首页> 外文期刊>Journal of Applied Polymer Science >Effects of blend ratio, crosslinking systems and fillers on the morphology, curing behavior, mechanical properties, and failure mode of acrylonitrile butadiene rubber and poly(ethylene-co-vinyl acetate) blends
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Effects of blend ratio, crosslinking systems and fillers on the morphology, curing behavior, mechanical properties, and failure mode of acrylonitrile butadiene rubber and poly(ethylene-co-vinyl acetate) blends

机译:丙烯腈丁二烯橡胶和聚(乙烯 - 乙烯酯)混合物对丙烯腈丁烯橡胶和聚(乙烯 - 乙烯基乙烯酯)的形态,交联系统和填料对形态,固化性能,力学性能和失效模式的影响

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摘要

Blends of acrylonitrile butadiene rubber (NBR) and poly(ethylene-co-vinyl acetate) (EVA), with varying proportions of the components, were vulcanized using different crosslinking systems, namely, sulfur (S), dicumyl peroxide (DCP), and a mixed system (S + DCP). Mechanical properties, such as stress-strain behavior, tensile strength, elongation at break, Young's modulus, tensile set, and tear strength, were studied. The mixed system exhibited better mechanical performance than other systems. The tensile and tear fracture surfaces were analyzed under the scanning electron microscope in order to understand the failure mechanism. The variation in properties was correlated with the morphology of the system. The effect of high-abrasion furnace black (HAF), semireinforcing furnace black (SRF), silica, and clay on the mechanical properties and failure mechanism of 50/50 blend of NBR-EVA (N50P) has also been studied. The Kraus equation has been applied to analyze the extent of polymer-filler interaction. Applicability of various theoretical models has been investigated to predict the properties of the blend systems.
机译:丙烯腈丁二烯橡胶(NBR)和聚(乙烯 - 二乙烯基乙烯酯)(EVA)的混合物,具有不同的组分的比例,使用不同的交联体系,即硫(S),过氧化物(DCP)和混合系统(S + DCP)。研究了力学性能,如应力 - 应变行为,抗拉强度,断裂伸长,杨氏模量,拉伸集和撕裂强度。混合系统表现出比其他系统更好的机械性能。在扫描电子显微镜下分析拉伸和撕裂裂缝表面,以了解故障机制。性质的变化与系统的形态相关。还研究了高磨料炉黑(HAF),半纤维炉黑(SRF),二氧化硅和粘土对NBR-EVA(N50P)的50/50混合物的力学性能和失效机理的影响。已应用Kraus方程来分析聚合物填料相互作用的程度。已经研究了各种理论模型的适用性预测混合系统的性质。

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