Effects of decabromodiphenyl ethane flame retardant on the combustion behavior and physical‐mechanical properties of chloroprene rubber: Experimental and molecular dynamic simulation

Abstract

Herein, a molecular dynamics simulation method was used to predict the compatibility of chloroprene rubber (CR) and decabromodiphenyl ethane (DBDPE) and to investigate the mechanical properties of CR-based composites. The limiting oxygen index and cone calorimeter measurement values indicated that the addition of DBDPE was beneficial for reducing the peak heat release rate during combustion and facilitating the formation of compact and strong char layers for carbon black-filled CR composites, resulting in efficient reduction of flammability and fire risk. Incorporation of DBDPE obviously delayed the dehydrochlorination of the CR matrix. Moreover, adding 50 phr DBDPE had little effect on the tensile strength and elongation at the break, and increased the modulus at 100% elongation by 64.3% in contrast to CR without DBDPE. However, the cold properties of CR vulcanizates decreased slightly with an increase in the DBDPE content.

Nylon 66 fibers coated with environmentally friendly dopamine‐modified adhesives and their interfacial adhesion with neoprene rubber

“…It contains an unsaturated polymer backbone and a large amount of Polarized chlorine 1 . Owing to the reduced activity of double bonds and α‐methylene on the macromolecular chain, CR is generally crosslinked by metal oxides, 2,3 which is different from the crosslinking mechanism of other diene rubbers. CR offers a unique combination of mechanical properties and dynamic deformation and has been widely used in wire and cable sheathing, air springs, oil‐resistant rubber products, heat‐resistant conveyor belts, road joint sealants, bridge bearings, flame‐retardant rubber products, and adhesives 4–7 .…”