Preparation and characterization of antistatic packaging for electronic components based on poly(lactic acid)/carbon black composites

Silva, Thaís Ferreira da; Menezes, Fernanda; Montagna, Larissa Stieven; Lemes, Ana Paula; Passador, Fábio Roberto

doi:10.1002/app.47273

Cited by 63 publications

(61 citation statements)

References 56 publications

(52 reference statements)

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“…This reduction was expected since the addition of CNTs increases the stiffness of the polymer matrix and consequently reduces the impact strength, and similar results were found in the literature [37]. Moreover, PHBV/CNT nanocomposite suffered a reduction in the impact strength because the dispersion of CNTs into PHBV matrix was not good enough, changing the tenacity mechanism and consequently reducing the energy absorption [38,39]. After functionalization, the impact resistance was slightly increased if compared to PHBV/CNT.…”

Section: Notched Izod Impact Strengthsupporting

confidence: 78%

Covalently γ-aminobutyric acid-functionalized carbon nanotubes: improved compatibility with PHBV matrix

et al. 2019

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The improvement of compatibility between carbon nanotubes (CNTs) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was achieved using CNT functionalized with γ-aminobutyric acid (GABA). The efficiency of the CNT functionalization with GABA was evaluated by X-ray photoelectron spectroscopy (XPS), infrared spectroscopy (FT-IR), Raman spectroscopy, and transmission electron microscopy (TEM). The PHBV/CNT nanocomposites were produced in the molten state with the addition of 0.5 wt% of CNT (pristine, oxidized and functionalized with GABA) and characterized concerning the Izod impact strength tests. The impact fracture morphologies were analyzed using scanning electron microscopy. The results showed that GABA was covalently attached to CNT, resulting in the detection of nitrogen in the XPS survey, the shift of carbonyl peak wavelength on FT-IR, and a higher degree of structural disorder, detected by Raman and observed in TEM images. The impact strength was not significantly affected by the introduction of CNT; however, the impact fracture mechanism was changed from fragile to ductile when CNT was functionalized with GABA. These results are promising for the production of environmentally friendly nanocomposites with superior properties.

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Section: Notched Izod Impact Strengthsupporting

confidence: 78%

Covalently γ-aminobutyric acid-functionalized carbon nanotubes: improved compatibility with PHBV matrix

et al. 2019

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“…However, in the production of antistatic packaging for storage and transport of electronic components and devices, the insulating characteristic of the most polymers can result in electrostatic tensions accumulation, which, if not dissipated, can generate electrostatic discharge (ESD) capable of damaging and invalidating the product [1,2]. Many studies associate several polymers such as polyvinyl chloride (PVC) [3], low-density polyethylene (LDPE) [4], polyurethane (PU) [5], poly(lactic acid) (PLA) [6], polyamide 6/linear low-density polyethylene blends (PA6/LLDPE) [7], and aromatic polyesters such as poly(ethylene terephthalate) (PET) [8,9] and poly(trimethylene terephthalate)/acrylonitrile butadiene styrene blends (PTT/ABS) [10] as excellent candidates for the preparation of antistatic packaging.…”

Section: Introductionmentioning

confidence: 99%

“…As well as in various polymers, a dissipative character can be attributed to PTT by adding functional fillers (antistatic agents) into the polymeric matrix. These additives may range from metallic particles [19] and intrinsically conductor polymers, such as polyaniline [20] and polypyrrole [21], to different carbon materials as carbon black [6,22], graphene [23], carbon fibers [24,25], glassy carbon [4], and carbon nanotubes (CNT) [26].…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Nanotubes (CNT) Functionalization and Maleic Anhydride-Grafted Poly(trimethylene terephthalate) (PTT-g-MA) on the Preparation of Antistatic Packages of PTT/CNT Nanocomposites

et al. 2020

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Electronic devices require the use of antistatic packing to prevent electrostatic discharge during their storage or transport. Poly (trimethylene terephthalate) (PTT) is a polyester with excellent properties and can be a good candidate for this application. To make this insulating polymer an extrinsic conductor, carbon nanotubes (CNT) can be added to reduce the electrical resistivity of the nanocomposites. In order to facilitate the CNT distribution on polymeric matrix, it was proposed a chemical functionalization using nitric acid for the creation of functional groups on its surface. Moreover, the PTT matrix was modified with a compatibilizer agent based on maleic anhydride grafted PTT (PTT-g-MA), to improve interfacial adhesion between the nanofiller and matrix. In this work, nanocomposites based on PTT/PTT-g-MA/CNT were prepared by extrusion process, with 0.5 wt% and 1.0 wt% of CNT and functionalized CNT. CNT was characterized by stability dispersion in water, Raman spectroscopy, FTIR and XPS analysis, which prove the success of functionalization. The nanocomposites were evaluated by thermal analysis, tensile tests, electrical conductivity, and morphological analysis. The CNT functionalization and the addition of PTT-g-MA increased the dispersion and distribution of CNT in the PTT matrix. The electrical properties show that this material can be used as an antistatic packaging.

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“…This homogenizer enables excellent mixing of the melt polymer with fillers. Polyethylene [34] and polyester [35] nanocomposites with carbonaceous nanomaterials (carbon nanotubes and carbon black) were successfully obtained, where excellent dispersion of nanomaterials in the polymeric matrices was observed. Thus, the use of this mixing technique aims to improve ATP dispersion in PA12 faster and at a lower cost, seeking improvements in the mechanical properties of PA12.…”

Section: Introductionmentioning

confidence: 99%

A simple mixing method for polyamide 12/attapulgite nanocomposites: structural and mechanical characterization

Silva

Morgado

Montanheiro³

et al. 2020

SN Appl. Sci.

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In this work, the attapulgite (ATP) was used as a promising mineral clay to prepare polyamide 12 (PA12) matrix polymer nanocomposites. ATP has a relatively low cost compared to other nanoclays and is a very abundant raw material in the northeast region of Brazil. The ATP was characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy and field emission gun scanning electron microscopy (FEG-SEM). The PA12/ATP nanocomposites with 0, 1, 2.5, 5, 7.5 and 10 wt% of ATP were prepared using a simple blending method in a high-speed thermokinetic homogenizer (3000 rpm) in which the melting of the PA12 and the mixture with ATP occurred by friction, followed by hot pressing and stamping of the specimens. The nanocomposites were characterized by mechanical properties, the degree of crystallinity and crystallite size were calculated by XRD, and the morphological characteristics were observed by SEM. The addition of ATP in the PA12 matrix increased the modulus of elasticity, hardness, degree of crystallinity and the apparent crystallite size of the nanocomposites. The addition of up to 5 wt% of ATP increased tensile strength and deformation at break; for higher concentrations, the dispersion was not efficient. A major advantage of using ATP as a reinforcement agent for PA12 is the low cost of this material plus the great interaction with PA12 which can dispense the use of compatibilizer agents and/or surface modification in the ATP, making it a potential material to extend PA12's range of applications.

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Preparation and characterization of antistatic packaging for electronic components based on poly(lactic acid)/carbon black composites

Cited by 63 publications

References 56 publications

Covalently γ-aminobutyric acid-functionalized carbon nanotubes: improved compatibility with PHBV matrix

Covalently γ-aminobutyric acid-functionalized carbon nanotubes: improved compatibility with PHBV matrix

Effect of Carbon Nanotubes (CNT) Functionalization and Maleic Anhydride-Grafted Poly(trimethylene terephthalate) (PTT-g-MA) on the Preparation of Antistatic Packages of PTT/CNT Nanocomposites

A simple mixing method for polyamide 12/attapulgite nanocomposites: structural and mechanical characterization

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