3D Printing of UV-Curable Polyurethane Incorporated with Surface-Grafted Nanocellulose

被引：42

作者：

Mohan, Denesh ^{[1
,2
]}

Sajab, Mohd Shaiful ^{[1
,2
]}

Kaco, Hatika ^{[3
]}

Bakarudin, Saiful Bahari ^{[4
]}

Mohamed Noor, An'amt ^{[5
]}

机构：

[1] Univ Kebangsaan Malaysia, Res Ctr Sustainable Proc Technol CESPRO, Fac Engn & Built Environm, Bangi 43600, Malaysia

[2] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Chem & Proc Engn, Bangi 43600, Malaysia

[3] Univ Sains Islam Malaysia, Kolej GENIUS Insan, Bandar Baru Nilai 71800, Malaysia

[4] Univ Kebangsaan Malaysia, Inst Microengn & Nanoelect IMEN, Bangi 43600, Malaysia

[5] Univ Malaysia Kelantan, Adv Mat Res Cluster, Fac Bioengn & Technol, Jeli 17600, Kelantan, Malaysia

来源：

NANOMATERIALS | 2019年 / 9卷 / 12期

关键词：

additive manufacturing; cellulose nanofibrils; nanocomposites; nanoindentation; stereolithography; MECHANICAL-PROPERTIES; CELLULOSE; FIBERS; NANOCOMPOSITES; PERFORMANCE; NANOFIBRILS; REMOVAL; AEROGEL; ANGLE;

D O I：

10.3390/nano9121726

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The recognition of nanocellulose has been prominent in recent years as prospect materials, yet the ineffectiveness of nanocellulose to disperse in an organic solvent has restricted its utilization, especially as a reinforcement in polymer nanocomposite. In this study, cellulose has been isolated and defibrillated as cellulose nanofibrils (CNF) from oil palm empty fruit bunch (EFB) fibers. Subsequently, to enhance its compatibility with UV-curable polyurethane (PU)-based resin, the surface hydrophilicity of CNF has been tailored with polyethylene glycol (PEG), as well as reduced graphene oxide (rGO). The dispersibility of reinforced modified CNF in UV-curable PU was examined through the transmittance interruption of resin, chemical, and mechanical properties of the composite printed using the stereolithographic technique. Evidently, the enhanced compatibility of modified CNF and UV-curable PU was shown to improve the tensile strength and hardness of the composites by 37% and 129%, respectively.

引用

页数：16

共 51 条

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