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EVM/PLA共混物阻尼热稳定性研究

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  • Key Words:EVM/PLA;;抗氧剂1010;;多元醇;;阻尼性能;;热空气老化

  • Abstract:使用动态粘弹谱仪(DMA)考察了在不同热空气老化条件下,乙烯醋酸乙烯酯(EVM)/聚乳酸(PLA)共混物、受阻酚抗氧剂1010和多元醇杂化共混物的阻尼热稳定性。结果表明,在50℃老化条件下,EVM/PLA质量比为80/20的共混物阻尼性能提高;而在90℃老化条件下,共混物阻尼性能下降;不同热空气老化后,15份受阻酚(抗氧剂1010)杂化EVM/PLA(质量比为80/20)共混物的有效阻尼温域稳定在100℃左右,是比较理想的阻尼体系;在50℃老化条件下,20份多元醇杂化EVM/PLA(质量比为80/20)共混物有效阻尼温域由102.5℃降至90.4℃,其在90℃老化条件下的有效阻尼温域降至78.7℃。

  • Volume:v.36;No.213

  • Issue:03

  • Translation or Not:no

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