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首页> 外文期刊>Open Journal of Polymer Chemistry >Natural Rubber/Fluoro Elastomer Blends: Effect of Third Component on Cure Characteristics, Morphology,Mechanical Properties, and Automotive Fuel Swelling
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Natural Rubber/Fluoro Elastomer Blends: Effect of Third Component on Cure Characteristics, Morphology,Mechanical Properties, and Automotive Fuel Swelling

机译：天然橡胶/氟弹性体共混物：第三组分对固化特性，形态，机械性能和汽车燃料膨胀的影响

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The natural rubber (NR) was mixed with fluoro elastomer (FKM), due to the difference of polarity in NR and FKM made this blend incompatible so the third component was used. NR/FKM blended with the blend ratio of 70/30 was prepared by using a two-roll mill and vulcanization in a compression mold at 180℃ using peroxide as a curative agent. Epoxidized natural rubber (ENR) or polyisoprene-graft-maleic acid monomethyl ester (PI-ME) was used as a third component. The curing characteristics, morphology, mechanical properties, and automotive fuel swelling were investigated. The results indicated that the scorch time and cure time of the blend rubbers were longer as adding ENR or PI-ME. Both mechanical properties and automotive fuel resistance of the blend rubbers were found to increase with adding ENR in rubber blend. Conversely for adding PI-ME, automotive fuel resistance of the blend rubbers was found to decrease progressively with increasing PI-ME content.
机译：将天然橡胶（NR）与含氟弹性体（FKM）混合，由于NR和FKM中的极性不同，使这种共混物不相容，因此使用了第三种组分。采用两辊磨机，以过氧化物为固化剂，在压模中于180℃硫化，制得共混比为70/30的NR / FKM。环氧天然橡胶（ENR）或聚异戊二烯接枝-马来酸单甲酯（PI-ME）被用作第三组分。研究了固化特性，形态，机械性能和汽车燃料溶胀。结果表明，随着ENR或PI-ME的加入，共混橡胶的焦烧时间和硫化时间更长。发现在橡胶共混物中添加ENR会提高共混橡胶的机械性能和汽车耐燃性。相反，对于添加PI-ME，发现共混橡胶的汽车耐燃性随着PI-ME含量的增加而逐渐降低。

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