The influence of grafted cellulose nanofibers and postextrusion annealing treatment on selected properties of poly(lactic acid) filaments for 3D printing

被引：72

作者：

Dong, Ju ^{[1
]}

Li, Meichun ^{[1
]}

Zhou, Ling ^{[2
]}

Lee, Sunyoung ^{[3
]}

Mei, Changtong ^{[4
]}

Xu, Xinwu ^{[4
]}

Wu, Qinglin ^{[1
]}

机构：

[1] Louisiana State Univ, AgCtr, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA

[2] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

[3] Korea Natl Inst Forest Res, Dept Forest Prod, Seoul 130712, South Korea

[4] Nanjing Forestry Univ, Coll Mat Sci & Engn, Nanjing 210037, Jiangsu, Peoples R China

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2017年 / 55卷 / 11期

关键词：

3D printing filaments; annealing; cellulose nanofibers; extrusion; mechanical properties; RING-OPENING POLYMERIZATION; MECHANICAL-PROPERTIES; MICROFIBRILLATED CELLULOSE; NANOCOMPOSITES; REINFORCEMENT; NANOCRYSTALS; WHISKERS; STARCH; MELT; PLA;

D O I：

10.1002/polb.24333

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

l-lactide monomers were grafted onto cellulose nanofibers (CNFs) via ring-opening polymerization, forming poly(lactic acid) grafted cellulose nanofibers (PLA-g-CNFs). PLA-g-CNFs and pristine PLA were then blended in chloroform and dried to prepare a master batch. PLA-g-CNFs/PLA composite filaments targeted for 3D printing were produced by compounding the master batch in PLA matrix and melt extrusion. The as-extruded composite filaments were subsequently thermal annealed in a conventional oven, and their morphological, thermal, and mechanical properties were evaluated. PLA was successfully grafted on the surface of CNFs as demonstrated by elemental analysis, and the concentration of grafted PLA was estimated to be 33 wt %. The grafted PLA were highly crystallized, contributing to the growth of crystalline regions of PLA matrix. The incorporation of PLA-g-CNFs improved storage modulus of the composite filaments in both low temperature glassy state and high temperature rubbery state. Postextrusion annealing treatment led to 28 and 63% increases for tensile modulus and strength of the filaments, respectively. Simulated Young's moduli from the Halpin-Tsai and Krenchel models were found comparable with the experimental values. The formed composite filaments are suitable for use in 3D printing. (c) 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2017, 55, 847-855

引用

页码：847 / 855

页数：9

共 36 条

[1] Plasticized starch/tunicin whiskers nanocomposites.: 1.: Structural analysis [J].

Anglès, MN ;

Dufresne, A .

MACROMOLECULES, 2000, 33 (22) :8344-8353

[2] Strong Surface Treatment Effects on Reinforcement Efficiency in Biocomposites Based on Cellulose Nanocrystals in Poly(vinyl acetate) Matrix [J].

Ansari, Farhan ;

Salajkova, Michaela ;

Zhou, Qi ;

Berglund, Lars A. .

BIOMACROMOLECULES, 2015, 16 (12) :3916-3924

[3] One-pot polymerization, surface grafting, and processing of waterborne polyurethane-cellulose nanocrystal nanocomposites [J].

Cao, Xiaodong ;

Habibi, Youssef ;

Lucia, Lucian A. .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (38) :7137-7145

[4] A novel approach to grafting polymerization of ε-caprolactone onto starch granules [J].

Chen, L ;

Ni, YS ;

Bian, XC ;

Qiu, XY ;

Zhuang, XL ;

Chen, XS ;

Jing, XB .

CARBOHYDRATE POLYMERS, 2005, 60 (01) :103-109

[5] Thermally recyclable polylactic acid/cellulose nanocrystal films through reactive extrusion process [J].

Dhar, Prodyut ;

Tarafder, Debashis ;

Kumar, Amit ;

Katiyar, Vimal .

POLYMER, 2016, 87 :268-282

[6] Three-Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications [J].

Farahani, Rouhollah D. ;

Dube, Martine ;

Therriault, Daniel .

ADVANCED MATERIALS, 2016, 28 (28) :5794-5821

[7]

Fischer E.W., 1972, Pure Appl. Chem, V31, P1

[8] From Interfacial Ring-Opening Polymerization to Melt Processing of Cellulose Nanowhisker-Filled Polylactide-Based Nanocomposites [J].

Goffin, Anne-Lise ;

Raquez, Jean-Marie ;

Duquesne, Emmanuel ;

Siqueira, Gilberto ;

Habibi, Youssef ;

Dufresne, Alain ;

Dubois, Philippe .

BIOMACROMOLECULES, 2011, 12 (07) :2456-2465

[9] Evaluation of 3D Printing and Its Potential Impact on Biotechnology and the Chemical Sciences [J].

Gross, Bethany C. ;

Erkal, Jayda L. ;

Lockwood, Sarah Y. ;

Chen, Chengpeng ;

Spence, Dana M. .

ANALYTICAL CHEMISTRY, 2014, 86 (07) :3240-3253

[10] Physiochemical, optical and mechanical properties of poly(lactic acid) nanocomposites filled with toluene diisocyanate grafted cellulose [J].

Gwon, Jae-Gyoung ;

Cho, Hye-Jung ;

Chun, Sang-Jin ;

Lee, Soo ;

Wu, Qinglin ;

Lee, Sun-Young .

RSC ADVANCES, 2016, 6 (12) :9438-9445

← 1 2 3 4 →