Glass article having coating with interpenetrating polymer network
A glass article includes a glass substrate and a coating disposed on the glass substrate. The coating includes a glass frit material and a binder material. The binder material includes a first polymer that has cross-linked first polymer chains and a second polymer that has second polymer chains that are linear, branched, or cross-linked. The cross-linked first polymer chains and the second polymer chains form an interpenetrating network in which the second polymer chains are intertwined on a molecular scale with the cross-linked first polymer chains.
1. A glass article comprising:
a glass substrate;
a coating disposed on the glass substrate, the coating including a glass frit material and a binder material, the binder material comprising a first polymer having cross-linked first polymer chains and a second polymer having second polymer chains that are linear, branched, or cross-linked, and the cross-linked first polymer chains and the second polymer chains forming an interpenetrating network in which the second polymer chains are intertwined with the cross-linked first polymer chains and further wherein the coating includes less than 11% of the binder material relative to a total weight of the coating; and
wherein the coating is chemically bonded to the glass substrate.
2. The glass article of claim 1 , wherein the coating includes at least 89% of the glass frit relative to a total weight of the coating.
3. The glass article as recited in claim 1 , wherein the first polymer includes a carbon-backbone polymer and the second polymer includes a silicon-backbone polymer.
4. The glass article as recited in claim 3 , wherein the silicon-backbone polymer includes polysiloxane.
5. The glass article as recited in claim 4 , wherein the carbon-backbone polymer includes a thermoset polymer.
6. The glass article as recited in claim 4 , wherein the carbon-backbone polymer includes polyurethane or epoxy.
7. The glass article as recited in claim 3 , wherein the silicon-backbone polymer includes polysilsesquioxane.
8. The glass article as recited in claim 1 , wherein the second polymer chains are cross-linked.
9. The glass article as recited in claim 1 , wherein the coating further comprises a third polymer having third polymer chains that are either linear, branched, or cross-linked, and the third polymer chains are also intertwined in the interpenetrating network with the cross-linked first polymer chains.
10. The glass article as recited in claim 9 , wherein the third polymer includes a thermoset polymer.
11. The glass article as recited in claim 1 , wherein the coating further comprises nanoparticles.
12. The glass article as recited in claim 11 , wherein the nanoparticles include silicon-containing nanoparticles, and relative to a total weight of the coating, the coating includes 0.5% to 5% of the silicon-containing nanoparticles and less than 11% of the binder material inclusive of the silicon-containing nanoparticles.
13. The glass article as recited in claim 12 , wherein the silicon-containing nanoparticles are chemically bonded with at least one of the first polymer chains or the second polymer chains.
14. The glass article as recited in claim 11 , wherein the nanoparticles include titanium-containing nanoparticles.
15. The glass article as recited in claim 1 , further comprising a substantially glass frit-free polymeric layer disposed on the coating.
16. The glass article as recited in claim 1 , wherein the coating further comprises a pigment.
17. The glass article as recited in claim 1 , wherein the glass substrate includes a low-E coating.