Repairing Polymers Using Oscillating Magnetic Field

Abstract

Repair of physically separated thermoplastic polymers containing γ-Fe2 O3 nanoparticles without sacrificing their mechanical properties is achieved by applying an oscillating magnetic field. As γ-Fe2 O3 nanoparticles oscillate at the frequency of the magnetic field, localized amorphous flow occur, and a permanent repair of physically separated polymeric films is achieved.

Sparsely-distributed silica/PMMA composite particles prepared by static polymerization in aqueous silica dispersion

“…Such materials are expected to provide a new class of building blocks and exhibit unusual, possibly unique optical, mechanical, rheological, electrical, catalytic and flame retardant properties [12][13][14][15][16][17][18][19]. Of the various nanostructures of organic-inorganic composite particles, core-shell nanocomposite particles in which polymer particles (core) are coated by smaller silica particles (shell) have been extensively reported [2,[20][21][22][23][24][25][26][27][28].…”

Self-healing polymers and composites

“…There are a number of variations in the self-healing systems described above that are beginning to garner significant interest, but have thus far been reported infrequently in the literature and therefore was not discussed in great detail herein. [240][241][242][243][244][245][246][247][248] Additionally, the burgeoning field of computational modelling of the different healing mechanisms is continually providing insights into ideal polymer and composite design parameters for, among other things, improved scalability and healing capabilities. [249][250][251][252][253][254][255][256][257][258][259][260][261][262][263][264][265][266][267] While future endeavours will undoubtedly improve current healing mechanisms towards efficient, fully autonomic and biomimetic healing materials, as well as yield other approaches to imparting autonomic repair, future research thrusts need to concentrate on issues related to employing self-healing materials in industrial applications.…”

Synthetic and Physicochemical Aspects of Advanced Stimuli‐Responsive Polymers

“…Polymer conformational changes as well as packing of responsive segments are significant contributors to the stimuli-responsive properties, and thermoplastic [163][164][165] and thermosetting [166][167][168][169] stimuli-responsive components of solids networks illustrated in Figure 1.5 represent only a fraction of what will become available in the future. There is an endless list of future applications and technologies that will take an advantage of these materials [170,171].…”