FigsharePub Date : 2023-06-23DOI: 10.1021/acssuschemeng.3c00474.s001
Zhiren Wang (1484317), Kexia Jin (16439555), Khak Ho Lim (4977251), Pingwei Liu (1757221), Dan Lu (135836), Xuan Yang (1395235), Wen-jun Wang (6617279)
{"title":"Biodegradable Poly(butylene adipate-<i>co</i>-terephthalate) Nanocomposites Reinforced with <i>In Situ</i> Fibrillated Nanocelluloses","authors":"Zhiren Wang (1484317), Kexia Jin (16439555), Khak Ho Lim (4977251), Pingwei Liu (1757221), Dan Lu (135836), Xuan Yang (1395235), Wen-jun Wang (6617279)","doi":"10.1021/acssuschemeng.3c00474.s001","DOIUrl":"https://doi.org/10.1021/acssuschemeng.3c00474.s001","url":null,"abstract":"Thenenhancement of mechanical properties is highly required fornthe expanded applications of biodegradable polymers like poly(butylenenadipate-co-terephthalate) (PBAT). The use of nanocellulose as reinforcingnfillers is one of the effective approaches while preserving the biodegradabilitynof polymers, but the dispersion of nanofibers in polymer matrixesnis a great challenge. Here, we report an <i>in situ</i> fibrillationnmethod to prepare nanocellulose-reinforced PBAT composite films withnsuperior mechanical properties and enhanced degradability while promotingnthe easy dispersion of natural plant fibers in the polymer matrix,nwhich overcome the limitation of natural fiber composites for thinnfilm applications. A hemicellulose-rich holocellulose fiber was selectednand silanized prior to melt compounding with PBAT, in which <i>in situ</i> fibrillation of fibers and the dispersion of <i>in situ</i> fibrillated cellulose nanofibrils (CNFs) occurrednsimultaneously. The nanostructure, mechanical properties, and degradabilitynof the resulting composite films were characterized. Compared withnpristine PBAT, the incorporation of 1 wt % CNF fillers increased thentensile modulus by 82% while possessing a tensile strength of 26 MPa,nan elongation of 372%, and a toughness of 75 MJ/m<sup>3</sup>, surpassingnmost reported data. Moreover, the degradability of PBAT was enhancednas well. Altogether, this study paves a new way of making biodegradablennanocomposites, which expand the application areas, especially wherenfilms are required.","PeriodicalId":522916,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147906135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}