16 research outputs found
Integrated Ternary Bioinspired Nanocomposites <i>via</i> Synergistic Toughening of Reduced Graphene Oxide and Double-Walled Carbon Nanotubes
With its synergistic toughening effect and hierarchical micro/nanoscale structure, natural nacre sets a “gold standard” for nacre-inspired materials with integrated high strength and toughness. We demonstrated strong and tough ternary bioinspired nanocomposites through synergistic toughening of reduced graphene oxide and double-walled carbon nanotube (DWNT) and covalent bonding. The tensile strength and toughness of this kind of ternary bioinspired nanocomposites reaches 374.1 ± 22.8 MPa and 9.2 ± 0.8 MJ/m<sup>3</sup>, which is 2.6 and 3.3 times that of pure reduced graphene oxide film, respectively. Furthermore, this ternary bioinspired nanocomposite has a high conductivity of 394.0 ± 6.8 S/cm and also shows excellent fatigue-resistant properties, which may enable this material to be used in aerospace, flexible energy devices, and artificial muscle. The synergistic building blocks with covalent bonding for constructing ternary bioinspired nanocomposites can serve as the basis of a strategy for the construction of integrated, high-performance, reduced graphene oxide (rGO)-based nanocomposites in the future
Bioinspired Ternary Artificial Nacre Nanocomposites Based on Reduced Graphene Oxide and Nanofibrillar Cellulose
Inspired by the nacre,
we demonstrated the integrated ternary artificial nacre nanocomposites
through synergistic toughening of graphene oxide (GO) and nanofibrillar
cellulose (NFC). In addition, the covalent bonding was introduced
between adjacent GO nanosheets. The synergistic toughening effects
from building blocks of one-dimensional NFC and two-dimensional GO,
interface interactions of hydrogen and covalent bonding together result
in the integrated mechanical properties including high tensile strength,
toughness, and fatigue life as well as high electrical conductivity.
These extraordinary properties of the ternary synthetic nacre nanocomposites
allow the support for advances in diverse strategic fields including
stretchable electronics, transportation, and energy. Such bioinspired
strategy also provides a new insight in designing novel multifunctional
nanocomposites
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc
Programmable and Shape–Color Synchronous Dual-Response Wood with Thermal Stimulus
Stimuli-responsive
materials exhibit huge potential in sensors,
actuators, and electronics; however, their further development for
reinforcement, visualization, and biomass-incorporation remains challenging.
Herein, based on the impregnation of thermochromic microcapsule (TCM)-doped
dynamic covalent vitrimers, a programmable shape-color dual-responsive
wood (SRW-TC) was demonstrated with robust anisotropic structures
and exchangeable covalent adaptable networks. Under mild conditions,
the resultant SRW-TC displays feasible shape memorability and programmability,
resulting from the rigidity–flexibility shift induced by the
glass-transition temperature (34.99 °C) and transesterification
reaction triggered by the topology freezing transition temperature
(149.62 °C). Furthermore, the obtained SRW-TC possesses satisfactory
mechanical performance (tensile strength of 45.70 MPa), thermal insulation
(thermal conductivity of 0.27 W/m K), anisotropic light management,
and benign optical properties (transmittance of 51.73% and haze of
99.67% at 800 nm). Importantly, the incorporation of compatible TCM
enables SRW-TC to visualize shape memory feasibility and rigidity/flexibility
switching and respond to the external thermal stimulus through the
thermal-induced shape–color synchronous dual-responsiveness,
which successfully demonstrates the applications of sensing temperature,
grasping objects, encrypting/decoding icon messages, and so on. The
proposed facile and highly effective strategy could serve as a guideline
for developing high-performance multifunctional wood composite with
promising intelligent applications in performance visualization, environmental
sensing, materials interactivity, information dual-encryption, local
precision shape and color regulation, etc