Fabrication, mechanical properties and flammability of polypropylene/MoS2 composites

Kolekar, Aniket; Kulthe, M. G.; Bansode, Vishal; Mali, Amol

doi:10.1016/j.matpr.2021.09.115

Cited by 1 publication

(2 citation statements)

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“…The MoS 2 pellets are homogeneously distributed in the PP matrix, forming a three‐dimensional network (Figure 4C, D). [ 15 ] The MoS 2 nanosheets protrude from the cross‐section and are encapsulated by the PP matrix, indicating their excellent adhesion to the substrate interface. [ 32 ] The performance enhancement of the composite by MoS 2 is optimal when the MoS 2 content is 0.5 wt.%.…”

Section: Resultsmentioning

confidence: 99%

“…Feng et al [ 14 ] prepared PP/MoS 2 composites and reported a 28.1% lower peak heat‐release rate in composites with a MoS 2 loading of 1.6 wt.% than in pure PP. Kolekar et al [ 15 ] prepared PP composites filled with MoS 2 using a horizontal ball‐milling machine. After adding 4.28 Vol.% MoS 2 , the tensile and impact strengths of PP were enhanced by 11% and 62.50%, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Molybdenum disulfide of modified in situ as a nanofiller for enhanced mechanical properties and thermal properties of polypropylene composites

Dong

Liu²,

Li³

et al. 2022

Polymer Composites

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Few-layer molybdenum disulfide (MoS 2 ) was prepared by liquid phase exfoliation with in-situ modification as a nanofiller for polypropylene (PP). Scanning and transmission electron microscopies (SEM, TEM) showed uniform dispersion and excellent adhesion of MoS 2 within the PP matrix. When MoS 2 was centrifuged at 1000 rpm, the mechanical properties of the composite were greatly improved by adding only 0.5 wt.% of MoS 2 . The yield strength, bending modulus, and impact strength increased by 2.3%, 8.9%, and 44.03%, respectively. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) showed that the enhanced mechanical properties of the composites were related to PP crystallographic transformation. Thermogravimetric analysis (TGA) showed that the incorporation of 2 wt.% MoS 2 increased the maximum weight-loss temperature of the composites by approximately 30 C. The mechanisms for increasing thermal stability have been thoroughly demonstrated by band energy analysis. MoS 2 nanosheets have high aspect ratios and strong insulation with a change in band gap width compared to bulk MoS 2 , which is resulting in the stronger interactions at the MoS 2 /PP substrate interface. Furthermore, due to the outstanding carrier for rigid and thermally stable materials, MoS 2 composites displayed excellent mechanical and thermal properties. In addition, unlike PP, the melt flow rate (MFR) of composite materials is more conducive to downstream product processing. This will further promote the application scope of MoS 2 /PP composites.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%