Structure, molecular orientation, and resultant mechanical properties in core/ sheath poly(lactic acid)/polypropylene composites

Arvidson, Sara A.; Wong, Ka C.; Gorga, Russell E.; Khan, Saad A.

doi:10.1016/j.polymer.2011.12.042

Cited by 36 publications

(27 citation statements)

References 53 publications

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“…She indicated the weak interface between PP and PLA. Then, Arvidson et al . developed melt spinning and spunbond fiber in a core/sheath configuration using PP and PLA polymer.…”

Section: Introductionsupporting

confidence: 86%

Structural characterization of polypropylene/poly(lactic acid) bicomponent meltblown

Rungiah

Ruamsuk

Vroman

et al. 2016

J of Applied Polymer Sci

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The bicomponent meltblown process offers to associate two polymers in the same fiber generating fibrous media with new properties. In this study, we associate polypropylene (PP) and poly(lactic acid) (PLA), from renewable sources, polymers. The influence of primary air flow rate and the structural properties of the PP/PLA bicomponent meltblown are compared to PP and PLA monocomponent meltblown. The structural properties include fiber morphology and diameter, packing density, permeability, thermal shrinkage and crystallization. The results relate that the PP/PLA bicomponent meltblown fiber diameters are thinner than those of PLA monocomponent. Moreover, it has higher resistance to thermal shrinkage compared to PP monocomponent meltblown. The packing density and permeability are not affected by the association of PP and PLA due to low crimp effect. Two different filament formations of PP/PLA bicomponent meltblown at low and high primary air flow rate have also been observed. Lastly, this study illustrates that PP and PLA association is viable, showing the production of PP/PLA bicomponent microfiber and limited thermal shrinkage at high temperature. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44540.

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“…She indicated the weak interface between PP and PLA. Then, Arvidson et al . developed melt spinning and spunbond fiber in a core/sheath configuration using PP and PLA polymer.…”

Section: Introductionsupporting

confidence: 86%

Structural characterization of polypropylene/poly(lactic acid) bicomponent meltblown

Rungiah

Ruamsuk

Vroman

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Today, the development and production of biodegradable plastics is one of the appropriate ways to control or reduce the accumulation of nonbiodegradable plastics to preserve the limited resources of fossil fuels and also to reduce the ecosystem destruction. [1][2][3][4][5][6] Because of its biocompatibility and inherent biodegradability, polylactic acid (PLA) is one of the most important prominent biodegradable biopolymers that has found extensive applications in the various medical, packaging, and textile industries. 7,8 The main drawback of this polymer returns to its brittleness, which diminishes its widespread application.…”

Section: Introductionmentioning

confidence: 99%

ZnO nanoparticles as chain elasticity reducer and structural elasticity enhancer: Correlating the degradating role and localization of ZnO with the morphological and mechanical properties of PLA/PP/ZnO nanocomposite

Keshavarzi

Babaei

Goudarzi

et al. 2019

Polymers for Advanced Techs

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The main purpose of this study was to investigate the effect of zinc oxide (ZnO) nanoparticles on the morphological, mechanical, thermal, and rheological properties of PLA/PP blend. In this regard, nanocomposites containing 1, 3, and 5 wt% of ZnO nanoparticles were prepared by melt mixing. In addition, three different mixing procedures were adopted to study their effects on the microstructure of nanocomposites. The rheological behaviors demonstrated a higher elasticity and less compatibility for two phases in the case of nanocomposites containing nanoparticles in harmony with the morphological observations. Accordingly, it was correlated to the elasticity originating from the interphase, anticipated coalescence of dispersed particles as a result of degradation of PLA chains triggered by ZnO nanoparticles (ZnO‐NPs) and also agglomeration of ZnO‐NPs depending on the content of nanoparticles and chosen mixing procedure. It was also found that mixing method puts a remarkable influence on the microstructure and rheological behavior of nanocomposites. Results of mechanical characterizations and thermogravimetric analysis (TGA) also confirmed the degradation induced by ZnO nanoparticles.

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“…Detailed description of process and the fibers produced are shown in Table . Fiber diameters given in Table were measured microscopically with a Nikon SMZ1000 stereo‐zoom microscope and spinning speeds are controlled by process air pressure in the aspirator and calculated from polymer throughput and fiber diameter …”

Section: Methodsmentioning

confidence: 99%

Process–structure–property relationship of melt spun poly(lactic acid) fibers produced in the spunbond process

Shim

Pourdeyhimi

Shiffler

2016

J of Applied Polymer Sci

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We report on the process–structure–property relationships for Poly(lactic acid) (PLA) filaments produced through the spunbond process. The influence of spinning speed, polymer throughput, and draw ratio on crystallinity and birefringence of fibers were evaluated. We established that increasing spinning speed increases crystallinity and birefringence of fibers. We also investigate the role of fiber structures on fiber tensile properties—breaking tensile strength, strain at break, initial modulus, and natural draw ratio. An increase in spinning speed leads to a higher breaking tensile strength, higher initial modulus and lower strain at break. We have shown an almost linear relationship between breaking tensile strength of PLA fibers and birefringence. This indicates that improved tensile properties at high spinning speeds can be attributed to enhanced molecular orientation. The dependency of fiber breaking tensile strength and strain at break on spun orientation were explained with natural draw ratio, as a measure of spun orientation. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44225.

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Structure, molecular orientation, and resultant mechanical properties in core/ sheath poly(lactic acid)/polypropylene composites

Cited by 36 publications

References 53 publications

Structural characterization of polypropylene/poly(lactic acid) bicomponent meltblown

Structural characterization of polypropylene/poly(lactic acid) bicomponent meltblown

ZnO nanoparticles as chain elasticity reducer and structural elasticity enhancer: Correlating the degradating role and localization of ZnO with the morphological and mechanical properties of PLA/PP/ZnO nanocomposite

Process–structure–property relationship of melt spun poly(lactic acid) fibers produced in the spunbond process

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