Jerred Wassgren, Brandon R. Clarke, M. Bachir Messikh, Ching-Hsien Ho, Alfred J. Crosby, Gregory N. Tew, Kenneth R. Carter
{"title":"利用 TEMPO 氧化纤维增强纳米纤维素 xerogels 的机械性能","authors":"Jerred Wassgren, Brandon R. Clarke, M. Bachir Messikh, Ching-Hsien Ho, Alfred J. Crosby, Gregory N. Tew, Kenneth R. Carter","doi":"10.1016/j.carbpol.2024.122839","DOIUrl":null,"url":null,"abstract":"<div><div>We report xerogels prepared from TEMPO-oxidized cellulose nanofiber (Ox-CNF) that have enhanced yield stresses and Young's Modulus (<em>E</em>) up to 15.4 MPa. The xerogels were highly porous (>95 %) and were measured by density determination, SEM, Brunauer-Emmet-Teller (BET) experiments, and microCT analysis. The xerogels had a density of 0.0182 to 0.0471 g/cm<sup>3</sup>. We report that the solvent exchange process introduces a distribution of pore sizes and leads to enhanced mechanical properties. Mechanical properties were evaluated by monotonic and cyclical uniaxial compression measurements using a flat punch. These highly porous Ox-CNF xerogels have superior mechanical properties to other CNF xerogels and aerogels.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"348 ","pages":"Article 122839"},"PeriodicalIF":10.7000,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancement of mechanical properties of nanocellulose xerogels using TEMPO-oxidized fibers\",\"authors\":\"Jerred Wassgren, Brandon R. Clarke, M. Bachir Messikh, Ching-Hsien Ho, Alfred J. Crosby, Gregory N. Tew, Kenneth R. Carter\",\"doi\":\"10.1016/j.carbpol.2024.122839\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We report xerogels prepared from TEMPO-oxidized cellulose nanofiber (Ox-CNF) that have enhanced yield stresses and Young's Modulus (<em>E</em>) up to 15.4 MPa. The xerogels were highly porous (>95 %) and were measured by density determination, SEM, Brunauer-Emmet-Teller (BET) experiments, and microCT analysis. The xerogels had a density of 0.0182 to 0.0471 g/cm<sup>3</sup>. We report that the solvent exchange process introduces a distribution of pore sizes and leads to enhanced mechanical properties. Mechanical properties were evaluated by monotonic and cyclical uniaxial compression measurements using a flat punch. These highly porous Ox-CNF xerogels have superior mechanical properties to other CNF xerogels and aerogels.</div></div>\",\"PeriodicalId\":261,\"journal\":{\"name\":\"Carbohydrate Polymers\",\"volume\":\"348 \",\"pages\":\"Article 122839\"},\"PeriodicalIF\":10.7000,\"publicationDate\":\"2024-10-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Carbohydrate Polymers\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0144861724010658\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbohydrate Polymers","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0144861724010658","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Enhancement of mechanical properties of nanocellulose xerogels using TEMPO-oxidized fibers
We report xerogels prepared from TEMPO-oxidized cellulose nanofiber (Ox-CNF) that have enhanced yield stresses and Young's Modulus (E) up to 15.4 MPa. The xerogels were highly porous (>95 %) and were measured by density determination, SEM, Brunauer-Emmet-Teller (BET) experiments, and microCT analysis. The xerogels had a density of 0.0182 to 0.0471 g/cm3. We report that the solvent exchange process introduces a distribution of pore sizes and leads to enhanced mechanical properties. Mechanical properties were evaluated by monotonic and cyclical uniaxial compression measurements using a flat punch. These highly porous Ox-CNF xerogels have superior mechanical properties to other CNF xerogels and aerogels.
期刊介绍：
Carbohydrate Polymers stands as a prominent journal in the glycoscience field, dedicated to exploring and harnessing the potential of polysaccharides with applications spanning bioenergy, bioplastics, biomaterials, biorefining, chemistry, drug delivery, food, health, nanotechnology, packaging, paper, pharmaceuticals, medicine, oil recovery, textiles, tissue engineering, wood, and various aspects of glycoscience.
The journal emphasizes the central role of well-characterized carbohydrate polymers, highlighting their significance as the primary focus rather than a peripheral topic. Each paper must prominently feature at least one named carbohydrate polymer, evident in both citation and title, with a commitment to innovative research that advances scientific knowledge.
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