Green Nanocomposites from Rosin-Limonene Copolymer and Algerian Clay

Derdar, Hodhaifa; Mitchell, Geoffrey R.; Mahendra, Vidhura; Benachour, Mohamed; Haoue, Sara; Cherifi, Zakaria; Bachari, Khaldoun; Harrane, Amine; Méghabar, Rachid

doi:10.3390/polym12091971

Cited by 9 publications

(6 citation statements)

References 34 publications

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“…The main goal of this research is to look into the catalytic properties of a natural clay (Mag-H + ) as a new non-toxic catalyst for the copolymerization of limonene and styrene and Mag-CTA + as a new nano-reinforcing filler for the fabrication of nanocomposites based on styrene-limonene copolymer (lim-co-sty) using an ultrasonic assisted approach to improve the copolymer’s thermal and mechanical properties. We previously showed the benefits of various uses of this catalyst type and the kind of nano-reinforcing filler in different polymerization reactions and nanocomposites synthesis in our published work [ 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Copolymers and Nanocomposites from Limonene, Styrene and Organomodified-Clay Using Ultrasonic Assisted Method

et al. 2022

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In the present work, we report a simple synthesis method for preparation of copolymers and nanocomposites from limonene and styrene using clay as a catalyst. The copolymerization reaction is carried out by using a proton exchanged clay as a catalyst called Mag-H+. The effect of temperature, reaction time and amount of catalyst were studied, and the obtained copolymer structure (lim-co-sty) is characterized by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (1H-NMR) and differential scanning calorimetry (DSC). The molecular weight of the obtained copolymer is determined by gel permeation chromatography (GPC) and is about 4500 g·mol−1. The (lim-co-sty/Mag 1%, 3%, 7% and 10% by weight of clay) nanocomposites were prepared through polymer/clay mixture in solution method using ultrasonic irradiation, in the presence of Mag-CTA+ as green nano-reinforcing filler. The Mag-CTA+ is organophilic silicate clay prepared through a direct exchange process, using cetyltrimethylammonuim bromide (CTAB). The prepared lim-co-sty/Mag nanocomposites have been extensively characterized by FT-IR spectroscopy, X-ray diffraction (XRD), scanning electronic microscopy (SEM) and transmission electronic microscopy (TEM). TEM analysis confirms the results obtained by XRD and clearly show that the obtained nanocomposites are partially exfoliated for the lower amount of clay (1% and 3% wt) and intercalated for higher amounts of clay (7% and 10% wt). Moreover, thermogravimetric analysis (TGA) indicated an enhancement of thermal stability of nanocomposites compared with the pure copolymer.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Copolymers and Nanocomposites from Limonene, Styrene and Organomodified-Clay Using Ultrasonic Assisted Method

et al. 2022

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“…It features an average low molecular weight of 400 Da [30]. Rosin is a bio-sourced material known as a very good tackifier because of its very low surface tension when mixed with the correct solvent [31]. However, at room temperature, it remains very brittle, with a toughness in the order of magnitude of tens of kilopascals; this prohibits it from being included in most industrial applications in its pristine state.…”

Section: Beeswax-rosin Coatingmentioning

confidence: 99%

A Bio-Based Render for Insulating Agglomerated Cork Panels

et al. 2021

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Natural and bio-based thermal insulation materials play an important role in the lifecycle impact of buildings due to their influence on the amount of energy used in indoor temperature control and the environmental impact of building debris. Among bio-based materials, cork is widespread in the Mediterranean region and is one of the bio-based materials that is most frequently used as thermal insulation for buildings. A particular problem is the protection of the cork-agglomerated panels from external stress and adverse weather conditions; in fact, cork granulates are soft and, consequently, cork panels could be damaged by being hit or by excessive sun radiation. In this study, an innovative external coat for cork-agglomerated panels made of a blending composite of beeswax and rosin (colophony) is proposed. The performance of this composite, using different amounts of elements, was analysed to discover which mix led to the best performance. The mix of 50% beeswax and 50% rosin exhibited the best performance out of all the mixes. This blend demonstrated the best elongation and the lowest fracture density, characteristics that determine the durability of the coating. A performance comparison was carried out between cork panel samples coated with lime render and beeswax–rosin coating. The coating of beeswax and resin highlighted a detachment value about 3.5 times higher than the lime plaster applied on the side of the cork.

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“…The main goal of this work is to use an organo-modified montmorillonite clay named Mag-CTA + as a new nano-reinforcing filler in order to improve thermal properties of styrene-limonene copolymer, also, to prepare nanocomposites out of green raw materials (limonene and clay). In previously published work, we have shown the advantage of applying this type of nano-reinforcing fillers in several nanocomposites synthesis [22][23][24]. It is preferred for its many advantages such as a very low purchase price compared to other nano-reinforcing fillers.…”

Section: Compositesmentioning

confidence: 99%

Polymer-Clay Nanocomposites: Exfoliation and Intercalation of Organophilic Montmorillonite Nanofillers in Styrene–Limonene Copolymer

et al. 2021

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Nanocomposites from Styrene-Limonene copolymers and Algerian organophilic-clay named Maghnite-CTA + (Mag-CTA + ), were prepared by in-situ polymerization using different amounts (2, 5, and 10% by weight) of clay and Azobisisobutyronitrile (AIBN) as a catalyst. The Mag-CTA + is an organophilic silicate clay prepared through a direct exchange process, using Cetyltrimethylammonuim bromide (CTAB) in which it used as green nano-filler. The preparation method of nanocomposites was studied in order to determine and improve structural, morphological and thermal properties of Sty-Lim copolymer. The structure and morphology of the obtained nanocomposites (Sty-Lim/Mag) were determined using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electronic microscopy (SEM) and transmission electronic microscopy (TEM). The analyses confirmed the chemical modification of clay layers and the intercalation of Sty-Lim copolymer within the organophilic clay sheets. Exfoliated structure was obtained for the lower amount of clay (2 wt %), while intercalated structures were detected for higher amounts of clay (5 and 10 wt %). The thermal properties of the obtained nanocomposites were studied by thermogravimetric analysis (TGA) and show a significant improvement in the thermal stability compared with the pure copolymer. The obtained nanocomposites show an optimal degradation temperature of 320°C.

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Green Nanocomposites from Rosin-Limonene Copolymer and Algerian Clay

Cited by 9 publications

References 34 publications

Synthesis and Characterization of Copolymers and Nanocomposites from Limonene, Styrene and Organomodified-Clay Using Ultrasonic Assisted Method

Synthesis and Characterization of Copolymers and Nanocomposites from Limonene, Styrene and Organomodified-Clay Using Ultrasonic Assisted Method

A Bio-Based Render for Insulating Agglomerated Cork Panels

Polymer-Clay Nanocomposites: Exfoliation and Intercalation of Organophilic Montmorillonite Nanofillers in Styrene–Limonene Copolymer

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