Main content

New Engineered Materials from Biobased Plastics and Lignin

Show full item record

Title: New Engineered Materials from Biobased Plastics and Lignin
Author: Chen, Richard
Department: School of Engineering
Program: Engineering
Advisor: Mohanty, Dr Amar K.Misra, Dr Manjusri
Abstract: The blending of lignin as a component in a thermoplastic blend poses a challenge in the form of dispersion and compatibility. Polyesters such as poly(lactic acid) and poly(butylene adipate-co-terephthalate) offer the best opportunity of compatibility in melt blending with lignin due to their ability to form hydrogen bonds. The fractionation of lignin into more homogeneous fractions offers better dispersion and more consistent properties, retaining the toughness of the original polymer in addition to bridging stress transfer between PLA and PBAT. Functionalization of lignin was done by lactic acid grafting. The resulting blend of PLA/PBAT/modified fractionated lignin showed improved interaction between lignin and PLA, but reduced compatibility between lignin and PBAT. This thesis provides a deeper understanding on the effect of lignin heterogeneity, its fractions, and the functionalization of lignin on lignin and bioplastic blends to further the use of a largely produced industrial by-product in high value applications.
URI: http://hdl.handle.net/10214/5294
Date: 2012-12
Terms of Use: All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.


Files in this item

Files Size Format View
Chen_Richard_201301_MAsC.pdf 2.632Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record