Fluorine-phosphate modified waterborne alkyd resin and preparation method thereof
A technology of water-based alkyd resin and phosphate ester, applied in the direction of phosphorus organic compounds, coatings, anti-corrosion coatings, etc., can solve the problems of poor adhesion, poor water resistance, poor acid and weather resistance of water-based alkyd resin, etc. The effect of strong force and excellent thermal stability
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Embodiment 1
[0033] A kind of alkyl acrylate phosphate X, its preparation steps are as follows:
[0034] Add 29.5 parts of hydroxyethyl acrylate and 0.4 parts of hydroquinone into the flask, stir evenly and heat to 50°C, slowly add 36.2 parts of phosphorus pentoxide and 33.9 parts of n-octanol in 3 batches at the same time, and complete the addition within 1.0h , then heat up to 82°C, keep warm for 3 hours, measure the acid value, stop the reaction when the measured acid value reaches the theoretical design value, lower the temperature, and discharge to obtain the alkyl acrylate phosphate X.
Embodiment 2
[0036] A kind of alkyl acrylate phosphate Y, its preparation steps are as follows:
[0037] Add 35.0 parts of hydroxyethyl methacrylate and 0.2 parts of hydroquinone into the flask, stir evenly and heat to 50°C, and slowly add 28.0 parts of phosphorus pentoxide and 36.8 parts of hexanol in 3 batches at the same time, in 1.5h After the internal addition, the temperature was raised to 82°C, the temperature was kept for 3 hours, and the acid value was measured. When the measured acid value reached the theoretical design value, the reaction was stopped, the temperature was lowered, and the material was discharged to obtain the alkyl acrylate phosphate Y.
Embodiment 3
[0039] A kind of alkyl acrylate phosphate Z, its preparation steps are as follows:
[0040] Add 28.0 parts of hydroxyethyl acrylate and 0.5 parts of hydroquinone into the flask, stir evenly and heat to 50°C. Slowly add 34.2 parts of phosphorus pentoxide and 37.3 parts of n-heptanol in 3 batches, and finish adding within 1.0 hours. Then the temperature was raised to 82°C, and the temperature was maintained for 3 hours to measure the acid value. When the measured acid value reached the theoretical design value, the reaction was stopped, the temperature was lowered, and the material was discharged to obtain the alkyl acrylate phosphate Z.
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