Method for synthesizing halogen substituent maleimide heat-proof flame-proof resin emulsion
A technology of flame retardant resin and synthesis method, which is applied in the field of polymer emulsion preparation, can solve the problems of polymerization method discussion and slow reaction speed, achieve the effect of shortening the production cycle and making up for the low utilization rate of equipment
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Embodiment 1
[0053] A. Preparation of Primary Emulsion
[0054] Add 30 parts of desalted water, 0.3 parts of sodium lauryl sulfate, 0.7 parts of styrene, 0.3 parts of acrylonitrile, and 0.1 parts of potassium persulfate into a stirred reactor at 30°C, and start stirring for emulsification. After 30 minutes of emulsification, the temperature of the water phase in the reactor was raised to 78° C. within 30 minutes, and kept at a constant temperature for 10 minutes to form the primary emulsion (a).
[0055] B. Preparation of monomer mixture
[0056] Add 30 parts of N-tribromophenylmaleimide, 44 parts of styrene, 25 parts of acrylonitrile, and 0.1 part of mercaptan into the mixing tank at 30°C, start stirring and mix to form a homogeneous monomer mixture (b) .
[0057] C. Preparation of Monomer Emulsion
[0058] Add 130 parts of desalted water, 0.35 parts of potassium persulfate, and 2.7 parts of sodium lauryl sulfate into the emulsifier at 30°C, start stirring and add (b) into the emulsifi...
Embodiment 2
[0065] A. Preparation of Primary Emulsion
[0066] Add 30 parts of desalted water, 0.3 parts of sodium lauryl sulfate, 1.0 part of acrylonitrile, and 0.15 parts of potassium persulfate into a reactor equipped with stirring at 28°C, and start stirring for emulsification. After 30 minutes of emulsification, the temperature of the water phase in the reactor was raised to 78° C. within 30 minutes, and kept at a constant temperature for 10 minutes to form the primary emulsion (a).
[0067] B. Preparation of monomer mixture
[0068] Add 30 parts of N-tribromophenylmaleimide, 44 parts of styrene, 25 parts of acrylonitrile, and 0.15 parts of mercaptan into the mixing tank at 28°C, start stirring and mix to form a homogeneous monomer mixture (b) .
[0069] C. Preparation of Monomer Emulsion
[0070] Add 130 parts of desalinated water, 0.35 parts of potassium persulfate, 1.7 parts of sodium lauryl sulfate and 1.0 part of synthetic fatty acid potassium into the emulsifier at 28°C, sta...
Embodiment 3
[0076] A. Preparation of Primary Emulsion
[0077] Add 30 parts of desalted water, 0.3 parts of sodium lauryl sulfate, 0.7 parts of styrene, 2.3 parts of acrylonitrile, and 0.1 parts of potassium persulfate into a stirred reactor at 35°C, and start stirring for emulsification. After 30 minutes of emulsification, the temperature of the water phase in the reactor was raised to 78° C. within 30 minutes, and kept at a constant temperature for 10 minutes to form the primary emulsion (a).
[0078] B. Preparation of monomer mixture
[0079] Add 30 parts of N-tribromocyclohexylmaleimide, 44 parts of styrene, 23 parts of acrylonitrile, and 0.12 parts of mercaptan into the mixing tank at 35°C, start stirring and mix to form a homogeneous monomer mixture (b) .
[0080] C. Preparation of Monomer Emulsion
[0081] Add 130 parts of desalted water, 0.35 parts of potassium persulfate, 1.7 parts of sodium lauryl sulfate and 1.0 part of synthetic fatty acid potassium into the emulsifier at 3...
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