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Mechanical properties and in vitro degradation of electrospun bio-nanocomposite mats from PLA and cellulose nanocrystals.
Carbohydr Polym. 2012 Sep 01; 90(1):301-8.CP

Abstract

Fibrous bio-nanocomposite mats consisting of cellulose nanocrystals (CNCs) and poly(lactic acid) (PLA) were electrospun from a solvent mixture consisting of N,N'-dimethylformamide and chloroform at room temperature. Morphological, mechanical and thermal properties, as well as in vitro degradation of nanocomposite mats were characterized as a function of material composition. Average diameter of the electrospun fibers decreased with increased CNC-loading level. Thermal stability, and tensile strength and modulus of nanocomposite mats were effectively improved by the addition of CNCs up to the 5 wt% level. The reinforcement of CNCs on electrospun mats was illustrated by the observation of SEM-based morphologies on the tensile fracturing process of nanocomposite mats. At the CNC content of 5 wt%, the maximum tensile stress and Young's modulus of the nanocomposite mats increased by 5 and 22 folds than those of neat PLA mats, respectively. Moreover, compared with neat PLA mats, the nanocomposite mats, especially at high CNC-loading levels, degraded more rapidly in phosphate-buffered saline solution.

Authors+Show Affiliations

School of Material Science & Engineering, East China University of Science & Technology, Shanghai 200237, China; School of Renewable Natural Resource, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.School of Renewable Natural Resource, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.School of Renewable Natural Resource, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.School of Material Science & Engineering, East China University of Science & Technology, Shanghai 200237, China.College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.School of Renewable Natural Resource, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

24751045

Citation

Shi, Qingfeng, et al. "Mechanical Properties and in Vitro Degradation of Electrospun Bio-nanocomposite Mats From PLA and Cellulose Nanocrystals." Carbohydrate Polymers, vol. 90, no. 1, 2012, pp. 301-8.
Shi Q, Zhou C, Yue Y, et al. Mechanical properties and in vitro degradation of electrospun bio-nanocomposite mats from PLA and cellulose nanocrystals. Carbohydr Polym. 2012;90(1):301-8.
Shi, Q., Zhou, C., Yue, Y., Guo, W., Wu, Y., & Wu, Q. (2012). Mechanical properties and in vitro degradation of electrospun bio-nanocomposite mats from PLA and cellulose nanocrystals. Carbohydrate Polymers, 90(1), 301-8. https://doi.org/10.1016/j.carbpol.2012.05.042
Shi Q, et al. Mechanical Properties and in Vitro Degradation of Electrospun Bio-nanocomposite Mats From PLA and Cellulose Nanocrystals. Carbohydr Polym. 2012 Sep 1;90(1):301-8. PubMed PMID: 24751045.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Mechanical properties and in vitro degradation of electrospun bio-nanocomposite mats from PLA and cellulose nanocrystals. AU - Shi,Qingfeng, AU - Zhou,Chengjun, AU - Yue,Yiying, AU - Guo,Weihong, AU - Wu,Yiqiang, AU - Wu,Qinglin, Y1 - 2012/05/23/ PY - 2012/01/03/received PY - 2012/04/19/revised PY - 2012/05/15/accepted PY - 2014/4/23/entrez PY - 2012/9/1/pubmed PY - 2015/10/17/medline SP - 301 EP - 8 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 90 IS - 1 N2 - Fibrous bio-nanocomposite mats consisting of cellulose nanocrystals (CNCs) and poly(lactic acid) (PLA) were electrospun from a solvent mixture consisting of N,N'-dimethylformamide and chloroform at room temperature. Morphological, mechanical and thermal properties, as well as in vitro degradation of nanocomposite mats were characterized as a function of material composition. Average diameter of the electrospun fibers decreased with increased CNC-loading level. Thermal stability, and tensile strength and modulus of nanocomposite mats were effectively improved by the addition of CNCs up to the 5 wt% level. The reinforcement of CNCs on electrospun mats was illustrated by the observation of SEM-based morphologies on the tensile fracturing process of nanocomposite mats. At the CNC content of 5 wt%, the maximum tensile stress and Young's modulus of the nanocomposite mats increased by 5 and 22 folds than those of neat PLA mats, respectively. Moreover, compared with neat PLA mats, the nanocomposite mats, especially at high CNC-loading levels, degraded more rapidly in phosphate-buffered saline solution. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/24751045/Mechanical_properties_and_in_vitro_degradation_of_electrospun_bio_nanocomposite_mats_from_PLA_and_cellulose_nanocrystals_ DB - PRIME DP - Unbound Medicine ER -