve as cost-effective alternatives to higher-cost, high-heat thermoplastics. Crosslinked nylons have higher heat resistance than their standard counterparts, along with better physical properties and abrasion resistance. Adapted from a paper presented at SPE ANTEC 2012.