Calcium-silicate-based porous particles, composition, method of making and use thereof
AssigneeC-Crete Technologies, LLC
InventorsRouzbeh Shahsavari, Joseph B. Miller, Anil Desireddy, Kazuhiro Yamato
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Abstract
A method for synthesizing calcium-silicate-based porous particles (CSPPs) is described. Control over CSPP morphology and pore size is achieved through a refined solution-based synthesis, allowing loading of a variety of sealants. These particles, upon external stimuli, release the loaded sealant into the surrounding material. Methods of loading the CSPPs with loading sealant are described. The CSPPs may be used in pure form or mixed with another material to deliver self-healing, sealing and multi-functional properties to a physical structure. The composition of the CSPPs is described, along with methods of use of the CSPPs.
Claims18
Calcium-silicate based porous particles (CSPPs) comprising:
- a calcium-silicate structure, further comprising pores located on the CSPP's exterior surface;
- and an interior network of pores formed throughout the CSPP's structure, wherein the CSPPs are between 50 nanometer to 2 microns in average diameter, and wherein the CSPPs comprise a calcium to silicon atomic ratio of 0.05 to 2.0, and wherein the CSPPs comprise pores having an diameter size of 1-50 nanometers in average diameter and wherein the porous calcium-silicate structure is functionalized in the presence of functional groups selected from the group consisting of thamine groups, thiols, phosphines, hydrocarbon chains, and any combination thereof, and wherein said functional groups are functionalized on the inside surface, the outside surface, or both of the porous particles.
Dependencies are inferred from the claim text.