A unique application of the second order derivative of FTIR–ATR spectra for compositional analyses of natural rubber and polychloroprene rubber and their blends

Manohar, Neha; Jayaramudu, J.; Sanyal, Sankar P.; Rajkumar, K.; Reddy, A. Babul; Sadiku, Rotimi; Priti, R.; Maurya, D.J.

doi:10.1016/j.polymertesting.2017.07.030

Cited by 49 publications

(20 citation statements)

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“…Other vibrational bands associated with the rubber mixture are 1096 cm −1 (τ -CH 2 ), 1039 cm −1 (ρ -CH 3 ), 1014 cm −1 (ν C-C), 986 cm −1 (τ C=C) and 744 cm −1 (ρ -CH 2 ) [40,42,44]. The band appearing at 824 cm −1 is due to the -CH 2 rocking near the double bond, which is a strong band of primary importance in chloroprene, along with the band at 665 cm −1 (ν -C-Cl) [14].…”

Section: Ft-ir Analysismentioning

confidence: 94%

“…However, CR shows deficiencies in its resistance to abrasion [13]. Due to the halogen group in the rubber structure, it resists burning inherently better than exclusively hydrocarbon rubbers [14]. The CR/NR/BR (chloroprene rubber, natural rubber, and butadiene rubber) blend can be used for engineering applications in which high performance, excellent tribological properties, and chemical resistance are required (e.g., mining and bearing industry).…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of Chloroprene/Natural/Butadiene Rubber Nanocomposite Properties Using Organoclays and Their Combination with Carbon Black as Fillers

et al. 2021

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Organoclay nanoparticles (Cloisite® C10A, Cloisite® C15) and their combination with carbon black (N330) were studied as fillers in chloroprene/natural/butadiene rubber blends to prepare nanocomposites. The effect of filler type and load on the physical mechanical properties of nanocomposites was determined and correlated with its structure, compatibility and cure properties using Fourier Transformed Infrared (FT-IR), X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA) and rheometric analysis. Physical mechanical properties were improved by organoclays at 5–7 phr. Nanocomposites with organoclays exhibited a remarkable increase up to 46% in abrasion resistance. The improvement in properties was attributed to good organoclay dispersion in the rubber matrix and to the compatibility between them and the chloroprene rubber. Carbon black at a 40 phr load was not the optimal concentration to interact with organoclays. The present study confirmed that organoclays can be a reinforcing filler for high performance applications in rubber nanocomposites.

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Section: Ft-ir Analysismentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Enhancement of Chloroprene/Natural/Butadiene Rubber Nanocomposite Properties Using Organoclays and Their Combination with Carbon Black as Fillers

et al. 2021

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“…Basically, pure NR shows characteristic peak at 842 cm -1 represented =CH out of plane bending. Peak at 1375 cm -1 and 1432 cm -1 are characteristic of CH 2 deformation and at the region 2852-2925 cm -1 represented the CH 2 symmetric stretching vibrations [21][22]. All of NR composites filled SiO 2 show a strong peak at 464 and 1086 cm -1 that were attributed to the asymmetric bending vibration and the asymmetrical stretching vibration of Si-O-Si, respectively [23][24].…”

Section: Ftir Spectral Analysismentioning

confidence: 96%

Effect of shrimp shell chitosan loading on antimicrobial, absorption and morphological properties of natural rubber composites reinforced with silica-chitosan hybrid filler

2020

Biointerface Res Appl Chem

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The natural rubber composites reinforced with hybrid filler between silica from rice husk and chitosan from shrimp shell were prepared by a latex solution method. The amount of shrimp shell chitosan was varied as 0, 3, 5, and 10phr with a constant amount of rice husk silica at 10phr. The natural rubber composites with hybrid filler were prepared before mixing with vulcanizing agents using conventional curing system. The antimicrobial, absorption, and morphological properties of the natural rubber composite films and cured composites were investigated by the Agar Diffusion Method, Water Absorption Test and Scanning Electron Microscopy (SEM), respectively. Using 5phr of chitosan shows the optimum properties for used as filler incorporated with silica in natural rubber composites for medical applications.

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“…The ATR mode was selected and the scanning precision was set to 4 cm −1 . The number of scans was 32 times, and the test range was 400 cm −1 to 4000 cm −1 [24].…”

Section: Characterizationsmentioning

confidence: 99%

Effect of Nano Alumina on the Properties of Fluorinated Polyurethane

Zhang

Wang

et al. 2019

Materials

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This article selects studies on the preparation of fluorinated polyurethane-nano-alumina composite coating materials, and analyzes the anti-wear, water resistantance, and surface microstructure. Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) shows that the polyurethane synthesized in this study does not contain hydrophilic –CH2OH groups. The cavitation wear test depicts that the actual cavitation amount C of the Al2O3-FPU (4) (fluorinated polyurethane) coating is 0.9035 × 10−3 kg, and the anti-wear ability increases by 61.9% compared with FPU-0.5. The water-resistant test shows that the contact angle of water droplets on the surface of the coating increase from 95.3° of FPU-0.5 to 123.1° of Al2O3-FPU (4), and the water absorption decreases from 2.52% to 1.04%. Scanning electron microscopy (SEM) observation confirms that alumina particles can protrude on the coating surface and resist strong wear, while the C-F chain with high bond energy at the near-surface exhibits high strength and water resistance, which prevents wear from spreading deep into the coating. Differential scanning calorimetry (DSC) results show that the Tg(HS) value of the hard segment phase decreases with higher external force. Notably, when the coating is subjected to erosion, which enhances the crystallinity of the hard segment phase, the tensile strength of the hard segment phase of the coating surface is improved, which supports the wear resistance. Herein, we show that the addition of nano-alumina to fluorinated polyurethanes can control high water and abrasion resistance.

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A unique application of the second order derivative of FTIR–ATR spectra for compositional analyses of natural rubber and polychloroprene rubber and their blends

Cited by 49 publications

References 1 publication

Enhancement of Chloroprene/Natural/Butadiene Rubber Nanocomposite Properties Using Organoclays and Their Combination with Carbon Black as Fillers

Enhancement of Chloroprene/Natural/Butadiene Rubber Nanocomposite Properties Using Organoclays and Their Combination with Carbon Black as Fillers

Effect of shrimp shell chitosan loading on antimicrobial, absorption and morphological properties of natural rubber composites reinforced with silica-chitosan hybrid filler

Effect of Nano Alumina on the Properties of Fluorinated Polyurethane

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