Abstract

In order to improve the toughness, thermal property and impact resistance of PLA, clay m odified with different surface treatment agents (titanium ester, silane coupling agent and alkylamine) was added to PLA matrix. The samples were examined by fourier transform infrared (FT-IR) spectroscopy, micropolariscopy and mechanical properties thermogravimetric analysis, differential scanning calorimetry(DSC). The results show that titanium ester's modification works best. The thermal resistance and crystallinity were improved, the tensile strength reached 61.2MPa, increasing by 20.0% compared to unprocessed materials and 26.7% in comparison to pure PLA.

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