Investigation of artificial ageing of PVC stabilized with epoxidized sunflower oil as biobased derivative

Current Applied Polymer Science Pub Date : 2021-08-20 DOI:10.2174/2452271604666210820093434

N. Gallouze, Naima Belhaneche-Bensemrab, S. Commereuc, V. Verney

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Abstract

The objective of this work is the study of artificial ageing of semi-rigid and plasticized polyvinyl chloride (PVC) stabilized with epoxidized sunflower oil (ESO) as biobased derivative in combination with zinc and calcium stearates. For comparison, a formulation of PVC plasticized and stabilized with epoxidized soya bean oil (ESBO) was considered. Artificial ageing was carried out during the 304 hours. Samples were taken off after: 48, 146, 234 and 304 hours and then characterized. The evolution of density, glass transition temperature and morphology, was followed as a function of the time. The structural modifications of polymer were analyzed by Fourier transform infrared spectroscopy in attenuated total reflectance and transmission modes. The results showed a little decrease of density, a considerable increase of the glass transition temperatures values and a change of morphology. All changes in the properties of PVC relate to formation of new chemical structures. Globally, it was found that ESO exhibited similar performances to those of ESBO

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以环氧葵花籽油为生物基衍生物稳定聚氯乙烯的人工老化研究

本研究的目的是研究半刚性和增塑型聚氯乙烯(PVC)的人工老化，该聚氯乙烯是由环氧化葵花籽油(ESO)作为生物基衍生物与锌和硬脂酸钙结合稳定的。为了比较，考虑了用环氧大豆油(ESBO)增塑和稳定PVC的配方。在304小时内进行了人工老化。分别在48、146、234和304小时后取下样品进行表征。密度、玻璃化转变温度和形貌随时间的变化而变化。利用傅里叶变换红外光谱分析了聚合物在衰减全反射和透射模式下的结构修饰。结果表明:密度略有下降，玻璃化转变温度值明显升高，形貌发生变化。PVC性能的一切变化都与新化学结构的形成有关。在全球范围内，ESO与ESBO表现相似

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Current Applied Polymer Science

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