Thermodynamic properties of TPI shape memory polymer composites reinforced by GO/SiO2 modified carbon fiber

Xu, Lidan; Zhao, Jitao; Shi, Mingfang; Liu, Jingbiao; Wang, Zhenqing

doi:10.1016/j.compscitech.2022.109551

Cited by 18 publications

(7 citation statements)

References 30 publications

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“…1.5 wt%, which is similar with the reported studies. 20,[22][23][24][25][26] (2) In the range of 5 to 40 wt%, the tensile strength reached its second peak of 95.87 MPa at a GO content of 30 wt%. This phenomenon has also been observed in the findings of other researchers' to '2) In the range of 5wt% to 40wt%, the tensile strength reached its second peak of 95.87MPa at a GO content of 30wt%.…”

Section: Resultsmentioning

confidence: 99%

“…20 When preparing hydroxyapatite biological composites reinforced by short carbon fibers, Wang et al found that significant aggregations occurred when the mass fraction of short carbon fibers reached 11%. 21 Similarly, current research on GO reinforced polymer composites either focuses on low content [22][23][24][25][26] or on high content of GO, [27][28][29] and there is no systematic exploration of the mechanical properties of GO with different contents. Due to the 2D layered structure, good dispersibility and interfacial bonding properties of GO sheet, its distribution and combination in polymer materials differ significantly from zero-dimensional or one-dimensional reinforcements, and the resulting stress transfer mechanisms, reinforcement effects and functional properties may be substantially different from those of other zero-dimensional or onedimensional reinforcements.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical properties and functionalization of Graphene oxide‐Thermoplastic polyurethane polymer composites regulated by internal microstructure: From disorder arrangement to nacre‐like laminated structure

Wen,

Zheng,

Wang

et al. 2024

Polymer Composites

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Graphene oxide (GO) is a two‐dimensional material known for its exceptional mechanical, chemical and electrical characteristics. Here, the mechanical properties and functionalization of GO reinforced thermoplastic polyurethane (TPU) polymer composites with GO content ranging from low to high were investigated. It shows that the GO can mix with TPU in any proportion. The microstructure changed from disorder arrangement to a regular nacre‐like staggered structure, accompanied by different kinds of internal defects as the content increases, resulting in multiple peaks in the tensile properties of composite materials. The tensile strength of composites containing 80 wt% GO is 194% higher than that of pure TPU. This result is closely related to the changes in internal microstructure arrangement, the corresponding stress distribution and the transformation of damage mechanisms. Simultaneously, it shows that the composites exhibited shape memory function at low GO content of 1.5 wt% with about 100% shape recovery at 70°C, and electrical conductivity and deicing function at high GO content of 80 wt% after chemical reduction, which can reach a temperature of 107°C at 10 V AC. These findings will help to comprehensively understand the structural and functional integration design of GO reinforced polymer composites.Highlights Mechanical properties and functionalization of GO/TPU composites were studied. Increased GO causes the arrangement to change from disorder to a nacre‐like structure. Stress distribution and damage mechanisms transformed as the GO content changed. The GO/TPU composites exhibited shape memory and deicing function.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical properties and functionalization of Graphene oxide‐Thermoplastic polyurethane polymer composites regulated by internal microstructure: From disorder arrangement to nacre‐like laminated structure

Wen,

Zheng,

Wang

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…Shape memory polymer composites (SMPCs) have extensive applications in intelligent control, aerospace, biomedicine, etc 1–5 . Currently, researchers are actively involved in developing innovative SMPCs by optimizing their chemical formulation, 6–9 microstructure, 10,11 and fiber reinforcement 12–14 . These efforts aim to enhance the temperature range, response speed, and cycle life of SMPCs 15–17 .…”

Section: Introductionmentioning

confidence: 99%

Shape memory polymer composite fabrics with high recovery force and excellent electrothermal drive deformability

