Electrical Conductivity of PLA Films Reinforced With Carbon Nano Particles from Waste Acrylic Fibers

Naeem, Salman; Gilani, Syed Qummer Zia; Baheti, Vijay; Wiener, Jakub; Militký, Jiřı́; Javed, Sundus; Ali, Azam; Javed, Zafar; Hassan, Syed Zameer Ul

doi:10.1007/978-3-319-64641-1_18

Cited by 3 publications

(5 citation statements)

References 20 publications

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“…It was speculated that the effect was due to either residual chloroform remains absorbed by the polymer, evaporating at elevated temperatures, or the material micro-and nanostructure, giving the high porosity of the membrane increasing surface area subjected to reaction with the oxygen. Naeem reported unusually low initial mass loss (starting at around 80 • C) when preparing PLA composite films, TGA curves presenting similar patterns to those of the membranes presented in this work [46]. The preparation of the samples was similar, i.e., from PLA solutions in chloroform.…”

Section: Tga Analysissupporting

confidence: 76%

“…In this case, the initial low-temperature mass loss visible for a cast film and virtually identical with results obtained for electrospun samples, is absent from a hot-pressed sample, which proves that this mass loss can be attributed to chloroform evaporation. The temperature range of this event (60-150 • C), beginning around the boiling point of chloroform but strongly exceeding it upon completion, can be explained by the low freedom of polymer chains, PLA being in a glassy state in this temperature range and reaching melting temperature at around 150 • C, which enables the full elimination of CHCl 3 only at this point [46]. roform but strongly exceeding it upon completion, can be explained by the lo of polymer chains, PLA being in a glassy state in this temperature range an melting temperature at around 150 °C, which enables the full elimination of C at this point [46].…”

Section: Tga Analysismentioning

confidence: 99%

“…The temperature range of this event (60-150 • C), beginning around the boiling point of chloroform but strongly exceeding it upon completion, can be explained by the low freedom of polymer chains, PLA being in a glassy state in this temperature range and reaching melting temperature at around 150 • C, which enables the full elimination of CHCl 3 only at this point [46]. roform but strongly exceeding it upon completion, can be explained by the lo of polymer chains, PLA being in a glassy state in this temperature range an melting temperature at around 150 °C, which enables the full elimination of C at this point [46]. It is evident that the reference PLA membrane shows the highest initial mass loss, which corresponds to the highest amount of residual chloroform in the sample.…”

Section: Tga Analysismentioning

confidence: 99%

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Silsesquioxane-Doped Electrospun Nanofibrillar Membranes for Separation Systems

et al. 2022

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In this study, a series of cage siloxanes (CS), e.g., three polyhedral oligomeric silsesquioxanes (SSQs) and one spherosilicate (SS) derivative, were applied as functional additives for the preparation of poly(lactic acid)-based (PLA) nanofibrillar membranes with an electrospinning technique utilizing an efficient spinning wire electrode setup. The impact of the additives’ structure, chemistry, and electrospinning parameters on the obtained materials’ morphology (scanning electron microscopy) and physicochemical (thermogravimetry, differential scanning calorimetry, contact angle analysis, air flow analysis) properties is discussed. It is presented that applying organosilicon additives may extend the already tuneable properties of the membranes produced by electrospinning performed under different conditions and that they enable to obtain nanofibres of smaller diameter, which in turn increases the membrane porosity. Furthermore, the solvent-assisted electrospinning method allowed for unparalleled mixing of the PLA matrix with the CS additives, as no traces of free additives were visible on the membranes by scanning electron microscopy (SEM) imaging. The resulting membranes can be utilized as filter materials.

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Section: Tga Analysissupporting

confidence: 76%

Section: Tga Analysismentioning

confidence: 99%

Section: Tga Analysismentioning

confidence: 99%

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Silsesquioxane-Doped Electrospun Nanofibrillar Membranes for Separation Systems

et al. 2022

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“…Its use has grown in different industrial sectors in applications for packaging, handles, seals, protective covers, and finishes, without food sector, automotive, chemical, cosmetic, hospital, and household utensils, especially disposables . As PLA has no conductive characteristics, it requires the addition of allotropic carbon forms, such as conductive carbon black, to render the polymer less resistive to the sinking material and making it suitable for the manufacture of antistatic packaging …”

Section: Introductionmentioning

confidence: 99%

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

Silva

Menezes

Montagna

et al. 2018

J of Applied Polymer Sci

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Poly(lactic acid) (PLA) is a biodegradable aliphatic polymer obtained from renewable sources; its main application is in the packaging sector. Electronic components require the use of antistatic packaging that prevents damage and electric shock. As PLA has no conductive characteristics, it requires the addition of allotropic carbon forms such as conductive carbon black to make the polymer less resistive as the dissipative material and making it suitable for the manufacture of antistatic packaging. In this study, PLA was melt blended with 5, 10, and 15 wt % of carbon black. The composites were prepared using a high‐speed mixer. Samples were characterized by Izod impact resistance tests, scanning electron microscopy, thermal properties, electrical characterization, and biodegradation tests in garden soil. The addition of carbon black in the PLA matrix increases the temperature of degradation and decreases the crystallinity degree and the impact resistance of the composites. However, carbon black is a great option to increase the electrical conductivity of PLA. The addition of carbon black in PLA makes the composite less resistive and suitable for use as antistatic packaging for the transportation and storage of electronic components. Furthermore, this composite does not cause damage to the environment as the carbon black does not interfere in the degradation mechanism of PLA. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47273.

