Effects of compatibilizers on the mechanical properties of ABS/PLA composites

Abstract. Polylactic acid (PLA), one of the well-known biodegradable polyesters, has been studied extensively for tissue engineering and drug delivery systems, and it was also used widely in human medicine. A new method to synthesize PLA (ring-opening polymerization), which allowed the economical production of a high molecular weight PLA polymer, broadened its applications, and this processing would be a potential substitute for petroleum-based products. This review described the principles of the polymerization reactions of PLA and, then, outlined the various materials properties affecting the performance of PLA polymer, such as rheological, mechanical, thermal, and barrier properties as well as the processing technologies which were used to fabricate products based on PLA. In addition, the biodegradation processes of products which were shaped from PLA were discussed and reviewed. The potential applications of PLA in the medical fields, such as tissue engineering, wound management, drugs delivery, and orthopedic devices, were also highlighted.

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“…The results showed that SAN-g-MAH was the most effective compatibilizer [35]. Wang et al [36] also used PC to toughen PLA.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Properties and medical applications of polylactic acid: A review

Hamad¹,

Kaseem²,

Yang

et al. 2015

Express Polym. Lett.

574

306

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“…As a biodegradable thermoplastic, poly(lactic acid) (PLA), derived from starches and sugars, has attracted much attention from industry and academia . Its applications have extended from initial packaging materials to the electronics, automobiles, and other fields . So it is necessary and urgent to improve its combustion behavior.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of phospholipidated β‐cyclodextrin and its application for flame‐retardant poly(lactic acid) with ammonium polyphosphate

Zhang

Han

Fang

2017

J of Applied Polymer Sci

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In this study, phospholipidated b-cyclodextrin (PCD) was obtained by the condensation between b-cyclodextrin and phenyl phosphonic acid dichloride, which was characterized by Fourier transform infrared (FTIR) spectra, 1 H-NMR, and thermogravimetric analysis (TGA). The thermal stability and flame retardancy of the poly(lactic acid) (PLA) blends [PLA-ammonium polyphosphate (APP)-PCD] were measured by TGA coupled to FTIR spectroscopy, vertical burning test (UL-94), limiting oxygen index (LOI), and cone calorimetry tests. The results show that the mass ratio and loading amount of APP and PCD affected the properties of PLA. When the loading of APP and PCD was 30 wt % and the mass ratio of APP to PCD was 5:1, the highest LOI value of 42.6% (that of neat PLA was 19.7%) and a UL-94 V0 rating were achieved, and the reduction of the total heat release was greater than 80%. Even when the total amount of APP and PCD was decreased to 20 wt % with the same mass ratio, the flameretardant PLA still can achieved a UL-94 V0 rating. The improved performance was explained by the formation of an intumescent, continuous, contact char layer. Moreover, the reaction between APP and PCD contributed to the improvement of the thermal stability of the char residue.

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“…used SAN‐GMA at 20 wt % loading along with a heat stabilizer to increase the toughness to 158 J/m. They concluded that the high rubber content ABS and the heat stabilizer enhanced the dispersion to increase the impact strength . Dong et al .…”

Section: Introductionmentioning

confidence: 99%

Statistical optimization of compatibilized blends of poly(lactic acid) and acrylonitrile butadiene styrene

Vadori

Misra

Mohanty

2016

J of Applied Polymer Sci

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A mixture design of experiment and subsequent regression analysis was used to study the effects of two additives on blends of poly(lactic acid) (PLA) and acrylonitrile butadiene styrene (ABS). Statistical analysis was used to find a blend with a balance of high toughness, strength, and stiffness. The blends were prepared by lab scale reactive extrusion and injection molding. Leastsquare regression models of statistically significant effects were built by analysis of variance (ANOVA). Using these models, optimization studies were used to study the predicted maximum values of each measurement criteria. Very large increases were seen in the measured responses with relatively small changes in additive content. Compared to the neat blend without additives, the impact strength was increased by over 600%, the elongation at break was increased by over 1000%, the tensile strength increased by 11%, and the tensile modulus increased by over 7%. Surprisingly, the composite optimization, which included all measured criteria, occurred at a point that allowed all four criteria values to remain very close to their individual maximums. The result is a partially biobased blend that does not sacrifice strength or stiffness to achieve very high toughness.

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Effects of compatibilizers on the mechanical properties of ABS/PLA composites

Cited by 65 publications

References 19 publications

Properties and medical applications of polylactic acid: A review

Properties and medical applications of polylactic acid: A review

Synthesis of phospholipidated β‐cyclodextrin and its application for flame‐retardant poly(lactic acid) with ammonium polyphosphate

Statistical optimization of compatibilized blends of poly(lactic acid) and acrylonitrile butadiene styrene

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