Polycondensation production technology of melamine moulding particles and melamine moulding powder
A technology of molding particles and process technology, which is applied in the field of plastic production technology, and can solve problems such as high energy consumption, low density, and human body damage
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[0006] The specific implementation of the present invention will be further described below in conjunction with examples.
[0007] The slurry preparation stage is carried out in the slurry reactor. Add 60 parts of formaldehyde, 3 parts of amine toluenesulfonate, 4 parts of methanol and 5 parts of water into the slurry reactor, and heat and increase the temperature for stirring. When the thermometer shows that the temperature of the material reaches 50℃, take a sample to test the pH value, add urotropine according to the pH value, and adjust the pH value of the material to 8.0-8.5. During this process, the material continues to react and heat up. When it reaches 60°C, add 40 parts of melamine to the slurry reactor, then turn on the steam and heat up to boiling at the fastest speed. When the slurry is boiling, the thermometer temperature generally shows 95~ 97°C. 15 minutes after the slurry is boiled, take a sample of 30ml for measurement, and decide whether to continue heating a...
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