木质素分馏是提高聚乳酸热稳定性和阻燃性的有效途径

L. Costes, M. Aguedo, Loic Brison, S. Brohez, A. Richel, F. Laoutid
{"title":"木质素分馏是提高聚乳酸热稳定性和阻燃性的有效途径","authors":"L. Costes, M. Aguedo, Loic Brison, S. Brohez, A. Richel, F. Laoutid","doi":"10.1515/flret-2018-0002","DOIUrl":null,"url":null,"abstract":"Abstract Due to its variable botanical origin, functionality, reactivity, and heterogeneity, using lignin in industrial application is not an easy task. In the present study, we investigate the effect of lignin fractionation as a simple way for reducing the variability in its properties. Kraft lignin was separated by ultrafiltration membranes in two fractions with a specific molecular weight and the properties of each fraction were characterized through FTIR, XPS, TGA and cone calorimeter test. Lignin fractions display different thermal and combustion behaviors. Thus, the two fractions have been evaluated as flame retardant additives for polylactide (PLA). PLA composites, containing well dispersed lignin (20 wt%), were produced by melt blending in an internal mixer. The thermo-degradant effect of each fraction on PLA during melt processing was investigated by rheological analysis and size exclusion chromatography while the composites thermal stability and fire properties were evaluated using TGA and cone calorimeter test. Results showed that using appropriate lignin fraction enables for obtaining PLA composites presenting enhanced properties","PeriodicalId":12171,"journal":{"name":"Flame Retardancy and Thermal Stability of Materials","volume":"1 1","pages":"14 - 24"},"PeriodicalIF":0.0000,"publicationDate":"2018-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Lignin fractionation as an efficient route for enhancing Polylactide thermal stability and flame retardancy\",\"authors\":\"L. Costes, M. Aguedo, Loic Brison, S. Brohez, A. Richel, F. Laoutid\",\"doi\":\"10.1515/flret-2018-0002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Due to its variable botanical origin, functionality, reactivity, and heterogeneity, using lignin in industrial application is not an easy task. In the present study, we investigate the effect of lignin fractionation as a simple way for reducing the variability in its properties. Kraft lignin was separated by ultrafiltration membranes in two fractions with a specific molecular weight and the properties of each fraction were characterized through FTIR, XPS, TGA and cone calorimeter test. Lignin fractions display different thermal and combustion behaviors. Thus, the two fractions have been evaluated as flame retardant additives for polylactide (PLA). PLA composites, containing well dispersed lignin (20 wt%), were produced by melt blending in an internal mixer. The thermo-degradant effect of each fraction on PLA during melt processing was investigated by rheological analysis and size exclusion chromatography while the composites thermal stability and fire properties were evaluated using TGA and cone calorimeter test. Results showed that using appropriate lignin fraction enables for obtaining PLA composites presenting enhanced properties\",\"PeriodicalId\":12171,\"journal\":{\"name\":\"Flame Retardancy and Thermal Stability of Materials\",\"volume\":\"1 1\",\"pages\":\"14 - 24\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-07-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Flame Retardancy and Thermal Stability of Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/flret-2018-0002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Flame Retardancy and Thermal Stability of Materials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/flret-2018-0002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7

摘要

由于其多变的植物来源、功能、反应性和异质性,在工业应用中使用木质素并不是一件容易的事。在本研究中,我们研究了木质素分馏作为一种降低其性质变异性的简单方法的影响。采用超滤膜将硫酸盐木质素分离成具有一定比分子量的两组分,并通过红外光谱(FTIR)、XPS、热重分析(TGA)和锥形量热仪对各组分的性质进行了表征。木质素组分表现出不同的热和燃烧行为。因此,这两个馏分被评价为聚乳酸(PLA)的阻燃添加剂。采用内混炼法制备了分散良好的木质素(20% wt%)的聚乳酸复合材料。采用流变学分析和粒径排除色谱法考察了各组分在熔融加工过程中对PLA的热降解作用,采用热重分析和锥形量热计测试了复合材料的热稳定性和防火性能。结果表明,使用合适的木质素组分可以得到性能增强的聚乳酸复合材料
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lignin fractionation as an efficient route for enhancing Polylactide thermal stability and flame retardancy
Abstract Due to its variable botanical origin, functionality, reactivity, and heterogeneity, using lignin in industrial application is not an easy task. In the present study, we investigate the effect of lignin fractionation as a simple way for reducing the variability in its properties. Kraft lignin was separated by ultrafiltration membranes in two fractions with a specific molecular weight and the properties of each fraction were characterized through FTIR, XPS, TGA and cone calorimeter test. Lignin fractions display different thermal and combustion behaviors. Thus, the two fractions have been evaluated as flame retardant additives for polylactide (PLA). PLA composites, containing well dispersed lignin (20 wt%), were produced by melt blending in an internal mixer. The thermo-degradant effect of each fraction on PLA during melt processing was investigated by rheological analysis and size exclusion chromatography while the composites thermal stability and fire properties were evaluated using TGA and cone calorimeter test. Results showed that using appropriate lignin fraction enables for obtaining PLA composites presenting enhanced properties
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信