A kind of polymer emulsifier for mixed emulsion explosive and preparation method thereof
A polymer emulsifier and emulsion explosive technology, which is used in non-explosive/non-thermal agent components, explosives, offensive equipment, etc., can solve the problems of emulsifier anti-turbulence performance and storage stability can not meet the requirements, and achieve superior anti-turbulence. Effects on performance and storage stability
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Embodiment 1
[0030] Embodiment 1: the preparation of emulsifier I
[0031] Install stirring, thermometer and nitrogen protection device on the three-necked flask, add 160g (Mn=800, terminal olefin content greater than 85%) polyisobutene, stir and heat up to 70°C, add 25g maleic anhydride and 1.6g benzoyl peroxide For tert-butyl ester, keep stirring at 70°C for 2h, raise the temperature to 180°C, react for 7h, finish the reaction, and filter to obtain polyisobutylene succinic anhydride.
[0032] Put the obtained polyisobutylene succinic anhydride into the original three-necked bottle, add 140g of 220N base oil, stir and raise the temperature to 60°C, add 42.3g of tert-butyl-L-serine methyl ester hydrochloride and 20.2g of triethylamine, keep stirring 0.5h, then add 40gN,N`-dicyclohexylcarbodiimide and 3.4g4-dimethylaminopyridine, keep stirring for 0.5h, heat up to 110°C, keep stirring for 6h, finish the reaction, filter to obtain 354g emulsifier I, The acid value is 36.9mgKOH / g, the viscos...
Embodiment 2
[0033] Embodiment 2: the preparation of emulsifier II
[0034] Install the stirring, thermometer and nitrogen protection device on the three-necked flask, add 200g (Mn=1000, terminal olefin content is greater than 85%) polybutene, stir to raise the temperature to 70°C, add 28.6g maleic acid and 1.6g peroxide Oxybenzoyl tert-butyl ester was kept at 70°C and stirred for 1 hour, heated to 200°C, reacted for 3 hours, and the reaction was terminated, and polybutene succinic acid was obtained by filtration.
[0035] Put the obtained polybutene succinic acid into the original three-necked bottle, add 148g of 220N base oil, stir and raise the temperature to 70°C, add 50.8g of tert-butyl-L-serine ethyl ester hydrochloride and 24g of triethylamine, keep stirring 0.5h, then add 30.8g 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and 4.2g 4-dimethylaminopyridine, keep stirring for 0.5h, heat up to 110°C, keep stirring After 4 hours, the reaction was completed, and 392 g of ...
Embodiment 3
[0036] Embodiment 3: the preparation of emulsifier III
[0037] Install the stirring, thermometer and reflux condenser on the three-necked flask, and add 240g (Mn=1200, terminal olefin content greater than 85%) polyisobutene, stir and raise the temperature to 80°C, add 27.4g maleic acid and 2.1g supernatant Oxybenzoyl tert-butyl ester, kept stirring at 80°C for 1.5h, raised the temperature to 240°C, reacted for 3h, terminated the reaction, and obtained polyisobutylene succinic acid by filtration.
[0038] Put the obtained polyisobutylene succinic acid into the original three-necked flask, add 171.2g of 220N base oil, stir and raise the temperature to 70°C, add 41.1g of L-threonine methyl ester hydrochloride and 20.6g of triethylamine, keep stirring for 1 hour, and then Add 47.9g of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and 3.9g of 4-dimethylaminopyridine, keep stirring for 1h, heat up to 120°C, keep stirring for 6h, and end the reaction. 434g of emulsifi...
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