Effect of Graphite Content on The Mechanical Properties of Acrylonitrile‐Butadiene‐Styrene (ABS)

Braga, Natália Ferreira; Passador, Fábio Roberto; Saito, Eduardo; Cristovan, Fernando H.

doi:10.1002/masy.201800018

Cited by 8 publications

(6 citation statements)

References 19 publications

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“…Besides, as shown in Figure 13(h) presence of fewer voids and uniform dispersion of graphite might also be aided in improving the hardness of the composites. The results are in agreement with the works that studied the hardness of the natural fiber composites [23,38]. Hybrid composite shows better hardness value when the composite is prepared with E-glass fiber as a skin layer and jute natural fiber as a core layer compared to other laminates.…”

Section: Resultssupporting

confidence: 91%

Effect of graphite particulate on mechanical characterization of hybrid polymer composites

Dhanunjayarao

Sanivada

Naidu

et al. 2021

Journal of Industrial Textiles

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Quest for producing lightweight and biodegradable materials has encouraged researchers to replace synthetic fibers with natural fibers. Hence a study is made to investigate the effects of introducing secondary reinforcement (natural fibers), stacking sequence, and addition of graphite particles on the mechanical characteristics and water uptakes along with diffusivity of hybrid (glass\jute) composites. Different weight fractions of graphite particulates are incorporated into the epoxy to produce different samples having 4 plies for each sample by hand layup vacuum bagging method. The obtained specimens are subjected to various mechanical tests, water absorption tests as per the ASTM standards, and optical microscopy was used to study the fracture morphology of the samples. The results displayed that the properties are deteriorated a little with the addition of secondary reinforcement, however they have improved with the addition of graphite. E-Glass as skin layer and treated jute as core layer composite exhibits ameliorate tensile strength (201.5 MPa), compression strength (515.12 MPa), flexural strength (106.9 MPa), hardness (25 BHN). However highest impact energy of 26 J is recorded for the sample with jute as skin layer and E-Glass as the core layer. Water absorption tests revealed that the addition of graphite has reduced the water absorption in the hybrid samples.

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Section: Resultssupporting

confidence: 91%

Effect of graphite particulate on mechanical characterization of hybrid polymer composites

Dhanunjayarao

Sanivada

Naidu

et al. 2021

Journal of Industrial Textiles

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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: 79%

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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“…Acrylonitrile‐butadiene‐styrene (ABS) terpolymer is an engineering polymer widely used in the electronics and automotive industries due to its excellent mechanical property and chemical resistance. [ 1,2 ] Structurally, ABS has three monomeric segments which contents provide the general behavior of distinct ABSs. [ 3 ] Industrial synthesize of ABS, generally, presents percentages ranging from 15% to 35% of acrylonitrile, 40% to 60% for styrene and 5% to 30% for butadiene rubber, [ 4 ] such ranges allow adjusting specifics ABSs for high performance engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Approaches on the acrylonitrile‐butadiene‐styrene functionalization through maleic anhydride and dicumyl peroxide

Luna

Siqueira

Araújo

et al. 2020

Vinyl Additive Technology

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Acrylonitrile‐butadiene‐styrene (ABS) functionalization is industrially important since it can wide the ABS application range. However, grafting of functional groups must be effective. This work aimed evaluating the effectiveness of ABS functionalization in an internal mixer, using maleic anhydride (MA) and dicumyl peroxide (DCP) as initiator, at 2.5% and 5.0%; and 0.3% and 0.5% contents respectively. Torque rheometry, melt flow rate (MFR), titration, Fourier transform infrared spectroscopy (FTIR), contact angle, thermogravimetry (TG), differential scanning calorimetry (DSC), and X‐ray diffraction (XRD) were used to collect the main parameters of produced compounds. For ABS with 5% MA and 0.5% DCP, an efficiency of 62% was reached with the degree of grafting 3.1% MA. FTIR spectra confirmed new band in ABS chain in 1780 cm−1 due to the carbonyl group. Reduction in contact angle and thermal stability were verified, whereas MFR and torque rheometry suggested that viscosity decrease is most due to the molecular weight reduction. In general, MA grafted ABS presented proper functionalization with great potential for applications as reactive compatibilizer.

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Effect of Graphite Content on The Mechanical Properties of Acrylonitrile‐Butadiene‐Styrene (ABS)

Cited by 8 publications

References 19 publications

Effect of graphite particulate on mechanical characterization of hybrid polymer composites

Effect of graphite particulate on mechanical characterization of hybrid polymer composites

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

Approaches on the acrylonitrile‐butadiene‐styrene functionalization through maleic anhydride and dicumyl peroxide

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