Electrospinning of cellulose nanofibers mat for laminated epoxy composite production

Jahanbaani, Abdol Rasool; Behzad, Tayebeh; Borhani, Sedigheh; Darvanjooghi, Mohammad Hossein Karimi

doi:10.1007/s12221-016-6424-9

Cited by 41 publications

(21 citation statements)

References 18 publications

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“…However, the poor mechanical properties of the nanofibres restrict their application in liquid filtration [ 12 , 13 ]. To overcome this problem, various attempts have been made, such as blending of the polymers [ 14 , 15 , 16 , 17 ], using epoxy composites [ 18 ], reinforced with nanomaterials [ 19 , 20 , 21 ], dip-coating [ 22 ], self-reinforcing methods [ 23 ], thermal lamination [ 24 , 25 ], etc. Silicon carbide (SiC) nanofibres were reinforced with an epoxy matrix cured with an anhydride hardener.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Roche

Yalçinkaya

2018

Nanomaterials

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Membranes are considered as a promising technology for separation and filtration processes. Here, novel polyvinylidene fluoride (PVDF) nanofibrous multilayer membranes were fabricated by wire-based industrial electrospinning equipment following by a lamination process. The lamination process was optimised under various applied temperature, force of lamination, and lamination time. Air permeability and burst-pressure tests were run to determine the optimum membranes for filtration application. The structures of the prepared membranes were characterised by scanning electron microscopy and pore-size analysis. The hydrophilic properties of the membranes were evaluated using water contact angle measurement, and the mechanical strength of the membranes was analysed. Air and water filtration tests were run to find the possible application of prepared membranes. The air filtration results showed that membranes had high filtration efficiencies: Over 99.00% for PM2.5, and PM0.1. The water filtration results indicated that permeability of the membranes changed from 288 to 3275 L/m2hbar. The successful preparation of such an interesting material may provide a new approach for the design and development of electrospun filter membranes.

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Section: Introductionmentioning

confidence: 99%

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Roche

Yalçinkaya

2018

Nanomaterials

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“…In another method, lamination was achieved using an epoxy composite. In this method, an electrospun layer was laid on the epoxy/curing agent in a mold and then the curing process was performed for a period of 16 h [ 22 ]. Nanofiber reinforced nanomaterials such as carbon nanotubes and graphene represent another route for improving the mechanical strength of nanofibers.…”

Section: Introductionmentioning

confidence: 99%

Effect of Laminating Pressure on Polymeric Multilayer Nanofibrous Membranes for Liquid Filtration

Yalçinkaya

Hrůza

2018

Nanomaterials

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In the new century, electrospun nanofibrous webs are widely employed in various applications due to their specific surface area and porous structure with narrow pore size. The mechanical properties have a major influence on the applications of nanofiber webs. Lamination technology is an important method for improving the mechanical strength of nanofiber webs. In this study, the influence of laminating pressure on the properties of polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF) nanofibers/laminate was investigated. Heat-press lamination was carried out at three different pressures, and the surface morphologies of the multilayer nanofibrous membranes were observed under an optical microscope. In addition, air permeability, water filtration, and contact angle experiments were performed to examine the effect of laminating pressure on the breathability, water permeability and surface wettability of multilayer nanofibrous membranes. A bursting strength test was developed and applied to measure the maximum bursting pressure of the nanofibers from the laminated surface. A water filtration test was performed using a cross-flow unit. Based on the results of the tests, the optimum laminating pressure was determined for both PAN and PVDF multilayer nanofibrous membranes to prepare suitable microfilters for liquid filtration.

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“…It was found that during knitting, both sorts of fibers are mixed, resulting in a certain sheltering of the nanofibers by the macroscopic cotton fibers. Another possible method is laminating the fibers, e.g., by firstly electrospinning them and afterwards bonding them on the surface of a resin which is afterwards cured [ 22 ] or by spinning them directly on an aluminum foil on which they stick rigidly [ 23 ]. Hot-pressing a composite from a polymer membrane and polymer as well as SiO 2 nanoparticles resulted in a significant increase of the tensile strength by melting the bond points of the nanofibers and thus linking neighboring fibers [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Preliminary Study of Ultrasonic Welding as a Joining Process for Electrospun Nanofiber Mats

et al. 2018

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Electrospinning can be used to create nanofiber mats for diverse applications, from wound dressings and tissue engineering to filters for medical and biotechnological applications. In most of these applications, it is necessary to fix the nanofiber mat on a macroscopic textile fabric, on another nanofiber mat or within a frame to keep it at the desired position. Due to their extremely low thickness and areal mass, however, nanofiber mats are easily destroyed by sewing, and in several situations glued bonds are too thick and not flexible enough. Here we report on ultrasonic welding of polyacrylonitrile nanofiber mats, suggesting this method as a joining process without destruction of the mat morphology for thermoplastic nanofiber mats. A variety of welding patterns results in different adhesion forces between both joined nanofiber mats and different failure mechanisms, with some welding patterns enabling bonding stronger than the mats themselves. Our findings show that ultrasonic welding is a possible joining method for polyacrylonitrile nanofiber mats.

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Electrospinning of cellulose nanofibers mat for laminated epoxy composite production

Cited by 41 publications

References 18 publications

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Effect of Laminating Pressure on Polymeric Multilayer Nanofibrous Membranes for Liquid Filtration

Preliminary Study of Ultrasonic Welding as a Joining Process for Electrospun Nanofiber Mats

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