Multiwalled carbon nanotube promotes crystallisation while preserving co-continuous phase morphology of polycarbonate/polypropylene blend

Arif, P. Mohammed; Sarathchandran, C.; Narayanan, Aravinda; Saiter, Allisson; Terzano, Roberto; Allegretta, Ignazio; Porfido, Carlo; Kalarikkal, Nandakkumar; Thomas, Sabu

doi:10.1016/j.polymertesting.2017.09.026

Cited by 20 publications

(6 citation statements)

References 40 publications

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“…Rejisha et al reported the improved mechanical, thermal, and morphological properties of polybutylene terephthalate/polycarbonate blends with the incorporation of MWCNTs . Arif et al reported the influence of MWCNT in the crystallisation rate of polycarbonate/polypropylene blend . In the present study, we investigate the blending characteristics of PTT with polyethylene (PE) and look at the improvement in properties of the resulting blends.…”

Section: Introductionmentioning

confidence: 90%

Selective Localization of MWCNT in Poly (Trimethylene Terephthalate)/Poly Ethylene Blends: Theoretical Analysis, Morphology, and Mechanical Properties

Kunjappan

Ramachandran

Padmanabhan

et al. 2018

Macromolecular Symposia

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Theoretical analysis is carried out to predict the nature of selective localization of multi‐walled carbon nanotubes (MWCNTs) in poly(trimethylene terephthalate/polyethylene (PTT/PE) blends. In agreement with theoretical data experimental results clearly indicate that MWCNT prefers to get associated with PTT phase than with PE. Molecular interactions responsible for such selective localization of MWCNT to PTT component can be attributed to mutual and collective π–π interactions possible between the aromatic moieties present in PTT and MWCNT. In addition, the reinforcing effect of MWCNT in the PTT/PE system was determined using tensile analysis and the morphological features of blends and blend nanocomposites are studied using scanning electron microscope (SEM). Compared to the PTT/PE blend system MWCNT incorporated blend nanocomposites show better mechanical properties. The elongation at break of the blend system is seen to rise with increasing amount of PE content. Among various blend nanocomposites, we have investigated the nanocomposites with higher PTT content show higher tensile strength and Young's modulus. The blend nanocomposite with 90/10/1 composition shows 12% increment in Young's modulus and as much as 80% increment in tensile strength compared to 90/10 blend system which signifies the role MWCNT plays in the blend system.

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Section: Introductionmentioning

confidence: 90%

Selective Localization of MWCNT in Poly (Trimethylene Terephthalate)/Poly Ethylene Blends: Theoretical Analysis, Morphology, and Mechanical Properties

Kunjappan

Ramachandran

Padmanabhan

et al. 2018

Macromolecular Symposia

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“…Thereafter the melting temperature decreased with the increase of UFBC loading. The excessive UFBC was incompatible with the crystalline fractions of PP and hindered the segmental dynamics of PP . As seen from the Fig.…”

Section: Resultsmentioning

confidence: 86%

Polypropylene biocomposites reinforced with bamboo particles and ultrafine bamboo‐char: The effect of blending ratio

et al. 2018

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Bamboo particles (BPs) and ultrafine bamboo‐char (UFBC) were introduced into polypropylene (PP) biocomposites by melt‐blending and injection molding, to improve the mechanical and thermal properties of PP matrix. The maximum tensile strength of 30.59 MPa was obtained when the ratio was 70/25/5, which was improved by 30% than that of pure PP. The maximum tensile modulus of 460.13 MPa was achieved when the ratio was 70/20/10, which was enhanced by 109%, 35% and 24% than that of neat PP, PP/BP (70/30), and PP/UFBC (70/30), respectively. The mechanical and thermal properties of the biocomposites were improved through adding UFBC. Improvement evidences on interfacial interaction and elemental distribution were observed by scanning electron microscope and energy dispersive spectrum analysis. The maximum melting temperature of 166.6°C was achieved that was increased 5.9°C than neat PP. Crystallization temperature was significantly improved with the increasing of UFBC and BP loadings. POLYM. COMPOS., 39:E640–E646, 2018. © 2018 Society of Plastics Engineers

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“…Proper control of blend morphology is fundamental to produce an engineered thermoplastic material. 18 Many researchers have reported the use of CNT and Gr as possible alternatives to improve the thermal and mechanical properties of polymer matrixes. [19][20][21][22] Paszkiewicz et al 23 showed that the addition of as little as 1.5 wt.% of multi-walled nanotubes (MWCNTs) caused a shift of a maximum temperature of about 27 C toward higher temperatures when mixed with low-density polyethylene (LDPE).…”

Section: Introductionmentioning

confidence: 99%

“…However, these properties strongly depend on the uniform dispersion and distribution of these nanofillers throughout the polymer matrix. Proper control of blend morphology is fundamental to produce an engineered thermoplastic material 18 …”

Section: Introductionmentioning

confidence: 99%

Development of poly (linear low‐density ethylene)/poly (ethylene‐methyl co‐acrylate) blends with enhanced thermal‐stability and toughening behavior with adding of carbonaceous fillers

Nunes

Garcia

Mélo

et al. 2023

J of Applied Polymer Sci

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In this work, polymer blend nanocomposites based on carbon fillers were produced via melt‐compounding in a twin‐screw extruder. A combination of several matrices (LLDPE, EMA, and LLDPE/EMA) and fillers (FLG, FWCNT, and FLG/FWCNT) was used. Thermal enhancement as the consequence of few‐walled carbon nanotube addition, led to significant improvements in the initial degradation temperatures of LLDPE (383.2 > 441.2°C), EMA (371.2 > 417.3°C), and LLDPE/EMA (390.55 > 430.62°C) matrixes, respectively. The evaluation of the dynamic‐mechanical behavior of the compositions showed an increase of 80% in the storage module for LLDPE‐based nanocomposites, a reduction of 30% for blend‐based nanocomposites, and a non‐change for EMA nanocomposites. Tenacity property was considerably improved, achieving a value 78% higher to the LLDPE/EMA blend, mainly due to the possible migration of the nanoparticles from EMA phase to the LLDPE phase, creating a more efficient physical network with well‐developed percolating structure, which facilitates the dissipation of energy during mechanical loading. In summary, it can be observed that the morphology control as well as the nanofillers location, proved to be extremely relevant factors to produce a polymer film with enormous gains in the thermal and mechanical properties.

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Multiwalled carbon nanotube promotes crystallisation while preserving co-continuous phase morphology of polycarbonate/polypropylene blend

Cited by 20 publications

References 40 publications

Selective Localization of MWCNT in Poly (Trimethylene Terephthalate)/Poly Ethylene Blends: Theoretical Analysis, Morphology, and Mechanical Properties

Selective Localization of MWCNT in Poly (Trimethylene Terephthalate)/Poly Ethylene Blends: Theoretical Analysis, Morphology, and Mechanical Properties

Polypropylene biocomposites reinforced with bamboo particles and ultrafine bamboo‐char: The effect of blending ratio

Development of poly (linear low‐density ethylene)/poly (ethylene‐methyl co‐acrylate) blends with enhanced thermal‐stability and toughening behavior with adding of carbonaceous fillers

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