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US 2022/0371228 A1Published application
Fabrication method of transparent 3d polydimethylsiloxane devices with polycaprolactone molds
AssigneeSaudi Arabian Oil Company
InventorsYara Alzahid, Abdulkareem AlSofi
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Abstract
A method of forming a model of a porous structure includes three dimensionally printing a mold of the porous structure using a polycaprolactone mold material, filling the mold with a polymer mixture, and heating the filled mold at a temperature above a melting temperature of the mold material to cure the polymer mixture, where the cured polymer mixture forms the model of the porous structure.
Claims20
A method, comprising:
- three dimensionally printing a mold of a porous structure using a mold material, wherein the mold material comprises polycaprolactone;
- filling the mold with a polymer mixture;
- and
- heating the filled mold at a temperature above a melting temperature of the mold material to cure the polymer mixture, wherein the cured polymer mixture forms a model of the porous structure.
1 more element
A method, comprising:
- three dimensionally printing a mold of a porous structure using a mold material, wherein the mold material comprises polycaprolactone;
- filling the mold with a polymer mixture of polydimethylsiloxane and a curing agent having a ratio of polydimethylsiloxane to curing agent ranging from 14:1 to 7:1;
- and
- heating the filled mold at a first temperature for at least 4 hours to solidify the polymer mixture, wherein the first temperature is lower than a melting temperature of the mold material;
- heating the filled mold at a second temperature greater than the melting temperature of the mold material to melt the mold;
- and
- removing the melted mold material from the solidified polymer mixture to provide a model of the porous structure.
4 more elements
A mold assembly, comprising:
- a mold of a porous structure formed of a plurality of bulbs connected together by a plurality of stems, wherein the mold is made of polycaprolactone;
- and
- a polymer mixture comprising monomers of polydimethylsiloxane and a curing agent having a ratio of polydimethylsiloxane to curing agent of about 10:1;
- wherein the mold of the porous structure is submersed in the polymer mixture.
1 more element
Dependencies are inferred from the claim text.