{"title":"利用深共晶溶剂从废棉织物中分离出硫酸化纤维素纳米晶及其在聚合物纳米复合薄膜中的应用","authors":"Lebin Zhao, Yutong Zhang, Yu Pan, Chaohong Dong, Xiujuan Huang, Gangqiang Zhang, Kaitao Zhang","doi":"10.1002/vnl.22154","DOIUrl":null,"url":null,"abstract":"<jats:label/>The growing utilization of textiles raises concerns about the ecological hazards of textile production methods and discarded textiles. The recycling and reusing of waste cotton materials align with the sustainable development of society. In this study, sulfated cellulose was synthesized by sulfating waste cotton using a deep eutectic solvent (DES). After nanofibrillation with ultrasonication, sulfated cellulose nanocrystal (SCNC) with an average width of 10.83 nm and an average length of 129.40 nm was produced. The thermal properties of the synthesized SCNC were significantly enhanced compared to the pristine cellulose, with a notable reduction of 87.1% in the peak heat release rate, as well as an 86.6% reduction in the total heat release. Additionally, when utilized as a reinforcement in poly(vinyl alcohol) (PVA) films, SCNC demonstrated a substantial rise in yield strength (from 62.3 to 94.8 MPa) and Young's modulus (from 2.7 to 4.4 GPa) of the PVA films. Furthermore, the incorporation of SCNC into composites increased the thermal stability while maintaining the high transparency (with light transmission higher than 84%), which has good potential for application in the electronic packaging field.Highlights<jats:list list-type=\"bullet\"> <jats:list-item>SCNC were successfully prepared from waste cotton using DES.</jats:list-item> <jats:list-item>Extracted S<jats:ext-link xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"https://www.sciencedirect.com/topics/chemistry/cellulose-nanocrystals\">CNC</jats:ext-link> were characterized using TEM, FTIR, XRD, TGA and MCC.</jats:list-item> <jats:list-item>SCNC enhanced the yield strength and thermal stability of PVA composites.</jats:list-item> <jats:list-item>Transparent and mechanically robust PVA‐based nanocomposites were created.</jats:list-item> </jats:list>","PeriodicalId":17473,"journal":{"name":"Journal of Vinyl and Additive Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sulfated cellulose nanocrystal isolated from waste cotton fabrics by deep eutectic solvent and its application in polymer nanocomposite films\",\"authors\":\"Lebin Zhao, Yutong Zhang, Yu Pan, Chaohong Dong, Xiujuan Huang, Gangqiang Zhang, Kaitao Zhang\",\"doi\":\"10.1002/vnl.22154\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<jats:label/>The growing utilization of textiles raises concerns about the ecological hazards of textile production methods and discarded textiles. The recycling and reusing of waste cotton materials align with the sustainable development of society. In this study, sulfated cellulose was synthesized by sulfating waste cotton using a deep eutectic solvent (DES). After nanofibrillation with ultrasonication, sulfated cellulose nanocrystal (SCNC) with an average width of 10.83 nm and an average length of 129.40 nm was produced. The thermal properties of the synthesized SCNC were significantly enhanced compared to the pristine cellulose, with a notable reduction of 87.1% in the peak heat release rate, as well as an 86.6% reduction in the total heat release. Additionally, when utilized as a reinforcement in poly(vinyl alcohol) (PVA) films, SCNC demonstrated a substantial rise in yield strength (from 62.3 to 94.8 MPa) and Young's modulus (from 2.7 to 4.4 GPa) of the PVA films. Furthermore, the incorporation of SCNC into composites increased the thermal stability while maintaining the high transparency (with light transmission higher than 84%), which has good potential for application in the electronic packaging field.Highlights<jats:list list-type=\\\"bullet\\\"> <jats:list-item>SCNC were successfully prepared from waste cotton using DES.</jats:list-item> <jats:list-item>Extracted S<jats:ext-link xmlns:xlink=\\\"http://www.w3.org/1999/xlink\\\" xlink:href=\\\"https://www.sciencedirect.com/topics/chemistry/cellulose-nanocrystals\\\">CNC</jats:ext-link> were characterized using TEM, FTIR, XRD, TGA and MCC.</jats:list-item> <jats:list-item>SCNC enhanced the yield strength and thermal stability of PVA composites.</jats:list-item> <jats:list-item>Transparent and mechanically robust PVA‐based nanocomposites were created.</jats:list-item> </jats:list>\",\"PeriodicalId\":17473,\"journal\":{\"name\":\"Journal of Vinyl and Additive Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Vinyl and Additive Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/vnl.22154\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl and Additive Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/vnl.22154","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Sulfated cellulose nanocrystal isolated from waste cotton fabrics by deep eutectic solvent and its application in polymer nanocomposite films
The growing utilization of textiles raises concerns about the ecological hazards of textile production methods and discarded textiles. The recycling and reusing of waste cotton materials align with the sustainable development of society. In this study, sulfated cellulose was synthesized by sulfating waste cotton using a deep eutectic solvent (DES). After nanofibrillation with ultrasonication, sulfated cellulose nanocrystal (SCNC) with an average width of 10.83 nm and an average length of 129.40 nm was produced. The thermal properties of the synthesized SCNC were significantly enhanced compared to the pristine cellulose, with a notable reduction of 87.1% in the peak heat release rate, as well as an 86.6% reduction in the total heat release. Additionally, when utilized as a reinforcement in poly(vinyl alcohol) (PVA) films, SCNC demonstrated a substantial rise in yield strength (from 62.3 to 94.8 MPa) and Young's modulus (from 2.7 to 4.4 GPa) of the PVA films. Furthermore, the incorporation of SCNC into composites increased the thermal stability while maintaining the high transparency (with light transmission higher than 84%), which has good potential for application in the electronic packaging field.HighlightsSCNC were successfully prepared from waste cotton using DES.Extracted SCNC were characterized using TEM, FTIR, XRD, TGA and MCC.SCNC enhanced the yield strength and thermal stability of PVA composites.Transparent and mechanically robust PVA‐based nanocomposites were created.