Stearic acid as coupling agent in fly ash reinforced recycled polypropylene matrix composites: Structural, mechanical, and thermal characterizations

2013 ◽  
Vol 130 (3) ◽  
pp. 1996-2004 ◽  
Author(s):  
Shubhalakshmi Sengupta ◽  
Pulakesh Maity ◽  
Dipa Ray ◽  
Aniruddha Mukhopadhyay
Keyword(s):  
Fly Ash ◽  
Stearic Acid ◽  
Coupling Agent ◽  
Matrix Composites ◽  
Recycled Polypropylene ◽  
Polypropylene Matrix

Development and Characterizations of Green Coupling Agent Coated Fly Ash Reinforced Recycled Polypropylene Matrix Composites

2013 ◽  
Vol 747 ◽  
pp. 707-710
Author(s):  
Shubhalakshmi Sengupta ◽  
Sunanda Sain ◽  
Dipa Ray ◽  
Aniruddha Mukhopadhyay
Keyword(s):  
Fly Ash ◽  
Fracture Surface ◽  
Flexural Strength ◽  
Palmitic Acid ◽  
Surface Analysis ◽  
Coupling Agent ◽  
Matrix Composites ◽  
Melt Mixing ◽  
Recycled Polypropylene ◽  
Fracture Surface Analysis

Two industrial wastes fly ash and polypropylene was used to develop novel composite materials. The fly ash (FA) particles were coated with stearic acid (SA) and palmitic acid (PA) in 1 wt% concentration. The surface coated fly ash particles were incorporated as filler in recycled polypropylene (RPP) matrix composites by melt mixing in 1:1 weight ratio. The composites were tested for their flexural properties, impact behaviour, dynamic mechanical properties and fracture surface analysis. Increase in flexural strength, modulus and impact strength was observed in the coated FA/RPP composites. 1wt % PA coated FA/RPP composites showed great increase in flexural strength. In 1 wt% SA treated FA/RPP (RFASA1) composites highest shift in glass transition to a higher temperature were found. Fracture surface analysis revealed efficient filler matrix interactions in the SA and PA treated FA/RPP composites. Thus, green, renewable, inexpensive chemicals like stearic and palmitic acid was found to be an effective coupling agent in FA/RPP composites.

Thermal and Structural Characterization of Furfuryl Palmitate Coated Fly Ash Reinforced Recycled Polypropylene Matrix Composites

2012 ◽  
Vol 584 ◽  
pp. 551-555 ◽  
Author(s):  
Shubhalakshmi Sengupta ◽  
Dipa Ray ◽  
Aniruddha Mukhopadhyay
Keyword(s):  
Fly Ash ◽  
Coupling Agent ◽  
Low Cost ◽  
Weight Ratio ◽  
Xrd Analysis ◽  
Matrix Composites ◽  
Scanning Calorimetry ◽  
Melt Mixing ◽  
Recycled Polypropylene ◽  
Composite Samples

Abstract: The fly ash (FA) particles were coated with furfuryl palmitate (FP) in different weight % like 1, 2, 3 and 5. The FP coated fly ash particles were incorporated as filler in recycled polypropylene (RPP) matrix composites by melt mixing in 1:1 weight ratio. X-ray diffraction (XRD) analysis, Dynamic Mechanical Analysis, Differential scanning calorimetry (DSC), and Thermogravimetric analysis (TGA) of the composite samples were carried out. The presence of the coupling agent FP resulted in changes in the packing order and structural properties of the composites. It also influenced the alignment of RPP molecules with better filler –matrix interaction in 2 wt % FP coated composite as ascertained from the DSC and DMA analysis. Distinct shift in the glass transition temperature was also observed in 2 wt % FP coated composite samples. However significant improvement in the thermal stability was not observed. Thus, an unconventional, renewable, low cost coupling agent FP was found to influence the structural and thermal properties of the RPP/FA composites significantly.

Development of Recycled Polypropylene Matrix Composites Reinforced with Fly Ash

2009 ◽  
Vol 29 (4) ◽  
pp. 510-517 ◽  
Author(s):  
Keya Das ◽  
Dipa Ray ◽  
Kuntal Adhikary ◽  
N.R. Bandyopadhyay ◽  
A.K. Mohanty ◽  
...  
Keyword(s):  
Fly Ash ◽  
Matrix Composites ◽  
Recycled Polypropylene ◽  
Polypropylene Matrix

Furfuryl palmitate coated fly ash used as filler in recycled polypropylene matrix composites

2011 ◽  
Vol 42 (7) ◽  
pp. 1834-1839 ◽  
Author(s):  
Shubhalakshmi Sengupta ◽  
Kuntal Pal ◽  
Dipa Ray ◽  
Aniruddha Mukhopadhyay
Keyword(s):  
Fly Ash ◽  
Matrix Composites ◽  
Recycled Polypropylene ◽  
Polypropylene Matrix

scholarly journals Eco-friendly recycled polypropylene matrix composites incorporated with geopolymer concrete waste particles

2020 ◽  
Vol 9 (3) ◽  
pp. 3084-3090
Author(s):  
Flávio James Humberto Tommasini Vieira Ramos ◽  
Raphael Henrique Morais Reis ◽  
Iryna Grafova ◽  
Andriy Grafov ◽  
Sergio Neves Monteiro
Keyword(s):  
Geopolymer Concrete ◽  
Matrix Composites ◽  
Recycled Polypropylene ◽  
Polypropylene Matrix ◽  
Waste Particles

Development of Recycled Polypropylene Matrix Composites Reinforced with Waste Jute Caddies

2009 ◽  
Vol 29 (2) ◽  
pp. 201-208 ◽  
Author(s):  
Keya Das ◽  
Kuntal Adhikary ◽  
Dipa Ray ◽  
N.R. Bandyopadhyay
Keyword(s):  
Matrix Composites ◽  
Recycled Polypropylene ◽  
Polypropylene Matrix

Studies on the effects of cenosphere on polypropylene matrix using  silane coupling agent

2018 ◽  
Vol 31 (11) ◽  
pp. 1510-1528
Author(s):  
Mahendrasinh Raj ◽  
Sagar Joshi ◽  
Ravikumar Savaliya ◽  
Lata Raj
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Composite System ◽  
Chemical Resistance ◽  
Surface Characteristics ◽  
Interfacial Interaction ◽  
Good Combination ◽  
Matrix Composites ◽  
Silane Coupling ◽  
Polypropylene Matrix

Present research concentrates on the effects of a silane coupling agent on the properties and dispersibility of the polypropylene (PP)-cenosphere composite system. Improving the interfacial interaction between the hydrophobic PP matrix and cenosphere particles is important to get a good combination of properties. 3-Aminopropyltriethoxysilane and glycidyl methacrylate–grafted polypropylene (PP-g-GMA) were used as a coupling agent and compatibilizer, respectively. The surface characteristics of untreated and treated cenosphere and PP-g-GMA were characterized by Fourier transform infrared spectroscopy. The silane treated and untreated cenosphere particles were incorporated as fillers into PP and PP-g-GMA matrix composites by mixing at different weight ratios. Such cenosphere-filled polymer composites possess attractive mechanical, thermal, morphological, flow, dispersion and chemical resistance properties.

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