Effects of the Carbon Fillers on the EMI Shielding Performance and Physical Properties of Nylon66 Composites

신경민,; 심창업,; 이정석,; Kim, Youn Cheol

doi:10.7317/pk.2017.41.3.524

Cited by 3 publications

(3 citation statements)

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“…[1][2][3] CNT의 이런 탁월한 특 성으로 인해 고분자 복합체 제조에 매우 유용한 충전제로 간 주되어 오고 있다. [4][5][6][7] 그러나 CNT가 갖고 있는 비활성 특성 으로 인해 탁월한 특성의 발현이 가능한 고분자 복합체 제조 에는 한계가 있다. CNT는 CNT 상호간의 상호작용과 높은 종횡비로 인한 얽힘으로 집합체를 고분자 매트릭스 내에서 형성한다.…”

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“…따라서 탁월한 특성의 발현이 가능한 고분자와 CNT 복합체 제조를 위해서는 고분자 매트릭스 내에서 CNT 의 균일한 분산과 고분자와 CNT간에 우수한 계면 접착의 확 보가 필요하다. [3][4][5][6][7] 폴리(부틸렌 테레프탈레이트)(PBT)는 높은 기계적 강도와 내화학성으로 자동차, 전자 부품 등의 다양한 분야 소재로 활 용되고 있다.…”

Section: 서 론unclassified

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Changes in the Interfacial Properties between Poly(butylene terephthalate) and Multi-walled Carbon Nanotubes Bonded with Various Functional Groups

Hong¹,

Kim²

2018

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The composites of poly(butylene terephthalate) (PBT) and multi-walled carbon nanotubes (MWCNTs) functionalized with carboxylic acid, acyl chloride and ethyl amine were prepared and their properties were characterized. The interfacial adhesion energies between PBT and functionalized MWCNTs were estimated with a drop-on-fiber method combined with a generalized droplet shape analysis method. The interfacial adhesion energies between PBT and functionalized MWCNTs were higher than that between PBT and pristine MWCNT. Among the functionalized MWCNTs, MWCNT containing ethyl amine exhibited the highest interfacial adhesion energy with PBT. When dispersion of MWCNTs in the PBT matrix was examined, composites having high interfacial adhesion energy exhibited better dispersion. PBT composite containing MWCNT functionalized with ethyl amine also exhibited greater adhesion at the interface and reinforcement than that containing pristine MWCNT.

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Section: 서 론unclassified

Changes in the Interfacial Properties between Poly(butylene terephthalate) and Multi-walled Carbon Nanotubes Bonded with Various Functional Groups

Hong¹,

Kim²

2018

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“…As far as the electrical properties of carbon-filled PA composites are concerned, there is abundant literature. In general terms, the most widely used carbon fillers to be melt compounded with polyamides are CBs, CFs and graphites, which can be processed by extrusion or injection molding techniques [27][28][29]. For example, fabrics made of polyamide-66 (PA66) or polyamide-12 (PA12) containing CB with electromagnetic shield properties for protecting the human body against radiation [30] or thermoplastic nanocomposites with high mechanical resistance and electrical conductivity [14] were fabricated by melt mixing.…”

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confidence: 99%

Thermal, Morphological, Electrical Properties and Touch-Sensor Application of Conductive Carbon Black-Filled Polyamide Composites

et al. 2021

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Polyamide 66 (PA66) is a well-known engineering thermoplastic polymer, primarily employed in polymer composites with fillers and additives of different nature and dimensionality (1D, 2D and 3D) used as alternatives to metals in various technological applications. In this work, carbon black (CB), a conductive nanofiller, was used to reinforce the PA66 polymer in the 9–27 wt. % CB loading range. The reason for choosing CB was intrinsically associated with its nature: a nanostructured carbon filler, whose agglomeration characteristics affect the electrical properties of the polymer composites. Crystallinity, phase composition, thermal behaviour, morphology, microstructure, and electrical conductivity, which are all properties engendered by nanofiller dispersion in the polymer, were investigated using thermal analyses (thermogravimetry and differential scanning calorimetry), microscopies (scanning electron and atomic force microscopies), and electrical conductivity measurements. Interestingly, direct current (DC) electrical measurements and conductive-AFM mapping through the samples enable visualization of the percolation paths and the ability of CB nanoparticles to form aggregates that work as conductive electrical pathways beyond the electrical percolation threshold. This finding provides the opportunities to investigate the degree of filler dispersion occurring during the transformation processes, while the results of the electrical properties also contribute to enabling the use of such conductive composites in sensor and device applications. In this regard, the results presented in this paper provide evidence that conductive carbon-filled polymer composites can work as touch sensors when they are connected with conventional low-power electronics and controlled by inexpensive and commercially available microcontrollers.

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Improved of Mechanical Properties and Functionalization of Polycarbonate by Adding Carbon Materials

Kim¹,

Choi²,

Go³

et al. 2020

KSMPE

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Effects of the Carbon Fillers on the EMI Shielding Performance and Physical Properties of Nylon66 Composites

Cited by 3 publications

References 0 publications

Changes in the Interfacial Properties between Poly(butylene terephthalate) and Multi-walled Carbon Nanotubes Bonded with Various Functional Groups

Changes in the Interfacial Properties between Poly(butylene terephthalate) and Multi-walled Carbon Nanotubes Bonded with Various Functional Groups

Thermal, Morphological, Electrical Properties and Touch-Sensor Application of Conductive Carbon Black-Filled Polyamide Composites

Improved of Mechanical Properties and Functionalization of Polycarbonate by Adding Carbon Materials

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