title: Morphological influence of cellulose nanoparticles (CNs) from cottonseed hulls on rheological properties of polyvinyl alcohol/CN suspensions.
abstract: The present work describes the isolation of cellulose nanoparticles (CNs) with different morphologies and their influence on rheological properties of CN and CN-poly (vinyl alcohol) (PVA) suspensions. Cottonseed hulls were used for the first time to extract three types of CNs, including fibrous cellulose nanofibers, rod-like cellulose nanocrystals and spherical cellulose nanoparticles through mechanical and chemical methods. Rheology results showed that the rheological behavior of the CN suspensions was strongly dependent on CN concentration and particle morphology. For PVA/CN systems, concentration of PVA/CN suspension, morphology of CNs, and weight ratio of CN to PVA were three main factors that influenced their rheology behaviors. This research reveals the importance of CN morphology and composition concentration on the rheological properties of PVA/CN, providing new insight in preparing high performance hydrogels, fibers and films base on PVA/CN suspension systems.
authors: School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China; School of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, LA 70803, USA.
authors: Ling
authors: L
authors: Zhou
authors: School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: pshuihe@scut.edu.cn.
authors: Hui
authors: H
authors: He
authors: School of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, LA 70803, USA.
authors: Mei-Chun
authors: MC
authors: Li
authors: School of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, LA 70803, USA.
authors: Kunlin
authors: K
authors: Song
authors: Southern Regional Research Center, USDA Agricultural Research Service, New Orleans, LA 70124, USA.
authors: H N
authors: HN
authors: Cheng
authors: School of Renewable Natural Resources, Louisiana State University AgCenter, Baton Rouge, LA 70803, USA. Electronic address: qwusfm@gmail.com.
authors: Qinglin
authors: Q
authors: Wu
mesh_terms: D002482:Cellulose / Q000737:chemistry* / Q000648:ultrastructure; D003369:Cottonseed Oil / Q000737:chemistry*; D020100:Hydrogels / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D012212:Rheology; D013535:Suspensions; D014783:Viscosity
chemical_list: D003369:Cottonseed Oil; D020100:Hydrogels; D013535:Suspensions; D011142:Polyvinyl Alcohol; D002482:Cellulose
keywords: Cellulose nanocrystals; Cottonseed hull; Morphology; Polyvinyl alcohol; Rheological behavior