Superior mechanical enhancement of epoxy composites reinforced by polyimide nanofibers via a vacuum-assisted hot-pressing

Chen, Yu; Sui, Ling; Fang, Hong; Ding, Chenhui; Li, Zhenkai; Jiang, Shaohua; Hou, Haoqing

doi:10.1016/j.compscitech.2019.02.012

Cited by 74 publications

(32 citation statements)

References 59 publications

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“…Recently, multifunctional air filtration membranes [11,12,13] were also successfully developed through electrospinning. In the field of structural materials, electrospun nanofibers with excellent thermal and mechanical properties were successfully obtained for use as reinforcements of polymers [14,15].…”

Section: Introductionmentioning

confidence: 99%

Water Resistant Self-Extinguishing Low Frequency Soundproofing Polyvinylpyrrolidone Based Electrospun Blankets

et al. 2019

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This paper shows that an eco-friendly electrospinning process allows us to produce water resistant sound absorbers with reduced thickness and excellent sound-absorption properties in the low and medium frequency range (250–1600 Hz) for which which human sensitivity is high and traditional materials struggle to match, that also pass the fire tests which are mandatory in many engineering areas. The structure and composition were studied through Scanning Electron Microscopy (SEM), Fourier Transform InfraRed (FTIR) Spectroscopy and ThermoGravimetric Analysis (TGA). The density, porosity and flow resistivity were measured. Preliminary investigation of the thermal conductivity through Differential Scanning Calorimetry (DSC) shows that they have perspectives also for thermal insulation. The experimental results indicate that the achievements are to be ascribed to the chemical nature of Polyvinylpyrrolidone (PVP). PVP is, in fact, a polymeric lactam with a side polar group that may be easily released by a thermooxidative process. The side polar groups allow for using ethanol for electrospinning than relying on a good dispersion of silica gel particles. The silica particles dimensionally stabilize the mats upon thermal treatments and confer water resistance while strongly contributing to the self-extinguishing property of the materials.

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Section: Introductionmentioning

confidence: 99%

Water Resistant Self-Extinguishing Low Frequency Soundproofing Polyvinylpyrrolidone Based Electrospun Blankets

et al. 2019

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“…Figure 2 shows the FT-IR spectra of the thioether bismaleimide resin (1SBMI) and 1SBT resin. As can be seen from Figure 2, the peaks at 1720 cm −1 and 1780 cm −1 [25,26,27] could be attributed to the stretching frequency of imide in the SBMI resin. The stretching frequency of the C–S–C bond was at 1220 to 1280 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Thioetherimide-Modified Cyanate Ester Resin with Better Molding Performance for Glass Fiber Reinforced Composites

Dai

Jiang

2019

Polymers

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Cyanate ester (CE) resins with higher heat resistance, lower coefficients of thermal expansion (CTEs), and lower water absorption ratios are highly desired in printed circuit boards (PCBs). In this work, a CE was modified by copolymerization with a long-chain thioether bismaleimide (SBMI) to form a thioetherimide-modified CE (SBT). The results indicated that SBT had a wider processing window and better processing properties than a common bismaleimide-modified CE resin (MBMI). After molding with a glass fiber cloth, the composites (GSBT) exhibited moisture adsorption in the range of 1.4%–2.0%, high tensile strength in the range of 311–439 MPa, good mechanical retention of 70%–85% even at 200 °C, and good dimension stability, with coefficients of thermal expansion in the range of 17.3–18.6 (×10−6 m/°C). Such GSBT composites with superior properties would be good candidates for PCB applications.

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“…Rather than traditional fibers, the smart ones, which are endowed with multi-functionality, are highly promising branch due to the interact ability with external environment. Electrospinning, as a versatile technology, opens a new window for smart fibers and has attracted a large amount of attention in the past few decades due to the facile way to produce micro- and even sub-nano-scale fibers featuring excellent mechanical properties especially flexibility, large specific surface area, high aspect ratio, surface functionality, low density, variable fiber formation from one dimension (1D) to three dimension (3D), and high porosity and their broad applications [ [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] ]. The charged Taylor Cone from the solution formed at the tip of the needle, which is subjected to the electric static force in an electric field, is stretched and flying towards the counter electrode or collector.…”

Section: Introductionmentioning

confidence: 99%

A review of smart electrospun fibers toward textiles

Liu

Ding

et al. 2020

Composites Communications

142

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Superior mechanical enhancement of epoxy composites reinforced by polyimide nanofibers via a vacuum-assisted hot-pressing

Cited by 74 publications

References 59 publications

Water Resistant Self-Extinguishing Low Frequency Soundproofing Polyvinylpyrrolidone Based Electrospun Blankets

Water Resistant Self-Extinguishing Low Frequency Soundproofing Polyvinylpyrrolidone Based Electrospun Blankets

Thioetherimide-Modified Cyanate Ester Resin with Better Molding Performance for Glass Fiber Reinforced Composites

A review of smart electrospun fibers toward textiles

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