Mechanical and morphological properties of poly(butylene adipate‐co‐terephthalate) and poly(lactic acid) blended with organically modified silicate layers

Polymer Engineering and Science - Tập 52 Số 7 - Trang 1420-1428 - 2012
Mahin Shahlari1, Sunggyu Lee2
1Department of Chemical and Biological Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409
2Department of Chemical and Biomolecular Engineering, Ohio University, Athens, Ohio 45701

Tóm tắt

AbstractPoly(butylene adipate‐co‐terephthalate) (PBAT) is a biodegradable polymer with high ultimate elongation but low modulus. This work studied the addition of a rigid bio‐based and biodegradable polymer, poly(lactic acid) (PLA), along with organically modified silicate layers as a conceivable means to improve the modulus of PBAT. Blending with PLA would also reduce both the cost of the ultimate blend and its dependence on nonrenewable resources. Compounds of PBAT with PLA and organically modified silicate layers showed significantly improved tensile and flexural strength resulting in enhanced thermomechanical performances compared to neat PBAT. The state of clay dispersion was evaluated using common analytical techniques such as transmission electron microscopy, X‐ray diffraction, and rheometry. The clay platelets were partially dispersed in a PBAT and PLA phase and a large portion of the platelets were located at the interface. The incorporation of organoclay reduced the dispersed phase domain (i.e., PLA) size significantly. The smaller PLA size however, did not translate into better elongational properties. POLYM. ENG. SCI., 2012. © 2012 Society of Plastics Engineers

Từ khóa


Tài liệu tham khảo

10.1016/j.carbon.2009.07.023

10.1021/ie900576f

10.1002/app.28512

10.1016/j.polymdegradstab.2004.10.011

10.1016/j.pmatsci.2005.05.002

10.1016/j.polymer.2008.04.017

10.1016/j.progpolymsci.2003.08.002

10.1002/polb.20957

Bhardwaj R., 2007, Bio‐Macromolecules, 8, 183

10.1002/marc.200400452

10.1021/ma011613e

10.1021/cm020953r

10.1016/j.polymdegradstab.2009.11.015

10.1021/bm050581q

10.1016/j.carbpol.2008.01.017

10.1016/j.polymdegradstab.2008.10.004

10.1007/s10853-008-3049-4

10.1021/cm062693

10.1021/ma070356w

10.1007/3-540-45362-8_1

10.1111/j.1750-3841.2009.01456.x

10.1126/science.1122225

10.1016/j.polymer.2010.04.074

10.1016/j.progpolymsci.2003.08.002

10.1016/j.progpolymsci.2008.07.008

10.1016/j.progpolymsci.2008.10.002

10.1016/j.polymertesting.2004.03.003

10.1002/pen.20108

10.1002/pen.20103

10.1016/S0032-3861(98)00277-8

10.1021/ma060125

10.1002/pi.1593

10.1021/ma0352072

10.1016/j.polymer.2010.08.036

10.1002/app.24174

Utracki L.A., 2004, Clay‐Containing Polymeric Nanocomposites

10.1016/j.polymer.2006.02.031

10.1016/j.polymdegradstab.2006.12.010

10.1016/j.eurpolymj.2005.12.022

10.1007/s10924-006-0033-4

10.1016/S0032-3861(02)00778-4

10.1016/j.polymer.2005.10.065

10.1016/j.polymer.2007.09.020

10.1016/j.polymer.2005.10.100

10.1021/ma049283w

10.1122/1.2516399

10.1016/j.polymer.2005.04.038

10.1021/ma960550a

10.1122/1.3372720