Impact of antioxidant purity on Arvin degradation products in polypropylene

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability Pub Date : 2025-05-19 DOI:10.1016/j.polymdegradstab.2025.111429

Jérôme Vachon, Patrick Voets

引用次数: 0

Abstract

Migration tests in ethanol (10 days, 60 °C) were performed on polypropylene injection molded plaques to study the influence of extrusion temperature and purity of antioxidant AO1010 on the presence of Arvin degradation products. Five AO1010 from five different suppliers showing different initial amount of Arvin 9 and 10 were used. A good correlation of the initial amount of Arvin 9 present in AO1010 and the amount migrated in ethanol was observed. For Arvin 8, not only Arvin 10 can be a precursor, but potentially also Arvin 9 as indicated by the good correlation between the sum of Arvin 9 and 10 initially present in the AO with the amount of Arvin 8 and 9 detected in ethanol. This study thus indicates that the most important factor determining the Arvin degradation products content is the purity of AO1010 in terms of residual amount of Arvin 9 and Arvin 10 in this antioxidant, while the effect of extrusion temperature was not seen.

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抗氧化剂纯度对聚丙烯中Arvin降解产物的影响

在乙醇（10天，60°C）中对聚丙烯注塑成型斑块进行迁移试验，研究挤出温度和抗氧化剂AO1010纯度对Arvin降解产物存在的影响。使用了来自5个不同供应商的5个AO1010，显示了不同的Arvin 9和10的初始数量。观察到AO1010中Arvin - 9的初始量与乙醇中的迁移量具有良好的相关性。对于Arvin 8，不仅Arvin 10可以是前体，而且Arvin 9也可能是前体，这是由AO中最初存在的Arvin 9和10的总和与乙醇中检测到的Arvin 8和9的量之间的良好相关性所表明的。本研究表明，决定Arvin降解产物含量的最重要因素是AO1010的纯度，即该抗氧化剂中Arvin 9和Arvin 10的残留量，而挤出温度的影响并不明显。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polymer Degradation and Stability 化学-高分子科学

CiteScore

10.10

自引率

10.20%

发文量

325

审稿时长

23 days

期刊介绍： Polymer Degradation and Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology. Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials when oxygen and sunlight are the most important degradative agencies. In more specialised applications, degradation may be induced by high energy radiation, ozone, atmospheric pollutants, mechanical stress, biological action, hydrolysis and many other influences. The mechanisms of these reactions and stabilisation processes must be understood if the technology and application of polymers are to continue to advance. The reporting of investigations of this kind is therefore a major function of this journal. However there are also new developments in polymer technology in which degradation processes find positive applications. For example, photodegradable plastics are now available, the recycling of polymeric products will become increasingly important, degradation and combustion studies are involved in the definition of the fire hazards which are associated with polymeric materials and the microelectronics industry is vitally dependent upon polymer degradation in the manufacture of its circuitry. Polymer properties may also be improved by processes like curing and grafting, the chemistry of which can be closely related to that which causes physical deterioration in other circumstances.