Enhanced crystallinity, mechanical and dielectric properties of biphenyl polyarylene ether nitriles by unidirectional hot-stretching

Huang, Xu; Pu, Zejun; Jia, Kun; Liu, Xiaobo

doi:10.1007/s10965-015-0859-3

Cited by 27 publications

(26 citation statements)

References 26 publications

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“…When the packing density is high, the inorganic filler particles in the composites contact closely with each other to boost the thermal conductivity. When the relative crystallinity is high, the vibration of increased crystal lattices can also enhance the thermal conductivity …”

Section: Resultsmentioning

confidence: 99%

Effect of arrangement of nano and micro barium titanate (BaTiO₃) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO₃

Zhang

2018

J Polym Sci B Polym Phys

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The aim of this study is to improve the dielectric and mechanical properties of HDPE/BaTiO3 composites by binary BaTiO3 particles, when the volume fraction of BaTiO3 is constant. In this study, it was found that the pack density of binary BaTiO3 particles in HDPE/BaTiO3 composite relies on particle ratio and volume fraction of small particles. It is found that the addition of 50 vol % 1600 nm BaTiO3 particles can boost the dielectric constant of HDPE control from 2 to 30 (14 times higher) at 40 Hz and 19 (8.5 times higher) at 40 MHz, respectively. When the particle ratio was 4, the substitution of 10 vol % 1600 nm BaTiO3 particles by 10 vol % 400 nm BaTiO3 particles can further enhance the dielectric constant of HDPE/L‐BT (10/10) from 30 to 50 (67% increase) at 40 Hz and from 19 to 42 (121% increase) at 40 MHz, respectively, without greatly influencing the volume resistivity of HDPE composites. In addition, the thermal conductivity of HDPE with binary BaTiO3 particles were all above 2.0 W/(m•K). © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 1101–1108

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Section: Resultsmentioning

confidence: 99%

Effect of arrangement of nano and micro barium titanate (BaTiO₃) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO₃

Zhang

2018

J Polym Sci B Polym Phys

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“…Finally, the intrinsic viscosity can be obtained by using eq. :

[η] = \frac{\sqrt{2 \times (η_{s p} - \ln η_{r})}}{c}

where [η] is intrinsic viscosity, η sp is specific viscosity, η r is relative viscosity, c is concentration . The value of the intrinsic viscosity was the average value of three measurements.…”

Section: Methodsmentioning

confidence: 99%

Crystallinity of poly(arylene ether nitrile) copolymers containing hydroquinone and bisphenol A segments

Tong

Wang

et al. 2018

J of Applied Polymer Sci

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The hydroquinone (HQ) and bisphenol A (BPA) type poly(arylene ether nitrile) (PEN) (HQ/BPA-PEN) were synthesized through nucleophilic aromatic substitution polymerization from HQ, BPA, and 2,6-dichlorobenzonitrile (DCBN). The prepared copolymers were characterized by intrinsic viscosity, Fourier transform infrared (FTIR), and dynamic rheological analysis. The properties of resultant copolymers were studied by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and mechanical testing. The results showed that the PEN copolymers exhibited crystallization performance with excellent thermal and mechanical properties. HQ/BPA-PEN10 was made into films by solution-casting process and then were treated at different temperatures (200, 260, 280, 300, 310, and 320 8C) for different times (1, 2, 3, 4, and 5 h) to investigate the crystallinity. Results showed that when isothermal treatment temperature is 310 8C and isothermal treating time is 4 h, HQ/BPA-PEN10 showed best properties. At this condition, the melting enthalpy, crystallinity, tensile strength, and elongation at break of the sample is 17.7 J/g, 14.11%, 132.9 MPa, and 6.1%, respectively.

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“…All other reagents were commercially available products and used as received without further purication. CPEN and PEN were synthesized via nucleophilic aromatic substitution polymerization using a previously reported method, 26,27 and the corresponding synthetic routes of PEN are shown in Fig. S1.…”

Section: Methodsmentioning

confidence: 99%

Double-layer core/shell-structured nanoparticles in polyarylene ether nitrile-based nanocomposites as flexible dielectric materials

Han

Wang

et al. 2017

RSC Adv.

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Enhanced crystallinity, mechanical and dielectric properties of biphenyl polyarylene ether nitriles by unidirectional hot-stretching

Cited by 27 publications

References 26 publications

Effect of arrangement of nano and micro barium titanate (BaTiO₃) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO₃

Effect of arrangement of nano and micro barium titanate (BaTiO₃) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO₃

Crystallinity of poly(arylene ether nitrile) copolymers containing hydroquinone and bisphenol A segments

Double-layer core/shell-structured nanoparticles in polyarylene ether nitrile-based nanocomposites as flexible dielectric materials

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Enhanced crystallinity, mechanical and dielectric properties of biphenyl polyarylene ether nitriles by unidirectional hot-stretching

Cited by 27 publications

References 26 publications

Effect of arrangement of nano and micro barium titanate (BaTiO3) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO3

Effect of arrangement of nano and micro barium titanate (BaTiO3) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO3

Crystallinity of poly(arylene ether nitrile) copolymers containing hydroquinone and bisphenol A segments

Double-layer core/shell-structured nanoparticles in polyarylene ether nitrile-based nanocomposites as flexible dielectric materials

Contact Info

Product

Resources

About

Effect of arrangement of nano and micro barium titanate (BaTiO₃) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO₃

Effect of arrangement of nano and micro barium titanate (BaTiO₃) particles on the enhanced dielectric constant of high‐density polyethylene (HDPE)/BaTiO₃