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首页> 外文期刊>Journal of Applied Polymer Science >Effects of butyl acrylate modified polypropylene on structural and thermal properties of foamed polypropylene
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Effects of butyl acrylate modified polypropylene on structural and thermal properties of foamed polypropylene

机译：丙烯酸丁酯改性聚丙烯对发泡聚丙烯结构和热性能的影响

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摘要

In this work, the melt strength of PP matrix was reinforced by crosslinking-modified PP (CM-PP) which was yielded by peroxide-initiated crosslinking of linear PP with butyl acrylate (BA). The nano-silica aerogel (nano-SiO2) worked as a nucleating agent for foaming. The effects of CM-PP with the various contents of BA on the foaming behavior and thermal property of PP were studied by measurements of density, thermal conductivity, Vicat softening temperature and SEM. The results showed that the foamed PP got the best properties when the crosslinking PP modified with the weight ratio of butyl acrylate was 10 wt %. The density of the obtained foamed PP with uniform closed cells was as low as 0.23 g/cm(3), the thermal conductivity was 0.044 W/(m K), and the Vicat softening temperature was 120 degrees C. (C) 2016 Wiley Periodicals, Inc.
机译：在这项工作中，通过交联改性的PP（CM-PP）增强了PP基体的熔体强度，该交联改性的PP是由过氧化物引发的线性PP与丙烯酸丁酯（BA）的交联产生的。纳米二氧化硅气凝胶（nano-SiO2）作为起泡剂。通过测量密度，导热系数，维卡软化温度和SEM，研究了BA中不同含量的CM-PP对PP发泡行为和热性能的影响。结果表明，当用丙烯酸丁酯的重量比改性的交联PP为10 wt％时，发泡PP具有最佳性能。所获得的具有均匀闭孔的发泡PP的密度低至0.23 g / cm（3），导热系数为0.044 W /（m K），维卡软化温度为120摄氏度。（C）2016 Wiley期刊公司

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