Abstract
AbstractThe study reveals the dynamic impact damage resistance and energy absorption of oxygen/argon/nitrogen multiple plasma modified ultra‐high molecular weight polyethylene (UHMWPE) fiber reinforced composites. The interface bonding properties and impact resistance of the composite were studied by microsphere debonding test, low‐velocity and high‐velocity impact test. The modified parameters are optimized based on quadratic polynomial equation. The impact resistance of the composite was evaluated from the aspects of ballistic limit velocity, failure mode and energy dissipation mechanism. The results showed that compared with untreated composites, the depth of dents and damage area of multiple plasma modified composites were reduced by 43.53% and 11.73%, respectively. The energy absorption and limit velocity of high‐velocity impact were increased by 14.64% and 25.58%, respectively. The modified composites formed an energy dissipation mechanism dominated by fiber breakage. The impact damage resistance and energy absorption of UHMWPE fiber reinforced composites were enhanced with multiple plasma modification.Highlights Multiple plasma modification enhance synergistic energy absorption of composites. The optimum treatment parameters of composites plasma modification were analyzed. Interface bonding properties were evaluated from microscopic perspective.
Published Version
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