Surface coating for building aluminum alloy template capable of preventing concrete adhesion and preparation method of surface coating
A technology of aluminum alloy formwork and surface coating, applied in the direction of coating, etc., to achieve the effect of high mechanical strength, excellent chemical stability, and high bonding strength
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Examples
Embodiment 1
[0036] Preparation of modified epoxy resin:
[0037] S1. Under the protection of nitrogen, add 100g of bisphenol A and 300g of epichlorohydrin into the reaction flask, heat to 80°C under stirring, add 1g of tetrabutylammonium bromide, and react for 5h. After the reaction is over, distill under reduced pressure to remove excess Epichlorohydrin, intermediate one;
[0038] S2. Under the protection of nitrogen, add Intermediate 1 and 1.5L of toluene into the reaction flask, heat to 80°C under stirring, add sodium hydroxide, and react for 3 hours to obtain Solution 1;
[0039] S3. Add 100g of bisphenol A to solution 1, heat to 80°C, react for 3 hours, cool the reaction solution to room temperature, add disodium hydrogen phosphate to adjust the pH to 6-7, filter, and wash the filtrate with deionized water for 3 Second, the toluene is removed by organic phase decompression distillation to obtain bisphenol A epoxy resin;
[0040] S4. Under the protection of nitrogen, dissolve 50g of...
Embodiment 2
[0043] Preparation of modified epoxy resin:
[0044] S1. Under the protection of nitrogen, add 100g of bisphenol A and 350g of epichlorohydrin into the reaction flask, heat to 80°C under stirring, add 1g of tetrabutylammonium bromide, and react for 5h. After the reaction is over, distill under reduced pressure to remove excess Epichlorohydrin, intermediate one;
[0045] S2. Under the protection of nitrogen, add Intermediate 1 and 1.5L of toluene into the reaction flask, heat to 80°C under stirring, add sodium hydroxide, and react for 3 hours to obtain Solution 1;
[0046] S3. Add 100g of bisphenol A to solution 1, heat to 80°C, react for 3 hours, cool the reaction solution to room temperature, add disodium hydrogen phosphate to adjust the pH to 6-7, filter, and wash the filtrate with deionized water for 3 Second, the toluene is removed by organic phase decompression distillation to obtain bisphenol A epoxy resin;
[0047] S4. Under the protection of nitrogen, dissolve 50g of...
Embodiment 3
[0050] Preparation of modified epoxy resin:
[0051] S1. Under the protection of nitrogen, add 80g of bisphenol A and 300g of epichlorohydrin into the reaction flask, heat to 80°C under stirring, add 1g of tetrabutylammonium bromide, and react for 5h. After the reaction, the excess is distilled off under reduced pressure. Epichlorohydrin, intermediate one;
[0052] S2. Under the protection of nitrogen, add Intermediate 1 and 1.5L of toluene into the reaction flask, heat to 80°C under stirring, add sodium hydroxide, and react for 3 hours to obtain Solution 1;
[0053] S3. Add 80g of bisphenol A to solution 1, heat to 80°C, react for 3 hours, cool the reaction solution to room temperature, add disodium hydrogen phosphate to adjust the pH to 6-7, filter, and wash the filtrate with deionized water for 3 Second, the toluene is removed by organic phase decompression distillation to obtain bisphenol A epoxy resin;
[0054] S4. Under nitrogen protection, dissolve 50g of hexafluorobu...
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Description
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Application Information
- IPC
- C09D187/00; C09D127/18; C09D7/62; C08G81/02; C08F220/24; C08F230/08; C08G59/06
- CPC
- C08F220/24; C08G59/063; C08G81/024; C08K2003/2241; C08K2201/011; C08L2205/03; C09D187/005; C09D7/62
- Inventors
- 费邦忠; 周正华