Dimensional stability of natural fiber-based and hybrid composites

Taib, Mohamad Nurul Azman Mohammad; Julkapli, Nurhidayatullaili Muhd

doi:10.1016/b978-0-08-102292-4.00004-7

Cited by 28 publications

(18 citation statements)

References 24 publications

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“…Recycling of composites is an attractive subject of research in the future that will provide socio-economic benefits. 92–94…”

Section: Cellulosic Natural Fibersmentioning

confidence: 99%

“…Recycling of composites is an attractive subject of research in the future that will provide socio-economic benefits. [92][93][94] Bhuvaneshwarri et al studied the surface modification of sisal fiber: SEM images of untreated and sodium hydroxide-treated sisal fibers at various concentrations and treatment periods are shown in Figure 10(a)-(c). The sisal fiber that has not been treated exhibits various impurities and waxes.…”

Section: Sisal Fibermentioning

confidence: 99%

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A Review of Cellulosic Natural Fibers’ Properties and Their Suitability as Reinforcing Materials for Composite Panels and Applications

Arı

Karahan

Ahmed

et al. 2023

AATCC Journal of Research

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There has been much effort to provide eco-friendly and biodegradable materials for the next generation of composite products owing to global environmental concerns and increased awareness of renewable green resources. Increased use of natural materials in composites has led to a reduction in greenhouse gas emissions and the carbon footprint of composites. In addition to the benefits obtained from green materials, there are some challenges in working with them, such as poor compatibility between the reinforcing natural fiber and matrix and the relatively high moisture absorption of natural fibers. Green composites can be a suitable alternative for petroleum-based materials. However, before this can be accomplished, a number of issues need to be addressed, including poor interfacial adhesion between the matrix and natural fibers, moisture absorption, poor fire resistance, low impact strength, and less durability. Several researchers have studied the properties of natural fiber composites. These investigations have resulted in developing several procedures for modifying natural fibers and resins. To address the increasing demand to use eco-friendly materials in different applications, an up-to-date review of natural fiber and resin types and sources, modification, and processing techniques, physical and mechanical behaviors, applications, life-cycle assessment, and other properties of green composites is required to provide a better understanding of the behavior of green composites.

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“…Recycling of composites is an attractive subject of research in the future that will provide socio-economic benefits. 92–94…”

Section: Cellulosic Natural Fibersmentioning

confidence: 99%

Section: Sisal Fibermentioning

confidence: 99%

A Review of Cellulosic Natural Fibers’ Properties and Their Suitability as Reinforcing Materials for Composite Panels and Applications

Arı

Karahan

Ahmed

et al. 2023

AATCC Journal of Research

View full text Add to dashboard Cite

show abstract

“…If adhesion is poor between two different polymers, it can lead to brittleness in the final product [153]. Interfacial adhesion is improved when the two different layers have similar properties, such as hydrophilicity [154]. Adhesion can also be achieved by polar functional groups [155].…”

Section: Dosage Shape Size Complexitymentioning

confidence: 99%

Polymers for Extrusion-Based 3D Printing of Pharmaceuticals: A Holistic Materials–Process Perspective

et al. 2020

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Three dimensional (3D) printing as an advanced manufacturing technology is progressing to be established in the pharmaceutical industry to overcome the traditional manufacturing regime of 'one size fits for all'. Using 3D printing, it is possible to design and develop complex dosage forms that can be suitable for tuning drug release. Polymers are the key materials that are necessary for 3D printing. Among all 3D printing processes, extrusion-based (both fused deposition modeling (FDM) and pressure-assisted microsyringe (PAM)) 3D printing is well researched for pharmaceutical manufacturing. It is important to understand which polymers are suitable for extrusion-based 3D printing of pharmaceuticals and how their properties, as well as the behavior of polymer–active pharmaceutical ingredient (API) combinations, impact the printing process. Especially, understanding the rheology of the polymer and API–polymer mixtures is necessary for successful 3D printing of dosage forms or printed structures. This review has summarized a holistic materials–process perspective for polymers on extrusion-based 3D printing. The main focus herein will be both FDM and PAM 3D printing processes. It elaborates the discussion on the comparison of 3D printing with the traditional direct compression process, the necessity of rheology, and the characterization techniques required for the printed structure, drug, and excipients. The current technological challenges, regulatory aspects, and the direction toward which the technology is moving, especially for personalized pharmaceuticals and multi-drug printing, are also briefly discussed.

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“…The latter reflects the intermolecular interaction between layers of printed material, directly related to the construction of the dosage form. The adhesion can be determined by surface tension measuring techniques or by torsion tests on the printed specimen [ 140 ] Adhesion is also related to the mechanical properties, namely brittleness [ 141 , 142 ].…”

Section: Characterization Of Filaments and 3d Dosage Forms Producementioning

confidence: 99%

Polymer Selection for Hot-Melt Extrusion Coupled to Fused Deposition Modelling in Pharmaceutics

et al. 2020

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Three-dimensional (3D) printing offers the greatest potential to revolutionize the future of pharmaceutical manufacturing by overcoming challenges of conventional pharmaceutical operations and focusing design and production of dosage forms on the patient’s needs. Of the many technologies available, fusion deposition modelling (FDM) is considered of the lowest cost and higher reproducibility and accessibility, offering clear advantages in drug delivery. FDM requires in-house production of filaments of drug-containing thermoplastic polymers by hot-melt extrusion (HME), and the prospect of connecting the two technologies has been under investigation. The ability to integrate HME and FDM and predict and tailor the filaments’ properties will extend the range of printable polymers/formulations. Hence, this work revises the properties of the most common pharmaceutical-grade polymers used and their effect on extrudability, printability, and printing outcome, providing suitable processing windows for different raw materials. As a result, formulation selection will be more straightforward (considering the characteristics of drug and desired dosage form or release profile) and the processes setup will be more expedite (avoiding or mitigating typical processing issues), thus guaranteeing the success of both HME and FDM. Relevant techniques used to characterize filaments and 3D-printed dosage forms as an essential component for the evaluation of the quality output are also presented.

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Dimensional stability of natural fiber-based and hybrid composites

Cited by 28 publications

References 24 publications

A Review of Cellulosic Natural Fibers’ Properties and Their Suitability as Reinforcing Materials for Composite Panels and Applications

A Review of Cellulosic Natural Fibers’ Properties and Their Suitability as Reinforcing Materials for Composite Panels and Applications

Polymers for Extrusion-Based 3D Printing of Pharmaceuticals: A Holistic Materials–Process Perspective

Polymer Selection for Hot-Melt Extrusion Coupled to Fused Deposition Modelling in Pharmaceutics

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