Epoxy/modified silicon dioxide corrosion resistant nanocomposite material and preparation method thereof
View Patent ↗An epoxy/modified silicon dioxide corrosion resistant nanocomposite material and a preparation method thereof are disclosed. The method includes the steps of: dispersing TS(TEOS-SiO 2 ) or APTES/TEOS-SiO 2 (TAS) in solvent so as to form TS solution or TAS solution; adding triphenylolmethane triglycidyl ether and 1,4-butanediol diglycidyl ether into the TS solution or TAS solution to produce glycidyl ether/TS solution or glycidyl ether/TAS solution. Add a curing agent into the glycidyl ether/TS solution or glycidyl ether/TAS solution to generate epoxy/TS solution or epoxy/TAS solution. After curing, obtain epoxy/modified silicon dioxide nanocomposite corrosion resistant material. The material is applied to optoelectronics or other fields for corrosion prevention.
1. A preparation method of epoxy/modified silicon dioxide corrosion resistant nanocomposite material, comprising the steps of:
dispersing tetraethyl orthosilicate-silicon dioxide (TEOS-SiO 2 ) or 3-aminopropyltriethoxysilane (APTES)/TEOS-SiO 2 in a solvent to form a TEOS-SiO 2 solution or a APTES/TEOS-SiO 2 solution;
adding triphenylolmethane triglycidyl ether and 1,4-butanediol diglycidyl ether into the TEOS-SiO 2 solution or APTES/TEOS-SiO 2 solution to produce glycidyl ether/TEOS-SiO 2 solution or glycidyl ether/APTES/TEOS-SiO 2 solution;
adding a curing agent into the glycidyl ether/TEOS-SiO 2 solution or glycidyl ether/APTES/TEOS-SiO 2 solution to generate epoxy/TEOS-SiO 2 solution or epoxy/APTES/TEOS-SiO 2 solution; and
curing the epoxy/TEOS-SiO 2 solution or the epoxy/APTES/TEOS-SiO 2 solution to produce epoxy/modified silicon dioxide nanocomposite corrosion resistant material while the epoxy/modified silicon dioxide is epoxy/TEOS-SiO 2 or epoxy/APTES/TEOS-SiO 2 , wherein during said curing process a temperature is elevated from room temperature to 50° C. to be maintained at said 50° C. for 11-12 hours, wherein the temperature is further increased from said 50° C. to 80° C. to be maintained at said 80° C. for 0.5 hour with the following increase of the temperature from said 80° C. to 100° C. to be maintained at said 100° C. for 6-8 hours, wherein the temperature is further increased from said 100° C. to 120° C. to be maintained at said 120° C. for 0.5 hour, and wherein the temperature is consequently decreased from said 120° C. to the room temperature;
wherein the TEOS-SiO 2 or the APTES/TEOS-SiO 2 constitutes 1-10 wt % of the epoxy/modified silicon dioxide nanocomposite corrosion resistant material.
2. The preparation method as claimed in claim 1 , wherein the step of dispersing TEOS-SiO 2 or APTES/TEOS-SiO 2 in the solvent to form TEOS-SiO 2 solution or APTES/TEOS-SiO 2 solution further comprises the step of using a sol-gel method to prepare the TEOS-SiO 2 .
3. The preparation method as claimed in claim 2 , wherein the sol-gel method comprises the step of hydrolysis and condensation of tetraethyl orthosilicate, alcohol and an acid to produce a TEOS-SiO 2 sol-gel solution.
4. The preparation method as claimed in claim 3 , wherein the step of dispersing TEOS-SiO 2 or APTES/TEOS-SiO 2 in the solvent to form the TEOS-SiO 2 solution or the APTES/TEOS-SiO 2 solution further comprises the step of modifying the TEOS-SiO 2 to produce the APTES/TEOS-SiO 2 .
5. The preparation method as claimed in claim 4 , wherein the step of modifying the TEOS-SiO 2 to produce the APTES/TEOS-SiO 2 further comprises the step of reacting APTES with an acid to produce a first solution.
6. The preparation method as claimed in claim 5 , wherein after the step of reacting APTES with the acid to produce a first solution, the method further comprises the steps of adding the first solution into the TEOS-SiO 2 sol-gel solution and mixing evenly to produce APTES/TEOS-SiO 2 .
7. The preparation method as claimed in claim 1 , wherein in the step of dispersing TEOS-SiO 2 or APTES/TEOS-SiO 2 in solvent to form the TEOS-SiO 2 solution or the APTES/TEOS-SiO 2 solution, the solvent is N,N-dimethylacetamide.
8. The preparation method as claimed in claim 1 , wherein a weight ratio of the triphenylolmethane triglycidyl ether to the 1,4-butanediol diglycidyl ether is 1:1.
9. The preparation method as claimed in claim 1 , wherein the curing agent is trimethylolpropane tris[poly(propylene glycol), amine terminate] ether.
10. The preparation method as claimed in claim 9 , wherein a weight ratio of the triphenylolmethane triglycidyl ether to the trimethylolpropane tris[poly(propylene glycol), amine terminated] ether is 1:0.5408.
11. The preparation method as claimed in claim 9 , wherein a weight ratio of the 1,4-butanediol diglycidyl ether to the trimethylolpropane tris[poly(propylene glycol), amine terminated] ether is 1:0.8209.
12. The preparation method as claimed in claim 1 , wherein a reaction temperature of the step of adding the curing agent into the glycidyl ether/TEOS-SiO 2 solution or glycidyl ether/APTES/TEOS-SiO 2 solution to generate epoxy/TEOS-SiO 2 solution or epoxy/APTES/TEOS-SiO 2 solution is room temperature.
13. The preparation method as claimed in claim 1 , wherein the epoxy/modified silicon dioxide corrosion resistant nanocomposite material is the epoxy/APTES/TEOS-SiO 2 .
14. The preparation method as claimed in claim 1 , wherein the TEOS-SiO 2 or the APTES/TEOS-SiO 2 constitutes 5 wt % of the epoxy/modified silicon dioxide nanocomposite corrosion resistant material.