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首页> 外文期刊>Journal of Polymers and the Environment >Selected Fatty Acids Esters as Potential PHB-V Bioplasticizers: Effect on Mechanical Properties of the Polymer
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Selected Fatty Acids Esters as Potential PHB-V Bioplasticizers: Effect on Mechanical Properties of the Polymer

机译：选择的脂肪酸酯作为潜在的PHB-V生物塑料剂：对聚合物的力学性能影响

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摘要

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB-V) has not been used for demanding technical applications yet due to its limited mechanical properties, particularly its high brittleness. An appropriate route to overcome these limitations is the implementation of plasticizers in the PHB-V matrix via compounding. In this paper the use of different types of fatty acids esters as PHB-V plasticizers were investigated. The study describes how the difference in the fatty acid esters structure (mainly fatty acid hydrocarbon chain length) affects their plasticizing effect and thus the PHB-V ductility performance. The best impact properties of PHB-V compounds were obtained for oleic acid methyl ester, palmitic acid methyl ester or lauric acid ethylene glycol monoester. The increase of notched impact strength from 1.4 (for neat polymer) to 4.0-4.1 kJ/m(2)was observed. At the same time stiffness and strength of the polymer decreased but remain on a level sufficient for technical applications. Additional drawback of PHB-V materials is increasing the brittleness over time. Moreover this study shows that the use of oleic acid ethylene glycol monoester or stearic acid ethylene glycol monoester as plasticizers significantly reduces the increase of the brittleness of PHB-V over time. It is relevant that this drawback of PHB-V materials can be significantly improved by plasticizer addition.
机译：聚（3-羟基丁酸酯-CO-3-羟基戊戊烷）（PHB-V）未被用于要求技术应用，尚未由于其机械性能有限，特别是其高脆性。克服这些限制的适当途径是通过配合实施PHB-V基质中的增塑剂。在本文中，研究了使用不同类型的脂肪酸酯作为PHB-V增塑剂。该研究描述了脂肪酸酯结构的差异（主要是脂肪酸烃链长度）的差异影响它们的增塑作用，从而影响PHB-V延性性能。为油酸甲基酯，棕榈酸甲酯或月桂酸乙二醇单酯获得了PHB-V化合物的最佳冲击性能。观察到1.4（用于整齐聚合物）至4.0-4.1kJ / m（2）的缺口冲击强度的增加。在同一时间刚度和高分子的强度下降，但保持足以用于技术应用的水平。 PHB-V材料的额外缺点随着时间的推移而增加了脆性。此外，本研究表明，使用油酸乙二醇单酯或硬脂酸乙二醇单酯作为增塑剂显着降低了PHB-V随时间的脆性的增加。结果表明，通过增塑剂加入可以显着改善PHB-V材料的缺点。

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  • 来源
    《Journal of Polymers and the Environment》 |2021年第1期|38-53|共16页
  • 作者

    Nosal Hanna; Moser Kevin; Warzala Marek; Holzer Andrei; Stanczyk Dorota; Sabura Ewa;

  • 作者单位

    Inst Synth Macromolecularorgan Compounds Renewable Raw Mat Dept LUKASIEWICZ Res Network Energetykow 9 PL-47225 Kedzierzyn Kozle Poland;

    Fraunhofer Inst Chem Technol ICT Joseph von Fraunhofer Str 7 D-76327 Pfinztal Germany;

    Inst Synth Macromolecularorgan Compounds Renewable Raw Mat Dept LUKASIEWICZ Res Network Energetykow 9 PL-47225 Kedzierzyn Kozle Poland;

    Fraunhofer Inst Chem Technol ICT Joseph von Fraunhofer Str 7 D-76327 Pfinztal Germany;

    Inst Synth Macromolecularorgan Compounds Renewable Raw Mat Dept LUKASIEWICZ Res Network Energetykow 9 PL-47225 Kedzierzyn Kozle Poland;

    Inst Synth Macromolecularorgan Compounds Renewable Raw Mat Dept LUKASIEWICZ Res Network Energetykow 9 PL-47225 Kedzierzyn Kozle Poland;

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  • 正文语种 eng
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  • 关键词

    PHB-V; Fatty acids esters; Bio-based plasticizer; Mechanical properties;

    机译：PHB-V;脂肪酸酯;基于生物的增塑剂;机械性能;

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