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首页> 外文期刊>Journal of Applied Polymer Science >Effect of dynamic vulcanization on properties and morphology of nylon/SAN/NBR blends: A new compatibilization method of nylon/ABS blends
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Effect of dynamic vulcanization on properties and morphology of nylon/SAN/NBR blends: A new compatibilization method of nylon/ABS blends

机译：动态硫化对尼龙/ SAN / NBR共混物性能和形态的影响：尼龙/ ABS共混物的新相容方法

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摘要

Dynamically vulcanized blends of nylon, styrene-acrylonitrile copolymer (SAN), and nitrile-butadiene rubber (NBR) were examined for mechanical properties, Shore D hardness, Vicat softening temperature, impact process, and phase morphology. The effect of a curing system such as phenolic formaldehyde resins (PF), dicumylperoxide (DCP), and a sulfur system on the mechanical properties of the nylon/SAN/NBR blends was studied, and dynamic vulcanization with a PF system was found to lead to outstanding toughness of the blends. The effect of PF content on the mechanical properties, Shore D hardness, and heat resistance of the nylon/SAN/NBR blends was also investigated. With increasing PF content the notched-impact strength and Vicat softening temperature (VST) of the nylon/SAN/NBR (50/25/25) blends evidently improved, but tensile strength and Shore D hardness of the blends changed slightly. It can be concluded that the nylon/SAN/NBR (50/ 25/25) blends dynamically vulcanized by high-content PF can attain excellent comprehensive mechanical properties, especially supertoughness, at room temperature. SEM was used to investigate the effect of dynamic vulcanization on disperse-phase particle size, particle size distribution, and phase morphology. It was obvious that disperse-phase particle size decreased with an increasing PF content. Thermal behavior and miscibility of dynamically vulcanized nylon/ SAN/NBR with PF were investigated by DMTA. (C) 2003 Wiley Periodicals, Inc. [References: 17]
机译：检查了尼龙，苯乙烯-丙烯腈共聚物（SAN）和丁腈橡胶（NBR）的动态硫化共混物的机械性能，肖氏D硬度，维卡软化温度，冲击过程和相形态。研究了硫化体系（如酚醛树脂（PF），二枯基过氧化物（DCP）和硫磺体系）对尼龙/ SAN / NBR共混物机械性能的影响，发现使用PF体系进行动态硫化会导致共混物的出色韧性。还研究了PF含量对尼龙/ SAN / NBR共混物的机械性能，肖氏D硬度和耐热性的影响。随着PF含量的增加，尼龙/ SAN / NBR（50/25/25）共混物的缺口冲击强度和维卡软化温度（VST）明显改善，但共混物的拉伸强度和肖氏D硬度略有变化。可以得出结论，在室温下，通过高含量PF动态硫化的尼龙/ SAN / NBR（50 / 25/25）共混物可以获得出色的综合机械性能，尤其是超韧性。 SEM用于研究动态硫化对分散相粒度，粒度分布和相形态的影响。显然，随着PF含量的增加，分散相的粒径减小。 DMTA研究了动态硫化尼龙/ SAN / NBR与PF的热行为和混溶性。 （C）2003 Wiley Periodicals，Inc. [参考：17]

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