Reinforcement of graphene nanoplatelets on plasticized poly(lactic acid) nanocomposites: Mechanical, thermal, morphology, and antibacterial properties

被引：20

作者：

Chieng, Buong Woei ^{[1
]}

Ibrahim, Nor Azowa ^{[1
]}

Yunus, Wan Md Zin Wan ^{[2
]}

Hussein, Mohd Zobir ^{[3
]}

Then, Yoon Yee ^{[1
]}

Loo, Yuet Ying ^{[4
]}

机构：

[1] Univ Putra Malaysia, Fac Sci, Dept Chem, Upm Serdang 43400, Selangor, Malaysia

[2] Natl Def Univ Malaysia, Ctr Def Fdn Studies, Dept Chem, Kuala Lumpur 57000, Malaysia

[3] Univ Putra Malaysia, Inst Adv Technol, Mat Synth & Characterizat Lab, Upm Serdang 43400, Selangor, Malaysia

[4] Univ Putra Malaysia, Fac Food Sci & Technol, Dept Food Sci, Upm Serdang 43400, Selangor, Malaysia

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2015年 / 132卷 / 11期

关键词：

mechanical properties; morphology; polyesters; properties and characterization; thermogravimetric analysis (TGA);

D O I：

10.1002/app.41652

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Plasticized poly(lactic acid) (PLA)-based nanocomposites filled with graphene nanoplatelets (xGnP) and containing poly(ethylene glycol) (PEG) and epoxidized palm oil (EPO) with ratio 2 : 1 (2P : 1E) as hybrid plasticizer were prepared by melt blending method. The key objective is to take advantage of plasticization to increase the material ductility while preserving valuable stiffness, strength, and toughness via addition of xGnP. The tensile modulus of PLA/2P : 1E/0.1 wt % xGnP was substantially improved (30%) with strength and elasticity maintained, as compared to plasticized PLA. TGA analysis revealed that the xGnP was capable of acting as barrier to reduce thermal diffusion across the plasticized PLA matrix, and thus enhanced thermal stability of the plasticized PLA. Incorporation of xGnP also enhanced antimicrobial activity of nanocomposites toward Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, and Listeria monocytogenes. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41652.

引用

页数：5

共 19 条

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