Recently, flexible wearable electronic devices have attracted immense interest as an alternative for conventional rigid metallic conductors in personal healthcare monitoring, human motion detection, and sensory skins, owing to their intrinsic characteristics. However, the practical applications of most sensors are generally limited by poor stretchability sensitivity, unsatisfactory strength, lower conductivity, single function. Here a hydrogen bond cross-linked network based on carboxylic...

Introducing ionic associations is one of the most effective approaches to realize a self-healing behavior for rubbers. However, commercial rubbers are nonpolar without now available functional groups be converted into groups. In this paper, our strategy was based on controlled peroxide-induced vulcanization generate massive cross-links via polymerization zinc dimethacrylate (ZDMA) in natural rubber (NR) and exploited it as potential self-healable material. We process retard formation...

We prepared a biobased material, dynamically vulcanized polylactide (PLA)/natural rubber (NR) blend in which the cross-linked NR phase owned continuous network-like dispersion. This finding breaks traditional concept of sea-island morphology formed after dynamic vulcanization blends. The scan electron microscopy and dissolution/swell experiments provided direct proof phase. new PLA/NR material with novel structure is reported for first time field shows promise development various functional...

Abstract Real‐time detection of different physiological characteristics is crucial for human physical and mental health. A system with multimodal sensing capability, high sensitivity, excellent mechanical properties, environmental stability highly desirable, but it still a great challenge. Inspired by the structural gradient biological tissues, multifunctional sensor based on carboxylic styrene butadiene rubber (XSBR) sodium polyacrylate (PAANa) non‐covalently modified MXenes prepared in...

Cellulose nanocrystals represent a promising and environmentally friendly reinforcing nanofiller for polymers, especially rubbers elastomers.

Shape memory polymers (SMPs) based on fully biobased poly(lactide) (PLA)/natural rubber (NR) thermoplastic vulcanizates (TPVs) were fabricated via peroxide-induced dynamic vulcanization. Simultaneously, in situ reactive compatibilization was achieved by PLA molecule grafting onto NR chains. Differing from the general concept of spherical particles being formed after vulcanization, cross-linked found to be a "netlike" continuous phase matrix. This novel structure explained surprising shape...

In the presence of dicumyl peroxide (DCP), biobased thermoplastic vulcanizates (TPVs) composed poly(lactic acid) (PLA) and epoxidized natural rubber (ENR) were prepared through dynamic vulcanization. Interfacial in situ compatibilization between PLA ENR phases was confirmed by Fourier transform infrared spectroscopy (FT-IR). A novel "sea-sea" co-continuous phase PLA/ENR TPVs observed scanning electron microscopy (SEM) differed from typical "sea-island" morphology that cross-linked particles...

Stiffness and toughness are two mutually exclusive attributes of polymer materials that contribute to significant improvements in impact strength, usually accompanied by a reduction tensile strength. In this study, ternary thermoplastic vulcanizates (TPVs) consisting poly(lactic acid) (PLA), poly(methyl methacrylate)-grafted natural rubber (NR-PMMA), (NR) with balanced stiffness were successfully prepared via peroxide-induced dynamic vulcanization. With 10 wt% NR NR-PMMA, the PLA/NR-PMMA/NR...

In this paper, crosslinked cellulose/sodium alginate (SA) was modified with polyethyleneimine (PEI) as an adsorbent (PEI-RCSA) for comparative and competitive adsorption of Cu(ii), Zn(ii), Pb(ii) in single binary aqueous solutions. FTIR, SEM, TGA specific surface area analysis were used to characterize the structural characteristics PEI-RCSA. The effects initial pH solutions, contact time concentration heavy metal ions on capacity PEI-RCSA investigated. experimental results revealed that...

In most cases, the strength of self-healing supramolecular rubber based on noncovalent bonds is in order KPa, which a challenge for their further applications. Incorporation conventional fillers can effectively enhance rubbers, but usually accompanied by sacrifice capability due to that filler system independent reversible network. present work, situ reaction methacrylic acid (MAA) and excess zinc oxide (ZnO) was realized natural (NR). Ionic cross-links NR matrix were obtained limiting...

Self-healing based on noncovalent bonds and mechanical strengthening fillers are contradictions for commercial rubbers. To solve this problem, in paper, we constructed a hydrogen bonding supramolecular hybrid network by incorporating carboxymethyl chitosan (CMCS) into epoxidized natural rubber (ENR) through solution-mixing method. The regenerated CMCS with multiple hydrophilic groups formed interactions ENR chains, which served as multifunctional linkages to construct the network. In way,...

Constructing a reversible supramolecular network cross-linked by noncovalent bonds is an effective approach to realize self-healing as well reprocessing and recycling for rubbers. Unfortunately, in most case the resultant rubbers cannot hold enough forces meet routine applications. In this paper, our strategy was based on simple reaction between carboxy groups carboxylated styrene butadiene rubber (XSBR) zinc oxide (ZnO), where formed Zn2+ salt bondings connect separate XSBR molecules. The...

The fabrication of SBS-g-COOH/ZnO composites cross-linked by Zn2+ salt-bondings was reported. First, SBS-g-COOH with different grafting ratio synthesized through the thermally induced thiol–ene click reaction, which corroborated FT-IR and 1H NMR. Next, zinc oxide (ZnO) added to coordinate carboxyl groups obtain salt-bondings. TEM images, demonstrating ion-rich domains size 30–50 nm, substantiated formation also exhibited that density ion increased increasing content ZnO. effectively enhanced...