High‐efficiency preparation of polypropylene nanofiber by melt differential centrifugal electrospinning

Liu, Yujian; Tan, Jing; Yu, Shaoyang; Yousefzadeh, Maryam; Lyu, Tingting; Jiao, Zhiwei; Li, Haoyi; Ramakrishna, Seeram

doi:10.1002/app.48299

Cited by 36 publications

(32 citation statements)

References 20 publications

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“…In this regard, there are a few works devoted to electrospinning from polypropylene solutions: it is reported that nonwovens were produced from solutions in decalin [ 9 ] or from mixtures of solvents based on decalin [ 10 ] and cyclohexane [ 11 ], while heating the solution to 70–130 °C was required to dissolve the polymer. On the other hand, it is possible to produce fibrous polypropylene materials from the melt by electrospinning [ 2 , 3 , 4 , 5 , 7 , 8 , 9 , 12 , 13 , 14 ], melt-blowing [ 1 , 15 ], centrifugal spinning [ 16 ] or by combining several of these methods [ 17 ]. Moreover, nonwovens can be produced, not only from polypropylene homopolymers, but also from its copolymers [ 18 ] and blends with other polymers [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Nonwoven Materials Produced by Melt Electrospinning of Polypropylene Filled with Calcium Carbonate

et al. 2020

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Nowadays, polypropylene-based nonwovens are used in many areas, from filtration to medicine. One of the methods for obtaining such materials is melt electrospinning. In some cases, it is especially interesting to produce composite fibers with a high degree of filling. In this work, the influence of the filling degree of isotactic polypropylene with calcium carbonate on the structure and properties of nonwoven materials obtained by melt electrospinning was studied. It was shown that electrospinning is possible, even at a filler content of 50%, while the average diameter of the fibers increases with the growth in the content of calcium carbonate. The addition of sodium stearate significantly reduces the diameter of the fibers (from 10–65 to 2–10 microns) due to reducing viscosity and increasing the electrical conductivity of the melt. Wide-angle X-ray diffraction analysis and IR spectroscopy reveal that the initial polymer and composites are characterized by the presence of stable α-form crystals, while nonwovens show a predominance of smectic mesophase. The addition of calcium carbonate leads to an increase in the hydrophobicity of the composite films, the addition of sodium stearate results in a decrease of hydrophobicity, while all nonwovens demonstrate superhydrophobic properties.

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Section: Introductionmentioning

confidence: 99%

Nonwoven Materials Produced by Melt Electrospinning of Polypropylene Filled with Calcium Carbonate

et al. 2020

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“…So far, the preparation method for nanofibers based on electrospinning technology has been well developed. According to the electrospinning raw materials, it can be divided into melt electrospinning [46][47][48], solution electrospinning [49,50] and mixed electrospinning [51][52][53]. According to the design of the spray head, it can be classified as needleless electrospinning [54][55][56], coaxial or triaxial electrospinning [57][58][59][60][61][62], multi-jet electrospinning [63][64][65], etc.…”

Section: Strategies For the Preparation Of Functional Electrospun Matmentioning

confidence: 99%

Electrospun Functional Materials toward Food Packaging Applications: A Review

et al. 2020

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Electrospinning is an effective and versatile method to prepare continuous polymer nanofibers and nonwovens that exhibit excellent properties such as high molecular orientation, high porosity and large specific surface area. Benefitting from these outstanding and intriguing features, electrospun nanofibers have been employed as a promising candidate for the fabrication of food packaging materials. Actually, the electrospun nanofibers used in food packaging must possess biocompatibility and low toxicity. In addition, in order to maintain the quality of food and extend its shelf life, food packaging materials also need to have certain functionality. Herein, in this timely review, functional materials produced from electrospinning toward food packaging are highlighted. At first, various strategies for the preparation of polymer electrospun fiber are introduced, then the characteristics of different packaging films and their successful applications in food packaging are summarized, including degradable materials, superhydrophobic materials, edible materials, antibacterial materials and high barrier materials. Finally, the future perspective and key challenges of polymer electrospun nanofibers for food packaging are also discussed. Hopefully, this review would provide a fundamental insight into the development of electrospun functional materials with high performance for food packaging.

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“…This driving force is exacerbated when an electric field is applied. Several papers have addressed this topic, and it seems to be the only area where there is a consensus—regardless of whether it is solution or melt electrospinning, gravity is so weak compared with the centrifugal force that its effects are negligible [ 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 ].…”

Section: State Of the Art—impact Of Apparatus Orientation In Electmentioning

confidence: 99%

Impact of Apparatus Orientation and Gravity in Electrospinning—A Review of Empirical Evidence

2020

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Electrospinning is a versatile fibre fabrication method with applications from textile to tissue engineering. Despite the appearance that the influencing parameters of electrospinning are fully understood, the effect of setup orientation has not been thoroughly investigated. With current burgeoning interest in modified and specialised electrospinning apparatus, it is timely to review the impact of this seldom-considered parameter. Apparatus configuration plays a major role in the morphology of the final product. The primary difference between spinning setups is the degree to which the electrical force and gravitational force contribute. Since gravity is much lower in magnitude when compared with the electrostatic force, it is thought to have no significant effect on the spinning process. But the shape of the Taylor cone, jet trajectory, fibre diameter, fibre diameter distribution, and overall spinning efficiency are all influenced by it. In this review paper, we discuss all these developments and more. Furthermore, because many research groups build their own electrospinning apparatus, it would be prudent to consider this aspect as particular orientations are more suitable for certain applications.

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High‐efficiency preparation of polypropylene nanofiber by melt differential centrifugal electrospinning

Cited by 36 publications

References 20 publications

Nonwoven Materials Produced by Melt Electrospinning of Polypropylene Filled with Calcium Carbonate

Nonwoven Materials Produced by Melt Electrospinning of Polypropylene Filled with Calcium Carbonate

Electrospun Functional Materials toward Food Packaging Applications: A Review

Impact of Apparatus Orientation and Gravity in Electrospinning—A Review of Empirical Evidence

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