Review Article

Self-Healing Materials Systems: Overview of Major Approaches and Recent Developed Technologies

Table 2

Literature summary of self-healing chemicals investigated for the microencapsulation approach. Adapted from [34].

Self-healing agentCatalystSelf-healing reactionReference

Dicyclopentadiene (DCPD)Bis(tricyclohexylphosphene) benzylidine ruthenium (IV) dichloride (Grubbs’ catalyst)Ring-opening metathesis polymerization[6, 21, 22, 34, 46, 47, 49, 8390]

5-Ethylidene-2-norbornene (ENB)Bis(tricyclohexylphosphene) benzylidine ruthenium (IV) dichloride (Grubbs’ catalyst)Ring-opening metathesis polymerization[86]

DCPD/ENB blendsBis(tricyclohexylphosphene) benzylidine ruthenium (IV) dichloride (Grubbs’ catalyst)Ring-opening metathesis polymerization[87]

Mixture of hydroxyl end functionalised Polydimethylsiloxane (HOPMDS) and Polydiethoxysiloxane (PDES)Di-n-butyltin dilauratePolycondensation[91]

EpoxyAminePolycondensation[48, 51, 92]

Styrene-based systemCobalt naphthenate, dimethylanilineRadical polymerization[38]