Investigation of the Effect of Chemical Treatment on the Properties of Colombian Banana and Coir Fibers and Their Adhesion Behavior on Polylactic Acid and Unsaturated Polyester Matrices

Fibers Pub Date : 2024-01-03 DOI:10.3390/fib12010006

Ismael Barrera-Fajardo, Oswaldo Rivero-Romero, J. Unfried-Silgado

{"title":"Investigation of the Effect of Chemical Treatment on the Properties of Colombian Banana and Coir Fibers and Their Adhesion Behavior on Polylactic Acid and Unsaturated Polyester Matrices","authors":"Ismael Barrera-Fajardo, Oswaldo Rivero-Romero, J. Unfried-Silgado","doi":"10.3390/fib12010006","DOIUrl":null,"url":null,"abstract":"In this work, the adhesion behavior of chemically treated banana and coir Colombian fibers embedded in polylactic acid (PLA) and unsaturated polyester resin (UPR) matrices was investigated. Both types of fibers were treated with a 5 wt.% sodium hydroxide solution for one hour. The properties of treated and untreated fibers were determined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and tensile tests. To evaluate the adhesion behavior of the fibers in PLA and UPR matrices, pull-out tests were performed, and the percentage of broken fibers was determined. The results showed that alkaline treatment improved the fibers’ physicochemical, mechanical, and thermal properties. In addition, the alkaline treatment was able to improve the adhesion behavior of coir and banana fibers to PLA and UPR matrices. The banana fibers showed a percentage of broken fibers of 100%, while the coir fibers showed a slight increase in IFSS value. This behavior is attributed to the improvement in surface roughness due to the removal of non-cellulosic composites and impurities.","PeriodicalId":503983,"journal":{"name":"Fibers","volume":"20 19","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fibers","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/fib12010006","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

In this work, the adhesion behavior of chemically treated banana and coir Colombian fibers embedded in polylactic acid (PLA) and unsaturated polyester resin (UPR) matrices was investigated. Both types of fibers were treated with a 5 wt.% sodium hydroxide solution for one hour. The properties of treated and untreated fibers were determined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and tensile tests. To evaluate the adhesion behavior of the fibers in PLA and UPR matrices, pull-out tests were performed, and the percentage of broken fibers was determined. The results showed that alkaline treatment improved the fibers’ physicochemical, mechanical, and thermal properties. In addition, the alkaline treatment was able to improve the adhesion behavior of coir and banana fibers to PLA and UPR matrices. The banana fibers showed a percentage of broken fibers of 100%, while the coir fibers showed a slight increase in IFSS value. This behavior is attributed to the improvement in surface roughness due to the removal of non-cellulosic composites and impurities.

查看原文本刊更多论文

化学处理对哥伦比亚香蕉和椰子纤维特性及其在聚乳酸和不饱和聚酯基质上粘附行为的影响研究

在这项工作中，研究了经过化学处理的香蕉纤维和哥伦比亚椰壳纤维嵌入聚乳酸（PLA）和不饱和聚酯树脂（UPR）基质中的粘附行为。这两种纤维都用 5 wt.% 的氢氧化钠溶液处理了一小时。通过扫描电子显微镜（SEM）、傅立叶变换红外光谱（FTIR）、热重分析（TGA）和拉伸试验测定了处理过和未处理过的纤维的特性。为了评估纤维在聚乳酸和 UPR 基质中的粘附行为，进行了拉出试验，并测定了断裂纤维的百分比。结果表明，碱性处理改善了纤维的物理化学、机械和热性能。此外，碱性处理还能改善椰壳纤维和香蕉纤维与聚乳酸和 UPR 基质的粘附行为。香蕉纤维的纤维断裂率为 100%，而椰子纤维的 IFSS 值则略有增加。这种行为归因于非纤维素复合材料和杂质的去除改善了表面粗糙度。

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

Fibers

自引率

0.00%

发文量