Xuelian Wu designed the cover image based on the fabrication of electrically conductive semi-IPN from shape memory polyvinyl chloride and polyaniline. The electrical conductivity of the as-fabricated semi-IPN at room temperature is around 4.5 × 10⁻² S/cm. The shape memory performance and mechanical properties of semi-IPN are slightly different from the original PVC. Further, the key mechanism for the evolution of the electrical conductivity in semi-IPN in one shape memory cycle is revealed. DOI: 10.1002/app.53283

Schematic diagram of the combustion of flame-retardant epoxy resin.

Intermolecular interactions between salicylic acid and trifluoroacetic acid with the polyethyleneimine grafted polystyrene resin.

By introducing aromatic disulfide and designing the synthesis route, we introduce disulfide bonds into the position of the cross-linking point of polyurea and adjust the content of disulfide bonds. Polyurea material with high mechanical strength, good self-healing and recycling properties is successfully prepared, which integrates the good mechanical properties of thermosetting polyurea with the good self-healing and recycling properties of thermoplastic polyurea.

The influence of increase in carbon black (CB) concentration and its effect on properties of 70/30 SBR/BR rubber blends were analyzed. With increase in CB concentration the amount of CB partitioned towards BR phase increases and it affects the mechanical properties of 70SBR/30BR blends.

We present three methods to immobilize heparin-mimicking, virus-binding polymers on filter materials. Linear polyglycerol sulfate is grafted to the surface either via mussel-inspired coating chemistry, or by using a benzophenone anchor. Herpes simplex virus type 1 and severe acute respiratory virus 2 are efficiently removed from solution upon incubation with the coated filter.

Flow chart of optical and electron microscopy testings on rHDPE pellets and bottles using mechanical recycling.

In this paper, the effect of 3D photo-curing forming parameters of acrylic resin on its tribological and mechanical properties is studied. Based on Gray Correlation Theory, the “Wear Resistance Efficiency” (WRE) parameter is defined to comprehensively evaluate the wear resistance and printing efficiency of the samples, and the optimal process parameters are obtained.

Development of starch nanoparticle and its thermal degradation.

The micro-nanopowders of Gly-Zn and Gly-Bi were prepared by the solid-phase reaction through glycerol and ZnCl₂, Bi(NO₃)₃•5H₂O respectively under the presence of SDS. The deprotonation reaction of glycerol and ZnCl₂, Bi(NO₃)₃•5H₂O mainly occurs in the hydrogens of secondary hydroxyl and primary hydroxyl for glycerol molecules, but the hydrogen of secondary hydroxyl is more active, and Zn(II) reacts more easily than Bi(III). Moreover, the Gly-Bi is a excellent heat stabilizer rather than Gly-Zn for PVC.

An accelerated curing epoxy/aromatic amine adhesive system with oxo-centered trinuclear (chromium III) complex is designed, and then toughened using a thermoplastic block copolymer. The epoxy film adhesive can be cured at lower temperatures and exhibits excellent heat resistance and bonding properties. Thus, the film adhesive exhibits outstanding bonding properties when used in the bonding of lightweight honeycomb sandwich structures.

The coating was successfully prepared by layer-by-layer construction. The coating overcomes the defects of the water-based coating and forms an effective barrier protection layer. Compared with the traditional water-based anticorrosive coating, the coating has high hydrophobic performance and better anticorrosive performance.

(a) Ti₃C₂TX filled EMA (b) Dielectric permittivity

The above study emphasizes the role of collector properties in obtaining a helical morphology in magnetite nanoparticles incorporated polystyrene fibers (MPFs). The higher charge density and solidification rate as a result of magnetite nanoparticles (MNP) incorporation induced bending instability in the jet. The lower surface tension of the ethanol coagulation bath allowed the jet deformation and structure retention. Ethanol bath had a maximum fraction of helical MPFs among the various collector types used.

The mechanism of improving interfacial properties and mechanical performance in PEI-CNT-CF/PP composite system.

This article compares the mechanical, thermal, tribological, and flammability properties of polybutylene terephthalate composites based on synthetic wollastonite nanofibers, natural wollastonite and graphene oxide. Synthetic wollastonite nanofibers demonstrated excellent load-bearing ability, while graphene oxide exhibited excellent lubricating ability.