Effect of glyceryl triacetate on properties of PLA/PBAT blends / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 839-847, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-337417
ABSTRACT
Poly lactic acid (PLA)/Poly (butyleneadipate-co-terephthalate)(PBAT) and glyceryl triacetate (GTA) blend were prepared by torque rheometer, and the effect of GTA on thermodynamical performance, mechanical properties and microstructure of PLA/PBAT composites were studied using differential scanning calorimeter(DSC), dynamic mechanical analysis(DMA), universal testing machine, impact testing machine and scanning electron microscope(SEM). After adding GTA, Tg values of the two phases gradually became closer, blends cold crystallization temperature and melting temperature decreased. When with 3 phr GTA, the dispersed phase particle size of PLA/PBAT blend decreased. Mechanics performance test showed that the elongation at break and impact strength of the PLA/PBAT blend was greatly increased with 3 phr GTA, and the elongation at break increased 2.6 times, improved from 17.7% to 64.1%.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Polyesters
/
Polymers
/
Temperature
/
Calorimetry, Differential Scanning
/
Chemistry
/
Lactic Acid
/
Crystallization
/
Acetates
Language:
Chinese
Journal:
Chinese Journal of Biotechnology
Year:
2016
Type:
Article
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