Search results for "Curing agent"

showing 2 items of 2 documents

Leach-Proof Sol–Gel Microcapsules as Curing Agents for One-Pot Thermosetting Resins

2013

The sol-gel microencapsulation of free-radical initiator benzoyl peroxide in sol-gel methyl-modified silica microcapsules of core/shell geometry allows curing of acrylate-based polyurethane and polyester resin formulations sprayed from a pressurized can without the need to compartmentalize reactants from the initiator to cross-link. These results open the route to widespread application of sol-gel microcapsules to efficiently cure polymer and composite mixtures that are widely used as functional coatings, molding compounds, adhesives, and sealants.

Polyester resinMaterials scienceGeneral Chemical EngineeringFunctional coatingThermosetting polymerBenzoyl peroxidechemistry.chemical_compoundPolymer chemistrySol-gelsmedicineEnvironmental ChemistryCuring agentsCuringSol-gel processMicroencapsulationCore/shellCuring (chemistry)PolyurethaneOne potchemistry.chemical_classificationAcrylateBenzoyl peroxideFree radical polymerizationProtective coatingsRenewable Energy Sustainability and the EnvironmentFree radical initiatorsGeneral ChemistryPolymerThermosetsMicrocapsuleschemistryChemical engineeringAdhesivemedicine.drugACS Sustainable Chemistry & Engineering
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Enhanced one-component spray polyurethane foams via sol-gel microspheres doped with aqueous glycerol

2013

The sol-gel microencapsulation of aqueous glycerol in silica-based microspheres affords functional materials that can be used to cure one-component polyurethane foams (OCF) formulations affording better and greener foam formation. These findings are important and may open the route to more sustainable materials, such as foams, coatings, adhesives, and sealants that are widely utilized in many industrial sectors. © 2013 American Chemical Society.

GlycerolPolyurethaneMaterials scienceGeneral Chemical EngineeringMicrospherechemistry.chemical_compoundCuring agentPolymer chemistryGlycerolEnvironmental ChemistryMicroencapsulationPolyurethaneSol-gelSettore ING-IND/24 - Principi Di Ingegneria ChimicaSol-gelAqueous solutionOne-component foamRenewable Energy Sustainability and the EnvironmentComponent (thermodynamics)DopingGeneral ChemistryMicroencapsulation polyurethane one-component foam sol-gel curing agent glycerolchemistryChemical engineeringlipids (amino acids peptides and proteins)Adhesive
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