A kind of polyacrylate polymer emulsifier and preparation method thereof
A polymer emulsifier, polyacrylate technology, applied in chemical instruments and methods, chemical/physical processes, transportation and packaging, etc., can solve the problem of small molecular emulsifiers and polymer emulsifiers. Good encapsulation effect, good emulsification effect, and high temperature stability improvement effect
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Embodiment 1
[0028] A polyacrylate polymer emulsifier, consisting of the following components in parts by weight:
[0029] 35 parts of acrylic acid, 35 parts of stearyl acrylate, 2 parts of allyloxy nonylphenoxy propanol polyoxyethylene ether, 3 parts of ammonium persulfate, 20 parts of sodium hydroxide, and 100 parts of water.
[0030] Preparation methods include:
[0031] Step 1: Add water, acrylic acid, octadecyl acrylate, allyloxynonylphenoxypropanol polyoxyethylene ether, and ammonium persulfate to the reaction with thermometer, shearing, stirring, and condensing reflux device according to weight In the kettle, shear and emulsify for 10 minutes;
[0032] Step 2: The temperature is slowly raised to 90°C and reacted for 4 hours;
[0033] Step 3: Add sodium hydroxide to neutralize, cool and discharge.
[0034] The weight-average relative molecular weight of the polymer emulsifier detected by GPC is 38600.
Embodiment 2
[0036] The stearyl acrylate in Example 1 was replaced with pentyl acrylate, and the others remained unchanged.
[0037] The weight-average relative molecular weight of the polymer emulsifier detected by GPC is 43400.
Embodiment 3
[0039] The octadecyl acrylate in Example 1 was replaced with hexyl methacrylate, and the others were unchanged.
[0040] The weight-average relative molecular weight of the polymer emulsifier detected by GPC is 43,000.
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