Liu,

Yang,

et al. 2024

Polymer Composites

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Fabric‐reinforced shape memory polymer composites are lightweight, strong, formable, controllable, and suitable for various engineering and innovative applications. This study aims to fabricate and characterize electrothermal dual drive shape memory polymer composite fabrics (SMPCFs) of different densities with three‐dimensional (3D) angle‐interlock structures. The tensile properties, electrothermal properties, recovery forces (both tensile and bending), and shape recovery properties of SMPCFs were evaluated. The SMPCFs exhibited a tensile elongation of over 20% at the transition temperature. SMPCFs can reach transition temperatures when loaded with 2 V. The recovery forces are up to 225 N in tensile recovery force and 3.6 N in bending recovery force. In the shape recovery test, the recovery ratio exceeded 97%. Finally, the demonstration of recovery properties can stimulate the possibilities of SMPCFs in innovation and applications.Highlights Core‐shell structured composite filaments were prepared. 3D angle‐interlock composite fabrics: high strength, electrothermal drive. Tensile recovery force of composite fabrics can be up to 225 N. Elongation at transition temperatures was up to 20%.

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“…Shape memory polymers (SMPs) have broad potential applications in aerospace [1], medicine and health [2][3][4], industrial control [5][6][7], surface engineering [8,9], self-healing [10], 3D printing [11][12][13][14][15][16], and other fields [17,18] because they can keep a temporary shape at room temperature and restore to their original shape when stimulated by the outside world [19][20][21][22][23][24]. SMPs are expected to replace traditional shape memory alloys and ceramics (SMAs and SMCs, respectively) in some fields and have become the most intensively studied shape memory materials [25][26][27][28][29][30][31][32][33][34]. Compared with other popular SMPs, such as polyolefin [35] and epoxy resin [36][37][38][39], shape memory polyurethane (SMPU) has wider applications in fields such as biomedicine and smart textiles because of its high degree of deformability, easy processing, adjustable thermal transition temperature, and biocompatibility [40].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Body-Temperature-Responsive Thermoset Shape Memory Polyurethane for Medical Applications

et al. 2023

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Shape memory polymers (SMPs) are currently one of the most attractive smart materials expected to replace traditional shape memory alloys and ceramics (SMAs and SMCs, respectively) in some fields because of their unique properties of high deformability, low density, easy processing, and low cost. As one of the most popular SMPs, shape memory polyurethane (SMPU) has received extensive attention in the fields of biomedicine and smart textiles due to its biocompatibility and adjustable thermal transition temperature. However, its laborious synthesis, limitation to thermal response, poor conductivity, and low modulus limit its wider application. In this work, biocompatible poly(ε-caprolactone) diol (PCL-2OH) is used as the soft segment, isophorone diisocyanate (IPDI) is used as the hard segment, and glycerol (GL) is used as the crosslinking agent to prepare thermoset SMPU with a thermal transition temperature close to body temperature for convenient medical applications. The effects of different soft-chain molecular weights and crosslinking densities on the SMPU’s properties are studied. It is determined that the SMPU has the best comprehensive performance when the molar ratio of IPDI:PCL-2OH:GL is 2:1.5:0.33, which can trigger shape memory recovery at body temperature and maintain 450% recoverable strain. Such materials are excellent candidates for medical devices and can make great contributions to human health.

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Thermodynamic properties of TPI shape memory polymer composites reinforced by GO/SiO2 modified carbon fiber

Cited by 18 publications

References 30 publications

Mechanical properties and functionalization of Graphene oxide‐Thermoplastic polyurethane polymer composites regulated by internal microstructure: From disorder arrangement to nacre‐like laminated structure

Mechanical properties and functionalization of Graphene oxide‐Thermoplastic polyurethane polymer composites regulated by internal microstructure: From disorder arrangement to nacre‐like laminated structure

Shape memory polymer composite fabrics with high recovery force and excellent electrothermal drive deformability

Preparation and Characterization of Body-Temperature-Responsive Thermoset Shape Memory Polyurethane for Medical Applications

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