Synthesis and characterisation of poly (lactic acid)/halloysite bionanocomposite films

被引：79

作者：

De Silva, R. T. ^{[1
]}

Pasbakhsh, Pooria ^{[1
]}

Goh, K. L. ^{[2
]}

Chai, S-P ^{[3
]}

Chen, J. ^{[2
,4
]}

机构：

[1] Monash Univ, Mech Engn Discipline, Sch Engn, Bandar Sunway 46150, Selangor Darul, Malaysia

[2] Newcastle Univ, Sch Mech & Syst Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[3] Monash Univ, Chem Engn Discipline, Sch Engn, Bandar Sunway 46150, Selangor Darul, Malaysia

[4] Newcastle Univ, Arthrit Res UK ARUK Tissue Engn Ctr, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

JOURNAL OF COMPOSITE MATERIALS | 2014年 / 48卷 / 30期

关键词：

Halloysite nanotubes; poly (lactic acid) bionanocomposite films; mechanical properties; chemical interaction; thermal stability; POLY(LACTIC ACID); MECHANICAL-PROPERTIES; NANOCOMPOSITES; POLYLACTIDE; PLA; COMPOSITES; HALLOYSITE; MORPHOLOGY; NANOINDENTATION; NANOTUBES;

D O I：

10.1177/0021998313513046

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Poly (lactic acid) (PLA)/natural halloysite nanotubes (HNTs) films were prepared by solution casting method to investigate their properties for packaging applications. Tensile test results revealed that the maximum tensile elastic modulus (1.40 +/- 0.05GPa) and tensile strength (52.75 +/- 1.80MPa) were achieved at 5 w/w % of HNTs (in a range of 0-10 w/w % HNT concentrations). A nanoindentation test was performed to confirm the reinforcing effect of HNTs. Analysis of electron micrographs of the fracture surfaces suggested that the reinforcing mechanism was subjected to the interfacial interaction between HNTs and PLA. Infrared spectra revealed that the end hydroxyl groups of PLA chemically interacted with HNTs' outer surface siloxane groups via hydrogen bonding. In addition, the contact angle test and thermogravimetric analysis were used to investigate the surface wettability and thermal stability of the PLA/HNT films, respectively.

引用

页码：3705 / 3717

页数：13

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