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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"Biocomposites"”.
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Biorenewable polymer thermoplastic biocomposites
… and agave fibers were utilized as fillers in biocomposites with high-density polyethylene (HDPE), linear low-density polyethylene (LLDPE), and polypropylene (PP), as the matrix polymers. It was found that with proper pretreatments and processing conditions, it is possible to produce …
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Mechanical behavior of ultrastructural biocomposites
For numerous centuries nature has successfully developed biocomposite materials with detailed multiscale architectures to provide a material stiffness, strength and toughness. One such example is nacre, which is found in the shells of many mollusks, and consists of an inorganic phase of aragonite …
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Multiscale structural and mechanical design of mineralized biocomposites
Gastropod mollusk nacre tablets and Polypterus senegalus armored scales share common features such as a very complex and changing structure spanning several length scales. The smallest building blocks are single crystals, have dimensions of a from tens of nanometers to several microns and are …
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Investigating Acoustic Properties of Biocomposite from Waste Streams
Biocomposites are a type of material. Recently, research and development into biocomposites have experienced a resurgence, as they are environmental friendly material. As part of the “green” industries, biocomposites decrease the demands on traditional, synthetic or petroleum carbon based products. …
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Development of High-Strength Composites with Sustainable Fibers for Structural Applications
… in fused filament fabrication (FFF) to develop biocomposites. Various chemical treatments (NaOH, silane, and maleic anhydride (MA)) were applied to improve fiber compatibility with polylactic acid (PLA). Both untreated and treated fibers at 10% loading were blended with PLA and extruded into 3D …
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Diseño, desarrollo, caracterización y validación de dos novedosos biocomposites porosos y degradables impresos en 3D basados en policaprolactona con actividad regeneradora y antimicrobiana para aplicaciones en Bioingenieria del tejido óseo.
… obtenidos en ambos estudios sugieren que biocomposites hí-bridos biomiméticos óseos similares a los desarrollados en este proyecto, podrían ser excelentes candidatos para ser utilizados como scaffolds de uso común en In-geniería de Tejidos con un potencial osteoinductivo y osteogénico.
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Tissue engineering of co-cultured skin substitutes using biocomposite membranes based on collagen and polycaprolactone
… PCL, gelatin: PCL and gelatin/collagen:PCL biocomposites for manufacture of tissue engineered skin substitutes are reported. Films of collagen: PLC, gelatin: PCL (1:4, 1:8 and 1:20 w/w) and gelatin/collagen:PCL (1:8 and 1:20 w/w) biocomposites were prepared by impregnation of lyophilised …
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Water absorption of Wood Plastic Composite and Biopolymer reinforced with Switchgrass-fiber Biocomposite Materials
Biocomposites have become widely used materials these days. Due to their light weight and ability to be tailored for specific end uses they have gained a considerable ground in the high performance applications, such as aerospace and automobile industry. However, the use of polymers that can be …
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Electrochemistry of Polyaniline-DNA System.
<p>A new type of biocomposites – the polyaniline - deoxynucleic acid (PAN / DNA) and the poly-(o-phenylenediamine)-DNA (POPD-DNA) complexes can be synthesized electrochemically in acidic media in the potential range of –0.2V to 0.8 V vs. Ag/AgCl reference electrode, respectively. The …
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Harakeke fibre as reinforcement in epoxy matrix composites and its hybridisation with hemp fibre
… Aligned long or short harakeke/hemp hybrid biocomposites were prepared with different fibre lay-up and weight ratios between harakeke and hemp and their mechanical properties were assessed. While tensile properties, impact strength and fracture toughness (KIC) of the harakeke/hemp hybrid …
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Development of biomaterials from sustainably produced macroalgae feedstocks
… its characteristics for potential future use in biocomposites. In the second chapter, a comparative analysis was conducted on cellulose extracted from four macroalgae species, namely Rhizoclonium sp., Zygnema sp., Oedogonium sp., and Stigeoclonium sp. This research filled a significant gap by …
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Development of Dual Extruder Biomaterial 3D Printer
… 3D printer for the precise deposition of natural biocomposites using organic materials such as pectin, chitosan, and cellulose. Unlike traditional FDM printers that rely on thermoplastic extrusion, this printer employs a syringe-based mechanical extruder capable of depositing viscous biomaterial …
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Α-HYDROXY FATTY ACIDS AND BIOPOLYMERS: NEW FATES FOR LIPID-ENRICHED FOOD SCRAPS
… were used as base for the production of new biocomposites. In particular, these were produced with spent coffee grounds in combination with polybutylene succinate at different concentrations. Moreover, in order to study how the deprivation of lipids would impact the characteristics of the …
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Development and Characterization of sustainable Materials from invasive brown Seaweed Ruguopteryx okamurae
… first involved the production of bioplastics and biocomposites by combining freeze-dried seaweed with glycerol as a plasticizer and blending it with polycaprolactone, acylated soy protein isolate, and cassava starch. These materials were processed through injection molding and characterized for …
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Nature-Centered Materiomics: Experimental and Computational Design
… a platform for the fabrication of tunable biocomposites composed of renewable and biodegradable feedstocks, and consider Bayesian optimization as an approach to guide composite optimization and design. Finally, we extend the fabrication system to hybrid-living materials and demonstrate …
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BioLIG: Designing Biologically Derived Electronics and Their Speculative Lives
… sheets and two inks make up a toolkit to create biocomposites with different properties, colors, and textures specifically designed for prototyping sensors and circuits with transient behaviours. Through a series of characterisations, BioLIG is evaluated and demonstrates that with one material, …
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The Design Modelling of PEEK Composite for Bone Implants
… and coating deposition methods, incorporating biocomposites like calcium hydroxyapatite (cHAp)/reduced graphene oxide (rGO) to boost the material's performance. This novel approach also involves creating a novel lattice structure to mimic the bone structure within the composite for a more …
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Functional Protein Based Materials
… wheat gluten and gelatin were tested for use in biocomposites and soft actuating materials, respectively. In Chapter II, the self-assembly mechanism of trypsin hydrolyzed wheat gluten (THWG) into rigid β-sheets was applied to an aqueous polyvinyl alcohol (PVA) environment. Aqueous PVA was used in …
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Design of Engineered Biomaterial Architectures Through Natural Silk Proteins
… sericin protein was then exploited to create biocomposites capable of enhanced response and biocompatibility, through a novel protein-template strategy. In this work, sericin was added to the biocompatible and biodegradable poly(amino acid), poly(aspartic acid), to improve its pH-dependent …
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