Production and characterization of agricultural waste natural fiber-filled polylactic acid composites

IF 3.1 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2025-03-07 DOI:10.1007/s00289-025-05698-3

İbrahim Şen, Kutlay Sever

{"title":"Production and characterization of agricultural waste natural fiber-filled polylactic acid composites","authors":"İbrahim Şen, Kutlay Sever","doi":"10.1007/s00289-025-05698-3","DOIUrl":null,"url":null,"abstract":"<div><p>The objective of this study was to obtain new composites containing polylactic acid (PLA) with artichoke stem (AP) at concentrations of 1%, 3%, 5%, 7%, and 10% by weight using a twin-screw extruder. The composites were created using biodegradable PLA and postharvest agricultural waste AP. The study aimed to determine whether these composites could be used. Thermal, mechanical, and morphological characterization of AP and these composites were performed. The findings of the study revealed that AP particles exhibited chemical and physical properties similar to other natural fibers. When incorporated into composites, these materials showed increased density and elastic modulus. However, decreases in tensile strength, elongation at break, and unnotched Izod impact were observed. Dynamic mechanical analysis revealed that PLA exhibited higher storage modulus (<i>E′</i>) values compared to AP-filled composites at 40 °C. In the differential scanning calorimetry analysis, while there was a slight fluctuation in the glass transition temperature (<i>T</i><sub>g</sub>) in the AP-filled composites, significant increases in the crystallinity degree (<i>X</i><sub>c</sub>) were observed when looking at the values of PLA. The results of the thermal gravimetric analysis showed that both <i>T</i><sub>max</sub> and <i>T</i><sub>s</sub> values of the composite decreased as the AP content in PLA increased. Furthermore, SEM imaging of the composites containing P5AP clearly demonstrated the presence and distribution of AP particles within the PLA matrix.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 9","pages":"4051 - 4074"},"PeriodicalIF":3.1000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00289-025-05698-3.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Bulletin","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s00289-025-05698-3","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

The objective of this study was to obtain new composites containing polylactic acid (PLA) with artichoke stem (AP) at concentrations of 1%, 3%, 5%, 7%, and 10% by weight using a twin-screw extruder. The composites were created using biodegradable PLA and postharvest agricultural waste AP. The study aimed to determine whether these composites could be used. Thermal, mechanical, and morphological characterization of AP and these composites were performed. The findings of the study revealed that AP particles exhibited chemical and physical properties similar to other natural fibers. When incorporated into composites, these materials showed increased density and elastic modulus. However, decreases in tensile strength, elongation at break, and unnotched Izod impact were observed. Dynamic mechanical analysis revealed that PLA exhibited higher storage modulus (E′) values compared to AP-filled composites at 40 °C. In the differential scanning calorimetry analysis, while there was a slight fluctuation in the glass transition temperature (T_g) in the AP-filled composites, significant increases in the crystallinity degree (X_c) were observed when looking at the values of PLA. The results of the thermal gravimetric analysis showed that both T_max and T_s values of the composite decreased as the AP content in PLA increased. Furthermore, SEM imaging of the composites containing P5AP clearly demonstrated the presence and distribution of AP particles within the PLA matrix.

Graphical abstract

查看原文本刊更多论文

农业废弃物天然纤维填充聚乳酸复合材料的制备与表征

本研究的目的是利用双螺杆挤出机，以重量为1%，3%,5%，7%和10%的浓度，获得含有洋蓟茎（AP）的聚乳酸（PLA）的新型复合材料。该复合材料是由可生物降解的聚乳酸和收获后的农业废弃物AP制成的。该研究旨在确定这些复合材料是否可以使用。对AP及其复合材料进行了热、力学和形态表征。研究结果表明，AP颗粒具有与其他天然纤维相似的化学和物理特性。当加入到复合材料中时，这些材料显示出增加的密度和弹性模量。然而，抗拉强度、断裂伸长率和无缺口Izod冲击均有所下降。动态力学分析表明，与ap填充复合材料相比，PLA在40°C下具有更高的存储模量（E '）值。在差示扫描量热分析中，虽然ap填充复合材料的玻璃化转变温度（Tg）有轻微波动，但PLA的结晶度（Xc）明显增加。热重分析结果表明，随着PLA中AP含量的增加，复合材料的Tmax和Ts值均降低。此外，含有P5AP的复合材料的SEM成像清楚地显示了AP颗粒在PLA基体中的存在和分布。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."