set as homepage | add to favorites for collection | contact us
Notice:
PublicationsEnrollment
Hot News / Hot news
2020 - 08 - 23
点击次数:
Article: Applications of super hydrophobic liquid-solid friction nanogenerators as droplet sensor...
2020 - 08 - 19
点击次数:
[Research Trends] Professor Yang Guang's team, School of Life Sciences, Huazhong University of Sc...
2020 - 07 - 18
点击次数:
July 9, 2020Bricard and clemence, international students in 3-Bio research group, successfully co...
2020 - 07 - 15
点击次数:
On February 20th, Advanced Science published online the latest genetic and functional modificatio...
2020 - 07 - 10
点击次数:
According to the Regulations of Huazhong University of Science and Technology on the Transformati...
2020 - 07 - 01
点击次数:
Prof. Guang Yang’s group makes progress in self-healing hydrogels and wound healing18 June 2020...
2020 - 06 - 30
点击次数:
"Learning in Epidemic" series of cloud report, let the teachers and students better charge during...
2020 - 06 - 28
点击次数:
Synthesis of bacterial cellulose based on solid-g​as-liquid interfaceBacterial Cellulose (Bacter...
微博 / WeiBo
Enrollment Publications
Bio-based green composites with high performance from poly(lactic acid) and surface-modified microcr
Date: 2017-06-08
page view:

 

Essay topic:Bio-based green composites with high performance from poly(lactic acid) and surface-modified microcrystalline cellulose

AmbitFunctional polymer

Author:Lin Xiao, Yiyong Mai, Feng He, Longjiang Yu, Limin Zhang, Huiru Tang and Guang Yang *

Key words:cellulose, green composites

Source: journal

Specific source :JMC,2012,22, 15732–15739

Published:2012.07

Abstract:

Bio-based green composites with high performance were prepared from poly(lactic acid) (PLA) and microcrystalline cellulose (MC) fibers grafted with L-lactic acid oligomers (g-MC). The chemical structure of g-MC was characterized by FTIR and NMR methods, which indicate that L-lactic acid oligomers were successfully grafted onto microcrystalline cellulose. The grafting percentage of L-lactic acid oligomers is ca. 3%, and the average degree of polymerization of grafted L-lactic acid oligomers is ca. 10. The compatibility between PLA and MC is significantly improved by the grafting modification. SEM micrographs and sample transparency show that the g-MC has a good dispersion and homogeneity in the g-MC/PLA composites. DSC studies indicate that the crystallinity of PLA is enhanced by the g-MC existed in the composites. Due to the improved compatibility between g-MC and PLA, the g-MC/PLA composites exhibit better mechanical properties than pure PLA, with a high tensile strength of 70 MPa as well as a higher elongation at break. The enhanced properties along with the excellent biocompatibility and degradability would offer the biobased composites potential applications in biomedical fields and the packaging industry.

Address:Huazhong University of Science and Technology, No. 1037 LuoYu East Road, Hongshan District, Wuhan City, Hubei Province, 
 Address: Department of Life Science and Technology, East Campus, Huazhong University of Science and Technology, No. 1037 LuoYu
 Address: Department of Life Science and Technology, East Campus, Huazhong University of Science and Technology, No. 1037 LuoYu Address: College of Life Science and Technology, East Campus, Huazhong University of Science and Technology, No. 1037 LuoYu East  


Road, Hongshan District, Wuhan City, Hubei Province, China

All copyright Huazhong University of Science and Technology