Thermomechanical and fire performance of DGEBA based shape memory polymer composites for constructions

Emmanuel, K.D.C.; Herath, Madhubhashitha; Jeewantha, L. H. Janitha; Epaarachchi, Jayantha; Aravinthan, Thiru

doi:10.1016/j.conbuildmat.2021.124442

Cited by 17 publications

(7 citation statements)

References 32 publications

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“…Compared to reported studies, the CFRCs material developed in this work has a similar E′ value to a resin based composite with carbon fiber plain fabric, E′ = 35−44 GPa, 18 and superior to those of DGEBA based composites with basalt, glass, and carbon fiber fabrics (E = 6−15 GPa). 24 A significant characteristic, crucial for industrial applications, is the glass transition value (T g ) of the materials; for high-tech areas, such as the space or aerospace, the required values are >150 °C. 1 The glass transition is a thermal event that it is not characterized by an exact value but by an interval that is influenced by a multitude of factors.…”

Section: Compression and Interlaminar Shear Strength Tests (Ilss)mentioning

confidence: 99%

Recyclable, Repairable, and Fire-Resistant High-Performance Carbon Fiber Biobased Epoxy

Dinu

Lafont

Damiano³

et al. 2023

ACS Appl. Polym. Mater.

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Due to the global environmental concerns caused by the ever-increasing environmental impact, landfill materials, and CO2 emission, there is a critical need in the elaboration of sustainable composite materials. Advanced material composites used in the production of high-performance products to solve some of the most difficult engineering challenges are having a key role in decarbonization by their light weight, higher performance, and increasing durability. In this work, sustainable carbon fiber reinforced composites (CFRCs) have been engineered with an environmentally friendly epoxy resin derived from natural and renewable compounds employing an industrial feasible manufacturing protocol. The thermosetting resin with a biobased organic carbon content (BOC) of ∼77% was synthesized by combining a renewable based monomer, the triglycidyl ether of phloroglucinol (TGPh), with hexahydro-4-methylphthalic anhydride (HMPA). The developed CFRCs show high performance with high glass transitions T g > 350 °C, a high storage modulus ∼42 GPa, a high interlaminar shear strength ∼63 MPa, and a compressive strength ∼400 MPa. In addition, the outgassing tests show that both the resin and the CFRCs are compliant for space application. Moreover, the biobased CFRCs exhibit chemical recyclability, reprocessability, and excellent intrinsic flame resistance.

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Section: Compression and Interlaminar Shear Strength Tests (Ilss)mentioning

confidence: 99%

Recyclable, Repairable, and Fire-Resistant High-Performance Carbon Fiber Biobased Epoxy

Dinu

Lafont

Damiano³

et al. 2023

ACS Appl. Polym. Mater.

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“…To date, bisphenol A based SMPCs are extensively studied for aerospace applications 34 structural engineering applications 9 and biomedical applications. 35 In this study, the SMP matrix material was synthesized by using bisphenol A epoxy resin and tetramine and jeffamine hardeners.…”

Section: Preparation Of the Dofs Embedded Smpcmentioning

confidence: 99%

“…Subsequently, the enclosed thermal chamber was heated up to a set temperature of 175 C (heat rate of 7.5 C/min) and kept isothermal for 5 min. In this article, the shape memory effect of the SMPC is presented by considering the five key steps described by Emmanuel et al 9 Accordingly, the full thermomechanical cycle was divided into five steps and detailed in Table 2.…”

Section: Flexural Shape Memory Testmentioning

confidence: 99%

“…These intelligent smart materials have been extensively studied for biomedical, textile, aerospace, civil infrastructure and structural engineering applications to date. [7][8][9][10][11] By applying an external load at a temperature higher than the glass transition temperature (T g ), a thermally induced SMP material is programmed to the desired shape. The material is then cooled until it turns into a frozen polymer at a low temperature, while the programmed shape remains fixed.…”

Section: Introductionmentioning

confidence: 99%

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Distributed sensing based real‐time process monitoring of shape memory polymer components

Herath

Emmanuel

Jeewantha

et al. 2022

J of Applied Polymer Sci

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Shape memory polymer (SMP) materials have the capacity to undergo large deformations imposed by mechanical loading, hold a temporary shape, and then recover their original shape upon exposure to a particular external stimulus. The fiber reinforced shape memory polymer composites (SMPCs) with enhanced structural performances give a boost to breakthrough technologies for large-scale engineering applications. This article presents a novel technique for distributed optical fiber sensor (DOFS) embedded SMPCs intended for realtime process monitoring of large-scale engineering applications such as deployable space structures. Herein a carbon fiber reinforced SMPC was tested under a three-point flexural shape memory process and the DOFS data were acquired through optical backscatter reflectometry. Experiments were conducted in a temperature controlled thermal chamber coupled with a 10 kN electromechanical testing system. DOFSs offered unique advantages for spatially distributed dynamic temperature and strain measurements during the shape memory process. Compared to the standard test method dynamic mechanical analysis, larger samples can be tested effectively by using a single DOFS with large strain levels and shape complexity. The proposed technique demonstrated the ability of embedded DOFSs for in-situ shape memory characterization such as shape fixity ratio, shape recovery ratio and recovery rate. This technique will eliminate the challenges hindering the process monitoring and performance evaluation of large SMPC components operating in their real working environments.

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“…Shape memory performance of SMPs is commonly studied in terms of Rf and Rr [32][33][34]. The Rf shows the extent to which a material can hold its deformed shape when the external force is removed, while Rr relates to the amount of shape recovered.…”

Section: Shape Memory and Mechanical Properties  Shape Fixity And Re...mentioning

confidence: 99%

Damage onset analysis of optimized shape memory polymer composites during programming into curved shapes

et al. 2022

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Thermomechanical and fire performance of DGEBA based shape memory polymer composites for constructions

Cited by 17 publications

References 32 publications

Recyclable, Repairable, and Fire-Resistant High-Performance Carbon Fiber Biobased Epoxy

Recyclable, Repairable, and Fire-Resistant High-Performance Carbon Fiber Biobased Epoxy

Distributed sensing based real‐time process monitoring of shape memory polymer components

Damage onset analysis of optimized shape memory polymer composites during programming into curved shapes

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