Organización Internacional del Bambú y el Ratán

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Preparation and Characterization of Maleic Anhydride Compatibilized Poly(lactic acid)/Bamboo Particles Biocomposites

Artículos

Revista/Conferencia:

JOURNAL OF POLYMERS AND THE ENVIRONMENT

Language:

English

Autor:

Qian Shaoping; Mao Hailiang; Zarei Elmira

Experts:

Sheng Kuichuan

Año:

2015

Volumen:

23

Edición:

3

Número de páginas:

341-347

Palabras claves:

Surface modification; Compatibilization; Coupling agent; Bamboo fiber; Alkali treatment

To improve the interfacial interaction between poly(lactic acid) (PLA) and bamboo particles (BP), sodium hydroxide solution was employed to pretreat BP, and then maleic anhydride (MAH) was used to compatibilize PLA/BP biocomposites. The biocomposites were prepared through melt blending and hot-pressing. Effects of MAH concentration on the properties of BP and PLA/BP biocomposites were investigated using Fourier transform infrared spectroscopy, mechanical measurements, differential scanning calorimetric, melt flow rate (MFR) analysis and scanning electron microscope. Results showed that interfacial interaction between PLA and BP in the biocomposites was improved with MAH compatibilizer. Tensile strength and elongation at break of PLA/BP biocomposites, reached maximal values of 47.6 MPa and 6.22 %, respectively, when treated with 1.0 % MAH. Maximal flexural strength of 72.61 MPa and flexural modulus of 4.65 GPa were obtained with 0.5 % MAH treatment, and thermal properties were also improved at this concentration. MFR of the blends was enhanced with MAH compatibilization.