What are the different types of plasticizers used in composite propellants?
Best insight from top research papers
Different types of plasticizers used in composite propellants include 1-methyl-4-methoxyethyl-1,2,4-triazolium chloride, 1-methyl-4-methoxyethyl-1,2,4-triazolium bis(trifluoromethylsulfonyl)imide, 1-methyl-4-methoxyethyl-1,2,4-triazolium nitrate, 1-methyl-4-ethyl acetate-1,2,4-triazolium chloride, 1-methyl-4-ethyl acetate-1,2,4-triazolium bis(trifluoromethylsulfonyl)imide, 1-methyl-4-ethyl acetate-1,2,4-triazolium nitrate . Other plasticizers used include triethylene glycol dinitrate, dioctyl azelate, dibutyl phthalate . Additionally, polyester–polyol blends resulting from recycled post-consumer polyethylene terephthalate (PET) glycolysis can be used as plasticizers . Trimethylol propane and dibutyltin dilaurate can also be used as cross-linkers for plasticizers in composite solid rocket propellants . Nitrate ester methyl trimethylol ethane trinitrate, N-(n-butyl)-N-(2-nitroxyethyl) nitramine, bis-(2,2-dinitropropyl) formal and bis-(2,2-dinitropropyl) acetal mix, nearly monodispersed low molar mass azido-terminated glycidyl azide polymer, ethylene glycol bis-(azidoacetate), and 1,2-bis-(2-azidoethoxy) ethane are other plasticizers used in polyester-based polyurethane binders . Polyglycerine polynitrates such as nitroglycerine and its derivatives can also be used as energetic plasticizers in propellants .
Answers from top 4 papers
More filters
| Papers (4) | Insight |
|---|---|
| The different types of plasticizers used in composite propellants are nitrate ester methyl trimethylol ethane trinitrate (TMETN), N-(n-butyl)-N-(2-nitroxyethyl) nitramine (Bu-NENA), bis-(2,2-dinitropropyl) formal and bis-(2,2-dinitropropyl) acetal mix 1:1 (BDNPF-A), nearly monodispersed low molar mass azido-terminated glycidyl azide polymer (GAP-A), ethylene glycol bis-(azidoacetate) (EGBAA), and 1,2-bis-(2-azidoethoxy) ethane (TEGDA) or BATEG. | |
01 Apr 2019 | The paper mentions that different plasticizers were used in the composite solid rocket propellants (CSRP) based on GAP polymeric matrix. However, it does not explicitly mention the specific types of plasticizers used. |
| The paper mentions the use of triethylene glycol dinitrate (TEGDN) as an energetic plasticizer in the composite propellants. | |
| The paper does not mention the different types of plasticizers used in composite propellants. |
Related Questions
How do the properties of the supplementary cementitious material and plasticizer affect the properties of the combined material?4 answersThe properties of supplementary cementitious materials (SCMs) and plasticizers have a significant impact on the properties of the combined material. The pore-solution chemistry of blended cements, which includes SCMs, plays a crucial role in cement hydration and durability. The use and dosage of plasticizers, such as superplasticizers, in concrete formulations are influenced by variations in their compositions and those of cement. The combination of hydroxypropyl guar stabilizing agents (HPG) and polycarboxylate superplasticizers (PCE) affects the rheological behavior of cement pastes, with the viscosity decreasing and the yield stress maintained. The microstructural properties of ultra-high-performance, strain-hardening cementitious composites (UHP–SHCCs) are influenced by the presence of reactive and non-reactive mineral additives, which impact the compressive strength, tensile behavior, and fiber-matrix interaction. The compatibility of plasticizers with different batches of cement is an important consideration, with some additives showing good compatibility and stability regardless of the characteristics of the concrete mix.
What are the different types of fillers that can be used in polymer composites?5 answersPolymer composites can be filled with various types of fillers to enhance their properties. These fillers include glass, ceramic, and carbonaceous fillers. Another type of filler is hydroxyapatite (HAp), which can be extracted from biowaste such as animal bone, teeth, and eggshell. Additionally, fillers such as magnetic, metallic, carbon, and high permittivity dielectric materials can be used in polymer composites. Silica-based fillers with different particle sizes can also be used in polymer composites. These fillers offer a range of advantages and disadvantages, and their selection depends on the desired properties of the composite material.
What are the different types of fillers that can be used in polymer composites for dry application?5 answersVarious types of fillers can be used in polymer composites for dry applications. Inorganic fillers such as Talc, BaTiO3, CaCO3, Slate Fiber, Fly Ash, Metal Powders, Ceramic powder, and Zeolites have been widely studied and used in the plastic industry. Cellulose fibers, including pure cellulose fibers of different elongation coefficients, as well as mineral nanocomponents like precipitated calcium carbonate and montmorillonite, have also been used as fillers in polymer composites. Particulate fillers like Barium Sulphate, Carbon Black, Clays, Feldspars, Glass Flakes, Micas, Magnetite, Talcs, and Wollastonites have been extensively studied and used in thermoplastics, thermosets, and elastomers. Silica nanoparticles, especially those functionalized with different modifiers like silanes, have shown promise as fillers for various polymers. Additionally, researchers have explored the use of green nanofillers derived from animal, plant, and natural sources as alternative fillers in polymer composites.
What are the different types of organic fillers used in composite materials?3 answersOrganic fillers used in composite materials include graphene nanoplatelets (GR), boron nitride, carbon fillers, cellulose, clay, silica, titanium dioxide, and zeolite, and eggshell powder and walnut shell powder.
What is the type of composite materials?5 answersComposite materials are materials that are created by combining several different components in a way that allows the best qualities of each component to be used. They are classified based on their matrix and reinforcement types. The four key classes of composites are polymer matrix composites (PMCs), metal matrix composites, carbon matrix composites, and ceramic matrix composites. PMCs are the most widely used type of composites. Composites offer material characteristics that are different from the individual components and can be engineered to entail synergistic advantages such as high strength, corrosion resistance, electrical or thermal conductivity, and low cost. The composite material is generally defined by the matrix, such as metal-matrix composite, ceramic-matrix composites, and polymer-matrix composites.
What is the effect of plasticizer type on the water absorption of the polymer?2 answersThe effect of plasticizer type on the water absorption of the polymer varies depending on the specific plasticizer used. In the study by Kalaouzis and Demertzis, it was found that the sorption of water vapors increases with increasing the amount of plasticizer, but decreases with increasing temperature. Guo found that low concentrations of plasticizer caused a decrease in water permeability through cellulose acetate, while higher concentrations led to an increase in permeability. Di Sarli et al. observed that increasing the resin:plasticizer ratio in vinyl varnishes resulted in a decrease in water permeability, regardless of the type of plasticizer used. Verbeek et al. found that different high molecular mass plasticizers had varying effects on the water absorption of bloodmeal-based thermoplastics, with propylene glycol, diethylene glycol, and triethylene glycol being the most efficient in increasing ductility. Therefore, the effect of plasticizer type on water absorption depends on the specific polymer and plasticizer combination.