Silicone-based protective formulations

A method for increasing a peel-resistance of a coating or sealant for a substrate, comprising:

• applying a formulation to the substrate that hardens to form the coating or sealant, the formulation comprising a fluid matrix, a first microcapsule having a silicone-based resin formulation encapsulated by a shell wall, and a second microcapsule having a silicone-based curing formulation encapsulated by a shell wall, wherein a degradation of the coating or sealant causes the first microcapsule and the second microcapsule to rupture, thereby mixing the encapsulated silicone-based resin formulation and the encapsulated silicone-based curing formulation at the site of the degradation and increasing the peel-resistance of the coating or sealant,
• wherein the encapsulated silicone-based resin formulation includes a first polydimethylsiloxane resin, a first silicone fluid, a first functionalized alkoxysilane, and a catalyst capable of catalyzing hydrosilylation reactions;
• and
• wherein the encapsulated silicone-based curing formulation includes a second polydimethylsiloxane resin, a second silicone fluid, a second functionalized alkoxysilane, and a hydrogen-terminated dimethyl siloxane resin.

A self-healing composition comprising:

• a fluid matrix,
• a first microcapsule having a silicone-based resin formulation encapsulated by a shell wall and a second microcapsule having a silicone-based curing formulation encapsulated by a shell wall,
• wherein the encapsulated silicone-based resin formulation includes a first polydimethylsiloxane resin, a first silicone fluid, a first functionalized alkoxysilane, and a catalyst capable of catalyzing hydrosilylation reactions;
• and
• wherein the encapsulated silicone-based curing formulation includes a second polydimethylsiloxane resin, a second silicone fluid, a second functionalized alkoxysilane, and a hydrogen-terminated dimethyl siloxane resin.

A method of preparing a self-healing composition, comprising:

• encapsulating a silicone-based resin formulation in a shell wall to form a first microcapsule and encapsulating a silicone-based curing formulation in a shell wall to form a second microcapsule, and
• adding a first amount of the first microcapsule and a second amount of the second microcapsule to a fluid matrix to obtain the self-healing composition;
• wherein the silicone-based resin formulation comprises a first polydimethylsiloxane resin, a first silicone fluid, a first functionalized alkoxysilane, and a catalyst capable of catalyzing hydrosilylation reactions;
• and
• wherein the silicone-based curing formulation comprises a second polydimethylsiloxane resin, a second silicone fluid, a second functionalized alkoxysilane, and a hydrogen-terminated dimethyl siloxane resin.