Fluorinated, nano GO-reinforced dual-cured alkyd-polyester
An alkyd-polyester paint which includes a graphene oxide (GO)-modified resin, benzoyl peroxide, a diisocyanate, a pigment, a solvent, and one or more components such as a tertiary amine and a metal carboxylate. The GO-modified resin includes graphene oxide, 3,3′difluorodiallyl phthalate and tetrafluorophthalic anhydride.
1 . An alkyd-polyester paint, comprising:
a graphene oxide (GO)-modified resin, benzoyl peroxide, a diisocyanate, a pigment, a solvent, and one or more selected from the group consisting of a tertiary amine and a metal carboxylate,
the GO-modified resin comprising graphene oxide, 3,3′difluorodiallyl phthalate and tetrafluorophthalic anhydride.
2 . The alkyd-polyester paint of claim 1 , wherein the GO is 0.1-5 wt % of the weight of the resin solids.
3 . The alkyd-polyester paint of claim 1 , wherein the 3,3′difluorodiallyl phthalate is 3-10 wt % of the total weight of the alkyd-polyester paint.
4 . The alkyd-polyester paint of claim 1 , wherein the tetrafluorophthalic anhydride is 3-10 wt % of the total weight of the alkyd-polyester paint.
5 . The alkyd-polyester paint of claim 1 , wherein the diisocyanate is one or more selected from the group consisting of hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), and a HDI trimer/IPDI.
6 . The alkyd-polyester paint of claim 1 , wherein the tertiary amine is one or more selected from the group consisting of N,N-dimethylaniline and N,N-dimethyl-p-toluidine.
7 . The alkyd-polyester paint of claim 1 , wherein the metal carboxylate is cobalt octoate.
8 . The alkyd-polyester paint of claim 1 , wherein the pigment is at least one selected from the group consisting of titanium dioxide, yellow iron oxide, red iron oxide, carbon black and black iron oxide.
9 . The alkyd-polyester paint of claim 1 , wherein the pigment is 25-40 wt % of the total weight of the alkyd-polyester paint.
10 . The alkyd-polyester paint of claim 1 , further comprising one or more selected from the group consisting of a flow agent, an anti-settling agent, a foam control agent, a UV-absorber, and an odor masking additive.
11 . The alkyd-polyester paint of claim 1 , wherein the solvent is one or more selected from the group consisting of ethyl acetate and xylene.
12 . The alkyd-polyester paint of claim 1 , wherein the solvent is a mixture of ethyl acetate and xylene.
13 . The alkyd-polyester paint of claim 1 , wherein ethyl acetate is 30-70% of the total volume of the solvent and xylene is 30-70% of the total volume of the solvent.
14 . The alkyd-polyester paint of claim 1 , wherein the solvent is 20-30 wt % of the total weight of the paint.
15 . A method of making the alkyd-polyester paint of claim 1 , comprising:
mixing a polyol component, pentaerythritol, phthalic anhydride, and tetrafluorophthalic anhydride to form a polymer backbone;
mixing 3,3′-difluorodiallyl phthalate and graphene oxide with the polymer backbone to form the GO-modified resin;
thinning the GO-modified resin with a solvent to form a solution;
adding the curing agent, the co-promoter of the curing agent, the pigment, and the performance additive to the solution to form the alkyd-polyester paint.
16 . The method of claim 15 , wherein the mixing to form the polymer backbone is at 150-300° C.
17 . The method of claim 15 , wherein the adding to form a GO-modified resin is at 25-100° C.
18 . The alkyd-polyester paint of claim 1 , having a color change (ΔE) of 0-2.0 after 5,000 hours of UV irradiation.
19 . The alkyd-polyester paint of claim 1 , having 0-10% thermal degradation up to 80° C.
20 . The alkyd-polyester paint of claim 1 , having volatile organic compound content of less than 100 g L −1 .