Dynamic Mechanical Properties and Thermal Stability of Poly(lactic Acid) and Poly(butylene Succinate) Blends Composites

2013 ◽  
Vol 6 (1) ◽  
pp. 85-94 ◽  
Author(s):  
Yu Muhuo
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Lactic Acid ◽  
Dynamic Mechanical Properties ◽  
Poly Lactic Acid ◽  
Butylene Succinate ◽  
Dynamic Mechanical ◽  
Thermal Stability Of

Dynamic Mechanical Properties and Thermal Stability of PTT/POE/OMMT Nanocomposites

2011 ◽  
Vol 366 ◽  
pp. 306-309
Author(s):  
Ming Tao Run ◽  
Na Li ◽  
Bing Tao Xing ◽  
Meng Yao ◽  
Wen Zhou
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Dynamic Mechanical Properties ◽  
Thermal Gravimetric ◽  
Dynamic Mechanical ◽  
Thermal Gravimetric Analyzer ◽  
Transmission Electron ◽  
Reinforcing Agent ◽  
Thermal Stability Of

The dynamic mechanical properties, phase morphology and thermal stability of the poly(trimethylene terephthalate)/maleinized poly(octene-ethylene)/organo-montmorillonite nanocomposites (PTT/POE/OMMT) were investigated by using the thermodynamic mechanical analyzer (DMA), transmission electron microscopy (TEM) and thermal gravimetric analyzer (TGA), respectively. The results suggest that the modulus of elasticity of the PTT/POE/OMMT nanocomposite increases, and the glass transition temperature first slightly decreases and then increases with increasing OMMT content because that the TPP plays the role of plasticizer and OMMT plays the role of reinforcing agent. OMMT disperse evenly in the polymer matrix with most of the strip-like sheet morphology. The addition of the OMMT does not apparently affect the thermal stability of the PTT/POE/OMMT nanocomposite.

scholarly journals Recycling of Mixed Poly(Ethylene-terephthalate) and Poly(Lactic Acid)

2019 ◽  
Vol 253 ◽  
pp. 02005
Author(s):  
Daniel Gere ◽  
Tibor Czigany
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Lactic Acid ◽  
Impact Strength ◽  
Ethylene Terephthalate ◽  
Poly Lactic Acid ◽  
Elongation At Break ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Thermal Stability Of

Nowadays, PLA is increasingly used as a packaging material, therefore it may appear in the petrol-based polymer waste stream. However, with the today’s mechanical recycling technologies PLA and PET bottles cannot be easily or cheaply separated. Therefore, our goal was to investigate the mechanical, morphological and thermal properties of different PET and PLA compounds in a wide range of compositions. We made different compounds from poly(ethylene-terephthalate) (PET) and poly(lactic acid) (PLA) by extrusion, and injection molded specimens from the compounds. We investigated the mechanical properties and the phase morphology of the samples and the thermal stability of the regranulates. PET and PLA are thermodynamically immiscible, therefore we observed a typical island-sea type morphology in SEM micrographs. When PLA was added, the mechanical properties (tensile strength, modulus, elongation at break and impact strength) changed significantly. The Young’s modulus increased, while elongation at break and impact strength decreased with the increase of the weight fraction of PLA. The TGA results indicated that the incorporation of PLA decreased the thermal stability of the PET/PLA blends.

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