Degradation behaviors, thermostability and mechanical properties of poly (ethylene terephthalate)/polylactic acid blends

Xia, Xuelian; Liu, Wen Tao; Tang, Xin-ying; Shi, Xiangyang; Wang, Lina; He, Suqin; Chen, Zhu

doi:10.1007/s11771-014-2116-z

Cited by 26 publications

(15 citation statements)

References 33 publications

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“…studied the thermal degradation behavior of PET/PLA system. They showed that the presence of a large amount of PLA in the blend reduces its thermal stability . Yang et al .…”

Section: Introductionmentioning

confidence: 95%

“…It was reported that the use of modified nanoclay with 1,2‐dimethyl‐3‐ N ‐hexadecyl imidazoluim leads to good dispersion within the PET, and increases the thermal stability of PET . There are also some reports on the use of nano‐materials to improve thermal properties of PLA and PET/PLA blends . For example, Meng and coworkers developed PLA/clay nanocomposites via a melt mixing process.…”

Section: Introductionmentioning

confidence: 99%

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Development of degradable poly(ethylene terephthalate)‐based nanocomposites with the aid of polylactic acid and graphenic materials: Thermal, thermo‐oxidative and hydrolytic degradation characteristics

Jafari

Khajavi

Goodarzi

et al. 2019

J of Applied Polymer Sci

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Poly(ethylene terephthalate)/poly(lactic acid) (PET/PLA) blends with composition of 90/10 and 75/25 (wt %/wt %) along with two types of graphenic materials, namely graphene oxide (GO) and exfoliated graphite (xGnP), were prepared through one‐step melt mixing process. The Thermal, thermo‐oxidative, and hydrolytic degradation characteristics of the developed degradable PET‐based nanocomposites were investigated. Thermal degradation studies by thermogravimetry analysis and melt rheological analysis in N2 atmosphere, revealed that unlike xGnP, the addition of GO to the blends reduced their thermal stability leading to reduction of viscosity and elasticity of the blends. The behavior was attributed to the role of GO in enhancing the chain scission reactions. In the air atmosphere, the barrier properties of the graphenic materials prevailed. Compared to xGnP, the relatively well‐dispersed GO showed better barrier against oxygen and increased the thermo‐oxidative stability of the blends. Investigation of the hydrocatalytic degradation of developed systems, at different pH of 2 and 4, over a period of 40 days at 37 °C, showed that the amount of weight loss of the GO‐containing nanocomposite systems was higher than that of xGnP. The overall results of thermal, thermo‐oxidative, and hydrocatalytic degradation studies confirmed the prominent role of GO in the development of degradable PET‐based products. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48466.

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“…studied the thermal degradation behavior of PET/PLA system. They showed that the presence of a large amount of PLA in the blend reduces its thermal stability . Yang et al .…”

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Development of degradable poly(ethylene terephthalate)‐based nanocomposites with the aid of polylactic acid and graphenic materials: Thermal, thermo‐oxidative and hydrolytic degradation characteristics

Jafari

Khajavi

Goodarzi

et al. 2019

J of Applied Polymer Sci

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show abstract

“…[3][4][5] Even though there are many polymer-based filaments used in 3D printer such as acrylonitrile butadiene styrene terpolymer (ABS), polylactic acid (PLA), and polycarbonate (PC) or other thermosetting plastics, the most common one is PLA which is produced from renewable resources and biodegradable. 6,7 However, in the past five years, most literature works reported the processing techniques and printability of pure polymers which limited the polymer of 3D printed products in other textural appearances.…”

Section: Introductionmentioning

confidence: 99%

3D Printing Filaments Prepared from Modified Poly(Lactic Acid)/Teak Wood Flour Composites: An Investigation on the Particle Size Effects and Silane Coupling Agent Compatibilisation

Petchwattana¹,

Channuan²,

Naknaen³

et al. 2019

JPS

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“…Xia et al . performed a comprehensive study on thermal degradation and mechanical properties of PET/PLA blends and concluded that the PLA content of the blend has a great effect on the thermal stability and mechanical properties of the blends . Huerta et al .…”

Section: Introductionmentioning

confidence: 99%

Nonisothermal crystallization kinetic studies on melt processed poly(ethylene terephthalate)/polylactic acid blends containing graphene oxide and exfoliated graphite nanoplatelets

Jafari

Khajavi

Goodarzi

et al. 2019

J of Applied Polymer Sci

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Nonisothermal crystallization kinetics of poly(ethylene terephthalate)/polylactic acid (PET/PLA) (90/10 and 75/25 wt %/wt %) blend prepared by a melt mixing process in the presence of graphene oxide (GO) and exfoliated graphite nanoplatelets (xGnP) were investigated. The transmission electron microscope (TEM) results revealed that both the GO and xGnP were not inclined to the PLA phase, and the distribution of GO in the blend matrix was better than that of xGnP. The scanning electron microscope (SEM) results demonstrated that both the fillers showed compatibilizing effect and refined the morphology of PLA dispersed phase. The crystallinity and crystallization behavior of samples were studied by X‐ray diffraction (XRD) and multiple cooling rate Differential scanning calorimetry (DSC), respectively. The results showed that the degree of crystallinity and crystallization rate of PET was reduced by blending with PLA. Inclusion of the fillers to the blend further reduced the crystallinity while the crystallization rate was increased. Analysis based on Hoffman‐Lauritzen theory revealed that, compared to xGnP, the GO as a better nucleating agent could more effectively reduce lamella thickness and surface folding free energy of the nanocomposites. Crystallization kinetic studies by Jeziorny model revealed two levels of primary and secondary crystallization mechanisms for all samples. Moreover, activation energy of crystallization of the GO‐containing nanocomposites was lower than that of xGnP‐based systems. All the theoretical treatment and experimental results confirm that, compared to xGnP, the GO is more suitable filler and has stronger effect on enhancing the crystallization kinetic of the PET/PLA blends. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47569. HIGHLIGHTS Studied crystallization kinetics of PET/PLA blend containing xGnP and GO nanoplatelets Compared the role of xGnP and GO in crystallization kinetics of the system Analyzed the crystallization kinetics of the system by various models Determined the surface folding free energy of the developed systems GO‐based systems exhibited lower crystallization activation energy than that of the xGnP‐based systems

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Degradation behaviors, thermostability and mechanical properties of poly (ethylene terephthalate)/polylactic acid blends

Cited by 26 publications

References 33 publications

Development of degradable poly(ethylene terephthalate)‐based nanocomposites with the aid of polylactic acid and graphenic materials: Thermal, thermo‐oxidative and hydrolytic degradation characteristics

Development of degradable poly(ethylene terephthalate)‐based nanocomposites with the aid of polylactic acid and graphenic materials: Thermal, thermo‐oxidative and hydrolytic degradation characteristics

3D Printing Filaments Prepared from Modified Poly(Lactic Acid)/Teak Wood Flour Composites: An Investigation on the Particle Size Effects and Silane Coupling Agent Compatibilisation

Nonisothermal crystallization kinetic studies on melt processed poly(ethylene terephthalate)/polylactic acid blends containing graphene oxide and exfoliated graphite nanoplatelets

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