Mechanically robust self-healing and recyclable flame-retarded polyurethane elastomer based on thermoreversible crosslinking network and multiple hydrogen bonds

Yang, Shenghai; Wang, Shuang; Du, Xiaosheng; Du, Zongliang; Cheng, Xu; Wang, Haibo

doi:10.1016/j.cej.2019.123544

Cited by 121 publications

(52 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yang et al 201 also explored the combination of DA chemistry with hydrogen bonds. They prepared a reversible dual network by combining tri(2-furyl) phosphoramide (TFP) with a maleimide end-capped PU elastomer (MPU).…”

Section: Combined Non-covalent/covalent Systemsmentioning

confidence: 99%

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

et al. 2020

View full text Add to dashboard Cite

show abstract

Section: Combined Non-covalent/covalent Systemsmentioning

confidence: 99%

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The reviewed advantages these reversible covalent and supramolecular elastomers offer for the formative and additive manufacturing of complex, self-healing structural components, will continue to spur their use in different types of structural applications, especially in soft robotics and flexible electronics. [305][306][307][308][309][310][311][312][313][314][315][316][317] Figure 12. Typical viscosity ranges for different additive and formative processing methods.…”

Section: Conclusion and Perspectivementioning

confidence: 99%

Processing of Self‐Healing Polymers for Soft Robotics

et al. 2021

View full text Add to dashboard Cite

Soft robots are, due to their softness, inherently safe and adapt well to unstructured environments. However, they are prone to various damage types. Self‐healing polymers address this vulnerability. Self‐healing soft robots can recover completely from macroscopic damage, extending their lifetime. For developing healable soft robots, various formative and additive manufacturing methods have been exploited to shape self‐healing polymers into complex structures. Additionally, several novel manufacturing techniques, noted as (re)assembly binding techniques that are specific to self‐healing polymers, have been created. Herein, the wide variety of processing techniques of self‐healing polymers for robotics available in the literature is reviewed, and limitations and opportunities discussed thoroughly. Based on defined requirements for soft robots, these techniques are critically compared and validated. A strong focus is drawn to the reversible covalent and (physico)chemical cross‐links present in the self‐healing polymers that do not only endow healability to the resulting soft robotic components, but are also beneficial in many manufacturing techniques. They solve current obstacles in soft robots, including the formation of robust multi‐material parts, recyclability, and stress relaxation. This review bridges two promising research fields, and guides the reader toward selecting a suitable processing method based on a self‐healing polymer and the intended soft robotics application.

show abstract

“…The performance comparison between this material and the existing literatures PU elastomer has been put into the (Supplementary Figure 9). (Yuan et al, 2014;Chen et al, 2016;Feula et al, 2016;Yang et al, 2017Yang et al, , 2020Jin et al, 2020).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

A Degradable and Self-Healable Vitrimer Based on Non-isocyanate Polyurethane

Jin

Wang

et al. 2020

Front. Chem.

View full text Add to dashboard Cite

Developing degradable and self-healable elastomers composed of reusable resources is of great value but is rarely reported because of the undegradable molecular chains. Herein, we report a class of degradable and self-healable vitrimers based on non-isocyanate polyurethane elastomer. Such vitrimers are fabricated by copolymerizing bis(6-membered cyclic carbonate) and amino-terminated liquid nitrile rubber. The networks topologies can rearrange by transcarbonation exchange reactions between hydroxyl and carbonate groups at elevated temperatures; as such, vitrimers after reprocessing can recover 82.9-95.6% of initial tensile strength and 59-131% of initial storage modulus. Interestingly, the networks can be hydrolyzed and decarbonated in the strong acid solution to recover 75% of the pure di(trimethylolpropane) monomer. Additionally, the elastomer exhibits excellent self-healing efficiency (∼88%) and fracture strain (∼1,200%) by tuning the monomer feeding ratio. Therefore, this work provides a novel strategy to fabricate the sustainable elastomers with minimum environmental impact.

show abstract

Mechanically robust self-healing and recyclable flame-retarded polyurethane elastomer based on thermoreversible crosslinking network and multiple hydrogen bonds

Cited by 121 publications

References 46 publications

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

Evolution of self-healing elastomers, from extrinsic to combined intrinsic mechanisms: a review

Processing of Self‐Healing Polymers for Soft Robotics

A Degradable and Self-Healable Vitrimer Based on Non-isocyanate Polyurethane

Contact Info

Product

Resources

About