Microcrystalline cellulose reinforced polylactic acid biocomposite filaments for 3D printing

Polymer Composites - Tập 39 Số 4 - Trang 1311-1320 - 2018
Caroline A. Murphy1, Maurice N. Collins2
1Department of Civil Engineering and Materials Science, University of Limerick, Limerick, Ireland
2Stokes Laboratories, University of Limerick, Limerick, Ireland

Tóm tắt

The aim of this study was to produce a novel microcrystalline cellulose (MCC) reinforced polylactic acid (PLA), fully degradable biocomposites for 3D printing applications. The biocomposites were produced in filament form by solvent casting and twin screw extrusion to achieve final concentrations of 1, 3, and 5 wt% of cellulose. In order to improve compatibility with the PLA, the cellulose was surface‐modified using a titanate coupling agent. Influence of cellulose content and modification on the morphological, mechanical, and thermal properties of the biocomposites were studied. Differential scanning calorimetry results reveal an increase in crystallinity for all biocomposites, with 3 wt% surface‐modified cellulose displaying highest values. Dynamic mechanical thermal analysis results show that storage modulus increased for all biocomposites when compared with neat PLA, with the most significant increase associated with the 3 wt% modified cellulose. The surface modification of cellulose shifted the tan delta peak of the 1 and 3 wt% biocomposite toward lower temperatures, indicating an increased mobility of the PLA chains. Finally, the extruded cellulose reinforced PLA filaments were successfully 3D printed using a fused deposition modeling technique. POLYM. COMPOS., 39:1311–1320, 2018. © 2016 Society of Plastics Engineers

Từ khóa


Tài liệu tham khảo

10.3390/ma6115171

10.1016/j.compscitech.2010.07.005

10.1016/j.progpolymsci.2013.05.014

10.1021/cr900339w

10.1016/S0266-3538(03)00103-9

10.1016/j.compositesa.2011.12.025

10.1007/s10570-010-9405-y

10.1016/j.compscitech.2008.03.006

10.1002/app.21779

10.1016/j.compscitech.2009.02.022

10.1007/s10570-010-9419-5

10.1016/j.compscitech.2009.03.004

10.1002/app.36413

10.1016/j.compscitech.2014.11.012

10.3390/ma6051745

10.1007/s10570-011-9525-z

10.1007/s10570-011-9576-1

10.1016/j.carbpol.2012.08.054

10.1016/j.carbpol.2013.11.067

10.1007/s10570-009-9387-9

10.1016/S0921-5093(00)01810-4

10.1002/app.12496

10.1016/S0928-4931(03)00052-3

10.1021/ma034623j

10.1021/bm050098f

10.1016/j.compositesa.2005.04.015

Monte S.J., Kenrich Petrochemicals Inc.

10.1016/j.polymer.2008.01.028

10.1016/j.ijpharm.2016.01.036

10.1016/j.polymertesting.2014.03.002

10.1016/j.jmbbm.2015.03.020

10.1039/C2RA21722H

10.1023/A:1021808317416

10.1021/bm901186u

Thông tin
Thông tin xuất bản

Polymer Composites

Tập 39 Số 4

1311-1320

Thông tin tác giả