等规聚丙烯与脂肪族聚酰胺6/66复合材料的高温热氧化研究

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Russian Physics Journal Pub Date : 2025-02-12 DOI:10.1007/s11182-025-03382-7

N. V. Vorontsov, A. L. Margolin, A. A. Popov

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引用次数: 0

摘要

采用热重法研究了聚丙烯（PP）、混合聚酰胺PA6/66 （PA）及其混合物在PA含量为10和40 wt时的降解情况。%在温度范围从30到700 °C的空气中。发现PA对PP的降解有明显的抑制作用。在聚酰胺的存在下，混合物的最高分解温度提高了50° °C以上。这种作用与已知抗氧化剂的抑制作用相当。提出了PA相与氧化产物和PP自由基反应的抑制作用机制。

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High-temperature thermal oxidation of composites based on isotactic polypropylene with aliphatic polyamide 6/66

The thermogravimetric method is used to study the degradation of polypropylene (PP), mixed polyamide PA6/66 (PA), and their mixtures with PA contents of 10 and 40 wt.% in the temperature range from 30 to 700 °C in air. A significant inhibitory effect of PA on PP degradation is discovered. The maximum decomposition temperatures of mixtures in the presence of polyamide increase by more than 50 °C. This effect is comparable to the inhibitory effect of known antioxidants. A mechanism of inhibitory action is proposed as a result of the reaction of the PA phase with the oxidation products and the PP radicals.

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来源期刊

Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

208

审稿时长

3-6 weeks

期刊介绍： Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.