Rheological properties of poly(lactic acid) based nanocomposites: Effects of different organoclay modifiers and compatibilizers

Acik, Eda; Orbey, Neşe; Yilmazer, Ülkü

doi:10.1002/app.42915

Cited by 14 publications

(10 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The difference in the morphologies of E-GMA and E-BA-MAH containing nanocomposites is reflected in both mechanical and rheological properties, and the latter is discussed in another publication. 30 In that study, the apparent shear-thinning observed in PLAorganoclay nanocomposites containing E-BA-MAH was attributed to weaker interactions between MAH and PLA, as compared to GMA and PLA.…”

Section: Scanning Electron Microscopymentioning

confidence: 84%

Poly(lactic acid)–layered silicate nanocomposites: The effects of modifier and compatibilizer on the morphology and mechanical properties

Cumkur

Baouz

Yilmazer

2015

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Poly(lactic acid) (PLA) based nanocomposites were prepared to investigate the effects of types of nanoclays. Five different organically modified nanoclays (Cloisites V R 15A, 25A, and 30B, and Nanofils V R 5 and 8) were used. Two rubbery compatibilizers, ethylene-glycidyl methacrylate (E-GMA) and ethylene-butyl acrylate-maleic anhydride, were used in the nanocomposites as compatibilizer-impact modifier. The degree of clay dispersion, the chemical compatibility between the polymer matrix and the compatibilizers, and changes in the morphology and mechanical properties of the nanocomposites were investigated. The mechanical properties and the morphological studies showed that the interactions between the different compatibilizers and PLA resulted in different structures and properties; such that the dispersion of clay, droplet size of the compatibilizer, and tensile properties were distinctly dependent on the type of the compatibilizer. Compatibility between C25A, C30B, and E-GMA resulted in the best level of dispersion, leading to the highest tensile modulus and toughness among the compositions studied. In the mentioned nanocomposites, a network structure was formed owing to the high reactivity of the epoxide group of GMA towards the PLA end groups resulting in high impact toughness.

show abstract

Section: Scanning Electron Microscopymentioning

confidence: 84%

Poly(lactic acid)–layered silicate nanocomposites: The effects of modifier and compatibilizer on the morphology and mechanical properties

Cumkur

Baouz

Yilmazer

2015

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…With the addition of the clay to the PLA/BioPE blend the slopes (shown in Fig. 5b) of the curves at the terminal zone substantially decreases and the G 0 is almost independent of the frequency, indicating that the behavior is changed from liquid-like to solid-like, which may be ascribed to the formation of a percolated network structure [26]. Figure 5c shows the damping factor (tan d) as a function of temperature.…”

Section: Rheological Properties Under Dynamic-oscillatorymentioning

confidence: 97%

Effect of ethylene‐methyl acrylate compatibilizer on the thermo‐mechanical, rheological, and morphological properties of poly(Lactic acid)/biopolyethylene/clay biocomposites

et al. 2016

View full text Add to dashboard Cite

In this study, the effect of ethylene‐methyl acrylate (EMA) compatibilizer on the thermo‐mechanical, rheological, and morphological properties of poly(lactic acid) (PLA)/biopolyethylene (BioPE)/OMMT clay biocomposites was investigated. The biocomposites containing 1 and 3 phr of OMMT clay were characterized by X‐ray diffraction (XRD), mechanical properties, scanning electron microscopy (SEM), dynamic mechanical thermal analysis (DMTA), and rheological properties under oscillatory shear flow. XRD results indicated that bionanocomposites with an intercalated structure were obtained for the PLA/BioPE/EMA/OMMT system containing 1 and 3 phr of OMMT clay. The addition of OMMT clay to PLA/BioPE blend led to a decrease in the modulus and tensile strength, while the impact strength was increased. The increase in the clay content from 1 to 3 phr did not affect the modulus and the tensile strength of the PLA/BioPE blend, while the impact strength was decreased. The impact strength of the PLA/BioPE/EMA/OMMT biocomposite containing 3 phr of clay was superior to that containing 1 phr of clay. The addition of EMA to PLA/BioPE/OMMT biocomposites substantially decreased the average size of the BioPE phase domains. DMTA results showed a decrease in the glass transition temperature (Tg) of PLA with the addition of OMMT clay to PLA/BioPE blend. Rheological measurements showed an increase in the viscosity at low frequencies with the addition OMMT to PLA/BioPE blend. Further increase in the viscosity was observed when EMA compatibilizer was added to PLA/BioPE/OMMT biocomposite. The results of DMTA and rheological measurements were ascribed to the morphology refinement and corroborated the results obtained by SEM. POLYM. COMPOS., 39:E164–E173, 2018. © 2016 Society of Plastics Engineers

show abstract

“…The addition of E‐GMA introduces a solid‐like rheological behavior at low frequencies. All of the nanocomposites have similar rheological behavior at high frequencies …”

Section: Reinforcing Pla‐based Materials Through Nanocompositesmentioning

confidence: 98%

“…All of the nanocomposites have similar rheological behavior at high frequencies. [41] Graphite/carbon-based composites Carbonaceous nanocomposites like CNT, graphite, and carbon black have been extensively investigated nanofillers. They enhance mechanical resilience and thermal/electrical conductivity.…”

Section: Reinforcing Pla-based Materials Through Nanocompositesmentioning

confidence: 99%

Poly(lactic acid)‐based nanocomposites

Basu

Nazarkovsky

Ghadi

et al. 2016

Polymers for Advanced Techs

View full text Add to dashboard Cite

Classic plastics accumulate in nature causing environmental pollution, yet as a counterbalance they benefit society in many ways. They are versatile, cost‐effective, and can be tailored to have desired properties. The global environment has led to the fabrication of commodity plastics from environmentally degradable polymers. Poly(lactic acid) (PLA) is the most promising among the environmentally friendly polymers available. PLA‐based plastics have mechanical, thermal, and transparency similar to traditional plastics, and they can be molded and fabricated using the same equipment and procedures. Their material properties are enhanced through nanocomposites, compatibilizers, plasticizers, and other fillers (flame retardant, ultraviolet filter, etc.). This review summarizes mass production techniques and property reinforcements (focusing on nanocomposites and plasticizers) for PLA‐based plastics for commodity use. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Rheological properties of poly(lactic acid) based nanocomposites: Effects of different organoclay modifiers and compatibilizers

Cited by 14 publications

References 30 publications

Poly(lactic acid)–layered silicate nanocomposites: The effects of modifier and compatibilizer on the morphology and mechanical properties

Poly(lactic acid)–layered silicate nanocomposites: The effects of modifier and compatibilizer on the morphology and mechanical properties

Effect of ethylene‐methyl acrylate compatibilizer on the thermo‐mechanical, rheological, and morphological properties of poly(Lactic acid)/biopolyethylene/clay biocomposites

Poly(lactic acid)‐based nanocomposites

Contact Info

Product

Resources

About