Polymerization and characterization of high conductivity and good adhension polypyrrole films for electromagnetic interference shielding

Qiao, Yongsheng; Shen, Lazhen; Dou, Tao; Hu, Ming

doi:10.1007/s10118-010-9175-x

Cited by 26 publications

(10 citation statements)

References 26 publications

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“…The main component peak at 396.9 eV was assigned to the neutral NH nitrogen. The peak of higher binding energy at about 398.78 eV was attributed to positively charged nitrogen (N + ) [28,29]. The intensity of the N + peak (sample S4) decreases because the Ni content from the PT/Ni nanocomposite is lower compared to those of samples S5 and S6.…”

Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 92%

Metal–polymer nanocomposites based on Ni nanoparticles and polythiophene obtained by electrochemical method

Pascariu

Airinei²,

Grigoraş³

et al. 2015

Applied Surface Science

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Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 92%

Metal–polymer nanocomposites based on Ni nanoparticles and polythiophene obtained by electrochemical method

Pascariu

Airinei²,

Grigoraş³

et al. 2015

Applied Surface Science

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“…2b) [26]. PPY shows characteristic FT-IR absorptions corresponding to νN-H (3450) [28], νC-H (2925), ν sym C=C (1,652), νC-C (1465), νC-N (1550) [29], νC=C (1564) representing the formation of 2,5-substituted PPY [28,30], νC-H in-plane deformation (1397) [28] and νC-H out-of-plane deformation (672.4) [31]. The peak at 1050 is attributed to C-H deformation.…”

Section: Starting Materialsmentioning

confidence: 99%

Enhanced electrocapacitive performance and high power density of polypyrrole/graphene oxide nanocomposites prepared at reduced temperature

Mudila¹,

Joshi²,

Rana³

et al. 2014

Carbon letters

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An attempt was made to investigate the effect of the preparation temperature on the electrocapacitive performance of polypyrrole (PPY)/graphene oxide (GO) nanocomposites (PNCs). For this purpose, a series of PNCs were prepared at various temperatures by the cetyltrimethylammonium bromide-assisted dilute-solution polymerization of pyrrole in presence of GO (wt%) ranging from 1.0 to 4.0 with ferric chloride as an oxidant. The formation of the PNCs was ascertained through Fourier-transform infrared spectrometry, X-ray diffraction spectra, scanning electron microscopy and simultaneous thermogravimetric-differential scanning calorimetry. The electrocapacitive performance of the electrodes derived from sulphonated polysulphone-bound PNCs was evaluated through cyclic voltammetry with reference to Ag/ AgCl at a scan rate (V/s) ranging from 0.2 and 0.001 in potassium hydroxide (1.0 M). The incorporation of GO into the PPY matrix at a reduced temperature has a pronounced effect on the electrocapacitive performance of PNCs. Under identical scan rates (0.001 V/s), PNCs prepared at 10 ± 1°C render improved specific conductivity (526.33 F/g) and power density (731.19 W/Kg) values compared to those prepared at 30 ± 1°C (217.69 F/g, 279.43 W/Kg). PNCs prepared at 10 ± 1°C rendered a capacitive retention rate of ~96% during the first 500 cycles. This indicates the excellent cyclic stability of the PNCs prepared at reduced temperatures for supercapacitor applications.

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“…are a class of organic conductive material which have electrical conductivity just below of metals. These ICPs can be successfully coated on textile fabric to prepare flexible and durable electro‐conductive fabrics . It is found that PPy has favorable application in the EMI shielding due to its good electrical conductivity and outstanding atmospheric stability .…”

Section: Introductionmentioning

confidence: 99%

“…There are few researches reported regarding the efficacy of EMI shielding of polypyrrole coated polyester fabrics . It has been reported that PPy coated composite woven fabrics exhibit electro‐magnetic interference shielding effectiveness (EMISE) of 36 dB at 1.5 GHz frequency and 29 dB at 0.5 GHz frequency . Most of these studies are conducted on woven and knitted fabrics.…”

Section: Introductionmentioning

confidence: 99%

“…These ICPs can be successfully coated on textile fabric to prepare flexible and durable electro-conductive fabrics [10][11][12][13][14][15][16][17][18][19][20]. It is found that PPy has favorable application in the EMI shielding due to its good electrical conductivity and outstanding atmospheric stability [11][12][13]. Researchers have found polyester fibers/fabrics suitable as substrate of polypyrrole coating [11,[14][15][16][17]20].…”

Section: Introductionmentioning

confidence: 99%

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Polypyrrole functionalized polyester needlepunched nonwoven fabrics for electro‐magnetic interference shielding

Maity

Chatterjee

2017

Polymer Composites

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Development of electro‐magnetic shield is an important research area since few decades to protect electronic devices and even human beings from harmful effects of electro‐magnetic rays. Textile based flexible shields are also developed as functionalized materials for this purpose. In this work, needlepunched nonwoven textile based electro‐conductive fabric is prepared by in‐situ chemical polymerization of pyrrole and their effectiveness as electro‐magnetic shield is explored. 33 Box‐Behnken design is used to investigate the influence of manufacturing process parameters of neddlepunched nonwoven fabric such as fabric gsm, punching density and depth of needle penetration on the polypyrrole add‐on, surface resistivity and electro‐magnetic shielding effectiveness. Surface resistivity as low as 18 Ω (with 16.28% polypyrrole add‐on) is obtained for a typical composite fabric. The shielding effectiveness of this fabric is found to be 20.07 dB at 4 GHz frequency. It has been found that the primary mechanism of the shielding is the absorption of electro‐magnetic rays into these composite fabrics rather than reflection from their surface. POLYM. COMPOS., 39:3696–3704, 2018. © 2017 Society of Plastics Engineers

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Polymerization and characterization of high conductivity and good adhension polypyrrole films for electromagnetic interference shielding

Cited by 26 publications

References 26 publications

Metal–polymer nanocomposites based on Ni nanoparticles and polythiophene obtained by electrochemical method

Metal–polymer nanocomposites based on Ni nanoparticles and polythiophene obtained by electrochemical method

Enhanced electrocapacitive performance and high power density of polypyrrole/graphene oxide nanocomposites prepared at reduced temperature

Polypyrrole functionalized polyester needlepunched nonwoven fabrics for electro‐magnetic interference shielding

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