Preparation technology of phenolic resin with high adhesive force
A phenolic resin and preparation technology, which is applied in the field of preparation of high adhesion phenolic resin, can solve the problems of affecting production efficiency and low curing rate of modified phenolic resin, so as to increase curing rate, improve compatibility, and promote compatibility sexual effect
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Embodiment 1
[0027] S1: Add 540kg of p-tert-butylphenol, 547.2kg of formaldehyde and 1.6kg of lime into the autoclave, stir and mix evenly, and heat. The weight ratio of p-tert-butylphenol to formaldehyde is between 1:1 and 1.5, and the weight ratio of formaldehyde to lime can be between 300 and 350:1. In this embodiment, the above ratio is used for the test.
[0028] S2: When the temperature in the reactor reaches 90-100°C, the temperature is controlled to be stable, and p-tert-butylphenol and formaldehyde start to react under the action of catalyst lime, which lasts for about 10 hours.
[0029] S3: Add 24kg of hydrochloric acid and 48kg of toluene into the reactor, continue the reaction and concentrate. A large amount of waste gas is generated in this step reaction, and the generated waste gas is transported to the condenser for condensation, and the condenser is filled with cold water to absorb and condense the waste gas.
[0030] S4: transfer the concentrated reaction solution to the ...
Embodiment 2
[0032] S1: Add 540kg of p-tert-butylphenol, 540kg of formaldehyde and 1.8kg of lime into the autoclave, stir and mix evenly, and heat.
[0033] S2: When the temperature in the reactor reaches 90-100°C, the temperature is controlled to be stable, and p-tert-butylphenol and formaldehyde start to react under the action of catalyst lime, which lasts for about 10 hours.
[0034] S3: Add 24kg of hydrochloric acid and 48.8kg of toluene into the reactor, continue the reaction and concentrate. A large amount of waste gas is generated in this step reaction, and the generated waste gas is transported to the condenser for condensation, and the condenser is filled with cold water to absorb and condense the waste gas.
[0035] S3': Add hydrogenated palmityl primary amine to the reaction kettle, continue heating, maintain at 100-110°C, and stir.
[0036] S4: Transfer the concentrated reaction solution to the discharge tank, measure and package, and finally obtain 790 kg of packaged products...
Embodiment 3
[0038] S1: Add 540kg of p-tert-butylphenol, 648kg of formaldehyde and 1.85kg of lime into the autoclave, stir and mix evenly, and heat.
[0039] S2: When the temperature in the reactor reaches 80-90°C, the temperature is controlled to be stable, and p-tert-butylphenol and formaldehyde start to react under the action of catalyst lime, which lasts for about 10 hours.
[0040] S3: Add 25kg of hydrochloric acid and 50kg of toluene into the reactor, continue the reaction and concentrate. A large amount of waste gas is generated in this step reaction, and the generated waste gas is transported to the condenser for condensation, and the condenser is filled with cold water to absorb and condense the waste gas.
[0041] S3": Conduct electrolysis experiments on the reaction solution in the reactor. The reactor is both an electrolytic cell, and the two electrodes are platinum electrodes and graphite electrodes.
[0042] S4: transfer the concentrated reaction solution to the discharge ta...
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