Development and Characterization of Poly(butylene succinate-co-adipate)/Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with Cowpea Lignocellulosic Fibers as a Filler via Injection Molding and Extrusion Film-Casting

IF 4.2 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Mondli Abednicko Masanabo, Amélie Tribot, Enni Luoma, Jussi Virkajärvi, Nusrat Sharmin, Morten Sivertsvik, Suprakas Sinha Ray, Janne Keränen, M. Naushad Emmambux
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引用次数: 0

Abstract

Biodegradable poly(butylene succinate-co-adipate)/Poly(3-hydroxybutyrate-co-3-hydoxyvalerate) (PBSA/PHBV) filled with lignocellulosic sidestream/fibers from cowpea, a neglected and underutilized African crop are produced by injection molding and extrusion film casting. Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) suggests that the fibers have more affinity and interfacial interaction with PBSA than PHBV. This is shown by a decrease in dampening of PBSA and an increase in dampening of PHBV with fiber addition. In addition, fiber addition results in more homogeneous crystal morphology of PBSA, while resulting in more heterogeneous crystal morphology of PHBV. The tensile strength of injection molded bio-composites increases with fiber addition due to good interfacial adhesion between the matrix and fibers revealed by scanning electron microscope. In contrast, the tensile strength of bio-composite films decreases with fiber addition due to the high-volume fraction of pores in bio-composite films that act as stress raisers. The stiffness of both injection molded, and bio-composite films increase with fiber addition, as revealed by an increase in Young's modulus and storage modulus, while the tensile strain decreases. In conclusion, low-value cowpea sidestream can be used as a filler to produce injection molded bio-composites and bio-composite films for potential application as rigid and flexible packaging.

Abstract Image

Abstract Image

以豇豆木质纤维素纤维为填充物,通过注塑成型和挤压铸膜技术开发聚(丁二酸丁二醇酯-己二酸丁二醇酯)/聚(3-羟基丁酸酯-3-羟基戊酸酯)并确定其特性
通过注塑和挤出薄膜浇注法生产出了可生物降解的聚(丁二酸丁二醇酯-共己二酸)/聚(3-羟基丁酸-共 3-羟基戊酸)(PBSA/PHBV),其中填充了来自豇豆(一种被忽视且利用率低的非洲作物)的木质纤维素副流/纤维。差示扫描量热法(DSC)和动态机械分析法(DMA)表明,纤维与 PBSA 的亲和力和界面相互作用比 PHBV 更强。这表现在加入纤维后,PBSA 的阻尼减小,而 PHBV 的阻尼增大。此外,纤维的加入使 PBSA 的晶体形态更加均匀,而 PHBV 的晶体形态更加异质。扫描电子显微镜显示,由于基体和纤维之间具有良好的界面粘附性,注塑生物复合材料的拉伸强度随纤维添加量的增加而增加。相反,生物复合膜的拉伸强度会随着纤维的添加而降低,这是由于生物复合膜中的孔隙体积分数较高,起到了提高应力的作用。注射成型薄膜和生物复合薄膜的刚度都会随着纤维的添加而增加,这体现在杨氏模量和存储模量的增加上,而拉伸应变则会降低。总之,低价值的豇豆副流可以作为一种填料,用于生产注塑生物复合材料和生物复合薄膜,有望应用于硬包装和软包装。
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来源期刊
Macromolecular Materials and Engineering
Macromolecular Materials and Engineering 工程技术-材料科学:综合
CiteScore
7.30
自引率
5.10%
发文量
328
审稿时长
1.6 months
期刊介绍: Macromolecular Materials and Engineering is the high-quality polymer science journal dedicated to the design, modification, characterization, processing and application of advanced polymeric materials, including membranes, sensors, sustainability, composites, fibers, foams, 3D printing, actuators as well as energy and electronic applications. Macromolecular Materials and Engineering is among the top journals publishing original research in polymer science. The journal presents strictly peer-reviewed Research Articles, Reviews, Perspectives and Comments. ISSN: 1438-7492 (print). 1439-2054 (online). Readership:Polymer scientists, chemists, physicists, materials scientists, engineers Abstracting and Indexing Information: CAS: Chemical Abstracts Service (ACS) CCR Database (Clarivate Analytics) Chemical Abstracts Service/SciFinder (ACS) Chemistry Server Reaction Center (Clarivate Analytics) ChemWeb (ChemIndustry.com) Chimica Database (Elsevier) COMPENDEX (Elsevier) Current Contents: Physical, Chemical & Earth Sciences (Clarivate Analytics) Directory of Open Access Journals (DOAJ) INSPEC (IET) Journal Citation Reports/Science Edition (Clarivate Analytics) Materials Science & Engineering Database (ProQuest) PASCAL Database (INIST/CNRS) Polymer Library (iSmithers RAPRA) Reaction Citation Index (Clarivate Analytics) Science Citation Index (Clarivate Analytics) Science Citation Index Expanded (Clarivate Analytics) SciTech Premium Collection (ProQuest) SCOPUS (Elsevier) Technology Collection (ProQuest) Web of Science (Clarivate Analytics)
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