Design of self-healable supramolecular hybrid network based on carboxylated styrene butadiene rubber and nano-chitosan

Xu, Chuanhui; Nie, Jiada; Wu, Wenchao; Fu, Lihua; Lin, Baofeng

doi:10.1016/j.carbpol.2018.10.080

Cited by 84 publications

(54 citation statements)

References 51 publications

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“…To mimic this feature, intense efforts have been made towards implanting this excellent bioinspired thought into synthetic materials. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] A sacrificial bond has been seen to be an influential factor in determining the self-healing ability in biomaterials, such as spider silk, mussel, and bones. [19][20] Consequently, sacrificial bonds have been assimilated into synthetic and natural polymers by numerous researchers for imparting both mechanical strength and self-healing ability.…”

Section: Introductionmentioning

confidence: 99%

Design Principles of Interfacial Dynamic Bonds in Self‐Healing Materials: What are the Parameters?

Sattar

Patnaik

2020

Chemistry An Asian Journal

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Polymers and polymer nanocomposites (PNCs) are extensively used in daily life. However, the growing requirement of advanced PNCs laid persistent environmental issues due to deformation‐induced damage that once formed, does not vanish at future stages. Therefore, self‐healing materials with significantly enhanced long life and safety have been designed to epitomize the forefront of recent advances in materials chemistry and engineering. Self‐healing PNC (SH‐PNCs) materials are a class of smart composites in which nanoparticles induce interfacial reconstruction via multiple covalent and non‐covalent interactions culminating in improved mechanical strength and self‐healing capability. However, since the filler nanoparticles are independent of the reversible supramolecular network, the filler incorporation destroys the self‐healing ability but could enhance the mechanical strength. Hence, the molecular parameters controlling the alliance of robust mechanical strength with virtuous self‐healing ability is a crucial challenge. Herein, we review the latest developments that have been made in self‐healing materials and puts advancing insights into the fabrication of SH‐PNCs in which the combination of covalent bonds and non‐covalent interactions provides an optimal balance between their mechanical performance and self‐healing capability. We highlight the importance of specific entropic, enthalpic changes, polymer chain conformations and flexibility that enable the reconstruction of damaged surface and physical reshuffling of dynamic bonds at the interface of cut surfaces.

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Section: Introductionmentioning

confidence: 99%

Design Principles of Interfacial Dynamic Bonds in Self‐Healing Materials: What are the Parameters?

Sattar

Patnaik

2020

Chemistry An Asian Journal

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“…For rubbers with functional groups, such as carboxylated styrene‐butadiene rubber (XSBR), the ionic interactions can be introduced by adding metal oxides or amino compounds, to enable self‐healing and simultaneously improve the mechanical properties. For saturated rubbers, the ionic interactions can be introduced by blending with functional polymers or ionomers, such as acrylic acid‐based copolymers.…”

Section: Introductionmentioning

confidence: 99%

Shape memory and self‐healing behavior of styrene–butadiene–styrene/ethylene‐methacrylic acid copolymer (SBS/EMAA) elastomers containing ionic interactions

Zhou

et al. 2019

J of Applied Polymer Sci

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Ionic interactions were introduced to styrene-butadiene-styrene (SBS) through blending with ethylene-methacrylic acid copolymer (EMAA) and zinc oxide (ZnO), and a following in situ neutralization reaction between the carboxyl groups of EMAA and ZnO. The resultant SBS/EMAA (60/40 wt %) blends containing zinc carboxylate crosslinks exhibited high modulus and strong long-time relaxation characteristics. With 74% of the carboxyl groups neutralized (zinc cation fraction of 1.7 wt %), the tensile strength of the blends was increased from 14.6 to 16.6 MPa, and the stress at 100% extension was increased from 4.8 to 8.1 MPa. The melting temperature of EMAA was utilized to trigger the shape memory behavior of SBS/EMAA, and the reversible ionic bonds endowed SBS with better shape memory and self-healing performance. The shape-fixing ratio and recovery ratio of SBS were increased from 90.2 and 56.5% up to 93.3 and 84.2%, respectively. When the cut surfaces of SBS/EMAA/Zn samples were brought back into contact and annealed at 100 C for 1 h, the strength and the elongation at break were recovered by 36 and 21%, respectively. This introduction of ionic interactions through the EMAA-ZnO neutralization reactions imparts new functions to SBS thermoplastic elastomers.

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“…Though the crosslinked SANs showed a lower rate of absorption, the equilibrium time of 120 s was a higher absorption rate than those previously reported . In addition, the equilibrium area of SANs at 150 °C was larger because the osmotic pressure and capillary force of suitable crosslinking enabled them to absorb more water than SANs at 130 °C . Note that 7‐SAN at 150 °C increased almost 3.9 times from the initial area, showing the best ability for water absorption.…”

Section: Resultsmentioning

confidence: 62%

Fabrication of superabsorbent nanofibers based on sodium polyacrylate/poly(vinyl alcohol) and their water absorption characteristics

Choi

Kim

2019

Polymer International

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Superabsorbent polymers (SAPs) have been widely studied and used in various industries. In this study, SAPs based on sodium polyacrylate (NaPAA) and poly(vinyl alcohol) were successfully prepared in the form of nanofibers using the electrospinning technique. The heat‐treated superabsorbent nanofibers (SANs) with 7 wt% of NaPAA and containing both crystal structures and crosslinks presented the best absorption performance, with up to 3.9 times and 134% increase in the absorption area and swelling ratio, respectively. Furthermore, the crystal structure and crosslinking of the SANs enabled them to maintain their fiber network during water absorption and recovery. The absorption rate of SANs having both crystal structures and crosslinks was slightly lower than that of nanofibers with only crystal structures, but it was still higher than that of SAPs because of the highly porous nature of the nanowebs. The easy processing and structural stability of SANs are expected to be useful in a wide range of applications. © 2019 Society of Chemical Industry

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Design of self-healable supramolecular hybrid network based on carboxylated styrene butadiene rubber and nano-chitosan

Cited by 84 publications

References 51 publications

Design Principles of Interfacial Dynamic Bonds in Self‐Healing Materials: What are the Parameters?

Design Principles of Interfacial Dynamic Bonds in Self‐Healing Materials: What are the Parameters?

Shape memory and self‐healing behavior of styrene–butadiene–styrene/ethylene‐methacrylic acid copolymer (SBS/EMAA) elastomers containing ionic interactions

Fabrication of superabsorbent nanofibers based on sodium polyacrylate/poly(vinyl alcohol) and their water absorption characteristics

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