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首页> 外文期刊>Journal of Applied Polymer Science >Effect of the elastomer type on the microstructure and mechanical properties of polypropylene
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Effect of the elastomer type on the microstructure and mechanical properties of polypropylene

机译：弹性体类型对聚丙烯微观结构和力学性能的影响

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In this study, the effects of the elastomer type-ethylene-propylene-diene monomer (EPDM), three kinds of ethylene vinyl acetate (EVA 9, EVA 18, and EVA 28, where the number is the vinyl acetate concentration), and styrene-butadiene-styrene-and content on the microstructure and mechanical and thermal properties of isotactic polypropylene (i-PP) blends were investigated. Five different elastomer concentrations (3, 6, 9,12, and 15 wt %) were added to i-PP to produce polypropylene/elastomer blends. The yield and tensile strengths, elastic modulus, impact strength, hardness, melt flow index (MFI), and structural properties of the blends were investigated. The tensile and yield strengths, elastic modulus, and hardness decreased gradually, whereas the impact strength and MFI increased as the elastomer content increased. As a result, with respect to the impact strength, the most effective elastomers were EPDM with 15 wt % and EVA 28 with 15 wt % for higher impact strength values. (c) 2005 Wiley Periodicals, Inc.
机译：在这项研究中，弹性体类型的乙烯-丙烯-二烯单体（EPDM），三种乙烯乙酸乙烯酯（EVA 9，EVA 18和EVA 28，其中数字为乙酸乙烯酯浓度）和苯乙烯的影响-丁二烯-苯乙烯-和等规聚丙烯（i-PP）共混物的微观结构以及机械和热性能的含量进行了研究。将五种不同的弹性体浓度（3、6、9、12和15 wt％）添加到i-PP中，以生产聚丙烯/弹性体混合物。研究了共混物的屈服强度和拉伸强度，弹性模量，冲击强度，硬度，熔体流动指数（MFI）和结构性能。拉伸强度和屈服强度，弹性模量和硬度逐渐降低，而冲击强度和MFI随着弹性体含量的增加而增加。结果，关于冲击强度，对于更高的冲击强度值，最有效的弹性体是具有15wt％的EPDM和具有15wt％的EVA 28。 （c）2005年Wiley Periodicals，Inc.

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