Foam, composition, and method
A method of producing a foam is disclosed. The method includes providing an epoxy-containing compound, a cationic catalyst, an optional blowing agent, and at least one additive. The method further includes combining the epoxy-containing compound with the cationic catalyst, the optional blowing agent, and the at least one additive, wherein the epoxy-containing compound and the cationic catalyst react to polymerize the epoxy-containing compound to provide the foam having a density from about 0.3 lbs/ft 3 to about 5.0 lbs/ft 3 as measured by ASTM D1622. Further disclosed are the foam and a method for installing the foam.
1. A foam composition consisting of a resin matrix consisting of an epoxy-containing compound; a cationic catalyst, wherein the cationic catalyst is present at an amount of less than 5.0 weight %, based on the total weight of the composition, and comprises a superacid, a BF 3 dihydrate complex, a phosphoric acid derivative, or combination thereof; an optional blowing agent; and at least one additive; wherein the composition is free of an isocyanate compound, the foam having a density from about 0.3 lbs/ft 3 to about 5.0 lbs/ft 3 as measured by ASTM D1622.
2. The foam of claim 1 , wherein the epoxy-containing compound is bio-based, petrochemical based, or combination thereof.
3. The foam of claim 2 , wherein the bio-based epoxy compound is derived from linseed oil, corn oil, soybean oil, sunflower oil, safflower oil, canola oil, rapeseed oil, palm oil, camelina oil, fish oil, tall oil, algae oil, or combinations thereof.
4. The foam of claim 3 , wherein the bio-based epoxy compound is derived from linseed oil.
5. The foam of claim 1 , wherein the superacid is HBF 4 , CF 3 SO 3 H (triflic acid), HSbF 6 , HPF 6 , FSO 3 H, HClO 4 , CF 3 (CF 2 ) x —SO 3 H, FSO 3 H—SbF 5 (magic acid) or combinations thereof.
6. The foam of claim 1 , wherein the additive consists of a surfactant.
7. The foam of claim 1 , wherein the additive consists of a fire retardant.
8. The foam of claim 1 , wherein the additive consists of a co-reactant including a diol, a glycerin, or a combination thereof.
9. The foam of claim 5 , wherein the superacid has a pKa of about −8 to about −25.
10. The foam of claim 1 , wherein the cationic catalyst is present at an amount of about 0.05 wt. % to about 2.0 wt. %, based on the total composition.
11. The foam of claim 1 , wherein the blowing agent is present at an amount of about 5.0 wt. % to about 30.0 wt. %, based on the total composition.
12. The foam of claim 1 , wherein the cationic catalyst provides a gel time of about 5 seconds to about 180 seconds.
13. The foam of claim 11 , wherein the cationic catalyst provides a gel time of about 10 seconds to about 50 seconds.
14. The foam of claim 1 , wherein the additive consists of a catalyst carrier.
15. The foam of claim 14 , wherein the catalyst carrier consists of a polyhydroxyl compound.