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The influence of rotational molding cycle on the morphology and physical properties of FR‐LLDPE

The major objective of the study was to develop formulations having maximum impact strength while maintaining a UL‐94 V‐0 flammability rating. Excellent impact strength and flammability performance were achieved in the modified FR‐LLDPE system at 20% impact modifier (ethylene copolymer), 22% flame retardant, 5.5% antimony trioxide, 0.25% PTFE, and 0.5% functionalized silicone additive. This paper further explores the performance of the aforesaid optimized FR‐LLDPE composition when rotomolded at various cycle times. Attempts were made to probe the influence of morphological characteristics on the physical properties of the rotomolded parts.