Shape Memory Composites for Self-deployable Structures in Aerospace Applications

Santo, Loredana; Quadrini, Fabrizio; Accettura, Antonio G.; Villadei, W.

doi:10.1016/j.proeng.2014.11.124

Cited by 95 publications

(57 citation statements)

References 9 publications

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“…Shape memory composites (SMCs) can be formed by either using SMP matrices or by integrating parts made of SMPs. Flexible composite skins over a shape memory foam core can be used to obtain a composite sandwich that can be shaped to reduce its volume or to change its stiffness …”

Section: Polyimidesmentioning

confidence: 99%

Advances in Polyimide‐Based Materials for Space Applications

Gouzman¹,

Grossman²,

Verker³

et al. 2019

Advanced Materials

456

252

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The space environment raises many challenges for new materials development and ground characterization. These environmental hazards in space include solar radiation, energetic particles, vacuum, micrometeoroids and debris, and space plasma. In low Earth orbits, there is also a significant concentration of highly reactive atomic oxygen (AO). This Progress Report focuses on the development of space‐durable polyimide (PI)‐based materials and nanocomposites and their testing under simulated space environment. Commercial PIs suffer from AO‐induced erosion and surface electric charging. Modified PIs and PI‐based nanocomposites are developed and tested to resist degradation in space. The durability of PIs in AO is successfully increased by addition of polyhedral oligomeric silsesquioxane. Conductive materials are prepared based on composites of PI and either carbon nanotube (CNT) sheets or 3D‐graphene structures. 3D PI structures, which can expand PI space applications, made by either additive manufacturing (AM) or thermoforming, are presented. The selection of AM‐processable engineering polymers in general, and PIs in particular, is relatively limited. Here, innovative preliminary results of a PI‐based material processed by the PolyJet technology are presented.

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Section: Polyimidesmentioning

confidence: 99%

Advances in Polyimide‐Based Materials for Space Applications

Gouzman¹,

Grossman²,

Verker³

et al. 2019

Advanced Materials

456

252

View full text Add to dashboard Cite

show abstract

“…Such one‐directional shape‐changing behavior is known as one‐way shape‐memory effect (1W‐SME) . There is nowadays a growing interest to more advanced domains like smart textiles, aerospatiale devices, and so on via the utilization of complex SMPs . The recent research shows new interesting breakthroughs over complex SMPs: multi‐SMPs which are able to display more than one shape transition and two‐way (2W)‐SMPs exhibiting reversible actuation between temporary and permanent shapes.…”

Section: Introductionmentioning

confidence: 99%

Poly(ε‐caprolactone) and Poly(ω‐pentadecalactone)‐Based Networks with Two‐Way Shape‐Memory Effect through [2+2] Cycloaddition Reactions

Pilate

Stoclet

Mincheva

et al. 2017

Macro Chemistry & Physics

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In this work, the synthesis and characterization of triple-shape and twoway shape-memory effect of novel poly(ester-urethane)s (PURs) made of a poly(ε-caprolactone) (PCL) and poly(ω-pentadecalactone) (PPDL) segments and N,N-bis(2-hydroxyethyl)cinnamide (BHECA) monomer by reactive extrusion (REx) is reported. PCL and PPDL are chosen as semicrystalline segments because of their inherent ability to undergo tensile elongation upon cooling, as prerequisite for the two-way shape-memory effect. BHECA is used as the "cross-linker" due to its ability to participate in reversible [2+2] cycloaddition reaction and to mainly maintain the crystalline features of semicrystalline precursors within these PURs. This novel simple strategy is considered extremely versatile and adaptive because of the possibility to vary crystallizable segments and coupling agents, thus paving the way to the design of a multitude of triple (or more) shape-memory polymers with two-way behavior. Feasibility with PURs containing PCL, PPDL, and BHECA is demonstrated by adjusting the shape-memory behavior (one and two-way effects), and studying the structure-property relationships of the resulting PURs by DSC, DMTA, and 2D wide angle X-ray scattering analyses while varying the weight composition of the two semicrystalline segments.

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“…At testing temperature of −60 °C, their bending strength, bending modulus, and shearing strength were 564 MPa, 42.8 GPa, and 38.7 MPa, respectively. Obviously, CTBN/EP/CE carbon fiber composites exhibited excellent mechanical properties at room temperature and low temperature condition, which met the strict requirements of strength in their application in supporting structures of aerospace …”

Section: Resultsmentioning

confidence: 97%

Shape memory CTBN/epoxy resin/cyanate ester ternary resin and their carbon fiber reinforced composites

et al. 2019

J of Applied Polymer Sci

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Carboxylated‐terminated liquid acrylonitrile rubber (CTBN) and epoxy resin (JEF‐0211) were coreacted with cyanate ester (CE) to form CTBN/EP/CE ternary resin systems. Further, the ternary resin system was applied as prepreg for carbon fiber composites with vacuum bag degassing molding process. CTBN/EP/CE ternary shape memory polymer (SMP) exhibited relatively high tensile strength, Young's modulus, impact strength, and excellent shape memory properties. Compared with CTBN/EP/CE ternary SMP, CTBN/EP/CE carbon fiber composites showed much higher mechanical properties, such as their tensile strength and Young's modulus were high to 570 MPa and 36.7 GPa, respectively. Furthermore, CTBN/EP/CE carbon fiber composites exhibited good shape memory properties, their shape fixity ratio and shape recovery ratio were more than 95% after 30 times repeating shape memory tests. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48756.

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Shape Memory Composites for Self-deployable Structures in Aerospace Applications

Cited by 95 publications

References 9 publications

Advances in Polyimide‐Based Materials for Space Applications

Advances in Polyimide‐Based Materials for Space Applications

Poly(ε‐caprolactone) and Poly(ω‐pentadecalactone)‐Based Networks with Two‐Way Shape‐Memory Effect through [2+2] Cycloaddition Reactions

Shape memory CTBN/epoxy resin/cyanate ester ternary resin and their carbon fiber reinforced composites

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