Novel Biocomposites Based on Sunflower Oil and Alfa Fibers as Renewable Resources

Kadem, Sihem; Irinislimane, Ratiba; Belhaneche‐Bensemra, Naïma

doi:10.1007/s10924-018-1196-5

Cited by 18 publications

(14 citation statements)

References 29 publications

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“…The broaden peak centered at 3450 cm −1 represents the hydroxyl groups (‐OH) of cellulose stretching . The strong increase of the peak intensity for TAF shows the availability of hydroxyl groups and indicates that the alkali treatment removed the non‐cellulosic materials . The 2890 cm −1 peak corresponds to C−H stretching of CH and CH 2 in cellulose .…”

Section: Resultsmentioning

confidence: 99%

“…The strong increase of the peak intensity for TAF shows the availability of hydroxyl groups and indicates that the alkali treatment removed the non‐cellulosic materials . The 2890 cm −1 peak corresponds to C−H stretching of CH and CH 2 in cellulose . The peak at 1750 cm −1 associated to the carbonyl groups (C=O) of hemicellulose, pectin and lignin stretching vibration was strongly removed after treatment.…”

Section: Resultsmentioning

confidence: 99%

“…This plant is commonly used in the production of pulp for paper industry . Nowadays, it is widely used as polymeric reinforcement due to its exceptional properties, which give high performance materials in addition to its biodegradability and renewability . However, the main problem of those natural fibers is their hydrophilic nature, which affects the fiber‐matrix adhesion and causes damages to composite materials .…”

Section: Introductionmentioning

confidence: 99%

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Non‐Isothermal Curing Kinetics of Alkali‐Treated Alfa Fibers/Polybenzoxazine Composites Using Differential Scanning Calorimetry

2020

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The exploration of curing process of benzoxazine resins, which possess outstanding features, is crucial for practical and advanced applications. In this study, bisphenol A-aniline based benzoxazine (BA-a) composites reinforced with alkali treated alfa fibers (TAF) were prepared. The influence of different loadings of the TAF on the curing kinetics of BA-a was investigated using non-isothermal differential scanning calorimetry (DSC) at different heating rates. Isoconversional integral methods or model free kinetics, namely, the iterative Kissinger-Akahira-Sunose (it-KAS), iterative Flynn-Wall-Ozawa (it-FWO), Sbirrazzuoli methodology (VYA/CE) and Trache-Abdelaziz-Siwa-ni (TAS) methods have been applied to the experimental data in order to evaluate the curing kinetic parameters. The study revealed that the presence of TAF improved the crosslinking reaction of benzoxazine and reduced the activation energy. The pre-exponential factor exhibited the same trend as the activation energy. The reaction model, examined for all composites, showed that all systems were accurately presented by an autocatalytic reaction model. The Avrami-Erofeev model was the most appropriate for describing the cure kinetics and revealed a good agreement with experimental data.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Non‐Isothermal Curing Kinetics of Alkali‐Treated Alfa Fibers/Polybenzoxazine Composites Using Differential Scanning Calorimetry

2020

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“…The increase in degradation temperature was observed due to formation of the hydrogen bonding between cellulose hydroxyl groups and the resin's carboxylic groups. [ 286 ]…”

Section: Potential Use Of Lipids In Food Packaging Applicationsmentioning

confidence: 99%

Recent Advances in Lipid Derived Bio‐Based Materials for Food Packaging Applications

Zubair

Pradhan

Arshad

et al. 2021

Macro Materials & Eng

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The utilization of lipids is presently in the spotlight of food industry as they are one of novel renewable and sustainable raw materials. Lipids derived materials are considered as a promising alternate to petro‐based polymers as they are sustainable, biorenewable, biodegradable, and environmentally benign. These unique attributes draw the attention of scientific community for the use of lipids in food packaging applications with a potential to compete with fossil fuel derived polymers. This paper reviews recent advances in the use of lipids and their effect on the barrier, antimicrobial, antioxidant, and mechanical properties of films, coating and nanocomposites for food packaging applications. Modification of lipids and its chemical interactions with other biopolymers during processing for the synthesis of different materials are also discussed. Global patents and research trend in use of lipids for the preparation of biocomposites are also described. The role of lipids in the circular economy is highlighted and life cycle assessment of lipids derived products is outlined with examples. The review is concluded with synoptic view of existing and forthcoming potential use of lipids in various food packaging applications.

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“…98 Acrylation reduces the fibers hydrophilicity. 99,100 Table 9 presents pertinent works on acrylation treatment in NFRCs.…”

Section: Surface Modifications By Chemical Treatmentsmentioning

confidence: 99%

Chemical, biological, and nanoclay treatments for natural plant fiber-reinforced polymer composites: A review

Kenned

Sankaranarayanasamy

Kumar

2020

Polymers and Polymer Composites

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Natural plant fiber-reinforced polymer composites have been in the limelight in the field of materials science for their mechanical properties, economy, and eco-friendliness. Properties of such novel composites depend on the adhesion and interaction between the fibers and the polymer matrix. Consequently, poor interaction can lead to declined mechanical properties, particularly strength. Surface modifications of fibers are carried out to enhance the bonding with the matrix by certain chemical treatments that remove hydroxyl groups in the amorphous cellulose region, making them hydrophobic and hence compatible with the matrix. Doing so also strengthens the composites, widening their scope of application. This review article provides comprehensive information about various surface modification techniques that include alkali, silane, acetylation, permanganate, peroxide, benzoylation, acrylation, acrylonitrile grafting, isocyanate, addition of maleated coupling agents, and fungal treatments. The working mechanisms and the effects of such treatments on mechanical strength are also elucidated. Furthermore, this review provides an overview of nanoclay inclusion in polymers, their addition techniques, and the augmentation of the mechanical properties of polymer matrix composites. The article concludes along with the field of applications, summary of pertinent challenges, and directions for future work.

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Novel Biocomposites Based on Sunflower Oil and Alfa Fibers as Renewable Resources

Cited by 18 publications

References 29 publications

Non‐Isothermal Curing Kinetics of Alkali‐Treated Alfa Fibers/Polybenzoxazine Composites Using Differential Scanning Calorimetry

Non‐Isothermal Curing Kinetics of Alkali‐Treated Alfa Fibers/Polybenzoxazine Composites Using Differential Scanning Calorimetry

Recent Advances in Lipid Derived Bio‐Based Materials for Food Packaging Applications

Chemical, biological, and nanoclay treatments for natural plant fiber-reinforced polymer composites: A review

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