Chelate titanate polymer, preparation method thereof and application of chelate titanate polymer as composite solid propellant process additive
A chelated titanate and polymer technology, which can be used in the production of compressed gas, nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, attack equipment, etc. The infiltration speed of nitramine oxidant, the reduction of initial viscosity of the slurry, and the short adaptation period of the slurry can achieve the effects of prolonging the pot life of the slurry, improving the surface and interface properties, and good flow and leveling.
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Embodiment 1
[0033] A kind of chelate type titanate polymer, its preparation method concrete steps are as follows:
[0034] Step 1. Add 105g of tetrabutyl titanate into a three-necked flask equipped with a dehydration separator, condensing reflux and a stirring paddle, and add lactic acid (27.79g) dropwise while stirring at room temperature (25°C). After the dropwise addition is completed, Raise the temperature to carry out the transesterification reaction, the molar ratio of lactic acid to tetrabutyl titanate is 1:1, the reaction temperature is 70°C, the reaction time is 2h, the molar ratio of butanol to the initial tetrabutyl titanate in the reaction liquid When the ratio is 2:1, stop the reaction;
[0035] Step 2, continue to add N-n-butyldiethanolamine (49.75g) dropwise to the reaction solution to carry out transesterification reaction, the molar ratio of N-n-butyldiethanolamine to the initially added tetrabutyl titanate is 1:1, The reaction temperature is 80°C, the reaction time is 3...
Embodiment 2
[0039] A kind of chelate type titanate polymer, its preparation method concrete steps are as follows:
[0040] Step 1. Add 110g of tetraisopropyl titanate to a three-necked flask equipped with a dehydration separator, condensing reflux and a stirring paddle, and add lactic acid (31.37g) dropwise while stirring at room temperature. After the dropwise addition, the temperature is raised for esterification For the exchange reaction, the molar ratio of lactic acid to tetraisopropyl titanate is 0.9:1, the reaction temperature is 70°C, and the reaction time is 2 hours. The molar ratio of isopropanol to the initial tetraisopropyl titanate in the reaction liquid When the ratio is 1.8:1, the reaction stops;
[0041] Step 2, continue to dropwise add N-(2-cyanoethyl)diethanolamine (67.35g) to the reaction solution to carry out transesterification reaction, N-(2-cyanoethyl)diethanolamine and tetraisopropyl titanate initially added The molar ratio of the ester is 1.1:1, the reaction tempe...
Embodiment 3
[0045] A kind of chelate type titanate polymer, its preparation method concrete steps are as follows:
[0046] Step 1. Add 120g of tetraethyl titanate into a three-necked flask with dehydration separator, condensing reflux and stirring paddle, and add lactic acid (52.04g) dropwise while stirring at room temperature to carry out transesterification reaction. Lactic acid and titanic acid The molar ratio of tetraethyl titanate is 1.1:1, the reaction temperature is 80°C, the reaction time is 1h, and the reaction is stopped when the molar ratio of the ethanol generated in the reaction solution to the initially added tetraethyl titanate is 2:1;
[0047] Step 2. Continue to add triethanolamine (86.33g) dropwise to the reaction solution for transesterification. The molar ratio of triethanolamine to the initially added tetraethyl titanate is 1.1:1, the reaction temperature is 80°C, and the reaction time is 2h , stop the reaction when the molar ratio of the generated ethanol to the init...
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