Study on plasticizing PLA using natural plasticizers available in Vietnam as a matrix resin for biodegradable PLA/cellulose composites

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-03-29 DOI:10.1002/vjch.202300292

Dao Hai Yen, Hoang Thi Phuong, Nguyen Van Chien, Doan Ha Phuong, Ta Thuy Nguyen

{"title":"Study on plasticizing PLA using natural plasticizers available in Vietnam as a matrix resin for biodegradable PLA/cellulose composites","authors":"Dao Hai Yen, Hoang Thi Phuong, Nguyen Van Chien, Doan Ha Phuong, Ta Thuy Nguyen","doi":"10.1002/vjch.202300292","DOIUrl":null,"url":null,"abstract":"The study's objective was to evaluate the role of epoxidized vegetable oils (EVOs) in the properties of polylactic acid (PLA) and PLA/cellulose composite materials. This study selects EVOs derived from commonly used vegetable oils in Vietnam, namely soybean oil, Cleidiocarpon cavaleriei oil, and linseed oil, as potential plasticizer agents for PLA. In this study, PLA and composite samples will be prepared using the melting method on a co‐rotating twin‐screw extruder. The evaluation of plastic efficiency in PLA is carried out through the XRD, physical properties, and differential scanning calorimetry analysis (DSC). The results show that the effective usage of EVOs agent was demonstrated by a decrease in PLA's Tg values. In particular, the Tg values of PLA‐ESBO, PLA‐ELO, and PLA‐ECCO were 54.8 °C, 52.3 °C, and 51.4 °C, respectively, as compared to the Tg value of PLA at 58.8 °C. In the XRD spectrum, the EVOs change the crystallization structure of PLA. Specifically, the intensity peak at 2θ ≈ 14.6° is markedly reduced in the EVO‐containing sample, while a distinct and intense peak disturbance emerges at 2θ ≈ 16.6°. The utilization of EVOs has been observed to impact the mechanical characteristics of PLA, resulting in a decrease in the tensile strength and an increase in the elongation at break.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":"87 2","pages":""},"PeriodicalIF":17.7000,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/vjch.202300292","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

The study's objective was to evaluate the role of epoxidized vegetable oils (EVOs) in the properties of polylactic acid (PLA) and PLA/cellulose composite materials. This study selects EVOs derived from commonly used vegetable oils in Vietnam, namely soybean oil, Cleidiocarpon cavaleriei oil, and linseed oil, as potential plasticizer agents for PLA. In this study, PLA and composite samples will be prepared using the melting method on a co‐rotating twin‐screw extruder. The evaluation of plastic efficiency in PLA is carried out through the XRD, physical properties, and differential scanning calorimetry analysis (DSC). The results show that the effective usage of EVOs agent was demonstrated by a decrease in PLA's Tg values. In particular, the Tg values of PLA‐ESBO, PLA‐ELO, and PLA‐ECCO were 54.8 °C, 52.3 °C, and 51.4 °C, respectively, as compared to the Tg value of PLA at 58.8 °C. In the XRD spectrum, the EVOs change the crystallization structure of PLA. Specifically, the intensity peak at 2θ ≈ 14.6° is markedly reduced in the EVO‐containing sample, while a distinct and intense peak disturbance emerges at 2θ ≈ 16.6°. The utilization of EVOs has been observed to impact the mechanical characteristics of PLA, resulting in a decrease in the tensile strength and an increase in the elongation at break.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

利用越南现有的天然增塑剂对聚乳酸进行增塑，将其作为可生物降解的聚乳酸/纤维素复合材料的基体树脂的研究

本研究的目的是评估环氧化植物油（EVO）在聚乳酸（PLA）和聚乳酸/纤维素复合材料性能中的作用。本研究选择从越南常用植物油（即大豆油、Cleidiocarpon cavaleriei 油和亚麻籽油）中提取的 EVO 作为聚乳酸的潜在增塑剂。本研究将在同向旋转双螺杆挤压机上采用熔融法制备聚乳酸和复合材料样品。通过 XRD、物理性质和差示扫描量热分析（DSC）对聚乳酸的塑化效率进行评估。结果表明，EVOs 剂的有效使用体现在聚乳酸 Tg 值的降低上。特别是 PLA-ESBO、PLA-ELO 和 PLA-ECCO 的 Tg 值分别为 54.8 ℃、52.3 ℃ 和 51.4 ℃，而 PLA 的 Tg 值为 58.8 ℃。在 XRD 光谱中，EVO 改变了聚乳酸的结晶结构。具体来说，在含有 EVO 的样品中，2θ ≈ 14.6°处的峰强度明显降低，而在 2θ ≈ 16.6°处出现了明显而强烈的峰干扰。据观察，使用 EVO 会影响聚乳酸的机械特性，导致拉伸强度降低，断裂伸长率增加。

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分钟内获得全文去求助

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.