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“…Oleh karena itu, bentuk linear dan nonlinear kinetika orde pertama dan orde kedua diterapkan untuk adsorpsi. Kinetika adsorpsi penting dalam menentukan serapan adsorbat oleh adsorben dan waktu yang dibutuhkan untuk penyelesaian proses adsorpsi (Salman Naeem et al, 2018). Gambar 2 (a) dan (b) menunjukkan grafik Log (Cs-Ct) vs waktu dan grafik t/Ct vs waktu.…”

Section: Hasil Dan Pembahasanunclassified

Penentuan Konstanta Isoterm Freundlich dan Kinetika Adsorpsi Karbon Aktif Terhadap Asam Asetat

Setyorini,

Arninda,

Syafaatullah

et al. 2023

Eksergi

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Karbon aktif merupakan salah satu adsorben yang paling sering digunakan. Salah satu senyawa yang dapat diserap yaitu asam asetat. Untuk mengetahui kinerja adsoben lebih lanjut, maka diperlukan studi kinetika berdasarkan persamaan isoterm freundlich. Isoterm freundlich mampu menunjukkan jenis adsopsi apakah secara kimisorpsi atau fisisorpsi dan berlangsung secara multilayer. Studi kinetika pseudo first order dan pseudo second order dimaksudkan untuk mengetahui mekanisme dan karakteristik adsorpsi yang berlangsung. Penelitian ini bertujuan untuk mengetahui konstanta isotherm freundlich dan kinetika adsorpsi karbon aktif terhadap asam asetat. Konsentrasi asam asetat yang digunakan untuk mengetahui konstanta freundlich yaitu 0,5M, 0,25M, 0,125M, 0,0625M, 0,03125M dengan lama waktu kontak selama 10 menit. Sedangkan kinetika adsorpsi dilakukan dengan menggunakan asam asetat yang berkonsentrasi 0,5 M dengan waktu adsorpsi 2 menit, 4 menit, 6 menit, 8 menit dan 10 menit. Kemudian filtrat di titrasi dengan NaOH 0,1N. Ukuran karbon aktif yang digunakan antara lain 180 mess, 420 mess dan 600 mess. Data yang diperoleh dianalisis dengan persamaan freundlich, pseudo first order dan pseudo second order. Data analisis yang didapatkan nilai konstanta freundlich yaitu sebesar 50,00342 dan memenuhi kinetika orde dua yang artinya, proses adsorpsi dipengaruhi lebih dari satu faktor. Kata Kunci: Isoterm Freundlich; Pseudo first order; Pseudo second order ABSTRACT: Activated carbon is one of the most frequently used adsorbents. One of the compounds that can be absorbed is acetic acid. In order to know the adsorbent performance further, it is necessary to study the kinetics based on the freundlich isotherm equation. The freundlich isotherm is able to show the type of adsorption whether by chemisorption or physisorption and takes place in a multilayer manner. The first-order and second-order pseudokinetic studies are intended to determine the adsorption mechanism and characteristics that take place. This study aims to determine the freundlich isotherm constant and the adsorption kinetics of activated carbon on acetic acid. The concentration of acetic acid used to determine the freundlich constant is 0.5 M, 0.25 M, 0.125 M, 0.0625 M, 0.03125 M with a contact time of 10 minutes. While the adsorption kinetics was carried out using acetic acid with a concentration of 0.5 M with an adsorption time of 2 minutes, 4 minutes, 6 minutes, 8 minutes and 10 minutes. Then the filtrate was titrated with 0.1N NaOH. The sizes of activated carbon used include 180 mess, 420 mess and 600 mess. The data obtained were analyzed using the freundlich equation, pseudo first order and pseudo second order. The analysis data obtained is the freundlich constant value of 50.00342 and fulfills second order kinetics, which means that the adsorption process is influenced by more than one factor.

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Electrical Conductivity of PLA Films Reinforced With Carbon Nano Particles from Waste Acrylic Fibers

Cited by 3 publications

References 20 publications

Silsesquioxane-Doped Electrospun Nanofibrillar Membranes for Separation Systems

Silsesquioxane-Doped Electrospun Nanofibrillar Membranes for Separation Systems

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

Penentuan Konstanta Isoterm Freundlich dan Kinetika Adsorpsi Karbon Aktif Terhadap Asam Asetat

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