Using potential of filament-wound carbon/glass polymeric composites as rocket motor thermal insulation

Abstract

The study aim is to develop hybrid filament-wound polymeric composites based on flame retardant polyester resin (UPe) and multi-layer structured glass or combined carbon and glass fibers for use as ablative thermal insulation of rocket motor by wet filament winding technique. The composites have a multi-layered structure consisting of two layers of carbon (CF) or glass woven fabric (GF) and one layer of carbon or glass direct roving (CR or GR, respectively), repeated in three cycles. Structural analysis, performed using FTIR spectroscopy and dynamical-mechanical analysis, confirm highly polymerized network. Lower values of the tanδ peak height indicate improved interfacial adhesion between carbon/glass fibers and UPe. The improvements of thermal insulation index of 37% and erosion rate of 38.6% at 180°C are achieved for combined carbon/glass fiber–based composite compared to the neat UPe. Tensile and interlaminar shear properties are investigated according to the fiber orientation and the highest values of tensile and interlaminar shear strengths are obtained for composites with longitudinal orientation, 417.48 MPa and 22.30 MPa, respectively. Compared to the neat UPe, which degrades after 50 s at 3000°C, the composites are stable up to 192 s.

Synthesis, Characterization and Application of Biobased Unsaturated Polyester Resin Reinforced with Unmodified/Modified Biosilica Nanoparticles

“…The temperature dependences of storage modulus (G ) and damping factor (tanδ) of cured b-UPR and biosilica-based composites versus T are shown in Figure 12. An increase in temperature causes a decrease in G for all samples, which is in accordance with the greater movement of the polymer segments at higher temperatures [50]. The cross-linking density (ν) of the cured b-UPR resin and biosilica-based composites was calculated from G RP-50 • C according to Equation (1):…”

“…The increase in T g for b-UPR/SiO 2 -M and b-UPR/SiO 2 -V composites occurs due to the immobilization of the polymer macromolecular chains (restricted chain mobility), which is caused by attractive intermolecular interactions and covalent bonding between vinyl and methacryl groups on SiO 2 -V ( Figure 3 d) and SiO 2 -M surfaces and b-UPR chains [ 18 ]. The decrease in T g for b-UPR/SiO 2 and b-UPR/SiO 2 -AMBD composites occurs due to lowering the temperature of relaxation [ 50 ].…”

“…Germany [ 49 ]. Dynamic-mechanical analysis of cured composites was performed using the Modular Compact Rheometer MCR–302 (Anton Paar GmbH, Ashland, VA, USA) in the torsion deformation mode [ 50 ]. On a High-Speed Puncture Impact testing machine, the impact resistance of table top and floor material based on c-UPR composites was investigated (HIDROSHOT HITS-P10, Shimadzu, Kyoto, Japan) [ 51 ].…”

Determination of Mechanical Properties of Epoxy Composite Materials Reinforced with Silicate Nanofillers Using Digital Image Correlation (DIC)

“…Viscoelastic properties of cured thermosetting polymers are usually investigated using DMA as a standard technique suitable for application in a wide temperature range [ 47 ]. Interfacial interactions between fillers and polymer matrices are essential in determining bulk properties and service performances of corresponding composites.…”

“…The G’’-temperature curve shows a slight rise of G’’ values below the transition region after what values significantly decrease with temperature increase, which is attributed to internal friction which promotes energy dissipation caused by the presence of reinforcements [ 47 ]. The tanδ height values are similar for plane epoxy and corresponding composites and amounts from 0.62 to 0.68.…”