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Moringa oleifera oil influence on biodegradation behaviour of polymers
Environmental Technology ( IF 2.2 ) Pub Date : 2018-10-11 , DOI: 10.1080/09593330.2018.1529201
Cristiane M Finzi-Quintão 1 , Tânia Márcia Sacramento Melo 2 , Ana Cláudia Bernardes-Silva 3 , Kátia Monteiro Novack 2, 4
Affiliation  

ABSTRACT Vegetable oils (VOs) can be used as plasticizers or as biodegrading additives for commercial polymers. According to the literature, the use of concentrations higher than 5% of oils added to polymers or their mixtures indicated loss of mechanical properties on the final product. However, VOs can be used as a compatibilizer for the mixture of synthetic polymers with biopolymers (PM) under concentrations higher than 5%. Moringa oleifera oil (MO) was used as a compatibilizer to PM mixtures using oil concentrations higher than 5%, 10% and 15% in mass. PMs were analysed at first based on mechanical properties which indicated a better concentration at 15% of MO. This article presents a study of MO influence on biodegradation behaviour of PM, which was composed of low-density polyethylene obtained from food bags and biopolymers (PB) obtained in market plastic bags. PM doped with different concentrations of MO was submitted to studies of mechanical, chemical, morphological and thermal properties and their biodegradation behaviour was evaluated. The concentration of 15% of MO increased the thermal resistance of PM, improved the biodegradation behaviour according to controlled and free tests and reduced its stiffness without a loss of important mechanical properties. The results of this work showed that MO influenced positively the biodegradation of the PM mixture by improving 30% of the degrading speed. GRAPHICAL ABSTRACT

中文翻译:

辣木油对聚合物生物降解行为的影响

摘要 植物油 (VO) 可用作增塑剂或商业聚合物的生物降解添加剂。根据文献,使用浓度高于 5% 的油添加到聚合物或其混合物中表明最终产品会失去机械性能。然而,在浓度高于 5% 的情况下,VO 可用作合成聚合物与生物聚合物 (PM) 的混合物的增容剂。辣木油 (MO) 用作 PM 混合物的增容剂,使用的油浓度高于质量的 5%、10% 和 15%。首先根据机械性能对 PM 进行分析,表明在 15% 的 MO 下浓度更好。本文介绍了 MO 对 PM 生物降解行为的影响的研究,它由从食品袋中获得的低密度聚乙烯和从市场塑料袋中获得的生物聚合物(PB)组成。对掺杂不同浓度 MO 的 PM 进行了机械、化学、形态和热特性研究,并评估了它们的生物降解行为。根据受控和自由试验,15% 的 MO 浓度增加了 PM 的热阻,改善了生物降解行为,并在不损失重要机械性能的情况下降低了其刚度。这项工作的结果表明,MO 通过提高 30% 的降解速度对 PM 混合物的生物降解产生积极影响。图形概要 对形态和热特性及其生物降解行为进行了评估。根据受控和自由试验,15% 的 MO 浓度增加了 PM 的热阻,改善了生物降解行为,并在不损失重要机械性能的情况下降低了其刚度。这项工作的结果表明,MO 通过提高 30% 的降解速度对 PM 混合物的生物降解产生积极影响。图形概要 对形态和热特性及其生物降解行为进行了评估。根据受控和自由试验,15% 的 MO 浓度增加了 PM 的热阻,改善了生物降解行为,并在不损失重要机械性能的情况下降低了其刚度。这项工作的结果表明,MO 通过提高 30% 的降解速度对 PM 混合物的生物降解产生积极影响。图形概要 这项工作的结果表明,MO 通过提高 30% 的降解速度对 PM 混合物的生物降解产生积极影响。图形概要 这项工作的结果表明,MO 通过提高 30% 的降解速度对 PM 混合物的生物降解产生积极影响。图形概要
更新日期:2018-10-11
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