Production method of reactive organosilicon waterproofing agent
A production method and organosilicon technology, applied in the fields of chemistry and material science, can solve the problems of short validity period, poor effect, poor product stability, etc., and achieve the effects of simple and easy operation, easy availability of raw materials, and low cost of raw materials
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Embodiment 1
[0030] Embodiment 1 A kind of production method of reactive silicone water repellent
[0031] Add 1.5 parts of op-10, 2 parts of SDBS and 50 parts of deionized water into the reactor, and stir at 50°C for 20 minutes to obtain an emulsifier-water mixed system; use acetic acid to adjust the pH of the emulsifier-water mixed system to 5; 25 parts of methyltriethoxysilane were continuously added dropwise into the above reactor within 40 minutes, then 10 parts of DMC was added at a time, and then stirred and polymerized at 50°C for 60 minutes to obtain a milky white emulsion with blue light.
Embodiment 2
[0032] Embodiment 2 A kind of production method of reactive silicone water repellent
[0033] Add 1.9 parts of AEO-9, 2.2 parts of SDBS and 50 parts of deionized water into the reactor, stir at 70°C for 30 minutes to obtain an emulsifier-water mixed system, and adjust the pH of the emulsifier-water mixed system to 4 with hydrochloric acid. A mixture of 40 parts of methyltrimethoxysilane and 8 parts of DMC was continuously added dropwise into the above reactor within 50 minutes, and then stirred and polymerized at 70° C. for 120 minutes to obtain a milky white emulsion with blue light.
Embodiment 3
[0034] Embodiment 3 A kind of production method of reactive silicone water repellent
[0035] Add 1.2 parts of op-10, 2.5 parts of SDBS and 55 parts of deionized water into the reactor, stir at 75°C for 60 minutes to obtain an emulsifier-water mixed system, and use dodecylbenzenesulfonic acid to make the emulsifier-water mixed system The pH was adjusted to 1. 60 parts of propyltriethoxysilane and 10 parts of D 4 The mixture was continuously added dropwise into the above reactor within 60 minutes, and then stirred and polymerized at a constant temperature of 75°C for 60 minutes to obtain a milky white emulsion with blue light.
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