Global ETD Search
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 17 of 17 for “"Flame retardancy"”.
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Telechelic Polyetherimides with Functionalized End Groups for Enhancement of Mechanical Strength, Flame Retardancy, and Optical Properties
… or viscosity but also enhance the mechanical and flame retardancy. In addition, the yellow to amber color of PEIs limits its applications in high-tech fields such as microelectronics and optoelectronics. Thus, a fundamental study of how end group and molecular weight affect the optical properties …
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Development of eco-friendly flame retardant fabric using phosphorus based intumescence chemistry
<p>The research aims at developing Eco-friendly flame retardant textile fabric using phosphorous based intumescence chemistry. Phosphorous in the structure of Spirocyclic pentaerythriol diphosphoryl chloride (SPDPC) acts as the main group to impart flame retardancy. Intermediate compounds were …
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Nanoenhanced Polyurea As A Blast Resistant Coating For Concrete Masonry Walls
… many available protective coatings are not flame retardant. This thesis focuses on nanoenhanced polyurea for applications in improving blast resistance, while possessing improved flame retardancy, of concrete masonry walls. The polyurea that is being researched is enhanced with nanoadditives …
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BIOINSPIRED POLYAMIDOAMINES AS INNOVATIVE FLAME RETARDANTS FOR CELLULOSIC FABRICS
… derived from natural a-amino acids as effective flame retardants for cotton fabrics; 2. Study of the polyamidoamine decomposition products upon heating; 3. Phosphorous-sulphur-based polyamidoamines as flame retardants for cotton fabrics; 4. Study of the synergism between a-aminoacid …
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Anionic Amino-Cope Rearrangement Studies and Development of Designer Sulfur-Rich Materials using Sulfur, Sulfur Monochloride and Dithiophosphoric Acids
… thermomechanical, optical properties and flame retardancy.
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Aplicação de métodos experimentais alternativos para avaliação da retardância à chama em madeiras
Evaluates experimentally the flame retardancy of woods by means of test methods not adopted by the current Brazilian flammability classification of materials. So, a phosphorus-based flame retardant was applied on the surface of samples of E. dunnii, P. elliottii and MDF. The evaluation of …
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Synthesis and characterization of triphenylphosphine oxide containing monomers and high performance polymeric materials
… behavior in the polymers, thus imparting flame retardancy into the polymeric systems.
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Relationships between polymer additive molecular structure and intumescent flame retardant behaviour.
… and their ability to confer intumescent flame retardant properties on the resulting polymers. The development of intumescent fire retardants is discussed along with the principles of flame retardancy in general. Much of the work centred around the chemistry of a key starting material, …
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Polyethylene-montmorillonite nanocomposites
… strength, electrical erosion resistance and flame retardancy. In order to disperse montmorillonite clay (MMT) into polyethylene(PE), the clay sheets need to be rendered organophilic. Masterbatches with a high level (~40 %wt) of organomodified clay can then be dispersed into a host by a simple …
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Preparación de nuevos nanocomposites multifuncionales de matriz epoxi basados en el empleo de materiales grafénicos
… electrical and thermal conductivity and flame retardancy of materials were defined by the chemical nature of the different types of GRMs studied as well as their interaction with the other loads and with the polymer. Among the graphene materials investigated, a multilayer pseudopristine …
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Synthesis and characterization of soluble, melt-processible aromatic poly(amide-imides)
… in existing properties such as increased flame-retardancy and elevated glass transition temperatures.
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New family of unsaturated polyamides from novel long-chain biomass-derived diacids
… super-hydrophobicity, corrosion resistance, and flame retardancy by polymer or monomer functionalization.</p>
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Synthesis and characterization of high performance polymeric materials: poly(arylene ethers), polyamides, polyesters and liquid crystalline polyarylates
… suggested that these polymers were potentially flame-resistant materials. The AB type halogenophenols were also polymerized in the presence of diphenylsulfone as a diluent and potassium carbonate as a base at elevated temperatures. Poly(ε-caprolactam) (Nylon 6) copolymers were prepared by the …
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Innovative, Platy Nano-Additives as Efficient Flame Retardants for Polymer Nanocomposites
… layered materials (nano-additives) as innovative flame retardants for polymer nanocomposites. In particular, polystyrene (PS) nanocomposites were prepared with a variety of nano-additives including layered double hydroxides (LDHs), hectorite (hect), graphite oxide (GO), or a combination of these. …
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Mg-Al Layered Double Hydroxide: A Potential Nanofiller and Flame-Retardant for Polyethylene
… hydroxide (LDH) as a potential nanofiller and flame-retardant for polymers with special reference to polyethylene. LDH is a mixed hydroxide of di- and trivalent metal ions that crystallizes in the form of mineral brucite. The basic reason for selecting LDH or more specifically …
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Melt Synthesis, Structural, Characterization and Scaling of Swelling 2:1-Layer Silicate Materials
… have high potential for barrier application and flame retardancy. Furthermore, the lithium fluorohectorite was synthesized in large scale.
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Polyelectrolyte complexes as building blocks for gas barrier coatings and fire-safe lightweight materials
L'abstract è presente nell'allegato / the abstract is in the attachment