Recyclable and Reprocessable Crosslinked Rubber Enabled by Constructing Ionic Crosslinked Networks

Shao, Liang; Xu, Ran; Wang, Jingping; Ma, Zhonglei; Ji, Zhanyou; Zhang, Wenjing; Wei, Handan; Zhu, Chao; Wang, Caiyun; Ma, Jianzhong

doi:10.1021/acssuschemeng.0c03863

Cited by 12 publications

(7 citation statements)

References 31 publications

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“…[53] XRD pattern of PBIF (Figure S2a, Supporting Information) displays two moderate diffraction signals at 12.5°and 20.6°, respectively, implying the presence of a certain extent of ordered accumulation state in PBIF. [54] According to the TGA curve (Figure S2b, Supporting Information), PBIF starts to decompose at ≈315 °C, and the corresponding temperature with weight loss of 5% is ≈340 °C. The char yield is ≈43.6% when heated to 800 °C, indicating that PBIF has good thermal stability.…”

Section: Synthesis and Characterizationmentioning

confidence: 99%

Synthesis and Nitrite/Sulfite Electrochemical Response Investigation of Fluorene‐Based, Cross‐Linked Polyisocyanide

Shi

Zhang

et al. 2021

Macro Materials & Eng

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As compared to the widely studied linear‐type polyisocyanides (PICs), the development of cross‐linked PICs has not attracted much attention, and their applications in electrochemical fields are scarcely reported by far. Herein, a type of novel fluorene‐based isocyanide monomer (BIF), which bears two isocyano (─NC) groups, is successfully synthesized via Hofmann method with 9, 9‐bis (4‐aminophenyl) fluorene as the precursor. Corresponding fluorene‐based, cross‐linked PIC derivative (PBIF) is successfully prepared by Ni2+‐catalyzed polymerization of BIF. Chemical structure, elemental composition, accumulation state, thermal stability, microstructure, porous characteristics, and specific surface area of PBIF are characterized. NO2− and SO32− electrochemical responses of the modified glassy carbon electrode (PBIF/CS/GCE), which is fabricated with PBIF as the active material and chitosan (CS) as adhesive agent, is systematically analyzed here. Experimental results show that PBIF/CS/GCE exhibits strengthened NO2−/SO32− electrochemical response, suggesting that PBIF has a potential application prospect as novel non‐conjugated polymer‐based NO2−/SO32− electrochemical probing material.

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Section: Synthesis and Characterizationmentioning

confidence: 99%

Synthesis and Nitrite/Sulfite Electrochemical Response Investigation of Fluorene‐Based, Cross‐Linked Polyisocyanide

Shi

Zhang

et al. 2021

Macro Materials & Eng

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“…Accordingly, the 19th century can be named the “rubber technology era”, considering that at that time rubber technology solved a wide range of problems. However, the same as other technologies, advantages and disadvantages of rubber recycling techniques were born in the same manner. − Looking at the status of the matter in the 20th century confirms that the processing and management of rubber wastes have significantly advanced from the perspectives of the unit operation and machinery.…”

Section: Introductionmentioning

confidence: 98%

Green Approaches in Rubber Recycling Technologies: Present Status and Future Perspective

Wiśniewska

Haponiuk

Colom

et al. 2023

ACS Sustainable Chem. Eng.

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As a consequence of massive production and consumption of rubbers, rubber blends, and rubber composites for myriad applications, elastomeric products have enormously accumulated and become an environmental threat. The disposal and burning of rubber wastes have been banned because of environmental and economic reasons. By contrast, a great deal of attention has been directed toward strategies enabling recycling and reuse of rubbers. Basically, conventional recycling methods suffer from several drawbacks such as the formation of dust, fumes, and toxic gases in the air, as well as contamination of underground water resources. Thus, green and sustainable formulations and processing methods nowadays are of priority and importance. Taking advantage of sustainable development horizons, scientific and technological aspects of waste rubber management such as processing techniques, properties of the resulting products, industrial applications, and compatibilization with other materials such as thermoplastics, thermosets, and rubbers are herein reviewed and discussed. A particular emphasis is placed on reactive extrusion as a highly flexible in situ compounding method enabling innovations and taking care of sustainability concerns. Finally, the current status of green rubber recycling and future opening doors ahead of this technology are highlighted.

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“…The double bond in ZDMA was oxidized and reacted with the hydroxyl group in bis‐[γ‐(triethoxysilyl)propyl]tetrasulfide to prepare sulfur‐ZDMA. Sulfur was used to crosslink the rubber chain; however, the ionic bond supported by Zn 2+ and carboxyl groups provided the recyclability and reprocessability [ 25 ] properties. Liu [ 26 ] introduced maleic anhydride (MAH) and ZDMA into NR to construct a dual ionic network.…”

Section: Introductionmentioning

confidence: 99%

Fabricated coordinate and ionic bonds in chemically cross‐linked ethylene acrylic elastomer for high‐performing elastomers

Gao

Hui

et al. 2022

Polymer Engineering & Sci

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Covalent bond cross-link networks endow rubber with unique resiliency enabling it to be widely used as a series of irreplaceable materials in modern life. However, the balance between rigidity and toughness, which is highly desired with the growing demand for high-performance rubber, remains a significant challenge for covalent bond networks. In this study, magnesium oxide (MgO) was filled in an ethylene acrylic elastomer (AEM) to construct both ionic cluster and coordinate bonds within the framework of a covalent crosslink network, which significantly improved the properties of AEM. The MgOfilled AEM was measured through Fourier transform infrared spectroscopy and thermogravimetric analysis, using a universal testing machine, dynamic mechanical thermal analyzer, and rubber process analyzer. As the multi-bond network was successfully constructed, the tensile strength was enhanced by almost 10 times, and unexpected dynamic properties were exhibited with a higher elastic modulus (rigidity) attributed to ionic clusters and a higher loss factor (toughness) attributed to the coordinate bonds. With the efficient enhancement of the mechanical properties, the improved toughness can dissipate energy to preserve the integrity of rubber under the application of an external mechanical force.coordinate bond, ethylene acrylic elastomer, high-performance, ionic bond, magnesium oxide | INTRODUCTIONRubber is a very important material that is applied in various industries, agriculture, and daily life as seals, tires, and shock absorbers. [1,2] However, owing to the low modulus and strength of raw rubber, it not only requires chemical cross-linking with a curing agent but also needs reinforcement by a filler before application. Carbon

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Recyclable and Reprocessable Crosslinked Rubber Enabled by Constructing Ionic Crosslinked Networks

Cited by 12 publications

References 31 publications

Synthesis and Nitrite/Sulfite Electrochemical Response Investigation of Fluorene‐Based, Cross‐Linked Polyisocyanide

Synthesis and Nitrite/Sulfite Electrochemical Response Investigation of Fluorene‐Based, Cross‐Linked Polyisocyanide

Green Approaches in Rubber Recycling Technologies: Present Status and Future Perspective

Fabricated coordinate and ionic bonds in chemically cross‐linked ethylene acrylic elastomer for high‐performing elastomers

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