Iron oxide/PVA flexible magnetic tape engineered by microwave combustion and tape casting

Costa, Antônio Carlos Silva; Alves, Hugo P.A.; Corrêa, M.A.; Bohn, F.; Acchar, Wilson

doi:10.1016/j.matchemphys.2019.04.027

Cited by 16 publications

(8 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simultaneously, few studies have been carried out on the functionalization of ceramic substrates incorporated into industrial waste. For the production of this ceramic composite, we can use the tape casting technique 21,22 . This technique is efficient for the production of laminated substrates, in addition to designing thin and dense materials at a low cost 23,24 …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Silva

Alves

Freitas

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

High-temperature co-fired ceramic (HTCC) technology has attracted increasing attention due to its cost-benefit ratio and excellent working capacity in adverse temperature environments, 1,2,3 applying to components of gas turbine engines for high-temperature aircraft. 4,5 Typically, fibers ceramic matrices are commonly used in exhaust structures in these turbines, presenting irregular and low hardness surfaces, which generate insufficient resistance to wear and erosion. 6,7 Thus, it is necessary to develop ceramic substrates that serve as protective covers for these materials. 8,9 We commonly use alumina ceramic matrices as the material for substrates and packages because of their excellent mechanical and thermal properties, high dielectric strength, high resistivity, and thermal and chemical stability. 10,11 However, the use of pure alumina nanoparticles is limited for this purpose, considering that its sintering temperature for dense bodies occurs above 1350°C. 12,13 The incorporation of industrial waste such as from the sugarcane bagasse ash (SCBA) into the alumina substrate serves as a flux, decreasing the sintering temperature. 14,15 Generally, waste will have discarded outdoors, causing significant environmental problems, affecting flora, fauna, and people's

show abstract

Section: Introductionmentioning

confidence: 99%

“…For the production of this ceramic composite, we can use the tape casting technique. 21,22 This technique is efficient for the production of laminated substrates, in addition to designing thin and dense materials at a low cost. 23,24 Motivated by these features, we evaluated the effect of adding 10.0 wt% SCBA waste to Al 2 O 3 ceramic tape.…”

mentioning

confidence: 99%

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Silva

Alves

Freitas

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…30 However, there is minimal work on tape casting in PVA matrix. 31,32 The fillers used in these cases were clay and iron oxide. In addition to PVA, a few other polymers like liquid crystalline polymer nanocomposites 33 have also been prepared using tape casting.…”

Section: Introductionmentioning

confidence: 99%

“…However, owing to the elastic nature of polymers, the casting method required for polymer composites are different from that used in ceramics. [30][31][32]34 Thus, we report the processing of standalone PVA-GnP composite films using a modified casting method. Here the slurry preparation will be similar to the solution casting method.…”

Section: Introductionmentioning

confidence: 99%

Enhanced electrical conductivity and structural, mechanical characterization of standalone poly(vinyl alcohol)‐graphite nanoplatelets composite films

Janeesh

Meera

Shalom

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polymer based nanocomposites are gaining attention in various fields of science and technology due to its tunable properties. In this work, we report for the first time, the preparation and study on electrical and mechanical properties of standalone poly(vinyl alcohol) (PVA) based graphite nanoplatelet (GnP) composite films using modified film casting technique. Our modified tape casting method can produce films with uniform thickness, and uniform dispersion of filler deprived of pinholes. This technique is scalable for the mass production of polymer composite films for device application. We have obtained a significant enhancement in the electrical conductivity of 9 orders of magnitude and a maximum value of 0.143 S/m using PVA-GnP composites. To the best of our knowledge, this increase is the highest among the reported values for PVA-GnP composite films. However, a reduction in crystallinity and tensile strength can be seen with the addition of GnP fillers. The maximum tensile strength obtained for PVA-GnP composite films was 15 MPa and is adequate for use in electronic applications and devices. The effect of filler addition in PVA is discussed in detail.

show abstract

“…Among those environmental friendly materials, poly(vinyl alcohol) (PVA) is one of the important and widely studied biodegradable polymer. As a commercially available biodegradable polymer, PVA possesses low cost, excellent optical transparency, film formation, gas barrier, and mechanical properties and is extensively applied in the fields of package, biomedicine, filters, and so on. However, high ultraviolet (UV) radiation transmittance associated with PVA is not conducive to its application such as in the UV‐protective field.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen‐bonding assembly of heteropolyacid and poly(vinyl alcohol) for strong, flexible, and transparent UV‐protective films

Zhang

Chen

Tang

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Although many preparation approaches have been developed, it remains a huge challenge to achieve ultraviolet (UV)‐protection films that combine high transparency, excellent UV‐shielding, and mechanical properties. Herein, we demonstrate a facile and eco‐friendly process for fabricating strong, flexible, and transparent UV‐protective poly(vinyl alcohol) (PVA) films by exploiting silicomolybdic acid (SiMoA) as UV absorber and reinforcing phase. Fourier‐transform infrared analysis confirms the formation of strong hydrogen‐bonding interactions between PVA and SiMoA. The glass‐transition temperature, mechanical properties, and UV‐shielding stability of the UV‐protective PVA composite films obviously increase with increasing the content of SiMoA. By incorporation of only 2 wt % SiMoA, the UV‐protective PVA composite film can block more than 90% of UV light in the entire UV regions and retain high visible light transparency (up to 95%). Simultaneously, the UV‐protective PVA composite film presents excellent mechanical properties with a tensile strength of 65.2 MPa and an elongation at break of 172.6%, which are 72.0 and 69.5% higher than that of pristine PVA films. This work provides a simple but effective approach for creating strong, flexible, and transparent UV‐blocking polymeric materials via hydrogen‐bonding assembly, which are expected to have wide application prospects in UV‐protection field. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48813.

show abstract

Iron oxide/PVA flexible magnetic tape engineered by microwave combustion and tape casting

Cited by 16 publications

References 52 publications

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Enhanced electrical conductivity and structural, mechanical characterization of standalone poly(vinyl alcohol)‐graphite nanoplatelets composite films

Hydrogen‐bonding assembly of heteropolyacid and poly(vinyl alcohol) for strong, flexible, and transparent UV‐protective films

Contact Info

Product

Resources

About

Iron oxide/PVA flexible magnetic tape engineered by microwave combustion and tape casting

Cited by 16 publications

References 52 publications

Incorporating sugarcane bagasse ash into Al2O3 ceramic tapes

Incorporating sugarcane bagasse ash into Al2O3 ceramic tapes

Enhanced electrical conductivity and structural, mechanical characterization of standalone poly(vinyl alcohol)‐graphite nanoplatelets composite films

Hydrogen‐bonding assembly of heteropolyacid and poly(vinyl alcohol) for strong, flexible, and transparent UV‐protective films

Contact Info

Product

Resources

About

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes

Incorporating sugarcane bagasse ash into Al₂O₃ ceramic tapes