Steel structure fireproof epoxy coating and preparation method thereof
An epoxy coating and steel structure technology, applied in fire-resistant coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor paint film adhesion, decreased fire resistance, loss of fire resistance, etc., and achieve low cost and high resistance. The effect of high fuel efficiency and high productivity
Image
Examples
Embodiment 1
[0040] (1) Preparation of carboxyl-containing chlorinated paraffin 42: Dissolve 20 g of chlorinated paraffin 42 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 55° C. for 30 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 42.
[0041] (2) Preparation of chlorinated paraffin 42 containing acid chloride: add 70 mol of chlorinated paraffin 42 containing carboxyl to the reaction kettle, dropwise add 120 mol of thionyl chloride, stir and heat up to reflux, and react for 6 hours to obtain chlorinated paraffin 42 containing acid chloride .
[0042] (3) Preparation of hydroxyl-terminated phosphorus-containing chlorinated paraffin 42: add 100mol [(6-oxo-6H-dibenzo[C,E][1,2]oxaphosphorinane-6- Base) methyl] butanediol and an appro...
Embodiment 2
[0049] (1) Preparation of carboxyl-containing chlorinated paraffin 52: Dissolve 20 g of chlorinated paraffin 52 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 80° C. for 10 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol. The product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 52.
[0050] (2) Preparation of chlorinated paraffin 52 containing acid chloride: add 70 mol of chlorinated paraffin 52 containing carboxyl to the reaction kettle, dropwise add 120 mol of thionyl chloride, stir and heat up to reflux, and react for 4 hours to obtain chlorinated paraffin 52 containing acid chloride .
[0051] (3) Preparation of hydroxyl-terminated phosphorus-containing chlorinated paraffin 52: add 100mol [(6-oxo-6H-dibenzo[C,E][1,2]oxaphosphorinane-6- base) methyl] butanediol and an appropria...
Embodiment 3
[0058] (1) Preparation of carboxyl-containing chlorinated paraffin 70: Dissolve 20 g of chlorinated paraffin 52 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 65° C. for 24 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100°C for 5 hours to obtain carboxyl-containing chlorinated paraffin 70.
[0059] (2) Preparation of chlorinated paraffin 70 containing acid chloride: add 70mol chlorinated paraffin 70 containing carboxyl group in the reaction kettle, drop 120mol thionyl chloride, stir and heat up to reflux, react for 5h, and obtain chlorinated paraffin 70 containing acid chloride .
[0060] (3) Preparation of hydroxyl-terminated phosphorus-containing chlorinated paraffin 70: add 100mol [(6-oxo-6H-dibenzo[C,E][1,2]oxaphosphorin-6- Base) methyl] butanediol and an appropriate amount of a...
PUM
Login to View More Abstract
Description
Claims
Application Information
- IPC
- C09D163/00; C09D5/18; C08G59/30
- CPC
- C08G59/304; C08G59/308; C08K2003/323; C08L2201/02; C09D5/18; C09D163/00; C08K3/32; C08K3/34
- Inventors
- 李艳艳