A Fast and Room-temperature Self-healing Thermal Conductive Polymer Composite

Dynamic Cross-Linked Polyurea/Polydopamine Nanocomposites for Photoresponsive Self-Healing and Photoactuation

“…The nanocomposites exhibited better mechanical properties than pure DCPU (Figure 4a and Video S1), confirming that the PDA particles had good compatibility with the DCPU matrix. This behavior also suggests that the facile synthetic method demonstrated here is superior to that of previously reported nanocomposites doped with graphene oxide 23,36 or carbon nanotubes, 28 which require complicated pretreatments to effectively disperse the nanofiller in the polymer matrix.…”

“…17 In addition, carbon nanotubes, 18,19 gold nanoparticles, 20 eutectic gallium indium particles, 21 and silver nanoparticles 22 have been used to prepare multiresponsive self-healing composites. Li et al 23 demonstrated a strategy for producing a self-healing poly(dimethylsiloxane)/graphene composite via a complicated pretreatment and hot pressing. Therefore, a facile strategy involving the simple incorporation of nanofillers into the polymeric matrix for fabricating a self-healing composite with multifunctional properties is desirable.…”

Enhancement of intrinsic thermal conductivity of liquid crystalline epoxy through the strategy of interlocked polymer networks

“…Fig. S17 (ESI †) illustrates that the checker-board pattern-like scratches on ILLCE 0.500/0.6 -3 disappear completely after treatment at 150 1C for 30 min and 90 1C for 3 h. In addition, the damaged thermal conduction paths can also be reconnected, 69,72 as demonstrated by the variation in thermal conductivity. Having been scratched, the thermal conductivity is decreased from 0.329 W m À1 K À1 to 0.285 W m À1 K À1 .…”

Advances and Challenges of Self-Healing Elastomers: A Mini Review

“…According to the healing process proposed by Wool et al [ 43 , 56 ], chain segments with low surface tension and molecular weight preferentially migrate to the interfaces in the surface rearrangement stage. It may be a new research direction for design of self-healing elastomers with new functions through controlling molecular weight, molecular weight distribution, and functional-group placement.…”

“…Due to the potential technological relevance in various fields of self-healing polymers and the substantial for sustainable development, endowing the polymers with self-healing capability and exploring the fundamental mechanism underlying the healing process have attracted increasing interest [ 40 , 41 , 42 , 43 ]. In early 1980s, a theory of crack healing of polymers was first established by Wool et al [ 44 , 45 ] in which the crack healing process of thermoplastic polymers was divided into five parts, termed surface rearrangement, surface approach, wetting, diffusion, and randomization.…”