MWCNT-reinforced polyarylene ether nitrile nanocomposites

Wei, Renbo; Jin, Fei; Cheng, Long; Liu, Xiaobo

doi:10.1177/0954008316648006

Cited by 7 publications

(3 citation statements)

References 41 publications

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“…[9][10][11][12] According to the condensed state structure of PEN, it can be classified into amorphous PEN and crystalline PEN. 13,14 Up to now, the research of PEN mainly concentrated on amorphous PEN which can be obtained from diphenols, such as bisphenol A and phenolphthalein. Nevertheless, in comparison with amorphous PEN, the crystalline PEN possesses better thermodynamic and mechanical properties, including resorcinol-based PEN (RS-PEN) and hydroquinone-based PEN (HQ-PEN), which is rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and dielectric properties of crystalline poly(arylene ether nitrile) copolymers

Wang

et al. 2018

High Performance Polymers

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Poly(arylene ether nitrile) (PEN) copolymers (HQ/RS-PEN) containing different proportions of hydroquinone (HQ-PEN) block and resorcinol (RS-PEN) block were synthesized, and their crystalline, mechanical, and dielectric properties were investigated. Three HQ/RS-PEN copolymers with 10%, 20%, and 30% of RS-PEN blocks were prepared via condensation polymerization of HQ and RS with 2,6-dichlorobenzonitrile. The PEN copolymers were characterized and confirmed by Fourier transform infrared spectroscopy, intrinsic viscosity, and thermal analyses. With the addition of RS-PEN block, the flexibility of PEN copolymers was increased. In addition, even though the high loading content of RS-PEN block was incorporated, the PEN copolymers still exhibited relatively high dielectric constant, whereas the dielectric loss decreased. Furthermore, to investigate the effect of treatment time and temperature on the physical properties of crystalline PEN copolymers, HQ/RS-PEN20 was isothermally treated at different temperatures (280°C, 300°C, 310°C, 320°C, and 330°C) for a constant time and at a constant time for different hours (1, 2, 3, 4, and 5 h). After the optimization of the crystallization of HQ/RS-PEN polymer, excellent mechanical and dielectric properties of copolymers were obtained. The results showed that when isothermally treated at 320°C for 2 h, the HQ/RS-PEN20 showed optimal properties of tensile strength of 117.6 MPa and dielectric constant of 4.07 at 1 kHz.

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Section: Introductionmentioning

confidence: 99%

Mechanical and dielectric properties of crystalline poly(arylene ether nitrile) copolymers

Wang

et al. 2018

High Performance Polymers

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“…2 In addition, PEN is a kind of typical aromatic ring polymer materials with pendant nitrile groups, and the pendant nitrile group in PEN seems to promote the adhesion of the main chain of this polymer to many substrates. [3][4][5][6][7] Moreover, the pendant nitrile group also increases the polarity of PEN. 8 The increasing polarity results in the high dielectric constant of PEN, which leads to the application of PEN as dielectric and packaging materials in the microelectronics industry.…”

Section: Introductionmentioning

confidence: 99%

Preparation and physical properties of polyarylene ether nitrile and polyarylene ether sulfone random copolymers

Tong

et al. 2018

High Performance Polymers

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Polyarylene ether nitrile sulfone (PENS) random copolymers consisting of polyarylene ether nitrile (PEN) and polyarylene ether sulfone (PES) were prepared from bisphenol A, bis(4-chlorophenyl)sulfone, and 2,6-dichlorobenzonitrile by the nucleophilic aromatic substitution polymerization. The structure of the PENS random copolymers was confirmed by Fourier transform infrared spectrometer and 1H nuclear magnetic resonance, and the properties of the PENS copolymers were investigated by thermal analysis (differential scanning calorimetry and thermogravimetric analysis), inherent viscosity measurements, mechanical tests, and dielectric tests. The samples showed excellent thermal stability, with the 5% weight loss temperature ( T 5%) greater than 480°C under nitrogen and glass transition temperature ( T g) greater than 180°C. The tensile strength, tensile modulus, and elongation at break of the PENS copolymers were improved with the increase of the PEN content, indicating the better mechanical property of PEN than that of PES. The dielectric constant and dielectric strength of the PENS random copolymers were also enhanced with the increase of the PEN content. As a result, PENS100 showed the highest energy storage density, which is 0.68 J/cm3. PES showed better thermal properties while worse mechanical and dielectric properties compared with PEN. PENS copolymers combined the excellent properties of PEN and PES due to the compatibility between them.

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“…Many engineering polymers have been developed in recent years for their significant potential applications in various military and civilian fields due to their excellent mechanical and thermal properties and ease of processing . To further improve their properties, additives including carbon nanotubes, graphene, titanium dioxide, polyaniline, barium titanate and others are usually introduced to form polymer‐based composite materials . Polyarylene ether nitriles (PENs), as high‐performance thermoplastic engineering resins, are well known for their outstanding properties such as high thermal stability and radiation resistance, excellent mechanical properties and chemical inertia, and have been used at elevated temperatures and in aggressive chemical environments encountered in automotive and electric applications .…”

Section: Introductionmentioning

confidence: 99%

Synergistic enhancement of mechanical, crystalline and dielectric properties of polyarylene ether nitrile‐based nanocomposites by unidirectional hot stretching–quenching

Mao

Tang

et al. 2017

Polymer International

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Copper tetra-amine phthalocyanine (NH 2 -CuPc) was grafted onto barium titanate (BaTiO 3 ) whose surface was modified by carboxylic polyarylene ether nitrile (CPEN) to afford a nano-filler (CPEN-f-BaTiO 3 @NH 2 -CuPc). Through a solution-casting method combined with ultrasonic dispersion technology, the obtained CPEN-f-BaTiO 3 @NH 2 -CuPc was successfully incorporated into biphenyl polyarylene ether nitrile (BP-PEN) matrix to prepare nanocomposite films with various mass fractions of CPEN-f-BaTiO 3 @NH 2 - CuPc (0, 2.0, 5.0, 10.0 and 20.0 wt%). After that, the nanocomposite films were unidirectionally stretched with various stretching ratios at 280 ∘ C. All the nanocomposite films show excellent mechanical and thermal stability, which is provided by the BP-PEN matrix. The crystallinity and mechanical, thermal and dielectric properties of the nanocomposite films are efficiently enhanced after the unidirectional hot-stretching process. The results show that hot-stretching is a useful method for improving the mechanical and crystallization behaviors as well as the thermal and dielectric properties of the nanocomposite films.

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MWCNT-reinforced polyarylene ether nitrile nanocomposites

Cited by 7 publications

References 41 publications

Mechanical and dielectric properties of crystalline poly(arylene ether nitrile) copolymers

Mechanical and dielectric properties of crystalline poly(arylene ether nitrile) copolymers

Preparation and physical properties of polyarylene ether nitrile and polyarylene ether sulfone random copolymers

Synergistic enhancement of mechanical, crystalline and dielectric properties of polyarylene ether nitrile‐based nanocomposites by unidirectional hot stretching–quenching

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