{"title":"Advancements in component separation through chemical methods for recycled polyester/cotton blended textiles","authors":"Jianhua Ma, Kaili Yang, Mengxin Wang, Jinyu Shan, Dong Yang, Guangming Tian","doi":"10.1007/s10570-024-06182-3","DOIUrl":null,"url":null,"abstract":"<div><p>The recycling of waste textiles is of great significance for reducing carbon emissions and promoting sustainable development. It is an important measure to effectively supplement the supply of raw materials in the textile industry, alleviate resource and environmental constraints, and is also an essential part of establishing a sound green economic system. This work focuses on the literature review of chemical separation technology of polyester/cotton blended textiles, highlighting the component separation of polyester and cotton fibers through polyester depolymerization and cellulose dissolution. For the polyester depolymerization separation route, we have examined the advantages and disadvantages of hydrolysis, alcoholysis, and ethylene glycol alcoholysis in depolymerizing polyester to achieve component separation of blended textiles. For the hydrolysis or dissolution separation of the cotton component, we have elaborated on the hydrolysis of cellulose under acidic conditions and the dissolution process of cellulose in non-derivatizing solvents. Meanwhile, we also conducted a survey on the application progress of enzymatic hydrolysis technology in the field of component separation of blended textiles, aiming to gain a more comprehensive understanding of the current technological status and development direction of waste polyester/cotton blended textile component separation. Finally, we summarized the existing problems and challenges of the chemical separation technology for blended textiles, including fabric decolorization, and looked forward to the future trends in the chemical recycling of waste textiles. We expect that this review will provide a reference for the green regeneration and application development of waste polyester/cotton blended textiles.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"31 16","pages":"9543 - 9563"},"PeriodicalIF":4.9000,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cellulose","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10570-024-06182-3","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
引用次数: 0
Abstract
The recycling of waste textiles is of great significance for reducing carbon emissions and promoting sustainable development. It is an important measure to effectively supplement the supply of raw materials in the textile industry, alleviate resource and environmental constraints, and is also an essential part of establishing a sound green economic system. This work focuses on the literature review of chemical separation technology of polyester/cotton blended textiles, highlighting the component separation of polyester and cotton fibers through polyester depolymerization and cellulose dissolution. For the polyester depolymerization separation route, we have examined the advantages and disadvantages of hydrolysis, alcoholysis, and ethylene glycol alcoholysis in depolymerizing polyester to achieve component separation of blended textiles. For the hydrolysis or dissolution separation of the cotton component, we have elaborated on the hydrolysis of cellulose under acidic conditions and the dissolution process of cellulose in non-derivatizing solvents. Meanwhile, we also conducted a survey on the application progress of enzymatic hydrolysis technology in the field of component separation of blended textiles, aiming to gain a more comprehensive understanding of the current technological status and development direction of waste polyester/cotton blended textile component separation. Finally, we summarized the existing problems and challenges of the chemical separation technology for blended textiles, including fabric decolorization, and looked forward to the future trends in the chemical recycling of waste textiles. We expect that this review will provide a reference for the green regeneration and application development of waste polyester/cotton blended textiles.
期刊介绍：
Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.
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