Santos, Sadella C. published the artcileEffect of microcapsule content on Diels-Alder room temperature self-healing thermosets, Computed Properties of 1761-71-3, the publication is Polymers (Basel, Switzerland) (2020), 12(12), 3064, database is CAplus and MEDLINE.
A furan functionalized epoxy-amine thermoset with an embedded microcapsule healing system that utilizes reversible Diels-Alder healing chem. was used to investigate the influence of microcapsule loading on healing efficiency. A urea-formaldehyde encapsulation technique was used to create capsules with an average diameter of 150μm that were filled with a reactive solution of bismaleimide in Ph acetate. It was found that optimum healing of the thermoset occurred at 10 weight% microcapsule content for the compositions investigated. The diffusion of solvent through the crack interface and within fractured samples was investigated using anal. diffusion models. The decrease in healing efficiency at higher microcapsule loading was attributed partially to solvent-induced plasticization at the interface. The diffusion anal. also showed that the 10% optimum microcapsule concentration occurs for systems with the same interfacial solvent concentration This suggests that addnl. phys. and chem. phenomena are also responsible for the observed optimum. Such phenomena could include a reduction in surface area available for healing and the saturation of interfacial furan moieties by reaction with increasing amounts of maleimide. Both would result from increased microcapsule loading.
Polymers (Basel, Switzerland) published new progress about 1761-71-3. 1761-71-3 belongs to quinuclidine, auxiliary class Ploymers, name is 4,4-Diaminodicyclohexyl methane, and the molecular formula is C13H26N2, Computed Properties of 1761-71-3.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider